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ICON Public Company

iclr · NASDAQ Healthcare
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Industry Medical - Diagnostics & Research
Employees 10,000+
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FY2023 Annual Report · ICON Public Company
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Annual Report 2023
ICON plc and Subsidiaries 

Registered number 145835

ICON plc and Subsidiaries

Consolidated Financial Statements

Year ended 31 December 2023 

Registered number: 145835

  
[This page intentionally left blank] 

Directors’ Report and Consolidated Financial Statements

Contents

Directors’ and Other Information

Directors’ Report

Statement of Directors’ Responsibilities in respect of the Directors’ report and the financial statements

Independent Auditor’s Report to the members of ICON plc

Consolidated Statement of Profit and Loss

Consolidated Statement of Comprehensive Income

Consolidated Statement of Financial Position

Consolidated Statement of Changes in Equity

Consolidated Statement of Cash Flows 

Notes to Consolidated Financial Statements

Company Statement of Financial Position

Company Statement of Changes in Equity

Notes to Company Financial Statements

Reconciliation from IFRS to US Accounting Polices

Appendix A: Risk Factors

Page

2

3

30

31

38

39

40

41

43

44

135

136

138

145

149

1Directors’ and Other Information

Directors

Company secretary

Registered office

Auditor

Solicitors

Registrars

Bankers

Ciaran Murray (Irish –  Chair)
Dr. Steve Cutler (Australian – Chief Executive Officer)
Rónán Murphy (Irish – Non-Executive)
Dr. John Climax (Irish – Non-Executive)
Joan Garahy (Irish – Non-Executive)
Eugene McCague (Irish – Non-Executive)
Julie O'Neill (Irish – Non-Executive)
Dr. Linda Grais (American - Non-Executive)

Diarmaid Cunningham

South County Business Park
Leopardstown
Dublin 18

KPMG
1 Stokes Place
St. Stephen’s Green
Dublin 2

A & L Goodbody
International Financial Services Centre
North Wall Quay
Dublin 1

Cahill Gordon & Reindel LLP
32 Old Slip 
New York
NY 10005
USA

Computershare Investor Services (Ireland) Limited
3100 Lake Drive
Citywest Business Campus
Dublin 24

Citibank
Canada Square 
Canary Wharf
London E14 5LB 
United Kingdom

JP Morgan Chase Bank N.A.
4 New York Plaza
New York
NY 10004 
USA

2Directors’ Report 

The  Directors  present  their  report  and  audited  Consolidated  and  Company  Financial  Statements  of  ICON  plc  (“the 
Company”, “ICON”, "we", "our" or "us"), a public limited company incorporated in the Republic of Ireland, and its subsidiary 
undertakings (“the Subsidiaries”), with the Company and the Subsidiaries being together (“the Group”) for the year ended 
31 December 2023.

The Company’s ordinary shares are traded on the NASDAQ market. The Company is considered a foreign private issuer in 
the U.S. and accordingly it is not subject to the same ongoing regulatory requirements as a U.S. registered company with a 
primary listing on the NASDAQ market.   

These  Consolidated  and  Company  Financial  Statements  (together  “the  financial  statements”)  for  the  year  ended 
31  December  2023  are  prepared  in  accordance  with  IFRS  as  adopted  by  the  EU  and  meet  the  reporting  requirements 
pursuant  to  Irish  Company  Law.  In  addition  to  the  Consolidated  Financial  Statements  contained  in  this  annual  report,  we 
also  prepare  separate  consolidated  financial  statements  on  Form  20-F  pursuant  to  the  rules  and  regulations  of  the  U.S. 
Securities  and  Exchange  Commission  ("SEC")  and  in  accordance  with  accounting  principles  generally  accepted  in  the 
United States (U.S. GAAP). The Form 20-F (under U.S. GAAP) is a separate document, a copy of which may be obtained 
from the Company’s website www.iconplc.com. IFRS differs in certain respects from U.S. GAAP, details of which are set out 
on pages 145 to 148 of this annual report. 

Principal activities, business review and future developments

ICON public limited company (“ICON plc”) is a contract research organisation (“CRO”), founded in Dublin, Ireland in 1990. 
For  over  thirty  years  we  have  grown  significantly  to  become  a  leading  global  provider  of  outsourced  development  and 
services to pharmaceutical, biotechnology, medical device and government and public health organisations. Our mission is 
to  improve  the  lives  of  patients  by  accelerating  the  development  of  our  customers’  drugs  and  devices  through  innovative 
solutions.

We  are  a  public  limited  company  in  Ireland  and  operate  under  the  Irish  Companies Acts.  Our  principal  executive  office  is 
located at: South County Business Park, Leopardstown, Dublin 18, Republic of Ireland. The contact telephone number of 
this office is +353 1 2912000. Our website is www.iconplc.com. 

ICON  is  a  leading  global  provider  of  outsourced  development  and  commercialisation  services  to  pharmaceutical, 
biotechnology, medical device, and government and public health organisations. We offer a full range of clinical, consulting 
and commercial services that range from clinical development strategy, planning and trial design, to full study execution, and 
post-market commercialisation. ICON provides its services across a range of clinical outsourcing operating models including 
strategic partnerships, preferred provider, full-service delivery to functional service provision and stand-alone services. 

3Directors’ Report (continued)

We  specialise  in  the  strategic  development,  management  and  analysis  of  programs  that  support  all  stages  of  the  clinical 
development process, from compound selection to Phase I-IV clinical studies. We earn revenue by providing a number of 
different services to our customers. Those services are integral components of the clinical development process and include 
clinical trial management, consulting, contract staffing, data solutions and laboratory services. 

Our  vision  is  to  be  the  healthcare  intelligence  partner  of  choice  by  delivering  industry  leading  solutions  and  best  in  class 
performance in clinical development. We believe that we are one of a select group of CROs with the expertise and capability 
to  conduct  clinical  trials  in  the  major  therapeutic  areas  on  a  global  basis  and  have  the  operational  flexibility  to  provide 
development services on a stand-alone basis or as part of an integrated full-service solution. In order to achieve this vision, 
we  are  capitalising  on  the  enhanced  scale,  technology  and  data  analytics  capabilities  that  the  recent  acquisition  of  PRA 
Health Sciences delivered. 

ICON  maintains  a  sustained  focus  on  research  and  development.  We  continue  to  enhance  our  portfolio  of  data  solutions 
and  decentralised  clinical  trial  technology  through  the  development  of  industry-leading  technologies  and  processes  to 
support our clients. ICON is leading the industry transformation through four key levers: transforming clinical trials, site and 
patient centricity, healthcare intelligence and applied innovation, and seamless, integrated service delivery.  

At  31  December  2023,  we  employed  approximately  41,100  employees  in  106  locations  in  53  countries.  During  the  year 
ended 31 December 2023, we derived approximately 40.4%, 48.7% and 10.9% of our revenue in the United States, Europe 
and Rest of World, respectively. 

We  have  achieved  strong  growth  since  our  foundation  in  1990,  as  a  global  provider  of  outsourced  development  and 
commercialisation  services  to  pharmaceutical,  biotechnology,  medical  device  and  government  and  public  health 
organisations.  We focus our innovation on those factors that are critical to our clients - reducing time to market, reducing 
cost  and  increasing  quality.  Our  global  team  has  extensive  experience  in  a  broad  range  of  therapeutic  areas.  ICON  has 
been recognised as one of the world's leading Contract Research Organisations (''CROs") through a number of high-profile 
industry awards (see www.iconplc.com/awards).  

As  our  market  has  evolved,  biopharmaceutical  companies  are  tackling  productivity  challenges,  budget  constraints  and 
greater demands to demonstrate product value; all of which are placing increased pressure on their revenues and levels of 
profitability. However, these trends have generally been positive for CROs, as increased outsourcing has been adopted by 
these companies as they seek to create greater efficiencies in their development processes, convert previously fixed costs 
to variable, and accelerate time to market for new treatments.

Regulatory  and  reimbursement  pressures  will  increase  the  emphasis  on  late  stage  (post  marketing)  research,  while 
increasing  requirements  to  demonstrate  the  economic  value  of  new  treatments.  As  a  result,  outcomes  and  comparative 
effectiveness  research  will  most  likely  be  required  in  order  to  secure  on-going  product  reimbursement.  Furthermore,  we 
believe  advances  in  molecular  biology  and  genetics  will  drive  further  growth  in  innovation  in  the  long  term  which  in  turn 
should create further growth opportunities for both biopharma companies and their outsource development partners.

We expect that continued outsourcing will be a core strategy of clients in the near term as they respond to the increased 
pressures on their revenues and profitability. Larger clients were the first to form strategic partnerships with global CROs in 
an  effort  to  reduce  the  number  of  outsource  partners  with  whom  they  engage  and  to  reduce  inefficiencies  in  their  current 
drug  development  models.  More  recently  we  have  seen  the  increasing  adoption  of  this  partner  model  with  mid-tier 
pharmaceutical  and  biotechnology  firms  as  they  also  seek  to  drive  development  efficiencies. As  outsourcing  penetration 
increases,  we  believe  clients  may  seek  a  greater  level  of  integration  of  service  offerings  from  CROs,  although  some  will 
continue  to  purchase  services  on  a  stand-alone  basis.  Creating  greater  connectivity  and  “seamlessness”  between  our 
services  and  the  sharing  of  “real-time”  clinical,  operational  and  “real  world”  data  with  clients  will  therefore  become 
increasingly important for CROs. ICON will seek to benefit from this increased outsourcing by clients to grow our business 
by  increasing  market  share  with  our  existing  client  base  and  adding  new  clients  within  the  Phase  I-IV  outsourced 
development services market; the aim being to ensure we will be considered for all major Phase I-IV projects.

Delivery  of  our  mission  and  strategy  is  focused  on  our  four  strategic  pillars,  being  (i)  Patient Access  &  Engagement  (ii) 
Career Development & Employer of choice (iii) Enduring Customer Partnerships and (iv) Healthcare Intelligence & Applied 
Innovation. 

4Directors’ Report (continued)

Patient Access & Engagement

ICON has a focused patient, site and data strategy, which is helping us to improve site identification, study placement and 
patient recruitment and retention. 

Accellacare  is  ICON's  global  clinical  research  network  offering  customers  a  wide  range  of  stand-alone  and  integrated 
solutions at site or in patients' homes as part of decentralised trials. Our patient centric approach accelerates study start-up 
and increases patient recruitment and retention for the pharmaceutical, biotechnology and medical device industries. 

Accellacare In-Home Services takes study visits directly to patients where they live, work, study or play in all phases and 
therapeutic areas of clinical trials. By bringing trial visits directly to patients, we ease the burden of participating in clinical 
research to increase patient recruitment, retention and diversity. Accellacare In-Home Services has experience in more than 
450  clinical  trials,  tailoring  our  services  to  fit  each  study's  specific  requirements  across  more  than  50  countries.  This 
cohesive  approach  is  leading  to  higher  patient  recruitment  and  retention  rates. Accellacare  is  also  achieving  faster  study 
start-up  for  its  customers  through  efficiencies  gained  in  central  process  management  including  budget  and  contracting, 
which  can  otherwise  be  a  source  of  delay.  This  combined  with  a  finely  tuned  feasibility  approach  allows  the  network  to 
identify and recruit more patients to studies, in a wide range of therapeutic areas, in a shorter time frame. Accellacare is an 
important  part  of  the  integrated  patient,  site  and  data  strategy,  helping  us  to  improve  patient  recruitment  and  retention. 
Through  Accellacare,  we  are  committed  to  delivering  on  the  promise  of  patient  centricity  in  clinical  research  whilst  also 
providing  investigators  with  innovative  treatments  for  their  patients  with  a  quality-focused  clinical  research  infrastructure 
supported by experienced professionals globally.  

The Accellacare Site Network encompasses more than 50 sites across 6 countries covering the United States, Europe and 
South Africa. Accellacare offers a quality focused clinical research infrastructure delivering value and benefits to sponsors. 
Accellacare supports customers with faster start-up and the time from site selection to site initiation visit is on average 30% 
faster  when  compared  to  other  sites.  Furthermore, Accellacare  achieves  an  average  of  40%  more  patients  per  site  when 
compared to other sites.

In  2023,  Accellacare  Site  Network  optimised  its  site  partnerships  and  focused  on  enhancing  capabilities  within  its  US 
locations  with  a  continued  focus  on  Central  nervous  system  (CNS)  capabilities.  ICON  fully  acquired  the  Oncacare  site 
network in April 2023.

Finding  and  engaging  suitable  patients  to  conduct  clinical  trials  is  one  of  the  biggest  issues  facing  the  drug  development 
industry today. Less than 1% of the US population participates in clinical trials and the performance of investigative sites that 
do  take  part  in  research  is  uneven,  hard  to  predict  and  many  trials  do  not  meet  the  initial  recruitment  goals. The  current 
market challenge in patient enrolment creates an opportunity for ICON to differentiate its service offering and we are working 
to reduce patient recruitment times through enhanced site and investigator selection based on key performance metrics and 

5Directors’ Report (continued)

through  use  of  our  proprietary  FIRECREST  technology  which  is  used  to  train  and  support  sites  during  the  development 
process. 

ICON's  site  networks  enhance  our  ability  to  enrol  patients  onto  the  clinical  studies  we  perform.  We  have  also  developed 
strategic alliances with investigator site groups and healthcare systems in all major global research markets. In partnership 
with  others,  we  are  pioneering  patient  recruitment  solutions  that  leverage  cognitive  computing  to  transform  clinical  trial 
matching  and  allow  a  data-driven  approach  to  deliver  the  right  patients  for  trials.  One  Search  is  our  intuitive,  integrated 
workflow  and  interrogation  tool  that  enables  access  to  multiple  data  sources  and  provides  the  visualisation  and  tools 
necessary  for  optimum  site  identification  based  on  ICON  and  industry  data  of  capability,  experience  and  performance. 
Scoring on enrolment performance, speed of start-up and quality supports better site selection.

Career development and employer of choice

People  have  long  been  central  to  our  mission  to  improve  the  lives  of  patients  by  accelerating  the  development  of  our 
customers’  drugs  and  devices  through  innovative  solutions.  We  encourage  our  people  to  bring  flexibility,  innovation,  and 
determination  to  every  situation.  By  doing  so,  our  people  can  build  exciting  and  rewarding  careers,  and  deliver  results  to 
bring life-changing medicines to market and to maintain our success as an industry leader. 

Our leadership and talent programs contribute to the enhanced retention of our employees, better project deliverables for 
our customers and the enhanced financial performance of the business.

We  aim  to  be  an  industry  leader:  a  company  where  talented  people  come  to  do  important  work,  a  place  where  our 
employees can shape the future of healthcare, grow their careers, and reach their full potential. We have long held a deep 
commitment to cultivating strong people practices. This includes competitive total rewards packages along with a focus on 
continuous learning. We nurture a culture of development and aim to boost engagement by supporting our people’s growth, 
both personally and professionally. We are dedicated to finding opportunities for our employees to grow and develop.

Our success depends on the knowledge, capabilities, and quality of our people. To improve their skills, we are committed to 
providing continuous learning. This commitment is underpinned by clearly defined competencies, which offer employees a 
clear path along which to develop skills and advance their careers.

To support employees at every stage of their career journeys, training and development programs are aimed at advancing 
scientific,  technical,  and  business  knowledge.  Programs  include  tailored  CRA  academies  and  a  range  of  project 
management curricula, therapeutic-focused programs, and people leader development programs.

Enduring customer partnerships

We  continue  to  focus  on  expanding  and  deepening  our  partnerships  with  existing  customers,  while  also  developing  new 
customer relationships. 

Strategic client relationships will increasingly manifest themselves in many different forms. Many of these relationships will 
require innovative forms of collaboration across ICON service areas and departments and will therefore require increased 
flexibility to offer services on both a standalone functional basis and as part of a fully integrated service solution. To support 
this objective, we continue to evolve our collaboration and delivery models, invest in technology that will enable closer data 
integration across our service areas and enhance our project and program management capabilities.

To  meet  the  evolving  needs  of  both  our  existing  and  new  clients  we  continue  to  enhance  our  capabilities  through  both 
organic service  development and targeted acquisitions.  In  addition, we continue to enhance our scientific and therapeutic 
expertise  to  support  our  customers  in  specific  areas  including  oncology,  orphan  and  rare  diseases,  CNS,  dermatology, 
infectious disease and women's health. 

ICON has extensive experience in vaccine clinical development for commercial businesses, governments and NGOs. This 
experience enabled us to play a significant role in the search for vaccines and treatments for COVID-19. 

Of particular note was our work in partnering with Pfizer and BioNTech on their investigational COVID-19 vaccine program - 
the  first  to  announce  positive  efficacy  results  from  a  Phase  3,  late-stage  study  of  a  COVID-19  vaccine  and  to  receive 
Emergency Use Authorisation in individuals 16 years of age or older from the U.S. Food and Drug Administration.

ICON mobilised a large global team of therapeutic and operational specialists to partner on the implementation of Pfizer‘s 
and BioNTech’s strategic plan and framework for the  monitoring of the trial, which included a high level of remote clinical 
monitoring  and  source  data  verification  in  addition  to  on-site  monitoring,  safeguarding  data  quality  and  integrity  in  the 
evolving  pandemic  environment.  The  team  combined  the  benefits  of  full  service  and  functional  service  provider  clinical 
operating models to increase efficiency and ensure rapid study start-up.

6Directors’ Report (continued)

ICON  worked  with  153  sites  in  the  US,  Europe,  South Africa  and  Latin America  to  ensure  the  recruitment  of  more  than 
44,000  trial  participants  over  a  four-month  period  in  late  2020.  ICON  provided  site  training,  document  management  and 
operational support for patient Informed Consent Form review, coordinated eConsent in most countries, and assisted with 
clinical  supply  management  services.  Achieving  the  unprecedented  trial  timelines,  while  maintaining  high  standards  of 
quality, undertaken in response to the pandemic required collaboration and strong communication between the ICON and 
sponsor project teams.

We continue to target growth in under-penetrated CRO market segments. Penetration within medical device companies has 
lagged that of bio-pharma firms but is beginning to accelerate. EU regulatory reform enacted in 2017 is a further catalyst to 
growth in this segment as it included stricter requirements to perform clinical evaluations and post-sale surveillance. In early 
2020, ICON acquired MedPass which has further enhanced our value offering in this area.  

We also invested significantly in our site and patient network (Accellacare), and consider our expertise and offering in this 
area as one of our strategic pillars.  

Healthcare intelligence and applied innovation

Innovation  at  ICON  is  focused  on  the  factors  that  are  critical  to  our  clients.  We  develop  integrated  technologies  to 
significantly  enhance  the  efficiency  and  productivity  of  clients’  drug  and  device  development  programs,  providing  true 
transparency across all areas of a study.

ICON is focused on applying innovation that can help our customers improve their development outcomes. We are focusing 
this  innovation  in  three  critical  areas:  improving  clinical  trial  design  and  execution;  faster  and  more  predictable  patient 
recruitment; and evolving clinical trials to be more patient centric which includes data collection and analysis directly from 
patient’s digital devices. Our approach to developing solutions to these challenges incorporates partnering with best-in-class 
technology providers but is also supported by a suite of differentiated ICON proprietary technologies.

Through an informatics strategy built around key platforms including ICONIK and Health Cloud, we have continued to invest 
in building our capabilities in the gathering, analysis and application of real world patient data within both the clinical trial and 
post-trial observational study environments. ICONIK and Health Cloud enable ICON to deliver services such as Risk Based 
Monitoring (RBM) which uses near-real time clinical data to drive monitoring visit schedules, enabling better decision making 
and  the  successful  implementation  of  clinical  trial  strategies  that  significantly  improve  efficiency  in  clinical  trials  thereby 
reducing overall cost and time to market whilst better protecting patient safety.

ICON’s  proprietary  One  Search  tool  helps  to  efficiently  and  effectively  identify  optimum  trial  sites.  It  synthesizes  multiple 
data sources, applying AI machine learning and rich data visualisation for optimum site identification, resulting in improved 
study  start-up  and  site  cycle  times,  significant  reductions  in  the  percentage  of  low  performing  sites  and  increasing  the 
percentage of studies meeting planned First Patient In (FPI).

FIRECREST is ICON’s proprietary comprehensive site performance management system. It is a web-based solution which 
enables accurate study information, including protocol information, training manuals and case report forms, to be rolled out 
quickly  and  simultaneously  to  investigative  sites.  It  allows  site  behaviour  to  be  tracked  to  ensure  training  is  understood, 
procedures are being followed and that timelines and study parameters are met. It can significantly reduce the number of 
data queries originated from investigator sites. FIRECREST is now integrated into the ICON Safety Reporting Solution and 
provides a Site Question Management Tool. 

The  ICON  Patient  Engagement  Platform  was  developed  to  support  improved  patient  experience  and  enrolment  in  clinical 
trials. The web-based patient engagement platform, provides patients with study specific information and connectivity with 
the  nearest  investigative  site.  The  solution  supplements  patient  recruitment  outreach  by  sites  and  increases  visibility  of 
potential study participants for sponsors and sites. An easy to navigate, user friendly interface guides the patient to new and 
ongoing studies in their particular indication and a pre-qualification questionnaire helps to determine if the study is a right fit 
for them. If the patient decides to register interest, they are given the option to select their nearest investigative site. This 
establishes  connection  with  the  site  and  the  patient  can  then  choose  to  contact  the  site  or  ask  to  be  contacted  for  pre-
screening.

We  positively  impact  patients’  lives  by  understanding  their  journeys  and  how  they  can  benefit  from  drugs  currently  in 
development and on the market. We do this by developing a holistic, global data environment across pharmaceutical and 
biotech companies (development to commercial) that gives insights into patients, and how best to serve them. Alongside the 
application of these technology solutions we are also focused on innovation through the redesign and where appropriate the 
automation of current clinical trial processes.

7Directors’ Report (continued)

Operational excellence, quality and delivery

Quality  is  the  foundation  of  our  success.  The  quality  of  our  work  is  vital  to  our  mission  of  bringing  better  medications  to 
patients  around  the  world.  We  are  committed  to  maintaining,  supporting,  checking  and  improving  our  quality  systems  to 
meet or exceed the quality standards demanded by our clients, patients and regulatory authorities. We focus our innovation 
on the factors that are critical to our clients – reducing time to market, reducing cost and increasing quality – and our global 
team of experts has extensive experience in a broad range of therapeutic areas.

Quality project execution underpins all that we do and we have an ongoing focus on developing our people and processes 
to continue to enhance our service delivery. We also deploy supporting technologies which we believe will enable faster and 
deeper insights into the quality of trial data.

We  are  focused  on  operational  excellence  across  our  support  functions,  and  we  operate  a  global  business  support 
infrastructure  across  functions  including  finance,  information  technology,  facilities,  human  resources,  legal  and  quality 
assurance. This enables us to enhance the service levels across these support areas whilst driving down the costs of the 
service provision

Principal activities of the Company

The  principal  activity  of  the  Company  is  to  act  as  a  holding  Company. The  Company  also  operates  branch  offices:  ICON 
Poland in Warsaw, ICON Latvia in Riga and ICON Lithuania in Vilnius. These branches provide contract research services 
to the pharmaceutical industry. 

Acquisition activity

Since  ICON  was  founded,  the  Company  has  expanded  through  organic  growth,  together  with  a  number  of  strategic 
acquisitions to enhance its expertise and capabilities in certain areas of the clinical development process and to broaden the 
service portfolio and add scale to existing services. 

Recent investments, which continue to strengthen our service offerings to meet the needs of our customers include: 

On  2  October  2023,  the  Company  acquired  100%  of  the  equity  of  BioTel  Research,  LLC  which  comprised  the  business 
formerly known as Philips Pharma Solutions, a leading provider of medical imaging and cardiac safety monitoring services.

On  20 April  2023,  the  Company  completed  the  purchase  of  the  majority  investor's  51%  voting  share  capital  of  Oncacare 
Limited (such that Oncacare and its subsidiaries became wholly-owned subsidiaries of the ICON Group),  a global network 
of oncology research sites that provide a unique patient recruitment and delivery solution for the clinical research industry.

On  1  July  2021,  the  Company  completed  the  acquisition  of  PRA  Health  Sciences,  Inc.  ("PRA")  by  means  of  a  merger 
whereby Indigo Merger Sub, Inc., a Delaware corporation and subsidiary of ICON, merged with and into PRA, the parent of 
the PRA Health Sciences ("the Merger"). 

8Directors’ Report (continued)

With approximately 41,100 employees across the globe, ICON has established relationships with a majority of the world’s 
top pharmaceutical and biotech companies. We believe the Company now has the expertise, technology, and data assets to 
lead the industry into a new paradigm for bringing clinical research to more patients and enabling expanded capabilities for 
customers. We believe the Merger will deliver a transformational effect on ICON through:

Scale:  With  a  deeper  clinical,  commercialisation  and  consulting  services  portfolio,  a  broader  geographic  footprint, 
depth  in  therapeutic  expertise,  and  data-driven  healthcare  technology,  the  Company  can  deliver  enhanced  globally 
scaled expertise & solutions for all customers and patients.

Focus:  The  Company  will  have  a  singular  focus  on  clinical  research  and  commercialisation,  leveraging 
transformational  technology  and  innovation  to  execute  clinical  trials  from  Phase  1  to  post-approval  studies  with  the 
highest quality, expertise and speed. 

Speed to market: Our extensive services portfolio, digital and data technology capabilities, and enhanced access to 
more diverse patient populations, have been combined with flexible delivery approaches and partnership models – all 
with the aim of reducing development time and costs.

Flexible partnership models: ICON has partnerships with a majority of world’s top biopharma and biotech companies 
worldwide.  ICON  is  a  global  leader  in  Functional  Service  Provision  and  a  top  global  provider  of  full  service  clinical 
research. 

Differentiated DCT platform, healthcare intelligence & technology: ICON can deliver differentiated decentralised 
and  hybrid  trial  solutions  through  a  suite  of  capabilities,  including  mobile  health,  commercial  connected  health 
platforms,  real  world  data  and  information  solutions,  a  global  site  network,  home  health  services  and  wearables 
expertise.

Access to patients: ICON offers customers enhanced access to a larger global pool of more diverse patients through 
its  global  site  network  (Accellacare),  specialised  oncology  network  (Oncacare),  a  paediatric  site  network,  in-home 
clinical services and a network of six Phase I clinical research units across the United States and Europe. 

Future developments

Please  see  note  31  Subsequent  events  for  details  of  events  in  the  period  from  year-end  to  the  approval  of  the  financial 
statements.   

The  Group  looks  forward  to  continuing  to  expand  through  organic  growth  in  2024  and  beyond,  together  with  strategic 
acquisitions to enhance its expertise and capabilities in certain areas of the clinical development process and to continue to 
deliver  on  the  Company’s  mission  to  accelerate  the  development  of  drugs  and  devices  that  save  lives  and  improve  the 
quality of life.   

9Directors’ Report (continued)

Results and dividends

The results for the financial year and state of affairs of the Group are set out in the Consolidated Statement of Profit and 
Loss,  the  Consolidated  Statement  of  Comprehensive  Income,  the  Consolidated  Statement  of  Financial  Position,  the 
Consolidated  Statement  of  Changes  in  Equity  and  the  Consolidated  Statement  of  Cash  Flows  on  pages  38  to  43 
respectively. The Directors do not propose the payment of a dividend for the year ended 31 December 2023.

The following table sets forth for the periods indicated certain financial data as a percentage of revenue and the percentage 
change in these items compared to the prior period, being the key performance indicators used by management. The trends 
illustrated in the following table may not be indicative of future results.

Revenue

Costs and expenses

Direct costs excluding exceptional items

Other operating expenses excluding exceptional items

Operating profit excluding exceptional items

Transaction and integration related expenses

Restructuring expenses

Operating profit including exceptional items

31 December
2023

31 December
2022

As a percentage of revenue

Percentage 
increase/
decrease

 100 %

 100 %

 5.0 %

 70.4 %

 16.6 %

 13.0 %

 0.5 %

 0.6 %

 11.9 %

 71.4 %

 17.3 %

 11.3 %

 0.5 %

 0.4 %

 10.4 %

 3.6 %

 1.0 %

 20.0 %

 11.3 %

 45.7 %

 19.5 %

Twelve months ended 31 December 2023 compared to twelve months ended 31 December 2022 

Revenue

Revenue

8,120,176   

7,733,386   

386,790 

 5.0% 

31 December
2023

31 December
2022

Change

$’000

$’000

$’000

%

Revenue  for  the  year  ended  31  December  2023  increased  by  $386.8  million,  or  5.0%,  to  $8,120.2  million  from  $7,733.4 
million  for  the  year  ended  31  December  2022.  For  the  year  ended  31  December  2023  we  derived  approximately  40.4%, 
48.7% and 10.9% of our revenue in the United States, Europe and Rest of World, respectively. The increase in revenues in 
the year ended 31 December 2023 is due to the continued organic growth across the Company's markets.                                                                                                                                                                           

Revenues  from  our  top  five  customers  amounted  to  $2,174.8  million  in  the  year  ended  31  December  2023  compared  to 
$2,187.4  million  in  the  year  ended  31  December  2022  or  26.8%  and  28.3%  respectively.  New  customer  accounts  are 
continually added across the full portfolio of large pharma customer, mid-tier pharma customers and biotech customers. 

Revenue  in  Ireland  increased  by  $392.5  million  in  the  year  ended  31  December  2023,  to  $2,377.1  million,  compared  to 
$1,984.6  million  for  the  year  ended  31  December  2022.  Revenue  in  Ireland  during  the  year  ended  31  December  2023 
increased by 19.8% compared to an overall increase in Group revenue of 5.0%. Revenue in Ireland is principally a function 
of our global contracting model (see note 2 - Segmental information). 

Revenue in the Rest of Europe decreased by $43.6 million or 2.7%, to $1,574.8 million, compared to $1,618.4 million for the 
year ended 31 December 2022. Revenue in the U.S. decreased by $282.8 million or 7.9%, to $3,283.8 million, compared to 
$3,566.6 million for the year ended 31 December 2022. Revenue in our Rest of World (‘Other’) region increased by $320.6 
million or 56.9%, to $884.5 million compared to $563.9 million for the year ended 31 December 2022. 

10 
Directors’ Report (continued)

Direct costs

Direct costs ($'000)

% of revenue 

31 December
2023

31 December
2022

Change

5,719,025 

5,521,522 

197,503 

 70.4% 

 71.4% 

 3.6% 

Direct costs for the year ended 31 December 2023 increased by $197.5 million or 3.6%, to $5,719.0 million from $5,521.5 
million  for  the  year  ended 31  December  2022.  Direct  costs  consist  primarily  of  investigator  and  other  reimbursable  costs, 
compensation, associated fringe benefits and share-based compensation expense for project-related employees and other 
direct project driven costs. The increase in direct costs arose due to an increase in personnel related costs, laboratory costs, 
travel and other direct project driven costs. This was offset by a decrease in third party investigator and other reimbursable 
costs in the year. As a percentage of revenue, direct costs have decreased to 70.4% compared to 71.4% for the year ended 
31 December 2022.

Other Operating Expenses

Other operating expenses excluding exceptional items ($'000)

1,347,694 

1,334,235 

13,459 

% of revenue excluding exceptional items

 16.6% 

 17.3% 

 1.0% 

Other operating expenses including exceptional items ($'000)

1,437,260 

1,405,073 

32,187 

% of revenue including exceptional items

 17.7% 

 18.2% 

 2.3% 

31 December
2023

31 December
2022

Change

Other operating expenses for the year ended 31 December 2023 increased by $13.5 million, or 1.0%, to $1,347.7 million 
compared  to $1,334.2  million  for  the  year  ended 31  December  2022  (excluding  exceptional  items).  Other  operating  costs 
comprise primarily of compensation, related fringe benefits and routine share based compensation expense for non-project-
related  employees,  recruitment  expenditures,  professional  service  costs,  advertising  costs,  costs  related  to  facilities  and 
information  systems,  depreciation  and  amortisation. As  a  percentage  of  revenue,  other  operating  expenses decreased  to 
16.6%  of    revenue,  compared  to  17.3%  of  revenue  for  the  year  ended  31  December  2022  (excluding  exceptional  items). 
The decrease in costs for the year ended 31 December 2023 primarily reflects decreases in general overhead, personnel 
costs,  share  compensation  expense,  amortisation  of  intangible  assets  and  marketing  costs  offset  by  movements  in 
professional  fees,  foreign  exchange,  depreciation,  and  facilities  costs.  Further  the  Group  recorded  a  gain  of  $6.2  million 
related to the Oncacare acquisition during the year ended 31 December 2023.

Exceptional items - Restructuring, transaction and integration-related expenses associated with the Merger

Transaction and integration related ($'000)

% of revenue

Restructuring ($'000)

% of revenue

31 December
2023

31 December
2022

Change

44,176 

39,695 

 0.5 %

 0.5 %

4,481 

 11.3 %

45,390 

31,143 

14,247 

 0.6% 

 0.4% 

 45.7 %

During the year ended 31 December 2023, the Group incurred $89.6 million for restructuring, transaction and integration-
related expenses. The charge includes transaction and integration costs of $44.2 million associated with professional fees, 
retention agreements and ongoing integration activities.

The Group has also undertaken a restructuring programme aimed at realigning its workforce as well as reviewing its global 
office footprint and optimising its locations to best fit the requirements of the Company. This programme has resulted in a 
charge of $45.4 million in the year ended 31 December 2023 ( 31 December 2022: $31.1 million).

We  expect  to  incur  some  additional  expenses  associated  with  the  Merger;  however,  the  timing  and  the  amount  of  these 
expenses depends on various factors including the execution of integration activities.

11 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Directors’ Report (continued)

Operating profit

31 December
2023

31 December
2022

Change

Operating profit excluding exceptional items ($'000)

1,053,457 

877,629 

175,828 

% of revenue excluding exceptional items

 13.0% 

 11.3% 

 20.0% 

Operating profit including exceptional items ($'000)

963,891 

806,791 

157,100 

% of revenue including exceptional items

 11.9% 

 10.4% 

 19.5% 

Operating  profit increased  by  $175.8  million,  or  20.0%,  to  $1,053.5  million  ($963.9  million  including  exceptional  items)  for 
the  year  ended  31  December  2023  from  $877.6  million  for  the  year  ended  31  December  2022  ($806.8  million  including 
exceptional items) . As a percentage of revenue, operating profit increased to 13.0% (11.9% including exceptional items) of 
revenues  for  the  year  ended  31  December  2023  compared  to  11.3%  of  revenues  for  the  year  ended  31  December  2022 
(10.4% including exceptional items). 

Financing income and expense

Financing income

31 December
2023

31 December
2022

$’000

5,014   

$’000

2,345   

Change

$’000

2,669 

Financing expense excluding exceptional items

(340,871)  

(234,201)  

106,670 

%

 113.8% 

 45.5% 

Financing expense for the period increased to $340.9 million for the year ended 31 December 2023 from $234.2 million for 
the  year  ended  31  December  2022  due  to  impact  of  rising  interest  rates  incurred  on  the  Group's  debt  facilities, 
notwithstanding  significant  repayments  of  the  Group's  loan  facilities  (see  note  23  -  Bank  credit  lines  and  loan  facilities). 
Financing income for the year increased to $5.0 million for the year ended 31 December 2023 from $2.3 million for the year 
ended 31 December 2022. 

Income tax expense

Income tax expense excluding exceptional items ($'000)

Income tax expense including exceptional items ($'000)

Effective income tax rate (%)

31 December
2023

31 December
2022

32,830 

18,627 

79,679 

65,514 

 3.0% 

 11.5% 

Change

(46,849) 

(46,887) 

 (58.8%) 

 (71.6%) 

Income tax expense for the period decreased to $18.6 million (including exceptional items) for the year ended 31 December 
2023  from  $65.5  million  for  the  year  ended  31  December  2022.  The  Group’s  effective  tax  rate  for  the  year  ended 
31 December 2023 was 3.0% (4.6% excluding the effect of exceptional items) compared with 11.5% (12.4% excluding the 
effect of exceptional items) for the year ended 31 December 2022; primarily due to the release of significant unrecognised 
tax benefits acquired in connection with the merger which was partially offset by a deferred tax provision on unrepatriated 
earnings. With the exception of the foregoing, the Group's effective tax rate remains principally a function of the distribution 
of pre-tax profits amongst the territories in which it operates. 

Risks and uncertainties

Under Irish Company Law (Section 327 the Companies Act), the Directors are required to give a description of the principal 
risks and uncertainties which it faced at 31 December 2023. Details of the principal risks and uncertainties facing the Group 
are set out in Appendix A of this annual report and form an integral part of the Directors’ Report. 

12 
 
 
 
 
 
 
 
 
 
 
 
 
 
Directors’ Report (continued)

Financial risk management

Group financial risk management is governed by policies and guidelines which are reviewed and approved annually by the 
Board of Directors. These policies and guidelines primarily cover foreign exchange risk, credit risk, liquidity risk and interest 
rate risk. The principal objective of these policies and guidelines is to ensure the minimisation of financial risk at reasonable 
cost. The Group’s financial instruments comprise cash and cash equivalents, current asset investments, lease obligations 
and negotiated debt facilities. The main purpose of these financial instruments is to fund the working capital requirements of 
the Group, the cost of new acquisitions and ensure continued growth. The Group also occasionally uses derivative financial 
instruments  to  reduce  exposure  to  fluctuations  in  foreign  exchange  rates.  The  principal  financial  risk  facing  the  Group  is 
foreign exchange risk and interest rate risk. Other financial risks include credit risk and liquidity risk. Further details are set 
out in note 26 to the Consolidated Financial Statements and note 10 to the Company Financial Statements. The Group does 
not undertake any trading activity in financial instruments nor does it enter into any leveraged derivative transactions. The 
Group treasury function centrally manages the Group’s funding and liquidity requirements.  

Financing

On  1  July  2021,  the  Company  completed  the  acquisition  of  PRA  Health  Sciences,  Inc.  ("PRA")  by  means  of  a  merger 
whereby Indigo Merger Sub, Inc., a Delaware corporation and subsidiary of ICON, merged with and into PRA, the parent of 
the PRA Health Sciences ("the Merger").  In conjunction with the completion of the Merger, on 1 July 2021, ICON entered 
into a credit agreement providing for a senior secured term loan facility of $5,515 million and a senior secured revolving loan 
facility in an initial aggregate principal amount of $300 million (the "Senior Secured Credit Facilities"). The Senior Secured 
Credit Facility and Senior Secured Notes were issued at a discount of $27.6 million. On 2 May 2023, the Company agreed 
with its lenders to increase the aggregate principal amount of the senior secured revolving loan facility from $300 million to 
$500 million. 

Principal  repayments,  comprising  mandatory  and  voluntary  repayments,  during  the  year  ended  31  December  2023  and 
31 December 2022 were as follows:

Principal repayments

31 December 2023

31 December 2022

Quarter 1

Quarter 2

Quarter 3

Quarter 4

Total

$’000

250,000

150,000

300,000

250,000

950,000

$’000

300,000

100,000

200,000

200,000

800,000

During the year ended 31 December 2023, the Company drew down $370.0 million (31 December 2022: $75.0 million) of 
the senior secured revolving loan facility and repaid $315.0 million (31 December 2022: $75.0 million ). As at 31 December 
2023, $55 million (31 December 2022: $nil) was drawn under the senior secured revolving loan facility in addition to $3.7 
million (31 December 2022: $4.5 million) in letters of credit given to landlords to guarantee lease arrangements.

In  addition  to  the  Senior  Secured  Credit  Facilities,  on  1  July  2021,  a  subsidiary  of  the  Company  issued  $500  million  in 
aggregate  principal  amount  of  2.875%  senior  secured  notes  due  2026  in  a  private  offering  (the  “Offering”).  The  Senior 
Secured Notes will mature on 15 July 2026. 

The Company has contractual liabilities for lease arrangements of $176.9 million which will be predominantly settled over 
the next five year period through cash payments.

Subsequent events

Details of subsequent events are set out in note 31 to the Consolidated Financial Statements.

13Directors’ Report (continued)

Directors

The  following  table  sets  forth  information  concerning  the  composition  of  the  Company’s  Board  committees  as  of 
31 December 2023:

Name

Ciaran Murray

Dr. Steve Cutler (1)(5)

Rónán Murphy (2)(3)(5)

Dr. John Climax

Joan Garahy (2)(4)

Eugene McCague (3)(4)

Julie O'Neill (3)(4)

Dr. Linda Grais (2)

Position

Chair and Director

Chief Executive Officer and Director

Lead Independent Director

Director

Director

Director

Director

Director

(1) Executive Officer of the Company. 
(2) Member of Compensation and Organisation Committee.
(3) Member of Audit Committee.
(4) Member of Nominating, Sustainability and Governance Committee.
(5) Member of Execution Committee. 

Details required by Companies Act, section 329, of Directors’ interests in the Group’s shares are set out in note 10 to the 
Consolidated Financial Statements.

Directors’ remuneration 

Details  of  the  Directors’  remuneration  and  interests  are  set  out  in  note  6  and  note  10  to  the  Consolidated  Financial 
Statements.

Directors’ power to purchase and allot company shares

Subject to the provisions of the Companies Act, the Company may purchase any of its own shares. Every contract for the 
purchase of shares, or under which the Company may become entitled or obliged to purchase shares in the Company shall 
be  authorised  by  a  special  resolution  of  the  Company.  The  Company  may  cancel  any  shares  so  purchased  or  may  hold 
them as treasury shares or re-issue them.

A  resolution  was  passed  at  the  Company’s  Annual  General  Meeting  (“AGM”)  on  22  July  2016,  which  authorised  the 
Directors to purchase (buyback) up to 10% of the outstanding shares in the Company. This resolution has been renewed 
annually thereafter. On 18 February 2022, the Company commenced a share buyback program which was fully complete 
at  31  March  2022.  Under  this  buyback  program,  420,530  ordinary  shares  were  redeemed  by  the  Company  for  total 
consideration of $100.0 million.

All ordinary shares that were redeemed under the buyback program were cancelled in accordance with the Constitution of 
the  Company  and  the  nominal  value  of  these  shares  transferred  to  other  undenominated  capital  as  required  under  Irish 
Company law.

Rights and Obligations attaching to the Company’s shares

The  authorised  share  capital  of  the  Company  is  €6,000,000  divided  into  100,000,000  ordinary  shares  of  €0.06  at 
31 December 2023. Holders of ordinary shares will be entitled to receive such dividends as may be recommended by the 
Board  of  Directors  of  the  Company  and  approved  by  the  shareholders  and/or  such  interim  dividends  as  the  Board  of 
Directors of the Company may decide. On liquidation or a winding up of the Company, all assets available for distribution will 
be paid out to the holders of the Company's ordinary shares. Holders of ordinary shares have no conversion or redemption 
rights.  On  a  show  of  hands,  every  holder  of  an  ordinary  share  present  in  person  or  proxy  at  a  general  meeting  of 
shareholders shall have one vote with no individual having more than one vote.

14Directors’ Report (continued)

Change of control 

A certain number of the Group’s customer contracts allow the customer to terminate the contract in the event of a change in 
control of the Company.

The  Senior  Secured  Credit  Facilities,  details  of  which  are  set  out  in  note  23  to  the  Consolidated  Financial  Statements, 
provides that, upon the occurrence of a change of control, the obligations thereunder may be accelerated.

Furthermore, certain Group companies have entered capital grant agreements with the Irish government agency, Enterprise 
Ireland,  whereby  the  Group  covenants  that  the  controlling  interest  in  the  Company  will  not  change  without  Enterprise 
Ireland’s prior written consent, which will not be unreasonably withheld.  

Additionally, the Company's share option and restricted share unit plans contain change in control provisions which provide 
for the acceleration of the vesting and exercisability of outstanding options and awards of restricted share units in the event 
that a change in control occurs with respect to the Company. 

Corporate Governance 

The Company is listed on the NASDAQ Global Select Market. The Company complies with the corporate governance listing 
requirements under the NASDAQ marketplace rules. 

NASDAQ  may  provide  exemptions  from  certain  NASDAQ  corporate  governance  standards  to  a  foreign  private  issuer  if, 
among  other  reasons  those  standards  are  contrary  to  a  law,  rule  or  regulation  of  a  public  authority  exercising  jurisdiction 
over  such  issuer  or  contrary  to  generally  accepted  business  practices  in  the  issuer’s  home  country  of  domicile,  provided, 
that, the foreign private issuer properly notifies NASDAQ and makes the required disclosure except to the extent that such 
exemptions would be contrary to United States federal securities laws.

The exemptions that the Company relies on, and the practices the Company adheres to, are as follows:

•

•

•

The Company is exempt from provisions set forth in NASDAQ Rule 5620(c), which requires each issuer (other than 
limited partnerships) to provide for a quorum in its by-laws for any meeting of the holders of common stock, which 
shall  in  no  case  be  less  than  33.33%  of  the  outstanding  shares  of  the  issuer’s  common  voting  stock.  The 
Company’s Constitution requires that only 3 members be present, in person or by proxy, at a shareholder meeting 
to constitute a quorum. This quorum requirement is in accordance with Irish law and generally accepted business 
practices in Ireland.

The Company is exempt from provisions set forth in NASDAQ Rule 5635(c) which requires (other than for certain 
specified exceptions) shareholder approval prior to the establishment or material amendment of a stock option or 
purchase  plan  or  other  equity  compensation  arrangement  made  or  materially  amended,  pursuant  to  which  stock 
may be acquired by officers, Directors, employees or consultants. Irish law does not require shareholder approval 
with  respect  to  equity  compensation  arrangements.  Accordingly,  the  2019  Consultants  and  Directors  Restricted 
Share  Unit  Plan,  the  2013  Employees  Restricted  Share  Unit  Plan  and  the  amendments  to  the  Employee  Share 
Option  Plan  2008  and  Consultants  Share  Option  Plan  2008  were  adopted  by  the  Board  of  Directors  without 
shareholder approval.

The  Company  is  exempt  from  provisions  set  forth  in  NASDAQ  Rule  5605(b)(2),  which  requires  independent 
Directors to hold regularly scheduled meetings at which only independent Directors are present. Irish law does not 
require  independent  Directors  to  hold  regularly  scheduled  meetings  at  which  only  independent  Directors  are 
present.  The  Company  holds  regularly  scheduled  meetings  which  all  of  the  Directors  may  attend  and  the  Lead 
Independent Director may call meetings of the independent Directors and non-employee Directors of the Board, as 
appropriate, in accordance with the Lead Independent Director Charter.

The Company's practices with regard to these requirements are not prohibited by Irish law.

15 
 
Directors’ Report (continued)

Audit Committee

The Audit Committee meets a minimum of four times a year. It reviews the quarterly and annual financial statements, the 
effectiveness  of  the  system  of  internal  control  and  recommends  the  appointment  and  removal  of  the  external  auditors.  It 
monitors the adequacy of internal accounting practices and addresses all issues raised and recommendations made by the 
external  auditors.    The  Audit  Committee  pre-approves  all  audit  and  non-audit  services  provided  to  the  Company  by  its 
external auditors on a quarterly basis. The Audit Committee, on a case by case basis, may approve additional services not 
covered by the quarterly pre-approval, as the need for such services arises. The Audit Committee reviews all services which 
are  provided  by  the  external  auditor  to  review  the  independence  and  objectivity  of  the  external  auditor,  taking  into 
consideration relevant professional and regulatory requirements. The Chief Financial Officer, the Head of Internal Audit, the 
Chief  Administrative  Officer  and  General  Counsel  and  the  external  auditors  normally  attend  all  meetings  of  the  Audit 
Committee and have direct access to the Committee Chairperson at all times. The Audit Committee Charter was updated in 
February  2024  to  include  specific  responsibilities  in  respect  to  the  oversight  and  monitoring  of  the  external  reporting  on 
environmental, social and governance (ESG) matters included in the financial statements and data quality related to such 
reporting in coordination with the Nominating, Sustainability and Governance Committee. The Audit Committee is currently 
comprised of three independent Directors: Rónán Murphy (Chairperson), Eugene McCague and Julie O'Neill. 

Significant shareholdings

The Company has been notified of the following shareholdings in excess of 3% of the issued share capital of the Company 
as at 31 December 2023: 

Name

WCM Investment Management

Massachusetts Financial Services Company

Wellington Management Company, LLP

Lazard Asset Management, L.L.C.

Boston Partners

Fidelity Management & Research Company LLC

Ninety One UK Limited

Capital Research Global Investors
All Directors and Officers as a group (1)

%

 8.3 

 6.7 

 4.2 

 3.4 

 3.2 

 3.2 

 3.1 

 3.1 

 1.2 

Number of Shares

6,869,881

5,532,676

3,427,415

2,761,425

2,671,730

2,645,041

2,593,526

2,553,673

987,551

(1)

Includes 319,729 ordinary shares issuable upon the exercise of stock options granted by the Company, 31,856 RSUs 
awarded by the Company to Directors, officers and other key employees and 86,936 PSUs awarded by the Company to 
Directors,  officers  and  other  key  employees.  Of  the  PSUs,  performance  conditions  determine  how  many  of  them  will 
vest and, if performance targets are exceeded, additional PSUs will be issued and vest in accordance with the terms of 
the relevant PSU award, the figure included is the maximum amount of PSUs that may be issued.

Further detailed breakdown of the Directors' interest is included in Note 10 Payroll and related benefits.

Subsidiary undertakings

The  information  required  by  the  Companies Act  in  relation  to  subsidiary  undertakings  is  presented  in  note  32  Subsidiary 
undertakings to the Consolidated Financial Statements.

Political donations

The Group made no disclosable political donations in the period.  

16Directors’ Report (continued)

Going concern

The  time  period  that  the  Directors  have  considered  in  evaluating  the  appropriateness  of  the  going  concern  basis  in 
preparing  the  2023  Consolidated  Financial  Statements  is  a  period  of  at  least  twelve  months  from  the  date  of  approval  of 
these financial statements (the "period of assessment").

The  Group  has  considerable  financial  resources  and  a  large  number  of  customers  across  different  geographic  areas. 
Having assessed the relevant business risks (see Appendix A) the Directors believe that the Group is well placed to manage 
these risks successfully and they have a reasonable expectation that ICON plc, and the Group as a whole, has adequate 
financial  and  other  resources  to  continue  in  operational  existence  for  the  period  of  assessment  with  no  material 
uncertainties. For this reason, the Group continues to adopt the going concern basis in preparing the consolidated financial 
statements.

Accounting records

The  Directors  are  responsible  for  ensuring  that  adequate  accounting  records  as  outlined  in  Section  281-285  of  the 
Companies Act, are kept by the Company. The Directors are also responsible for the preparation of the Annual Report. The 
Directors  have  appointed  professionally  qualified  accounting  personnel  with  appropriate  expertise  and  have  provided 
adequate resources to the finance function in order to ensure that those requirements are met. The accounting records of 
the  Company  are  maintained  at  the  Group’s  principal  executive  offices  at  its  registered  office  at  South  County  Business 
Park, Leopardstown, Dublin 18.  

Statement of relevant audit information

The Directors believe that they have taken all steps necessary to make themselves aware of any relevant audit information 
and have established that the Company's statutory auditors are aware of that information. In so far as they are aware, there 
is no relevant audit information of which the Company's statutory auditors are unaware.

Disclosure of non-financial information 

The  European  Union  (Disclosure  of  Non-Financial  and  Diversity  Information  by  certain  large  undertakings  and  groups) 
Regulations 2017 require disclosure of certain non-financial information by certain large undertakings and groups.  

We have sought to address the requirements of the legislation in the sections following.

Business Model

Our mission is to improve the lives of patients by accelerating the development of our customers’ drugs and devices through 
innovative solutions. We are passionate about providing innovative solutions for customers, we are better together working 
as one team, we value diversity and care about the success of our people, and we care about doing the right thing. We are 
advancing  clinical  research  while  offering  customers  broader  and  deeper  experience,  scale,  and  focus,  complemented  by 
continuity  of  delivery  and  speed  to  market.  Consistent  with  our  values,  we  seek  to  not  only  operate  in  compliance  with 
applicable laws but also to positively influence our global workforce, the communities that we operate in, the environment 
and society as a whole. Doing so makes us a stronger, more resilient organisation by every measure.

Our  business  model  is  described  in  the  "Principal  activities,  business  review  and  future  developments"  section  of  the 
Directors’ Report.

Our core values underpin our mission and drive a culture and mind-set of ownership at ICON. "Own it at ICON", as set out 
below, is a statement of values that has remained at the very heart of ICON’s culture, encouraging our people to seize the 
opportunity  and  bring  flexibility,  innovation,  and  determination  to  every  situation.  We  believe  our  culture  of  ownership 
personifies who we are as a company — it also helps us apply our expertise, collaborate to get things done, and succeed at 
our mission.       

17Directors’ Report (continued)

Our  values  underpin  how  we  work  together  to  deliver  on  our  mission  to  improve  the  lives  of  patients  by  accelerating  the 
development  of  our  customers’  drugs  and  devices  through  innovative  solutions.  These  values  and  our  Code  of  Ethical 
Conduct,  which  underpins  these  values,  form  the  core  of  what  we  do,  and  how  we  do  it.  It  applies  to  all  of  our  officers, 
directors,  employees,  consultants  and  agents  globally. All  employees  and  temporary  workers  are  mandated  to  complete 
annual global ethics training.

At ICON, we care about conducting business sustainably. We care about our people, patients, and the communities in which 
we  live.  We  care  about  doing  the  right  thing  and  we  are  committed  to  working  to  the  highest  ethical  standards  and 
demonstrating our commitment to honesty, transparency, and quality. As a testament to our commitment, we launched our 
“ICON Cares” program at the start of 2023 which incorporates all our Environment, Social and Governance (ESG), Diversity, 
Inclusion  and  Belonging  (DIB),  and  CSR  initiatives  into  one  program.  ICON’s  Environment,  Social,  and  Governance 
Committee  ('ESG  Committee')  brings  together  all  these  initiatives  and  efforts  under  one  umbrella  to  ensure  consistency, 
enhance monitoring, reveal areas for development and facilitate reporting to the Board. The ESG Committee is chaired by 
the  Chief  Administrative  Officer  and  General  Counsel  (CAO),  who  is  responsible  for  reporting  to  the  ICON  executive 
leadership  team,  the  Nominating,  Sustainability  and  Governance  Committee  and  the  Board  on  ESG  matters.  The  CAO 
reports on ESG matters to the Nominating, Sustainability and Governance Committee quarterly and reports to the Board at 
least annually whilst also providing periodic ESG updates to the executive leadership team.

The ESG Committee is focused on developing our strategy and initiatives relating to the environment, social matters, health 
and  safety,  community  engagement,  corporate  governance,  sustainability,  and  other  public  policy  matters  relevant  to  the 
Company. The ESG Committee is a cross-functional management committee of the Company including representation from 
facilities,  health  and  safety,  corporate  communications,  finance,  legal,  investor  relations,  procurement,  commercial, 
marketing,  and  human  resources  departments.  The  Committee  meets  regularly  to  assist  and  support  executive 
management and the Nominating, Sustainability and Governance Committee of the Company in:

•
•
•

determining and setting the strategy relating to ESG matters;

developing, implementing and monitoring initiatives and policies based on that strategy; and

communicating these strategies, initiatives, and their results.

We are committed to building and developing our ESG strategies and reporting. In 2020 we launched our ESG page on the 
ICON website and have an internal ICON Cares ESG page on our MyICON intranet portal to engage with our employees 
and provide information and updates relating to ESG matters and our commitment to sustainability. In 2021, as a testament 
to our commitment to managing ICON responsibly and sustainably, we became a participant in the United Nations Global 
Compact (UNGC), a set of Ten Principles covering the areas of human rights, labor, environment, and anti-corruption. In our 

18Directors’ Report (continued)

2022 ESG report, released in 2023, we reported under the Global Reporting Initiative (GRI, 2021) standards, the Task Force 
on  Climate-Related  Financial  Disclosures  (TCFD)  and  the  Sustainability Accounting  Standards  Board  (SASB)  index.  Our 
report  summarises  our  current  policies,  priorities,  commitments,  achievements,  and  progress  in  respect  to  ESG  matters. 
ICON  received  a  gold  medal  from  EcoVadis  for  our  2023  submission  in  recognition  of  our  environment,  social  and 
governance efforts throughout ICON. The ESG page on our website is available at https://www.iconplc.com/about/esg/.

The  global  landscape  in  respect  to  regulatory  and  legislative  requirements  relating  to  ESG  reporting  and  disclosure 
requirements is rapidly evolving, and we are monitoring potential requirements so that we are positioned to adhere to any 
additional  requirements  in  due  course.  This  includes  mandatory  reporting  under  the  Corporate  Sustainability  Reporting 
Disclosure (CSRD) from the EU and the SEC Climate Risk Disclosure Rule which is pending finalisation. 

Building a sustainable future – our commitment to the United Nations Sustainable Development Goals

As  a  global  company,  we  maintain  an  ethical  and  sustainable  presence  in  hundreds  of  locations  worldwide.  At  its  core, 
ICON’s  mission  is  to  improve  health  and  lives.  We  are  also  committed  to  contributing  to  the  2030  United  Nations 
Sustainable Development Goals (SDGs) and are proud that our work contributes to their advancement.

Our  research,  our  work  with  customers  and  patients  and  our  on-the-ground  efforts  to  meet  the  diverse  needs  across  our 
communities  align  with  the  SDGs.  We  focus  these  efforts  on  a  subset  of  themes  where  we  have  identified  the  greatest 
opportunity to effect change:

•
•
•
•
•
•
•

SDG 3 – Good health and well-being

SDG 5 – Gender equality 

SDG 9 – Industry, innovation and infrastructure

SDG 10 – Reduced inequalities

SDG 12 – Responsible consumption and production

SDG 13 – Climate action 

SDG 17 – Partnerships for the goals

Further details on the ways ICON contributes to these SDGs and their targets are set out in our ESG Report.

Environmental Matters: Conducting business sustainably

ICON  is  committed  to  delivering  excellence  in  care  to  our  communities.  To  improve  our  overall  sustainability,  this 
commitment means tracking and improving our environmental performance across all business activities. We achieve this 
by pursuing sustainability strategies that recognise the impact of our operations as a CRO on the environment, addressing 
greenhouse  gas  (GHG)  emissions,  energy  use,  waste  generation  and  procurement-related  activities.  Our  employees, 
directors, officers, contractors, and temporary workers are expected to support our sustainability objectives.  

Our Global Environmental Management Policy and Environmental Management Plan is part of our ICON Cares program for 
managing  environmental  sustainability  initiatives. The  implementation  of  the  plan  is  led  by  our  facilities  team,  reporting  to 
our  Chief  Administrative  Officer  and  General  Counsel  (CAO).  The  CAO  is  responsible  for  reporting  on  the  ICON  Cares 
program and environmental initiatives and progress to the ICON executive leadership team and Nominating, Sustainability 
and Governance Committee and the Board.

ICON  set  environmental  goals  around  the  use  of  renewable  energy  and  carbon  emissions  in  2019  and  we  are  working 
towards achieving these goals which are as follows: 
100% renewable electricity by 2025

•
•
•

20% reduction in kilowatt hours (kWh) of electricity by 2030

Net zero carbon emissions on Scope 1 & 2 by 2030

In April 2023, following Board approval, ICON made a commitment to the Science Based Targets initiative (SBTi), when we 
submitted  our  near-term  commitment  letter  to  the  SBTi.  In  February  2024,  the  Board  approved  furthering  our  SBTi 
commitment  to  include  a  long-term  company-wide  emissions  reduction  target  in  line  with  science-based  net-zero. 
Accordingly, we have submitted our commitment letter to SBTi to set net-zero targets, including a long-term science-based 
target and are preparing to submit both our near-term and long-term science-based targets for validation.

We  have  programs  in  place  to  manage  and  minimise  climate  impacts  of  business  activities.  To  continue  to  improve 
processes  and  reduce  our  environmental  impact,  we  track,  calculate,  and  report  our  Scope  1,  Scope  2  and  Scope  3 
business travel GHG footprint. We apply the GHG Protocol Corporate Standard, which is the global corporate accounting 
and  reporting  standard  for  calculating  carbon  emissions.  Carbon  Trust  provides  annual  verification  of  our  Scope  1  and  2 

19Directors’ Report (continued)

GHG emissions data. In 2023, we worked with Carbon Trust to conduct a full Scope 3 footprint, which we are analysing with 
a view to annual public reporting in due course.

Aligned with our goal to be net-zero on Scopes 1 and 2 by 2030, ICON’s combined Scope 1 and 2 GHG emissions have 
decreased  since  2018.  We  recognize  that  although  the  combined  Scopes  1  and  2  emissions  have  fallen  year-on-year, 
ICON’s Scope 1 emissions have increased slightly each year. To reach our net-zero goal, our decarbonization strategy is 
currently focused on reducing Scope 2 emissions, the largest contributor to our Scope 1 and 2 footprint. Following on from 
our Scope 2 emissions reduction efforts, we plan to launch efforts that target our Scope 1 emissions in the coming years.

In  2020,  following  pandemic-related  closures  and  a  reduction  in  business  travel,  our  Scope  3  GHG  emissions  declined 
significantly. Since 2021, as more normal operations resumed, we have seen an overall increase in our total GHG emissions 
driven by an increase in business travel (Scope 3).

Although  Scope  1  and  3  emissions  have  increased,  we  remain  below  our  2018  pre-COVID  overall  emissions,  and  are 
committed  to  continue  our  work  towards  reducing  emissions.  Additionally,  our  emissions  intensity  has  decreased 
substantially  as  our  business  has  grown.  Since  2018,  our  emissions  intensity  per  million  in  revenue  and  our  emissions 
intensity per FTE employee has decreased.

Moving forward, ICON expects to see further emission reductions relative to revenue and the number of employees due to a 
reduction in offices, strategic energy efficiency projects and a flexible work policy that allows eligible employees to work from 
home 40% of the time.

ICON  participates  in  CDP  (formerly  the  Carbon  Disclosure  Project)  on  an  annual  basis.  CDP  is  a  globally  recognised 
organisation that allows companies to measure and manage their environmental impacts. We received a B score from CDP 
for 2023 on our 2022 Climate Change response which was an improvement on the C score that we received from CDP in 
2022 on our 2021 Climate Change response.  The improved score is a reflection of our efforts and the progress that we are 
making in respect to environmental sustainability. Our CDP responses are available at https://www.cdp.net/en/.

We  are  focused  on  reducing  energy  use  and  increasing  renewable  energy  use  across  our  global  operations  as  specific 
environmental  goals.  Waste  reduction  is  embedded  into  our  environmental  policies  and  practices  and  is  one  of  the 
objectives of ICON’s Environmental Management Policy. 

ICON  leases  most  of  our  offices  and  facilities,  and  therefore  we  work  closely  with  our  landlords  and  leasing  agents  to 
implement measures to ensure we operate in an environmentally sustainable manner. Throughout 2023, we continued real 
estate  harmonisation  efforts  which  resulted  in  downsizing  or  closing  19  locations  to  align  with  new  working  styles  and 
business  needs,  this  also  helps  to  reduce  our  environmental  footprint.  Experts  from  our  real  estate  team  factor 
environmental considerations into decisions around new office locations or building improvements. We’ve also implemented 
a  series  of  measures  globally  to  reduce  the  local  footprint  of  our  offices  while  promoting  comfort  and  efficiency.  These 
include:
•
•
•
•
•
•
•

Reducing paper consumption by promoting paperless office processes and defaulting double-sided output.

Selecting building materials and vendors for their low environmental impact.

Building recycling areas into business centers and kitchens/canteens. 

Planting green spaces to improve internal air quality.

Installing energy-efficient LED lighting.

Purchasing recycled office supplies. 

Using motion detectors.

We  require  our  suppliers  to  abide  by  our  Global  Supplier  Code  of  Conduct  which  includes  a  commitment  to  comply  with 
applicable  environmental  laws  and  regulations,  our  expectations  around  waste  management  and  sustainable  use  of 
resources.  

We care about making a positive impact on the communities in which we work and live and we have aligned our community 
efforts  to  a  broader  vision  for  social  impact,  including  by  aligning  priorities  with  our  organisational  goals  of  diversity, 
inclusion, and belonging.

For further details on risks relating to environmental, social and governance matters refer to Appendix A: Risk Factors.

20Directors’ Report (continued)

Social and Employee matters

Community Engagement

Our community engagement activities are focused on two core areas:

•
•

Supporting education and building closer ties between industry and academia; and

Improving the welfare of people in the communities in which we live.

Supporting education and building closer ties between industry and academia 

A core area of community support includes building ties between industry and academia to inspire the next generation of 
leaders in business and science. Our existing partnerships continue with the following organisations:

•

•

•

The ICON-McKeon Research Fellowship in Motor Neuron Disease ('MND') in honor of Mr. Declan McKeon, former 
Board member, acting Chairman, Lead Independent Director and Chair of the ICON Audit committee. The ICON-
McKeon Research Fellow in MND carries out research in the areas of machine-learning and artificial intelligence to 
derive  insights  from  multimodal  clinical,  imaging  neuro-electric  signaling,  in  the  context  of  the  neurodegenerative 
disease of ALS. 

Partnership with Trinity Centre for People with Intellectual Disabilities ('TCPID') - TCPID situated within the School 
of  Education,  Trinity  College  Dublin,  aims  to  promote  the  inclusion  of  people  with  intellectual  disabilities  in 
education  and  society.  The  Centre  provides  people  who  have  intellectual  disabilities  with  the  opportunity  to 
participate  in  a  higher  education  program  designed  to  enhance  their  capacity  to  fully  participate  in  society  as 
independent adults. The 2-year education program includes work placements and internships to enable students to 
experience and participate in the work environment. In 2023, we were delighted to host a student visit from TCPID 
students to our global headquarters in Dublin, where they enjoyed learning about the different phases of a clinical 
trial and also experienced a working laboratory during a tour of the facility. 

Partnership  with  Junior Achievement  to  inspire  schoolchildren.  Junior Achievement  encourages  young  people  to 
remain in education and teaches them the skills they need to succeed in a changing world. ICON volunteers take 
time  out  of  their  working  day  to  deliver  Junior  Achievement  programs,  teaching  primary  and  secondary-level 
students valuable business, STEM (Science, Technology, Engineering & Mathematics) and entrepreneurship skills 
that will serve them throughout their professional lives. 

Aligned  with  our  ambitions  to  build  closer  ties  between  industry  and  academia,  create  a  more  diverse  graduate  pool  of 
talented  and  ambitious  STEM  professionals  who  can  help  to  ensure  the  future  success  of  the  life  sciences  industry,  and 
provide  increased  opportunities  for  underrepresented  groups  to  study  STEM  courses,  our  STEM  scholarship  program 
continued in 2023. Through the program, ICON is partnering with three universities in Ireland – Dublin City University (DCU), 
Trinity  College  Dublin  (TCD)  and  the  University  of  Limerick  (UL)  –  as  well  as  with  the  Thurgood  Marshall  College  Fund 
(TMCF) in the US, to fund 33 scholarships for students of STEM courses. TMCF is a not-for-profit organisation that supports 
nearly  300,000  students  attending  its  47  member-schools  that  include  publicly-supported  Historically  Black  Colleges  and 
Universities (HBCUs). 

Improving the welfare of people in the communities in which we live

Through  volunteering,  donations  and  other  charitable  initiatives,  our  employees  across  the  world  are  making  a  positive 
difference  to  their  communities.  We  support  causes  that  are  important  to  our  employees  and  have  several  programs  that 
support  the  welfare  of  people  in  our  local  communities.  In  November  2023,  360  ICON  colleagues  from  across  the  globe 
united in person and virtually to take part in Run in the Dark for the fourth conservative year. Team ICON raised $10,000 to 
support  Mark  Pollock's  Collaborative  Cures  foundation  whose  mission  is  to  bring  people  together  to  cure  paralysis  in  our 
lifetime. A team of 125 ICON cyclists from 24 countries also participated in our annual ICON cycle challenge, which covered 
350km from Zurich to Munich, across 3 days and which raised funds for Mission Rabies, a global charity that aims to control 
the spread of rabies through vaccination of dogs in endemic areas.

Since  2012,  ICON’s  annual  employee-nominated  charity  donation  program  has  supported  over  100  charities  worldwide, 
donating $10,000 to each organisation. The selected organisations focus on a range of critical issues, such as building a 
more  inclusive  society,  improving  child  welfare  and  supporting  patients  who  are  battling  chronic  diseases.  The  chosen 
charities align with ICON’s corporate mission, our ICON Cares program diversity and inclusion goals and support our efforts 
to advance the United Nations Sustainable Development Goals (SDGs).  In addition, ICON donated to UNICEF in support of 
humanitarian efforts following the devastating earthquakes in Syria and Turkey. 

21Directors’ Report (continued)

Talent and People 

Our people are core to our ability to deliver our services and drive better patient outcomes. Through diversity, inclusion and 
belonging, industry-leading talent management practices, a sincere attention to our employees’ needs, well-being and health 
and safety, we continue to power the potential of together. 

At the core of our strategy is our people 

People  have  long  been  central  to  our  mission  to  improve  the  lives  of  patients  by  accelerating  the  development  of  our 
customers’  drugs  and  devices  through  innovative  solutions.  We  encourage  our  people  to  bring  flexibility,  innovation,  and 
determination  to  every  situation.  By  doing  so,  our  people  can  build  exciting  and  rewarding  careers,  and  deliver  results  to 
bring life-changing medicines to market and to maintain our success as an industry leader.

Learning and development of our staff is a key focus for us

Our leadership and talent programs contribute to the enhanced retention of our employees, better project deliverables for 
our customers and the enhanced financial performance of the business.

We aim to be an industry leader where talented people come to do important work and where our employees can shape the 
future of healthcare, grow their careers, and reach their full potential. We have long held a deep commitment to cultivating 
strong  people  practices. This  includes  competitive  total  rewards  packages  along  with  a  focus  on  continuous  learning.  We 
nurture  a  culture  of  development  and  aim  to  boost  engagement  by  supporting  our  people’s  growth,  both  personally  and 
professionally. We are dedicated to finding opportunities for our employees to grow and develop.

Our success depends on the knowledge, capabilities, and quality of our people. To improve their skills, we are committed to 
providing continuous learning. This commitment is underpinned by clearly defined competencies, which offer employees a 
clear path along which to develop skills and advance their careers. 

To support employees at every stage of their career journeys, training and development programs are aimed at advancing 
scientific,  technical,  and  business  knowledge  as  well  as  behavioural  competencies.  Programs  include  Corporate  and 
Functional  Onboarding for all ICON employees tailored  CRA academies; Data Management and Biostats & Programming 
Academies;  a  Commercial  Skills Academy;  a  range  of  project  management  curricula,  therapeutic-focused  programs,  and 
People Leader development programs. 

Our  People  Leader  development  program  focuses  on  providing  our  People  Leaders  with  the  relevant  skills  to  effectively 
manage  themselves,  their  team  and  their  business,  including  leveraging  psychometrics  to  raise  awareness  of  their 
behavioural  preferences  and  the  preference  of  others.  ICON  also  invests  in  Harvard  Manage  Mentor,  an  online  learning 
platform  providing  People  Leaders  with  access  to  learning  available  at  any  time  with  topics  ranging  from  change 
management, diversity & inclusion, retaining employees and developing employees.

We provide our people with a personalised and flexible learning experience, delivered through a combination of in-person 
and  technology-driven  programs  that  suit  their  learning  styles  and  can  flex  to  suit  their  schedules.  Through  our  industry 
leading  Career  Hub,  ICON  employees  are  encouraged  to  broaden  their  scientific,  technical,  leadership,  and  business 
knowledge. By tapping into development programs and partnerships with leading academic institutions, team members can 
use the hub to develop competencies that advance their careers. We also collaborate with UCD Smurfit School Executive 
Development to deliver customised leadership development programs for global employees.

As an organisation we are keen to hear directly from our employees

To attract and retain the best talent, we must listen and respond to employees’ needs. This begins with a focus on diversity, 
inclusion  and  belonging,  and  extends  to  every  aspect  of  our  work,  from  recruitment  and  onboarding,  to  training, 
engagement, enablement, and reward. We pursue  best-in-class approaches to building employee engagement and  these 
include, among others:

•

•

•
•

Comprehensive global employee surveys, which measure how people feel about their work and whether they feel 
they have the tools to do their jobs well. Feedback from these studies informs detailed action plans at the group, 
function, and team level.
Pulse check surveys, which are smaller-scale studies designed to measure employee sentiment on specific topics 
and initiatives.
Fostering an environment of diversity, inclusion and belonging where everyone is valued.
Stay  interviews  to  help  managers  understand  why  staff  stay  and  to  uncover  what  might  put  them  at  risk  of 
departing.

22Directors’ Report (continued)

•

Skip-level meetings to develop trust and rapport between senior leaders and employees.

Our  listening  strategy  supports  our  efforts  to  reduce  employee  turnover,  which  we  monitor  closely  through  analytics. 
Qualitative  information  is  collected  through  formal  exit  interviews  and,  where  we  believe  they’ll  make  an  impact,  we 
intervene via retention plans and related efforts.

Employee well-being 

ICON’s commitment to improving health and enriching lives extends beyond the work we do with our customers. Employees 
worldwide have access to tools and resources designed to support all facets of their well-being, from physical to financial to 
psychological and beyond.

Our global Employee Assistance Program (EAP) ensures that all employees, and their families, have access to a range of 
different, confidential resources and experts to help them better manage their working life and personal life. Employees can 
also access a wide range of tools, information and support services online in local languages.

Health and safety

At ICON, the health and safety of our employees, customers and clinical trial patients are our most important priorities. We 
take guidance from global and regional health authorities and governments to protect the safety and welfare of employees, 
as well as abide by government directives. Our global health and safety management system ensures we deliver on all local 
and  national  requirements.  Our  priority  objectives  are  the  safety  of  our  staff,  clinical  trial  patients,  protecting  the 
environment, maintaining business continuity, and ensuring all sensitive health and safety data is protected.

We  are  committed  to  providing  a  safe  working  environment  for  our  people.  We  achieve  this  goal  by  working  in  ways  that 
protect the safety, health, and welfare of all our employees, clinical trial patients, and visitors. Risk assessment is the basis 
of  the  safety  management  system,  and  we  work  to  identify,  mitigate,  and  monitor  existing  and  emerging  health  or 
environment risks that may be associated with our business activities. 

Fostering diversity, inclusion and belonging

We  are  committed  to  being  a  workplace  where  all  employees  are  included  and  feel  a  sense  of  belonging.  As  a  global, 
values-driven  organisation,  we  acknowledge  and  celebrate  our  differences  in  gender,  ethnicity,  culture  and  abilities. 
Respecting  diverse  viewpoints  and  experiences  is  foundational  to  our  interactions  with  each  other  and  with  our  patients, 
customers and suppliers. Moreover, we strive to build teams that reflect the various geographies and communities in which 
we live and work and the patients we serve.

We  recognise  the  critical  importance  of  diversity  in  clinical  trials  ensuring  all  types  of  patients  who  will  eventually  receive 
therapies are represented on clinical trials, as well as offering clinical trials as a care option for those who may not otherwise 
have access to medical treatment. In furtherance of our aim to increase diversity within clinical trials, we appointed a Global 
Head  of  Diversity  in  Clinical  Trials  to  lead  a  team  of  cross  functional  experts  who  can  advise  customers  how  to  build 
diversity at every stage of the clinical trial.

Diversity, inclusion, and belonging (DIB) are fundamental to our culture and values. Diversity makes us more innovative and 
more creative. ICON’s approach to DIB is a key focus area. To reflect this, inclusion is one of our core values and our DIB 
strategy revolves around four key ambitions: our people, our patients, our customers, and our communities. 

23Directors’ Report (continued)

For  each  of  these  ambitions,  ICON’s  DIB  Operating  Committee  brings  together  individuals  from  across  the  company  to 
create  and  execute  work  streams  that  are  committed  to  advancing  our  DIB  strategy.  A  central  team  manages  the 
overarching efforts, ensuring alignment and collaboration across each of the ambitions. Each ambition has a sponsor from 
ICON’s executive leadership team who advocates for and supports the agenda, in addition to providing leadership. 

The growth of community groups enabled ICON to retire the role of the DIB advocates who were recruited from across the 
organisation to support leadership and the DIB Operating Committee with DIB strategy and activities. Now, all community 
group members and allies act as advocates across the company. Their aim: to align activities, promote events and share 
information back to their service lines. It is our aspiration that all our employees will act as DIB advocates.

We  believe  in  a  workplace  culture  that  embraces  diverse  perspectives  and  empowers  our  team  members  to  grow  —  at 
work, at home and in their communities. The key areas of focus for our diversity, inclusion, and belonging agenda include 
talent management, country-level inclusion policies, rewards, training, mentoring and communications.

24Directors’ Report (continued)

The DIB community groups we have at ICON are:

DAWN: The  Disability  Awareness  Network  is  a  community  group  focused  on  developing 
and  fostering  a  mind-set  towards  creating  an  inclusive  workplace  and  working 
environment  where  everyone 
treated  equally  with  respect  and  dignity, 
irrespective of any visible or hidden disabilities.

is 

EmbRACE: EmbRACE  is  a  community  group  supporting  all  race  and  ethnic  backgrounds  in 
creating  an  inclusive  workplace  culture.  Our  ambition  is  to  build  a  culture  that  is 
inclusive,  collaborative  and  accountable,  supporting  all  our  people  and  removing 
barriers that prevent them from doing their best work and being their true selves at 
ICON.

NOW@ICON: The  Networking  Organization  for  Women  at  ICON  is  committed  to  inspiring  and 
connecting  current  and  potential  leaders  through  an  inclusive  environment  of 
targeted initiatives and supportive mentorship.

Pride@ICON: The Pride group supports LGBTQ+ colleagues and allies, ensuring that no matter 
where  employees  are  in  the  world,  our  offices  are  a  safe  space  where  they  are 
welcomed, respected, and valued.

SPACE: SPACE is a Community Group that Supports Parents And Carers Everywhere. We 
aim to create awareness and education, with a view to building an effective SPACE 
community  that  provides  individual,  group  and  regional  support  connections  for 
parents and carers.

In  2023  each  community  group  launched  a  mentoring  program  to  support  networking  and  career  development  at  ICON.  
This was a huge success with over 300 mentor and mentee matches across the five community groups with mentors and 
mentees receiving training and toolkits to make the most of their mentoring relationship. 

As a testament to our commitment to diversity, ICON are aiming for gender parity at the VP level and above by 2025. As at 
31  January  2024,  women  represent  46%  of  the  positions  at  the  VP  level  and  above.  Our  strong  focus  on  talent 
management, succession planning and talent development ensures we work towards building strong talent pipelines for VP 
level roles with equal number of female and male candidates shortlisted for all our senior roles.

Establishing  a  truly  inclusive  workplace  requires  offering  fair  pay.  Using  best-in-class  methodology,  we  regularly  review 
salary  ranges  to  establish  fair  pay  among  employees  regardless  of  gender,  race  or  ethnicity.  We  also  consider  legitimate 
business factors that explain differences, such as performance, tenure and experience. ICON has made and will continue to 
make  significant  investments  in  organisational  design  structures,  tools  and  education  that  uphold  and  support  our  pay 
principles.

We are committed to ensuring fair employment practices. For every jurisdiction in which we operate, we act in compliance 
with relevant laws relating to labour rights and labour relations as well as market competitive benefits. We believe in fair and 
equal  treatment  for  all  our  people,  without  regard  to  gender,  race,  ethnicity,  sexual  orientation,  marital  status,  physical  or 
mental  disability,  age,  pregnancy,  veteran  status,  nationality,  religion,  or  any  other  legally  protected  status.  We  do  not 
tolerate our employees being subjected to physical, sexual, racial, psychological, verbal, or any other form of harassment. 
We  encourage  our  employees  to  report  any  issues  of  harassment  or  discrimination.  We  prohibit  retaliation  against  any 
employee who rejects, protests, or complains about unlawful discrimination or harassment. 

For further details on risks relating to employee matters refer to Appendix A: Risk Factors.

25Directors’ Report (continued)

Human rights

ICON is committed to human rights and in 2021, ICON became a participant in the UN Global Compact (UNGC), signalling 
our commitment to uphold the UNGC’s 10 Principles, including those related to human rights across our global operations. 
Our business model and our policies, including our Global Code of Ethical Conduct and Global Supplier Code of Conduct, 
are intended to fully comply with applicable human rights legislation in the countries where we operate. Our zero-tolerance 
policy on forced labour, slavery, and human trafficking is defined clearly in these policies, which are available to employees, 
suppliers, customers, and the public.

We are opposed to forced labour, slavery, and human trafficking. We will not knowingly support or conduct business with 
any  organisation  involved  in  such  activities.  We  do  not  employ  anyone  below  the  minimum  employment  age  in  the 
jurisdictions in which we operate.

Our  Global  Supplier  Code  of  Conduct  incorporates  the  Pharmaceutical  Supply  Chain  Initiative  (PSCI)  principles  for 
responsible  supply  chain  management,  including  for  labour.  Before  doing  business  with  ICON,  suppliers  must  certify  that 
they  will  comply  with  the  ICON  Global  Supplier  Code  of  Conduct  or  their  own  materially  equivalent  internal  code,  which 
includes  human  rights  protections.  We  perform  pre-engagement  due  diligence  on  our  suppliers,  including  in  relation  to 
labour  issues,  which  we  support  through  periodic  re-screening.  We  hold  our  suppliers  accountable  for  meeting  their 
contractual obligations. Contract non-compliance can result in termination of the business relationship with the supplier and 
exclusion from future business.

For further details on risks relating to environmental, social and governance matters refer to Appendix A: Risk Factors.

Ethics and Compliance

ICON’s commitment to ethics and integrity is embedded in our company values. We act with integrity and integrate ethical 
principles into our business practices and culture. ICON’s Global Code of Ethical Conduct (the Code) establishes our core 
principles  and  standards  for  honest,  fair,  and  ethical  behaviour.  This  Code  addresses  the  core  values  expected  of  our 
people  in  our  internal  interactions  with  each  other  as  well  as  in  external  dealings  with  patients,  customers,  healthcare 
professionals, regulators, investors, vendors and other third parties.

Our Ethics and Compliance program is designed to protect the interests of the company and its shareholders by preventing, 
detecting, investigating and responding to potential misconduct and violations. 

The  Ethics  &  Compliance  team  (E&C)  provides  day-to-day  independent  oversight  for  the  program.  The  team  works 
collaboratively with risk and compliance functions and leadership across the business to align on and optimise its reach and 
impact.  The  Head  of  E&C  provides  day-to-day  independent  oversight  for  the  program.  The  team  is  independent  of  the 
business and reports to the Deputy General Counsel, who reports to the Chief Administrative Officer and General Counsel 
(CAO).  The  CAO  reports  on  the  program  to  ICON’s  executive  leadership  team,  the  Nominating,  Sustainability  and 
Governance  Committee  and  the  Board.  The  program  supports  all  functional  areas  globally  and  is  dedicated  to  the 
implementation of standardised global policies, procedures, training, guidance, communications, monitoring, investigations, 
issue  management,  assessing  compliance-related  risk  and  mitigations,  and  reporting  to  ensure  the  overall  compliance 
program is effectively functioning. Where appropriate, the program also implements regional and/or country specific policies, 
procedure, training and guidance.

ICON has incorporated a third-party system, Ethics Line, for employees and third parties to confidentially report ethics and 
compliance questions, as well as concerns, and to track reports through follow-up and resolution. An independent company 
administers this hotline, which is available all hours of every day and can accommodate calls in over 75 languages. These 
tools  also  provide  visibility  into  our  risks  while  highlighting  opportunities  to  address  them.  ICON’s  Ethics  and  Compliance 
program will continue to grow and evolve in response to changes in our business and in the global business climate.

All personnel are required to receive ethics and compliance training during initial onboarding and through annual refresher 
sessions. Training modules explain the many channels available for reporting suspected unethical or illegal practices. The 
training  supports  our  values  and  our  ways  of  working  and  incorporates  the  key  principles  of  our  policies  and  codes  and 
includes interactive scenarios where applicable.

At ICON, we promote a Speak Up culture that encourages compliance, openness, and accountability without retaliation. The 
Speak  Up  Policy  aims  to  support  our  culture  and  values  and  seeks  to  encourage  the  prompt  reporting  or  surfacing  of 
concerns or violations about values, ethics or other standards without fear of retaliation. Reported ethics concerns and other 
ethics and compliance-related data are reported via the CAO to the Board as appropriate.

For further details on risks relating to ethics and compliance refer to Appendix A: Risk Factors.

26Directors’ Report (continued)

Anti-bribery and Corruption

ICON is guided by the foundational principle that we do not tolerate bribery or any other form of corruption or fraud. Our anti-
bribery and anti-corruption (ABAC) program is a core element of our Ethics and Compliance program. ICON and all ICON 
directors,  employees,  consultants,  agents  and  all  third  parties  acting  on  ICON's  behalf  must  act  in  compliance  with 
international  laws  and  regulations  relating  to  bribery,  corruption,  and  illicit  payments,  including  the  US  Foreign  Corrupt 
Practices Act and the UK Bribery Act 2010.

ICON  maintains  the  ISO  37001:2016  certification  for  our  Anti-Bribery  Management  System,  which  establishes  the 
framework  for  the  controls  that  prevent,  detect  and  mitigate  the  risk  of  bribery.  Our  program  is  designed  to  ensure  our 
compliance with anti-corruption laws, including due diligence, training, policies, procedures, and internal controls.

Bribery  and  corruption  remain  a  business  risk  as  we  conduct  our  business  across  the  globe  and  enter  partnerships  and 
collaborations. There is no certainty that all employees and third-party business partners (including our vendors, suppliers, 
agents,  contractors,  and  other  partners)  will  comply  with  anti-bribery  laws.  When  working  with  third  parties,  we  are 
committed to working with only those who embrace high standards of ethical behaviour consistent with our own. Bribery and 
corruption  risks  are  a  focus  of  our  third-party  diligence  and  management  process.  We  hold  our  suppliers  accountable  for 
meeting  their  contractual  obligations  with  ICON,  including  commitments  that  are  made  with  regard  to  our  Global  Supplier 
Code of Conduct and regulatory compliance. Contract non-compliance can result in termination of the business relationship 
with the supplier and exclusion from future business with ICON. 

ICON's  internal  audit  teams  conduct ABAC  program  audits.  Internal Audit  focuses  on  testing  for  compliance  and  design 
effectiveness of the overall ABAC program. Internal Audit incorporates an assessment of ABAC measures in all audits, as 
appropriate. In this approach, bribery and corruption risks are incorporated into the risk assessment and scoping process of 
each audit. 

For further details on risks relating to Anti-bribery and Corruption refer to Appendix A.

Privacy and Information Security 

Data privacy and information security are fundamental to our business and key to retaining customers, building investors’ 
trust, protecting patients, and complying with global and regional regulations. We recognise and respect that our customers, 
employees,  patients,  and  all  those  who  do  business  with  us  expect  that  we  will  protect  their  personal  information  in 
accordance with our legal obligations and policy commitments. 

Our  Global  Data  Protection  Policy  regulates  the  processing  of  personal  data  in  accordance  with  the  applicable  data 
protection  laws  of  the  countries  where  we  operate,  including  Europe’s  General  Data  Protection  Regulation  (GDPR) 
framework. This policy governs ICON’s and its employees’ obligations concerning the processing of personal data, including 
core privacy issues such as how we address data subject rights, data protection impact assessments and our obligations to 
maintain records of processing activities (ROPAs).

ICON has a separate Personal Data Incident and Breach Response Policy and Process that governs the management of 
personal  data  incidents  and  breaches  within  ICON.  The  policy  requires  incidents  to  be  reported  to  ICON’s  Global  Data 
Protection Officer (DPO) and Privacy Team, who manage them in collaboration with relevant internal stakeholders (e.g., IT 
Security,  Quality  &  Compliance),  to  ensure  we  comply  with  our  legal  and  contractual  obligations,  including  our  reporting 
obligations.  In  2023,  in  combination  with  our  existing  ISO  27001  certification,  ICON’s  data  protection  policies  and 
procedures were certified to ISO 27701. Our privacy program is overseen by the CAO.

Our  people  and  partners  play  a  critical  role  in  safeguarding  data.  ICON  has  training  in  place  for  all  employees  and 
contingent workers on information security and privacy practices so that they understand their responsibilities with respect to 
data  security  and  privacy.  ICON  has  also  established  a  robust  Privacy  and  Security  Champion  (PSC)  network.  The  PSC 
network acts as an extension of the Privacy and Information Security teams. In line with the PSC charter, champions provide 
a  key  touch  point  in  relevant  business  units,  bolster  awareness  of  ICON’s  respective  privacy  and  security  programs  and 
provide direct support in response to priorities dictated by ICON’s Privacy and Security Council (chaired by ICON’s Global 
Data Protection Officer and Head of Information Security).

For further details on risks relating to information security and privacy refer to Appendix A.

27Directors’ Report (continued)

Sustainable procurement

ICON maintains policies and processes to support responsible, sustainable, and ethical business practices. Our goal is to 
source from suppliers whose values align with our own, who share our commitment to diversity and inclusion, and who are 
socially and environmentally responsible and conscious.

We manage our suppliers through our Global Procurement department. The onboarding of all new suppliers is completed 
through a robust centrally managed due diligence process. Environmental sustainability, bribery, and corruption risks are a 
focus of our third-party assessment and management process. 

ICON performs pre-engagement due diligence on our suppliers. This includes screening of sanctions lists, debarment, and 
adverse  media.  Suppliers  are  continuously  monitored  against  sanctions  and  debarment  lists  and  are  periodically  re-
screened.  Suppliers  deemed  higher  risk  are  subject  to  enhanced  due  diligence  and  controls,  which  may  include  periodic 
training, auditing, and assessments. 

We require our suppliers to abide by our Global Supplier Code of Conduct which incorporates the Pharmaceutical Supply 
Chain Initiative (PSCI) principles for Responsible Supply Chain Management and sets out our standards and expectations 
regarding:

•
•
•
•

Ethics and compliance
Labor and human rights
Health and safety
Environmental stewardship

Our Global Supplier Code of Conduct also outlines channels to report concerns or grievances related to our suppliers, such 
as  our  Ethics  Line.  We  operate  a  strict  anti-retaliation  policy  and  expect  suppliers  to  do  the  same.  We  hold  our  suppliers 
accountable  for  meeting  their  contractual  obligations,  including  commitments  relating  to  the  Global  Supplier  Code  of 
Conduct  and  regulatory  compliance.  Contract  non-compliance  can  result  in  termination  of  the  business  relationship  and 
exclusion from future business with our company.

To further support the development of our sustainable procurement program, ICON has engaged with EcoVadis, CDP and 
Supplier IO to help assess our key suppliers and gather data around sustainability maturity, GHG emissions and diversity 
status and classifications. This data allows us to factor sustainability related factors into our supplier selection activities and 
embed sustainability into our procurement practices.

For further details on risks relating to sustainable procurement refer to Appendix A: Risk Factors.

Directors’ compliance statement

The Directors, in accordance with Section 225(2) of the Companies Act, acknowledge that they are responsible for securing 
the Company’s compliance with its relevant obligations as defined within the Companies Act, (hereinafter called the relevant 
obligations).

The Directors confirm that:

•

•

•

a  compliance  policy  statement  has  been  drawn  up  setting  out  the  Company’s  policies  with  regard  to  such 
compliance;
appropriate arrangements and structures that, in their opinion, are designed to secure material compliance with the 
Company’s relevant obligations, have been put in place; and
a review has been conducted, during the financial year, of the arrangements and structures that have been put in 
place to secure the Company’s compliance with the relevant obligations.

Auditor

In accordance with Section 383(2) of the Companies Act, KPMG, Chartered Accountants, will continue in office.  

While there has been no change yet in our auditor, in 2023, the Audit Committee of the Company engaged in a competitive 
audit  tender  process  for  the  position  of  statutory  auditor.  Based  on  the  results  of  this  process,  the  Audit  Committee  is 
recommending that Ernst & Young be appointed as statutory auditors and independent registered public accounting firm to 
the Company in respect of the financial year ending 31 December 2025. Ernst & Young's appointment will be subject to the 
passing of an ordinary resolution confirming the appointment at the Company's 2025 Annual General Meeting. 

28Directors’ Report (continued)

KPMG, our current auditor, who will audit the financial statements for the year ending 31 December 2024, is expected to 
resign shortly after completion of the audit of the Company's financial statements for the year ending 31 December 2024. 

During the two years ended 31 December 2023 and 31 December 2022 and any subsequent interim period there were no 
disagreements  with  KPMG  on  any  matter  of  accounting  principles  or  practices,  financial  statement  disclosure,  or  auditing 
scope or procedures, which disagreements if not resolved to their satisfaction would have caused them to make reference in 
connection with their opinion to the subject matter of the disagreement.

On behalf of the Board

Steve Cutler 

Rónán Murphy

Chief Executive Officer

Director

23 April 2024

29Statement  of  Directors’  Responsibilities  in  respect  of  the  Directors’  report  and  the 
financial statements

The directors are responsible for preparing the annual report and the financial statements in accordance with applicable law 
and regulations.

Company law requires the directors to prepare Group and Company financial statements for each financial year. Under that 
law,  the  directors  are  required  to  prepare  the  Group  financial  statements  in  accordance  with  IFRS  as  adopted  by  the 
European  Union.  The  directors  have  elected  to  prepare  the  Company  financial  statements  in  accordance  with  FRS  101 
Reduced Disclosure Framework and applicable law.

Under company law the directors must not approve the Group and Company financial statements unless they are satisfied 
that  they  give  a  true  and  fair  view  of  the  assets,  liabilities  and  financial  position  of  the  Group  and  Company  and  of  the 
Group’s profit or loss for that year.

In preparing the Group and Company financial statements, the directors are required to:

•

select suitable accounting policies and then apply them consistently;

• make judgements and estimates that are reasonable and prudent;

•

•

•

state whether applicable Accounting Standards have been followed, subject to any material departures disclosed 
and explained in the financial statements;

assess the Group and Company’s ability to continue as a going concern, disclosing, as applicable, matters related 
to going concern; and

use the going concern basis of accounting unless they either intend to liquidate the Group or Company or to cease 
operations, or have no realistic alternative but to do so.

The directors are responsible for keeping adequate accounting records which disclose with reasonable accuracy at any time 
the assets, liabilities, financial position of the Group and Company and the profit and loss of the Group and which enable 
them to ensure that the financial statements comply with the provision of the Companies Act 2014. The directors are also 
responsible for taking all reasonable steps to ensure such records are kept by its subsidiaries which enable them to ensure 
that the financial statements of the Group comply with the provisions of the Companies Act 2014. They are responsible for 
such  internal  controls  as  they  determine  is  necessary  to  enable  the  preparation  of  financial  statements  that  are  free  from 
material misstatement, whether due to fraud or error, and have a general responsibility for safeguarding the assets of the 
Company  and  the  Group,  and  hence  for  taking  reasonable  steps  for  the  prevention  and  detection  of  fraud  and  other 
irregularities. The directors are also responsible for preparing a directors’ report that complies with the requirements of the 
Companies Act 2014.

The directors are responsible for the maintenance and integrity of the corporate and financial information included on the 
Group’s  and  Company’s  website  www.iconplc.com.  Legislation  in  the  Republic  of  Ireland  concerning  the  preparation  and 
dissemination of financial statements may differ from legislation in other jurisdictions.

On behalf of the Board

Steve Cutler 

Rónán Murphy

Chief Executive Officer

Director

30Independent Auditor’s Report to the members of ICON plc 

Report on the audit of the financial statements

Opinion

We  have  audited  the  financial  statements  of  ICON  plc  (‘the  Company’)  and  its  consolidated  undertakings  (together,  “the 
Group”) for the year ended 31 December 2023, set out on pages 38 to 148, which comprise the Consolidated Statement of 
Profit  and  Loss,  Consolidated  Statement  of  Comprehensive  Income,  Consolidated  Statement  of  Financial  Position, 
Consolidated  Statement  of  Changes  in  Equity,  Consolidated  Statement  of  Cash  Flows,  Company  Statement  of  Financial 
Position, Company Statement of Changes in Equity, and related notes, including the material accounting policies set out in 
note 1 of the consolidated financial statements.

The financial reporting framework that has been applied in the preparation of the Group financial statements is Irish Law and 
International  Financial  Reporting  Standards  (IFRS)  as  adopted  by  the  European  Union  and,  as  regards  the  Company 
financial statements, Irish Law and FRS 101 Reduced Disclosure Framework issued in the United Kingdom by the Financial 
Reporting Council.

In our opinion:

•

•

•

•

the financial statements give a true and fair view of the assets, liabilities and financial position of the Group and the 
Company as at 31 December 2023 and of the Group’s profit for the year then ended;

the Group financial statements have been properly prepared in accordance with IFRS as adopted by the European 
Union; and

the Company financial statements have been properly prepared in accordance with FRS 101 Reduced Disclosure 
Framework issued by the UK’s Financial Reporting Council; and

the Group and Company financial statements have been properly prepared in accordance with the requirements of 
the Companies Act 2014.

Basis for opinion

We conducted our audit in accordance with International Standards on Auditing (Ireland) (ISAs (Ireland)) and applicable law.  
Our responsibilities under those standards are further described in the Auditor's responsibilities for the audit of the financial 
statements section of our report.  We have fulfilled our ethical responsibilities under, and we remained independent of the 
Company in accordance with ethical requirements that are relevant to our audit of financial statements in Ireland, including 
the Ethical Standard issued by the Irish Auditing and Accounting Supervisory Authority (IAASA), as applied to listed entities.  

We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion.

Conclusions relating to going concern

In auditing the financial statements, we have concluded that the director's use of the going concern basis of accounting in 
the preparation of the financial statements is appropriate. Our evaluation of the director’s assessment of the entity’s ability to 
continue to adopt the going concern basis of accounting included:   

•

•

•

•

considered liquidity and available financial resources to maintain operations;

recalculated the financial and liquidity metrics noted in the assessment with reference to the primary financial 
statements;

evaluated ICON’s probable financial obligations, being expected debt payments and commitments over the next 
twelve months; and

considered ongoing legal matters

Based  on  the  work  we  have  performed,  we  have  not  identified  any  material  uncertainties  relating  to  events  or  conditions 
that, individually or collectively, may cast significant doubt on the Group’s or the Company’s ability to continue as a going 
concern for a period of at least twelve months from the date when the financial statements are authorised for issue.  Our 
responsibilities and the responsibilities of the directors with respect to going concern are described in the relevant sections 
of this report.

31 
                                                                                                                                                                                                                                                 
Independent Auditor’s Report to the members of ICON plc (continued)

Detecting irregularities including fraud

We identified the areas of laws and regulations that could reasonably be expected to have a material effect on the financial 
statements  and  risks  of  material  misstatement  due  to  fraud,  using  our  understanding  of  the  entity's  industry,  regulatory 
environment and other external factors and inquiry with the directors.  In addition, our risk assessment procedures included:

•

•

•

•

•

•

Inquiring  with  the  directors  as  to  the  Group’s  policies  and  procedures  regarding  compliance  with  laws  and 
regulations,  identifying,  evaluating  and  accounting  for  litigation  and  claims,  as  well  as  whether  they  have 
knowledge of non-compliance or instances of litigation or claims.

Inquiring  of  directors  as  to  the  Group’s  policies  and  procedures  to  prevent  and  detect  fraud,  as  well  as  whether 
they have knowledge of any actual, suspected or alleged fraud.

Inquiring of directors and the audit committee, regarding their assessment of the risk that the financial statements 
may be materially misstated due to irregularities, including fraud.

Inspecting the Group’s legal correspondence.

Reading Board and audit committee meeting minutes.

Performing planning analytical procedures to identify any usual or unexpected relationships.

We discussed identified laws and regulations, fraud risk factors and the need to remain alert among the audit team.

Firstly,  the  Group  is  subject  to  laws  and  regulations  that  directly  affect  the  financial  statements  including  companies  and 
financial  reporting  legislation.  We  assessed  the  extent  of  compliance  with  these  laws  and  regulations  as  part  of  our 
procedures on the related financial statement items, including assessing the financial statement disclosures and agreeing 
them to supporting documentation when necessary.

Secondly, the Group is subject to many other laws and regulations where the consequences of non-compliance could have 
a  material  effect  on  amounts  or  disclosures  in  the  financial  statements,  for  instance  through  the  imposition  of  fines  or 
litigation.  We  identified  the  following  areas  as  those  most  likely  to  have  such  an  effect:  health  and  safety,  anti-bribery, 
employment law, environmental law, regulatory capital and liquidity.

Auditing standards limit the required audit procedures to identify non-compliance with these non-direct laws and regulations 
to inquiry of the directors and inspection of regulatory and legal correspondence, if any. These limited procedures did not 
identify actual or suspected non-compliance.

We assessed events or conditions that could indicate an incentive or pressure to commit fraud or provide an opportunity to 
commit fraud. As required by auditing standards, we performed procedures to address the risk of management override of 
controls and the risk of fraudulent revenue recognition. We identified a fraud risk in relation to the Group and Component 
clinical trial service revenue, being the contract realizable value.

Further detail in respect of the clinical trial service revenue is set out in the key audit matter disclosures of this report.

In response to the fraud risks, we also performed procedures including:

•

•

•

Identifying  journal  entries  to  test  based  on  risk  criteria  and  comparing  the  identified  entries  to  supporting 
documentation.

Assessing significant accounting estimates for bias.

Assessing the disclosures in the financial statements.

As  the  Group  is  regulated,  our  assessment  of  risks  involved  obtaining  an  understanding  of  the  legal  and  regulatory 
framework  that  the  Group  operates  and  gaining  an  understanding  of  the  control  environment  including  the  entity’s 
procedures for complying with regulatory requirements.

Owing  to  the  inherent  limitations  of  an  audit,  there  is  an  unavoidable  risk  that  we  may  not  have  detected  some  material 
misstatements in the financial statements, even though we have properly planned and performed our audit in accordance 
with auditing standards. For example, the further removed non-compliance with laws and regulations (irregularities) is from 
the events and transactions reflected in the financial statements, the less likely the inherently limited procedures required by 
auditing standards would identify it.

32Independent Auditor’s Report to the members of ICON plc (continued)

Detecting irregularities including fraud (continued)

In addition, as with any audit, there remains a higher risk of non-detection of irregularities, as these may involve collusion, 
forgery, intentional omissions, misrepresentations, or the override of internal controls. We are not responsible for preventing 
non-compliance and cannot be expected to detect non-compliance with all laws and regulations.

Key audit matters: our assessment of risks of material misstatement

Key  audit  matters  are  those  matters  that,  in  our  professional  judgement,  were  of  most  significance  in  the  audit  of  the 
financial statements and include the most significant assessed risks of material misstatement (whether or not due to fraud) 
identified by us, including those which had the greatest effect on: the overall audit strategy; the allocation of resources in the 
audit; and directing the efforts of the engagement team.  These matters were addressed in the context of our audit of the 
financial  statements  as  a  whole,  and  in  forming  our  opinion  thereon,  and  we  do  not  provide  a  separate  opinion  on  these 
matters.

In arriving at our audit opinion above, the key audit matters were as follows (unchanged from 2022):

Group Key Audit Matters

Revenue recognition for certain clinical trial service contracts included in the total of $982 million (2022: $944 million)

Refer to note 1 on page 56 (significant accounting policies) note 3 on page 61 (financial disclosures)

33Independent Auditor’s Report to the members of ICON plc (continued)

The key audit matter

How the matter was addressed in our audit

As discussed in Note 3 to the 
consolidated financial statements, 
the Company recognized revenue 
of US$8,120 million for the year 
ended 31 December 2023, a 
portion of which relates to clinical 
trial service revenue. As discussed 
in Note 1 to the consolidated 
financial statements, clinical trial 
service revenue is recognized over 
time, using an input measure, 
being total project costs (inclusive 
of third-party costs, principally 
pass-through/ reimbursable 
expenses) incurred at each 
reporting period as a percentage of 
forecasted total project costs, to 
measure progress towards 
satisfying the Company’s 
performance obligation. The 
transaction price is based on the 
contract or latest change order 
value, adjusted to reflect the 
estimated realizable contract 
value. 

We identified the evaluation of 
revenue recognition for a subset of 
clinical trial service revenue as a 
key audit matter. Complex and 
subjective auditor judgment was 
required to evaluate the 
Company’s estimate of total 
forecast project costs and the 
estimated realizable contract 
values.

For the reasons outlined above the 
engagement team determine this 
matter to be a key audit matter.

Our audit procedures included:

• We evaluated the design and tested the operating effectiveness of certain 

internal controls related to the revenue process, including controls over total 
forecast project costs and estimated realizable contract values.

• We tested the total forecast project costs and the realizable contract values for a 

selection of clinical trial service contracts, by evaluating:

•

•

•

•

•

•

direct costs incurred, both during the year and cumulative over the life of 
the contracts. We tested the accuracy and completeness of the direct 
costs by comparing the amounts to source data

third-party costs incurred, both during the year and cumulative over the life 
of the contracts. We tested the accuracy and completeness of the third-
party costs incurred by comparing the costs to invoices received

findings from interviews with operational personnel of the Company to 
assess progress to date, the estimate of remaining costs to be incurred 
and factors impacting the amount of time and costs to complete the 
selected contracts, including an understanding of the nature and 
complexity of the work to be performed

correspondence of amendments to the scope or contract value, if any, 
between the Company and the customer for the selected contracts as part 
of our evaluation of contract progress

quarterly movements in forecast project costs and project margins and 
investigating the reasons for those movements, and

the reasonableness of the Company’s adjustments from total contract 
value to arrive at realizable contract value. We confirmed total contract 
value with customers and compared the assumptions used to derive the 
adjustments from total contract value to realizable contract value to 
underlying records.

• We also evaluated the Company’s methods, assumptions and data used to 

accurately estimate total forecast project costs and realizable contract values, 
by comparing historical estimates developed at contract inception to actual 
results for a selection of clinical trial service contracts.

We found that the estimates and judgements used in determining the progress 
towards completion and realisable contract value related to revenue recognition for 
clinical trial services contracts were appropriate.

34Independent Auditor’s Report to the members of ICON plc (continued)

Company key audit matters

Investment in subsidiary undertakings $7,149 million (2022: $7,086 million)

Refer to note 1 on page 54 (significant accounting policies) and note 2 on page 139 (financial disclosures)

The key audit matter

How the matter was addressed in our audit

Our audit procedures included:

• We compared the carrying value of investments in the Company’s Balance 

Sheet to the net assets of the subsidiary financial statements.

• We compared the carrying value of subsidiaries to the market capitalisation 

of the Company at December 31, 2023.

Based on evidence obtained, we found management’s assessment of the key 
assumptions used in assessing the carrying value of investments in subsidiary 
undertakings to be appropriate.

The carrying amount of the Company’s 
investments in subsidiary undertakings 
represents 97.2% (2022: 97.8%) of the 
Company’s total assets.

The investment in subsidiary 
undertakings is carried in the Balance 
Sheet of the Company at cost less 
impairment.  At December 31, 2023, the 
investment carrying value was $7,149 
million.

We do not consider there to be a 
significant risk of error related to the 
carrying value of these investments, or 
to be subject to a significant level of 
judgements or estimation due to the 
Group’s market capitalisation at year 
end.  However, due to their materiality in 
the context of the Company financial 
statements, they are considered an 
area of audit focus and of significance 
to the audit of the Company financial 
statements

For the reasons outlined above the 
engagement team determine this matter 
to be a key audit matter.

Our application of materiality and an overview of the scope of our audit  

Materiality for the Group financial statements as a whole was set at US$30.0 million (2022: US$30.0 million), determined 
with reference to a benchmark of expected Group profit before tax (this estimated amount was based on earnings guidance 
available at the planning stage of the audit adjusted for exceptional items) (of which it represents 4.2% (2022: 4.8%).  Group 
profit before tax is the most relevant metric to the users of the financial statements in assessing the financial performance of 
the  Group.  The  stability  of  the  business  environment  was  the  key  qualitative  factor  in  determining  the  percentage  to  be 
applied to the benchmark.

With respect to the Company, we based our calculation of materiality on total assets due to its nature as a holding company.  
As  the  calculated  materiality  was  higher  than  Group  materiality,  we  restricted  our  materiality  to  US$30.0  million  (2022: 
US$30.0 million).

Performance  materiality  for  the  Group  financial  statements  and  Company  financial  statements  as  a  whole  was  set  at 
US$22.5  million  (2022:  US$22.5  million)  and  US$22.5  million  (2022:  US$22.5  million)  respectively,  determined  with 
reference to benchmarks of expected Group profit before tax for the Group and total assets for the Company (of which it 
represents 3.96% (2022: 3.57%) and 0.13% (2022: 0.31%) respectively).  We applied this percentage in our determination 
of performance materiality based on the level of identified control deficiencies during the prior period.

We reported to the Audit Committee any corrected or uncorrected identified misstatements exceeding US$1.5 million (2022: 
US$1.5 million), in addition to other identified misstatements that warranted reporting on qualitative grounds.  Our audit was 
undertaken  to  the  materiality  and  performance  materiality  level  specified  above  and  we  applied  materiality  to  assist  us 
determine what risks were significant risks and the procedures to be performed.

35Independent Auditor’s Report to the members of ICON plc (continued)

Our application of materiality and an overview of the scope of our audit  (continued)

The structure of the Group’s finance function is such that the majority of transactions and balances are accounted for by the 
central Group finance team. We performed comprehensive audit procedures, including those in relation to the significant risk 
set out above, on those transactions accounted for at Group level. Our audit covered 91% of total Group revenue and 98% 
of total Group assets, including 100% of the Company’s revenue and total assets.

We  identified  4  (2022:  4)  components  in  the  scope  of  our  audit,  we  subjected  1  (2022:1)  to  a  full  scope  audit  for  group 
purposes.

Other information

The  directors  are  responsible  for  the  other  information  presented  in  the  Annual  Report  together  with  the  financial 
statements. The other information comprises the information included in the directors’ report and appendix A. The financial 
statements  and  our  auditor’s  report  thereon  do  not  comprise  part  of  the  other  information.  Our  opinion  on  the  financial 
statements does not cover the other information and, accordingly, we do not express an audit opinion or, except as explicitly 
stated below, any form of assurance conclusion thereon.  

Our  responsibility  is  to  read  the  other  information  and,  in  doing  so,  consider  whether,  based  on  our  financial  statements 
audit  work,  the  information  therein  is  materially  misstated  or  inconsistent  with  the  financial  statements  or  our  audit 
knowledge. Based solely on that work we have not identified material misstatements in the other information.

Based solely on our work on the other information undertaken during the course of the audit we report that in those parts of 
the Directors specified for our consideration:

•

•

•

we have not identified material misstatements in the directors’ report or appendix A;

in  our  opinion,  the  information  given  in  the  directors’  report  and  appendix  A  is  consistent  with  the  financial 
statements;

in our opinion, the directors’ report has been prepared in accordance with the Companies Act 2014.		

Our opinions on other matters prescribed by the Companies Act 2014 are unmodified

We have obtained all the information and explanations which we consider necessary for the purpose of our audit.   

In our opinion, the accounting records of the Company were sufficient to permit the financial statements to be readily and 
properly audited and the Company’s financial statements are in agreement with the accounting records.  

We have nothing to report on other matters on which we are required to report by exception

The Companies Act 2014 requires us to report to you if, in our opinion:

•

•

the disclosures of directors’ remuneration and transactions required by Sections 305 to 312 of the Act are not 
made. 

the Company has not provided the information required by section 5(2) to (7) of the European Union (Disclosure of 
Non-Financial and Diversity Information by certain large undertakings and groups) Regulations 2017 for the year 
ended  31  December  2023  as  required  by  the  European  Union  (Disclosure  of  Non-Financial  and  Diversity 
Information by certain large undertakings and groups) (amendment) Regulations 2018.

We have nothing to report in this regard.

Respective responsibilities and restrictions on use

Responsibilities of directors for the financial statements

As  explained  more  fully  in  their  statement  set  out  on  page  30,  the  directors  are  responsible  for:  the  preparation  of  the 
financial statements including being satisfied that they give a true and fair view; such internal control as they determine is 
necessary to enable the preparation of financial statements that are free from material misstatement, whether due to fraud 
or  error;  assessing  the  Group  and  Company’s  ability  to  continue  as  a  going  concern,  disclosing,  as  applicable,  matters 
related to going concern; and using the going concern basis of accounting unless they either intend to liquidate the Group or 
the Company or to cease operations, or have no realistic alternative but to do so.

36 
Independent Auditor’s Report to the members of ICON plc (continued)

Auditor’s responsibilities for the audit of the financial statements

Our objectives are to obtain reasonable assurance about whether the financial statements as a whole are free from material 
misstatement,  whether  due  to  fraud  or  error,  and  to  issue  an  auditor’s  report  that  includes  our  opinion.    Reasonable 
assurance is a high level of assurance, but is not a guarantee that an audit conducted in accordance with ISAs (Ireland) will 
always  detect  a  material  misstatement  when  it  exists.  Misstatements  can  arise  from  fraud  or  error  and  are  considered 
material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions of users 
taken on the basis of these financial statements.    

A fuller description of our responsibilities is provided on IAASA’s website at 
https://iaasa.ie/publications/description-of-the-auditors-responsibilities-for-the-audit-of-the-financial-statements/

The purpose of our audit work and to whom we owe our responsibilities

Our  report  is  made  solely  to  the  Company’s  members,  as  a  body,  in  accordance  with  Section  391  of  the  Companies Act 
2014.  Our  audit  work  has  been  undertaken  so  that  we  might  state  to  the  Company’s  members  those  matters  we  are 
required to state to them in an auditor’s report and for no other purpose. To the fullest extent permitted by law, we do not 
accept or assume responsibility to anyone other than the Company and the Company’s members, as a body, for our audit 
work, for our report, or for the opinions we have formed.

John Corrigan    
for and on behalf of 
KPMG
Chartered Accountants, Statutory Audit Firm
1 Stokes Place
St. Stephen’s Green
Dublin 2
Ireland

              24 April 2024 

37 
 
 
 
 
 
 
 
    
 
Consolidated Statement of Profit and Loss
for the year ended 31 December 2023

31 December 2023

31 December 2022

Pre-
exceptional

Exceptional 
(Note 9)

Note

$’000

$’000

Total 

$’000

Pre-
exceptional

Exceptional 
(Note 9)

$’000

$’000

Total 

$’000

Revenue

  3   

8,120,176   

—   

8,120,176   

7,733,386   

—   

7,733,386 

Direct costs

(5,719,025)  

—   

(5,719,025)  

(5,521,522)  

—   

(5,521,522) 

Other operating expenses

(1,347,694)  

(89,566)  

(1,437,260)  

(1,334,235)  

(70,838)  

(1,405,073) 

Operating profit

1,053,457   

(89,566)  

963,891   

877,629   

(70,838)  

806,791 

Share of equity method 
investment losses

Financing income

Financing expense

Profit before taxation

Income tax expense

Profit for the financial 
year

Earnings per share

Basic

Diluted

On behalf of the Board

19  

4  

5  

6  

7  

8

8

(383)  

5,014   

(340,871)  

—   

—   

—   

(383)  

5,014   

(3,136)  

2,345   

(340,871)  

(234,201)  

—   

—   

—   

(3,136) 

2,345 

(234,201) 

717,217   

(89,566)  

627,651   

642,637   

(70,838)  

571,799 

(32,830)  

14,203   

(18,627)  

(79,679)  

14,165   

(65,514) 

684,387   

(75,363)  

609,024   

562,958   

(56,673)  

506,285 

7.42 

7.36 

6.21 

6.13 

Steve Cutler 

Rónán Murphy

Chief Executive Officer

Director

38 
 
 
 
 
 
 
 
Consolidated Statement of Comprehensive Income
for the year ended 31 December 2023

31 December
2023

31 December
2022

Note

$’000

$’000

Profit for the financial year

609,024   

506,285 

Other comprehensive income/(loss)

Items that will not be reclassified to profit or loss:

Re-measurement of defined benefit liability

Items that are or may be reclassified subsequently to profit or loss, net of tax:

Currency translation differences

Tax benefit on defined benefit pension

Gain/(loss) on cash flow hedge

525   

525   

13,265 

13,265 

25  

26,221   

(88,444) 

25  

—   
1,567   

(754) 

(3,728) 

27,788   

(92,926) 

Other comprehensive income/(loss) for the year, net of tax

28,313   

(79,661) 

Total comprehensive income for the financial year 

637,337   

426,624 

On behalf of the Board

Steve Cutler 

Rónán Murphy

Chief Executive Officer

Director

39 
 
 
 
 
 
 
Consolidated Statement of Financial Position
as at 31 December 2023

ASSETS
Non-current assets

Property, plant and equipment
Right-of-use assets
Goodwill
Intangible assets 
Other non-current assets
Financial assets
Deferred tax assets

Total non-current assets
Current assets
Inventories
Trade receivables
Unbilled revenue (contract assets)
Other current assets
Current taxes receivable
Current asset investments
Cash and cash equivalents

Total current assets
Total assets
EQUITY

Share capital
Share premium
Other undenominated capital
Share-based payment reserve
Other reserves
Foreign currency reserve
Merger reserve
Retained earnings

Total equity
LIABILITIES
Non-current liabilities

Non-current bank credit lines and loan facilities
Non-current lease liabilities
Non-current other liabilities
Non-current provisions
Deferred tax liabilities

Total non-current liabilities
Current liabilities
Accounts payable
Unearned revenue (contract liabilities)
Accrued and other liabilities
Provisions
Current tax payable
Bank credit lines and loan facilities

Total current liabilities
Total liabilities
Total equity and liabilities

On behalf of the Board

Steve Cutler 
Chief Executive Officer

Rónán Murphy
Director

Note

31 December
2023
$’000

31 December
2022
$’000

13  
27  
14  
14  
18  
19   
7  

16  
17  
17  
18  

19  
20  

24  
25  
25  
25  
25  
25  
25  
25  

23  
27  
21  
9  
7  

17   
21  
9   

23   

161,970   
137,264   
9,074,884   
4,055,079   
78,470   
46,804   
105,229   
13,659,700   

8,442   
1,790,322   
951,936   
189,460   
91,254   
1,954   
378,102   
3,411,470   
17,071,170   

6,699   
523,646   
1,162   
354,183   
10,183   
(148,844)  
5,656,195   
2,919,591   
9,322,815   

3,665,439   
126,321   
43,950   
2,048   
898,335   
4,736,093   

131,584   
1,654,507   
910,448   
4,951   
200,622   
110,150   
3,012,262   
7,748,355   
17,071,170   

178,227 
151,199 
9,024,479 
4,450,752 
76,861 
32,631 
98,117 
14,012,266 

7,063 
1,731,388 
957,655 
187,617 
70,170 
1,713 
288,768 
3,244,374 
17,256,640 

6,649 
472,723 
1,162 
381,098 
7,601 
(175,065) 
5,656,195 
2,219,619 
8,569,982 

4,599,037 
131,644 
37,752 
510 
987,927 
5,756,870 

81,194 
1,507,449 
999,512 
5,512 
280,971 
55,150 
2,929,788 
8,686,658 
17,256,640 

40 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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42 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Statement of Cash Flows 
for the year ended 31 December 2023

Profit for the financial year
Adjustments to reconcile net income to net cash generated from operating 
activities

Depreciation of property, plant and equipment
Depreciation of right-of-use assets
Impairment of long lived assets
Amortisation of intangible assets
Loss on equity method investments
Share-based payment
Acquisition related gain
Financing income
Financing expense
Defined benefit costs
Income tax expense
Unrealised foreign exchange
Other non cash items

Operating cash inflow before changes in working capital

Accounts receivable
Unbilled revenue
Unearned revenue
Other net assets

Cash provided by operations

Income taxes paid
Employer contribution defined benefit pension scheme
Interest received
Interest paid

Net cash inflow from operating activities
Investing activities

Purchase of property, plant and equipment
Purchase of intangible assets
Purchase of subsidiary undertakings
Sale/maturity of current asset investments
Purchase of current asset investments
Proceeds from sale of financial assets
Purchase of financial assets

Net cash used in investing activities
Financing activities

Drawdown of bank credit lines and loan facilities
Repayment of bank credit lines and loan facilities
Repayments of obligations under lease liabilities
Tax benefit from the exercise of share options
Proceeds from exercise of share options, RSUs and PSUs
Share issuance costs
Repurchase of ordinary shares
Share repurchase costs

Net cash used in financing activities
Net increase / (decrease) in cash and cash equivalents
Effect of exchange rate changes
Cash and cash equivalents at start of year
Cash and cash equivalents at end of year

Note 31 December
2023
$’000
609,024   

31 December
2022
$’000
506,285 

13  
27  
9  
14  
19  
12  
15  
4  
5  

7  

4  

14  
15  
19  
19  

19  

23  
23  

48,158   
41,982   
8,686   
537,792   
383   
51,380   
(6,160)   
(5,014)   
340,871   
319   
18,627   
19,706   
24,332   
1,690,086   
(83,296)   
4,716   
134,566   
(58,086)   
1,687,986   
(163,778)   
(741)   
5,014   
(317,975)   
1,210,506   

(29,326)   
(111,366)   
(71,766)   
2,616   
(2,857)   
—   
(13,954)   
(226,653)   

370,000   
(1,265,000)   
(53,802)   
4,323   
50,973   
(16)   
—   
—   
(893,522)   
90,331   
(997)   
288,768   
378,102   

48,692 
45,215 
28,767 
518,656 
3,136 
55,790 
— 
(2,345) 
234,201 
744 
65,514 
(13,009) 
11,324 
1,502,970 
(420,695) 
(332,592) 
200,944 
(13,501) 
937,126 
(116,322) 
(508) 
2,345 
(206,448) 
616,193 

(52,205) 
(89,955) 
— 
481 
(482) 
1,906 
(5,612) 
(145,867) 

75,000 
(875,000) 
(54,617) 
1,739 
35,844 
(17) 
(99,983) 
(17) 
(917,051) 
(446,725) 
(16,720) 
752,213 
288,768 

43 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements 
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies

Statement of accounting policies 

The  Group  Financial  Statements  have  been  prepared  in  accordance  with  International  Financial  Reporting  Standards 
("IFRS") issued by the International Accounting Standards Board (“IASB”) as adopted by the European Union ("EU") that are 
effective for financial year ending 31 December 2023, and with those parts of the Companies Act applicable to companies 
reporting under IFRS. IFRS adopted by the EU differs in certain respects from IFRS issued by the IASB. Reference to IFRS 
hereafter refers to IFRS adopted by the EU.

The  Company  Financial  Statements  are  prepared  under  the  historical  cost  convention,  in  accordance  with  Financial 
Reporting  Standard  101  Reduced  Disclosure  Framework  (‘FRS  101’)  and  the  Companies Act  2014. The  Company  meets 
the definition of a qualifying entity under Financial Reporting Standard (FRS) 100 issued by the Financial Reporting Council 
(FRC).  Accordingly,  in  the  year  ended  31  December  2023,  the  Company  transitioned  from  reporting  under  International 
Financial  Reporting  Standards  adopted  by  the  European  Union  (IFRS)  to  FRS  101  Reduced  Disclosure  Framework  as 
issued by the FRC. The transition was not considered to have had a material effect on the financial statements.

In  preparing  the  Company  Financial  Statements,  the  Company  applies  the  recognition,  measurement  and  disclosure 
requirements  of  IFRS  as  adopted  by  the  EU,  but  makes  amendments  where  necessary  in  order  to  comply  with  the 
Companies Act 2014 and has set out below where advantage of the FRS 101 disclosure exemptions has been taken. The 
Company has taken advantage of the following disclosure exemptions under FRS 101:

•
•
•
•
•
•

 A cash flow statement and related notes;
Comparative period reconciliation for share capital;
Disclosures in respect of transactions with wholly owned subsidiaries;
Disclosures in respect of capital management;
The effects of new but not yet effective IFRS; and
Disclosures in respect of the compensation of key management personnel.

As  the  consolidated  financial  statements  of  the  Group  are  prepared  in  accordance  with  IFRS  as  adopted  by  the  EU  and 
include the equivalent disclosures, the Company has also taken the exemptions under FRS 101 available in respect of the 
following disclosures:

•
•
•

Certain disclosures required by IFRS 2 Share-Based Payments;
Certain disclosures required by IFRS 13 Fair Value Measurement; and
The disclosures required by IFRS 7 Financial Instruments: Disclosures.

In accordance with Section 304(2) of the Companies Act 2014, the Company is availing of the exemption from presenting its 
individual income statement to the Annual General Meeting and from filing it with the Companies Registration Office. The 
Company’s loss for the financial year determined in accordance with IFRS is $9.0 million (2022: $2.6 million). 

Basis of preparation 

The  Group  and  Company  Financial  Statements  are  presented  in  United  States  dollars  ("U.S.  dollars")  and  all  values  are 
rounded to the nearest thousand ($‘000), except where otherwise indicated. They are prepared on the historical cost basis, 
except for the measurement at fair value on date of grant of share based payments, pension plan assets, derivative financial 
instruments and certain financial asset investments. Other than the amended standards adopted by the Group, accounting 
policies are applied consistently with the prior year. Certain comparative financial information has been reclassified to reflect 
current period classifications. 

The principal accounting policies adopted in the Company Financial Statements are the same as those set out for the Group 
financial  statements  except  as  noted  below.  The  accounting  policies  for  the  Group  and  Company  Financial  Statements 
have, unless otherwise stated, been applied consistently to all periods presented in these financial statements. 

44 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

New standards and interpretations

The  following  standards  and  interpretations  became  effective  for  the  Group  during  the  financial  year  but  do  not  have  a 
material effect on the results or financial position of the Group:

•
•
•

•

•

IFRS 17 Insurance Contracts 
Amendments to IAS 1 and IFRS Practice Statement 2, Disclosure of Accounting Policies
Amendments to IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors: Definition of Accounting 
Estimates
Amendments  to  IAS  12  Income  Taxes  -  Deferred  Tax  related  to  Assets  and  Liabilities  arising  from  a  Single 
Transaction
Amendments to IAS 12 Income Taxes - International Tax Reform — Pillar Two Model Rules 

The following standards and interpretations are not yet effective for the Group and are not expected to have a material effect 
on the results or financial position of the Group:

•

•
•
•

Amendments  to  IAS  1-  Classification  of  Liabilities  as  Current  or  Non-current  and  Non-current  Liabilities  with 
Covenants (Effective date: 1 January 2024)
Amendments to IAS 7 and IFRS 7 - Supplier Finance arrangements (Effective date: 1 January 2024)
Amendments to IFRS 16 - Leases - Lease liability in a sale and leaseback (Effective date: 1 January 2024)
Amendments to IFRS 21 - Lack of Exchangeability (Effective date: 1 January 2025)

Critical accounting judgements and key sources of estimation uncertainty

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the 
reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and 
expenses during the reported period. 

We  base  our  estimates  and  judgments  on  historical  experience  and  on  the  other  factors  that  we  believe  are  reasonable 
under current circumstances. Actual results may differ from these estimates if these assumptions prove to be incorrect or if 
conditions  develop  other  than  as  assumed  for  the  purposes  of  such  estimates.  The  following  is  a  discussion  of  the 
accounting policies used by us, which we believe are critical in that they require estimates and judgements by management. 
The  application  of  these  critical  accounting  policies  and  estimates  is  discussed  with  the Audit  Committee  of  the  Board  of 
Directors.

Revenue recognition

Significant management judgments and estimates must be made and used in connection with the recognition of revenue in 
any accounting period. Material differences in the amount of revenue in any given period may result if these judgments or 
estimates prove to be incorrect or if management’s estimates change on the basis of development of the business or market 
conditions. To date there have been no material differences arising from these judgments and estimates. We earn revenues 
by  providing  a  number  of  different  services  to  our  clients.  These  services,  which  are  integral  elements  of  the  clinical 
development process, include clinical trials management, contract staffing, consulting and laboratory services. The criteria 
for  revenue  recognition  is  based  on  five  steps:  (1)  identify  the  contract(s)  with  a  customer;  (2)  identify  the  performance 
obligation  in  the  contract;  (3)  determine  the  transaction  price;  (4)  allocate  the  transaction  price  to  the  performance 
obligations in the contract; and (5) recognise revenue when (or as) the entity satisfies the performance obligation.

Clinical  trial  services  are  a  single  performance  obligation  satisfied  over  time  i.e.  the  full-service  obligation  in  respect  of  a 
clinical  trial  (including  those  services  performed  by  investigators  and  other  parties)  is  considered  a  single  performance 
obligation.  Promises  offered  to  the  customer  are  not  distinct  within  the  context  of  the  contract.  We  have  concluded  that 
ICON  is  the  contract  principal  in  respect  of  both  direct  services  and  in  the  use  of  third  parties  (principally  investigator 
services)  that  support  the  clinical  research  project.  The  transaction  price  is  determined  by  reference  to  the  contract  or 
change  order  value  (total  service  revenue  and  pass-through/  reimbursable  expenses)  adjusted  to  reflect  a  realisable 
contract value. An assessment of the realisable contract value is judgmental in nature. The realisable value assessment is 
updated at each reporting period, having regard to (i) contract terms and (ii) customer experience.  

Revenue  is  recognised  on  a  percentage  completion  basis  as  the  single  performance  obligation  is  satisfied. The  progress 
towards completion for clinical service contracts is measured therefore based on an input measure being total project costs 
(inclusive of third party costs) at each reporting period. Measurement of the progress towards completion involves judgment 
and estimation.  

45 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Revenue recognition (continued)

Assessment  of  completion  requires  an  evaluation  of  labour  and  related  time  cost  incurred  at  the  reporting  date  and  third 
party  costs  incurred  at  the  reporting  date.  The  assessment  of  third  party  costs  incurred  (principally  investigator  costs) 
requires a review of activity performed and recorded by the third party services providers. The timing of payments to third 
parties in respect of cost incurred reflect invoicing by third parties. The timing difference between the activity performed and 
receipt of invoices from third parties may result in significant accrued amounts at reporting periods.  

The assessment of progress towards completion also requires an up to date evaluation of the forecast costs to complete in 
respect of these projects. Given the long-term nature of the clinical trials, and the complex nature of those trials, the forecast 
costs  to  complete  (being  internal  direct  costs  and  costs  that  will  be  incurred  by  third  parties  (principally  investigators))  is 
judgmental.  Forecast  time  (and  related  costs)  is  determined  by  reference  to  (i)  contract  terms  and  (ii)  past  experience. 
Forecast third party costs to complete are determined by project by reference to (i) contract terms and (ii) past experience. 

The  Company  provides  data  services  to  customers  based  on  agreed-upon  specifications,  including  the  timing  of  delivery, 
which is typically either weekly, monthly, or quarterly. If a customer requests more than one type of data report or series of 
data reports within a contract, each distinct type of data report is a separate performance obligation. The contracts provide 
for the Company to be compensated for the value of each deliverable. The transaction price is determined using list prices, 
discount agreements, if any, and negotiations with the customers, and generally includes any out-of-pocket expenses. 

The Company enters into contracts with some of its larger data suppliers that involve non-monetary terms. The Company 
issues purchase credits to be used toward the data supplier's purchase of the Company's services based on the fair value of 
the data obtained. In exchange, the Company receives monetary discounts on the data received from the data suppliers. 
The  fair  value  of  the  revenue  earned  from  the  customer  purchases  is  recognised  as  services  are  delivered  as  described 
above. At the end of the contract year, any unused customer purchase credits may be forfeited or carried over to the next 
contract  year  based  on  the  terms  of  the  data  supplier  contract.  The  calculation  of  the  fair  value  of  certain  non-monetary 
terms involves management judgement and estimation.

Intangible assets acquired in a business combination

Significant management judgments and estimates must be made and used in connection with the recognition of intangible 
assets associated with a business combination. The cost of a business combination is measured as the aggregate of the fair 
values at the date of exchange of assets given, liabilities incurred or assumed and equity instruments issued in exchange for 
control. The assets, liabilities and contingent liabilities of businesses acquired are generally measured at their fair values at 
the date of acquisition. When the initial accounting for a business combination is determined provisionally, any subsequent 
adjustments to the provisional values allocated to the identifiable assets, liabilities and contingent liabilities are made within 
twelve  months  of  the  acquisition  date  and  presented  as  adjustments  to  goodwill  in  the  reporting  period  in  which  the 
adjustments are determined.

Measurement of intangible assets involves the use of estimates for determining the fair value at the acquisition date.  The 
determination  of  the  fair  values  of  assets  and  liabilities,  as  well  as  of  the  useful  lives  of  the  assets  is  based  on 
management’s judgment. The valuation of intangible assets required management to develop discounted cash flow models 
which required the use of reasonable and supportable inputs such as customer attrition data, discount rates developed from 
various weighted average cost of capital assumptions, growth rates, margin forecasting and assessment of useful lives (see 
note 14 - Goodwill and intangible assets). Management utilised external valuation experts, where necessary, to ensure the 
valuation process was sufficiently detailed and robust to develop reliable valuations.

Taxation 

Given the global nature of our business and the multiple taxing jurisdictions in which the Group operates, the determination 
of the Group’s provision for income taxes requires significant judgments and estimates, the ultimate tax outcome of which 
may not be certain. Although we believe our estimates are reasonable, the final outcome of these matters may be different 
than those reflected in our historical income tax provisions and accruals.

Taxable profit differs from net profit as reported in the Consolidated Statement of Profit and Loss because it excludes items 
of  income  or  expense  that  are  taxable  or  deductible  in  other  years  and  further  excludes  items  that  are  not  taxable  or 
deductible. The Group’s liability for income tax is calculated using rates that have been enacted or substantively enacted at 
the reporting date. Income tax is recognised in the Consolidated Statement of Profit and Loss except to the extent that  it 
relates to items recognised directly in equity.

46Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Taxation (continued)

Deferred income tax is provided, using the liability method, on all differences between the carrying amounts of assets and 
liabilities  for  financial  reporting  purposes  and  the  amounts  used  for  taxation  purposes  except  those  arising  from  non-
deductible  goodwill  or  on  initial  recognition  of  an  asset  or  liability  which  affects  neither  accounting  nor  taxable  profit. 
Deferred tax assets and liabilities are measured at the tax rates that are expected to apply in the year when the asset is 
expected to be realised or the liability to be settled.

Recognition of deferred tax assets is based on management’s belief that it is more likely than not that the income tax benefit 
associated with certain temporary differences, income tax operating loss, capital loss carryforwards, and income tax credits, 
would be realised. The carrying amount of deferred income tax assets is reviewed at each reporting date and reduced to the 
extent that it is no longer probable that sufficient taxable profit would be available to allow all or part of the deferred income 
tax asset to be utilised. The Group accounts for the impact of GILTI (“global intangible low-taxed income”) in the period it 
arises and therefore have not provided for deferred taxes in respect of this item. The Group recognises the effect of income 
tax  positions  only  if  those  positions  will  more  likely  than  not  be  sustained.  If  the  estimate  of  future  taxable  income  or  tax 
strategies  changes  at  any  time  in  the  future,  the  Group  would  record  an  adjustment  to  the  deferred  tax  asset.  Recording 
such an adjustment could have a material effect on the Group's financial condition or results of operations.

Accounting policies

The  following  accounting  policies  have  been  applied  consistently  in  dealing  with  items  which  are  considered  material  in 
relation to the Group’s Financial Statements.

Basis of consolidation 

The  Group’s  Financial  Statements  consolidate  the  financial  statements  of  ICON  plc  and  its  subsidiaries.  Subsidiaries  are 
consolidated from the date on which control is transferred to the Group and cease to be consolidated from the date on which 
control is transferred out of the Group. The Group controls an entity when it is exposed to, or has rights to, variable returns 
from  its  involvement  with  the  entity  and  has  the  ability  to  affect  those  returns  through  its  power  over  the  entity.  Financial 
statements of subsidiaries are prepared for the same reporting year as the Company and where necessary, adjustments are 
made to the results of subsidiaries to bring their accounting policies into line with those used by the Group. The Group will 
continue  to  prepare  the  individual  statutory  financial  statements  of  subsidiary  companies  under  GAAP  applicable  in  their 
country of incorporation but adjustments have been made to the results and financial position of such companies to bring 
their accounting policies into line with those of the Group.    

All  intercompany  balances  and  transactions,  including  unrealised  profits  arising  from  inter-group  transactions,  have  been 
eliminated in full. Unrealised losses are eliminated in the same manner as unrealised gains except to the extent that there is 
evidence of impairment.  

Foreign currency translation 

The presentation and functional currency of the Company is US dollars ($). The presentation currency of the Group is US 
dollars ($). The determination of the USD as the functional currency of the Company reflects consideration of the primary 
and  secondary  indicators  as  set  out  in  IAS  21.  The  directors  considered  in  particular  the  currency  in  which  funds  from 
financing activities are generated (debt and equity) and the currency in which receipts from operating activities are usually 
retained. This  assessment  is  consistent  with  the  assessment  that  the  functional  currencies  of  the  main  subsidiary  trading 
entities  are  USD.  The  Company  Financial  Statements  are  presented  in  US  dollars.  Results  and  cash  flows  of  non-dollar 
denominated  undertakings  are  translated  into  dollars  at  the  actual  exchange  rates  at  the  transaction  dates  or  average 
exchange rates for the year where this is a reasonable approximation. 

The related statements of financial position are translated at the rates of exchange ruling at the reporting date. Goodwill and 
fair  value  adjustments  arising  on  acquisition  of  a  foreign  operation  are  regarded  as  assets  and  liabilities  of  the  foreign 
operation, are expressed in the functional currency of the foreign operation and are recorded at the exchange rate at the 
date of the transaction, and subsequently retranslated at the applicable closing rates. Adjustments arising on translation of 
the results of non-dollar undertakings at average rates, and on the restatement of the opening net assets at closing rates, 
are recorded in the translation reserve within equity.

47Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Foreign currency translation (continued)

Transactions in currencies different to the functional currencies of operations are recorded at the rate of exchange ruling at 
the  date  of  the  transaction.  Monetary  assets  and  liabilities  denominated  in  foreign  currencies  are  retranslated  into  the 
functional currency at the rate of exchange at the reporting date. All translation differences, with the exception of translation 
differences on long-term intercompany balances in the Consolidated Financial Statements where repayment is not foreseen, 
are recorded in the Consolidated Statement of Profit and Loss. Translation differences on long-term intercompany balances, 
in  the  Consolidated  Financial  Statements,  where  repayment  is  not  foreseen  are  recorded  within  other  comprehensive 
income in the Statement of Comprehensive Income.   

On disposal of a foreign operation, accumulated currency translation differences, together with any exchange differences on 
foreign  currency  borrowings  that  provide  a  hedge  of  the  net  investment  are  recognised  in  the  Consolidated  Statement  of 
Profit and Loss as part of the overall gain or loss on disposal.  

The  principal  exchange  rates  used  for  the  translation  of  results,  cash  flows  and  statements  of  financial  position  into  US 
dollars were as follows:

Euro 1:$

Pound Sterling 1:$

Property, plant and equipment

Average

Year end

31 December 
2023

31 December 
2022

31 December 
2023

31 December 
2022

1.0795

1.2382

1.0512

1.2347

1.1039

1.2731

1.0705

1.2083

Items of property, plant and equipment are stated at cost less accumulated depreciation and any provisions for impairment 
losses. Depreciation is calculated to write off the original cost of property, plant and equipment less its estimated residual 
value over its expected useful life on a straight line basis. Residual values and useful lives of property, plant and equipment 
are reviewed and adjusted if appropriate at each reporting date. At present it is estimated that all items of property, plant and 
equipment  have  no  residual  value.  The  estimated  useful  lives  applied  in  determining  the  charge  to  depreciation  are  as 
follows:

Buildings

Computer equipment

Office furniture and fixtures

Laboratory equipment

Motor vehicles

Years

40

2-8

8

5

5

Leasehold improvements are amortised using the straight-line method over the estimated useful life of the asset or the lease 
term, whichever is shorter.

On disposal of property, plant and equipment the cost and related accumulated depreciation and impairments are removed 
from the financial statements and the net amount, less any proceeds, is taken to the Consolidated Statement of Profit and 
Loss. 

The  carrying  amounts  of  the  Group’s  property,  plant  and  equipment  are  reviewed  at  each  reporting  date  to  determine 
whether  there  is  any  indicator  of  impairment.  Where  such  an  indicator  exists  an  impairment  review  is  carried  out.  An 
impairment loss is recognised whenever the carrying amount of an asset or its cash-generating unit exceeds its recoverable 
amount. Impairment losses are recognised in the Consolidated Statement of Profit and Loss.

Subsequent costs are included in an asset’s carrying amount or recognised as a separate asset, as appropriate, only when 
it is probable that future economic benefits associated with the item will flow to the Group and the cost of the replaced item 
can be measured reliably. All other repair and maintenance costs are charged to the Consolidated Statement of Profit and 
Loss during the financial period in which they are incurred. 

48Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Right-of-use assets and lease liabilities 

ICON determines if an arrangement is a lease at inception and recognises the rights and obligations on the Consolidated 
Statements of Financial Position as right-of-use (ROU) assets with corresponding lease liabilities. 

The right-of-use assets comprise the initial measurement of the corresponding lease liability, plus lease payments made at 
or  before  the  commencement  day  and  any  initial  direct  costs,  less  any  lease  incentives  received. They  are  subsequently 
measured at cost less accumulated depreciation and impairment losses. Right-of-use assets are depreciated over the lease 
term. 

The  right-of-use  assets  are  presented  as  a  separate  line  in  the  Consolidated  Statement  of  Financial  Position. The  Group 
applies  IAS  36  to  determine  whether  a  right-of-use  asset  is  impaired  and  accounts  for  any  identified  impairment  loss  as 
described in the ‘Property, Plant and Equipment’ policy.

Lease  liabilities  are  recognised  based  on  the  present  value  of  future  minimum  lease  payments  over  the  lease  term  at 
commencement date or date of transition with the interest element of the finance lease charged to financing expense. As 
most of ICON's leases do not provide an implicit rate, the discount rate used is based on the Group's incremental borrowing 
rate derived from the rate of traded corporate bonds available at the commencement date adjusted for country risk, liquidity 
and lease term.

Current lease liabilities are included in accrued and other liabilities in the Consolidated Statement of Financial Position and 
non-current lease liabilities are presented as a separate line. The lease liability is subsequently measured by increasing the 
carrying  amount  to  reflect  interest  on  the  lease  liability  (using  the  effective  interest  method)  and  by  reducing  the  carrying 
amount to reflect the lease payments made.

Lease  terms  may  also  include  options  to  extend  or  terminate.  Such  options  are  actively  reviewed  and  adjustments  to  the 
ROU asset and lease liability are made when it is reasonably certain the option will be exercised. 

The Group accounts for lease and non-lease components separately with the exception of motor vehicle leases for which 
lease  and  non-lease  components  are  accounted  as  a  single  lease  component.  Lease  components  are  reflected  in  the 
Consolidated  Statements  of  Financial  Position  and  non-lease  components  expensed  directly  to  the  Consolidated 
Statements of Profit and Loss. 

The Group has elected to account for short-term leases using the practical expedient. Instead of recognising a right-of-use 
asset and lease liability, the payments in relation to these are recognised as an expense in the Consolidated Statement of 
Profit and Loss on a straight-line basis over the lease term.

In some cases, ICON enters into sublease agreements and becomes both a lessee and a lessor for the same underlying 
asset.  When  the  Group  is  an  intermediate  lessor,  it  accounts  for  the  head  lease  and  the  sub-lease  as  two  separate 
contracts.  Subleases  are  accounted  for  in  the  same  way  as  other  leases.  The  sub-lease  is  classified  as  a  finance  or 
operating lease by reference to the right-of-use asset arising from the head lease.

Business combinations

Business  combinations  are  accounted  for  using  the  acquisition  method  when  control  is  transferred  to  the  Group.  The  
consideration transferred is measured at fair value, as are the identifiable assets acquired and liabilities assumed. Where a 
business combination agreement provides for an adjustment to the cost of the acquisition which is contingent upon future 
events, the amount of the estimated adjustment is recognised on the acquisition date at the acquisition date fair value of this 
contingent consideration. The accounting treatment of any changes to this estimate in subsequent periods will depend on 
the  classification  of  the  contingent  consideration.  If  the  contingent  consideration  is  classified  as  equity  it  shall  not  be  re-
measured and the settlement shall be accounted for within equity. If the contingent consideration is classified as a liability 
any  adjustments  to  the  assessment  of  contingent  consideration  determined  as  at  acquisition  date  will  be  accounted  for 
through the Consolidated Statement of Profit and Loss, as the liability is measured at fair value at each reporting date.  

The  assets,  liabilities  and  contingent  liabilities  of  businesses  acquired  are  measured  at  their  fair  values  at  the  date  of 
acquisition. In the case of a business combination which is completed in stages, the fair values of the identifiable assets, 
liabilities and contingent liabilities are re-determined at the date of each transaction until control is obtained. When the initial 
accounting  for  a  business  combination  is  determined  provisionally,  any  subsequent  adjustments  to  the  provisional  values 
allocated to the identifiable assets, liabilities and contingent liabilities are made within twelve months of the acquisition date 
and presented as adjustments to the original acquisition accounting. Acquisition costs are expensed as incurred.

49Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Goodwill

The Group measures goodwill at the acquisition date as the fair value of the consideration transferred plus the recognised 
amount of any non controlling interests in the acquiree, if the business combination is achieved in stages, the fair value of 
the  pre-existing  equity  interest  in  the  acquiree,  less  the  net  recognised  amount  (generally  fair  value)  of  the  identifiable 
assets  acquired  and  liabilities  assumed.  Goodwill  on  the  acquisition  of  subsidiaries  is  included  in  ‘intangible  assets  – 
goodwill and other’.

At  the  acquisition  date,  any  goodwill  acquired  is  allocated  to  the  cash-generating  units  expected  to  benefit  from  the 
combination's  synergies.  Impairment  is  determined  by  assessing  the  recoverable  amount  of  the  cash-generating  unit  to 
which the goodwill relates. Where goodwill forms part of a cash-generating unit and part of the operation within that unit is 
disposed of, the goodwill associated with the operation disposed of is included in the carrying amount of the operation when 
determining  the  gain  or  loss  on  disposal  of  the  operation.  Goodwill  disposed  of  in  this  circumstance  is  measured  on  the 
basis of the relative values of the operation disposed of and the proportion of the cash-generating unit retained.

Following initial recognition, goodwill is measured at cost less any accumulated impairment losses. Goodwill is reviewed for 
impairment  annually  or  more  frequently  if  events  or  changes  in  circumstances  indicate  that  the  carrying  value  may  be 
impaired. Impairment losses in respect of goodwill are not reversed.

Intangible assets 

Other intangible assets are stated at cost less accumulated amortisation and impairment losses. Useful lives of intangibles 
are reviewed and adjusted if appropriate at each reporting date. Amortisation is charged to the Consolidated Statement of 
Profit and Loss on a straight-line basis over the estimated useful lives of intangible assets, currently estimated as follows:

Computer software
Customer relationships
Order backlog
Tradenames
Technology asset 
Non-compete arrangements
Patient database

Years
2-8
16-23
3 
3 
5 
5 
7 

The  Group  assesses  at  the  end  of  each  reporting  period  whether  there  is  objective  evidence  that  an  intangible  asset  is 
impaired.  An  intangible  asset  is  impaired  and  impairment  losses  are  incurred  only  if  there  is  objective  evidence  of 
impairment as a result of one or more events that occur after the initial recognition of the intangible asset (a 'loss event') and 
that  loss  event  (or  events)  has  an  impact  on  the  estimated  future  cash  flows  of  the  intangible  asset  that  can  be  reliably 
estimated.  

Impairment  losses  in  respect  of  intangible  assets  are  reversed  if  there  has  been  a  change  in  the  estimates  used  to 
determine recoverable amount.  Impairment losses are reversed only to the extent that the carrying amount of the intangible 
asset does not exceed the carrying value that would have been determined, net of amortisation, if no impairment loss had 
been recognised. 

Inventories

Inventories, which comprise laboratory inventories, are stated at the lower of cost and net realisable value. Cost is based on 
the  first-in,  first-out  principle  and  includes  all  expenditure  incurred  in  acquiring  the  inventories  and  bringing  them  to  their 
present location and condition. Cost in the case of raw materials comprises the purchase price and attributable costs, less 
trade discounts. Net realisable value is the estimated selling price in the ordinary course of business, less selling expenses.   

Accounts payable

Trade and other payables are presented as current liabilities unless payment is not due within 12 months after the reporting 
period. They are recognised initially at fair value and subsequently measured at amortised cost using the effective interest 
rate method.

50 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Government grants

Government  grants  received  that  compensate  the  Group  for  the  cost  of  an  asset  are  recognised  in  the  Consolidated 
Statement of Financial Position initially as deferred income when there is reasonable assurance that it will be received and 
that the Group will comply with the conditions attaching to it. Such grants are recognised in the Consolidated Statement of 
Profit  and  Loss  over  the  useful  economic  life  of  the  asset  which  is  consistent  with  the  depreciation  policy  of  the  relevant 
asset.

Grants that compensate the Group for expenses incurred are recognised in the Consolidated Statement of Profit and Loss 
in the same periods in which the expenditure to which they relate is charged. 

Under grant agreements, amounts received may become repayable in full or in part should certain circumstances specified 
within the grant agreements occur, including downsizing by the Group, disposing of the related assets, ceasing to carry on 
its  business  or  the  appointment  of  a  receiver  over  any  of  its  assets.  The  Group  has  not  recognised  any  such  loss 
contingency having assessed as remote the likelihood of these events arising. 

Provisions

A  provision  is  recognised  in  the  Consolidated  Statement  of  Financial  Position  when  the  Group  has  a  present  or  legal  or 
constructive obligation as a result of a past event, and it is probable that an outflow of economic benefits will be required to 
settle  the  obligation.  If  the  effect  of  the  time  value  of  money  is  material,  provisions  are  determined  by  discounting  the 
expected future cash flows at a pre-tax rate that reflects the time value of money and, where appropriate, the risks specific 
to the liability. Where discounting is used, the increase in the provision due to the passage of time is recognised as a finance 
cost.  

A provision for restructuring is recognised when the Group has approved a detailed and formal restructuring plan, and the 
restructuring has either commenced or has been announced publicly. Future operating costs are not provided for.

Financial Instruments

Financial assets and financial liabilities are recognised on the Consolidated Balance Sheet when the Group becomes party 
to the contractual provisions of the instrument.

Financial assets are recognised and derecognised on a trade date basis, being the date the Group commits to purchase or 
sell the asset under a contract. 

Financial assets and liabilities are offset and presented on a net basis in the Consolidated Balance Sheet, only if the Group 
holds an enforceable legal right of set off for such amounts and there is an intention to settle on a net basis or to realise an 
asset  and  settle  the  liability  simultaneously.  In  all  other  instances  they  are  presented  gross  in  the  Consolidated  Balance 
Sheet.

At initial recognition, the Group measures a financial asset at its fair value plus, in the case of a financial asset not at fair 
value  through  profit  or  loss  (FVPL),  transaction  costs  that  are  directly  attributable  to  the  acquisition  of  the  financial  asset. 
Transaction costs of financial assets carried at FVPL are expensed in profit or loss. 

For  assets  measured  at  fair  value,  gains  and  losses  will  either  be  recorded  in  profit  or  loss  or  OCI.  The  classification 
depends  on  the  entity's  business  model  for  managing  financial  assets  and  the  contractual  terms  of  the  cash  flows.  For 
investments  in  equity  instruments  that  are  not  held  for  trading,  this  will  depend  on  whether  the  Group  has  made  an 
irrevocable  election  at  the  time  of  initial  recognition  to  account  for  the  equity  investment  at  fair  value  through  other 
comprehensive income (FVOCI). 

Subsequent  measurement  of  debt  instruments  depends  on  the  Group's  business  model  for  managing  the  asset  and  the 
cash flow characteristics of the asset.  There are three measurement categories into which the Group classifies its financial 
instruments:

•

Amortised  cost:  Assets  that  are  held  for  collection  of  contractual  cash  flows  where  those  cash  flows  represent 
solely  payments  of  principal  and  interest  are  measured  at  amortised  cost.  Interest  income  from  these  financial 
assets  is  included  in  finance  income  using  the  effective  interest  rate  method.  Any  gain  or  loss  arising  on 
derecognition  is  recognised  directly  in  profit  or  loss  and  presented  in  other  gains/(losses)  together  with  foreign 
exchange gains and losses.  

51Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Financial Instruments (continued)

•

•

FVOCI: Assets that are held for collection of contractual cash flows and for selling the financial assets, where the 
assets' cash flows represent solely payments of principal and interest, are measured at FVOCI. Movements in the 
carrying amount are taken through OCI, except for the recognition of impairment losses. When the financial asset 
is derecognised, the cumulative gain or loss previously recognised in OCI is reclassified from equity to profit or loss 
and recognised in other gains/(losses). Interest income from these financial assets is included in finance income 
using the effective interest rate method.  

FVPL: Assets that do not meet the criteria for amortised cost or FVOCI are measured at FVPL. A gain or loss on a 
debt investment that is subsequently measured at FVPL is recognised in profit or loss. 

The Group assesses on a forward-looking basis the expected credit losses associated with its debt instruments carried at 
amortised  cost. The  impairment  methodology  applied  depends  on  whether  there  has  been  a  significant  increase  in  credit 
risk.  

The Group reclassifies debt investments when and only when its business model for managing those assets changes.  

(a) 

Cash and cash equivalents 

Cash and cash equivalents include cash and highly liquid investments with original maturities of three months or less and 
are stated at fair value on initial recognition followed by amortised cost, which approximates fair value. 

(b) 

Trade receivables 

Trade  receivables  are  amounts  due  from  customers  for  services  performed  in  the  ordinary  course  of  business.  Trade 
receivables  are  recognised  initially  at  the  amount  of  consideration  that  is  unconditional  unless  they  contain  significant 
financing components. The amount of consideration that is unconditional approximates to fair value. The Group holds the 
trade  receivables  with  the  objective  to  collect  the  contractual  cash  flows  and  therefore  measures  them  subsequently  at 
amortised cost using the effective interest method.

Where  the  Group  enters  into  arrangements  to  sell  certain  trade  receivables,  such  arrangements  are  accounted  for  in 
accordance with IFRS 9, Financial Instruments (“IFRS 9”).  The underlying trade receivables are derecognised to the extent 
that substantially all of the risks and rewards of ownership of the trade receivables are transferred, under the terms of the 
arrangements. Cash proceeds received from such sales are included in operating cash flows.

(c) 

Interest bearing loans and borrowings 

Borrowings are initially recognised at fair value, net of transaction costs incurred. Borrowings are subsequently measured at 
amortised  cost.  Subsequent  to  initial  recognition,  current  and  non-current  interest  bearing  loans  and  borrowings  are 
measured at amortised cost with any difference between cost and redemption value being recognised in the Consolidated 
Statement  of  Profit  and  Loss  over  the  period  of  the  borrowings  on  an  effective  interest  rate  basis.  Fees  paid  on  the 
establishment of loan facilities are recognised as transaction costs of the loan to the extent that it is probable that some or 
all of the facility will be drawn down. In this case, the fee is deferred until draw down will occur. Where there is no evidence 
that it is probable that some or all of the facility will be drawn down, the fee is capitalised as a prepayment and amortised 
over the period of the facility to which it relates.  

Borrowings are classified as current liabilities unless the Group has an unconditional right to defer settlement of the liability 
for at least 12 months after the reporting date.

Borrowings are removed from the Consolidated Statement of Financial Position when the obligation specified in the contract 
is  discharged,  cancelled  or  expired.  The  difference  between  the  carrying  amount  of  a  financial  liability  that  has  been 
extinguished  or  transferred  to  another  party  and  the  consideration  paid,  including  any  non-cash  assets  transferred  or 
liabilities assumed, is recognised in profit or loss as other income or finance costs. 

(d) 

Equity instruments

The  Group  entered  into  subscription  agreements  with  a  number  of  funds.  The  Group  subsequently  measures  all  equity 
investments, including fund subscriptions, at FVPL. Changes in the fair value of equity investments and fund subscriptions 
measured  at  FVPL  are  recognised  in  the  Consolidated  Statement  of  Profit  and  Loss.  Dividends  or  interest  from  such 
investments continue to be recognised in the Consolidated Statement of Profit and Loss when the Group’s right to receive 
payments is established. 

52Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Financial instruments  (continued)

(e) 

Current financial assets

The  Group  classifies  short  term  investments  as  current  financial  assets.  Short-term  investments  comprise  highly  liquid 
investments with maturities of greater than three months. Current financial assets are subsequently measured at fair value 
through OCI. 

(f) 

Impairment of financial assets

The Group's financial assets measured at amortised cost, the most significant of which are trade receivables and unbilled 
receivables, are subject to IFRS 9's expected credit loss model. 

For trade receivables and unbilled revenue, the Group applies the simplified approach permitted by IFRS 9, which requires 
expected lifetime losses to be recognised from initial recognition of the receivables. See notes 17 and 26 for further details. 
The expected credit losses on these financial assets are estimated based on the Group’s historical credit loss experience, 
adjusted for factors that are specific to the debtors, general economic conditions and an assessment of both the current, as 
well as the forecast direction of conditions, at the reporting date.

The Group writes off a financial asset when there is information indicating that the debtor is in severe financial difficulty and 
there  is  no  realistic  prospect  of  recovery,  e.g.  when  the  debtor  has  been  placed  under  liquidation  or  has  entered  into 
bankruptcy  proceedings.  Financial  assets  written  off  may  still  be  subject  to  enforcement  activities  under  the  Group’s 
recovery procedures, taking into account legal advice where appropriate. Any recoveries made are recognised in profit or 
loss.

(g) 

Derivative financial instruments and hedging

Derivatives  are  initially  recognised  at  fair  value  on  the  date  a  derivative  contract  is  entered  into  and  are  subsequently 
remeasured  to  their  fair  value  at  the  end  of  each  reporting  period.  The  accounting  for  subsequent  changes  in  fair  value 
depends on whether the derivative is designated as a hedging instrument, and if so, the nature of the item being hedged. 

The Group designates certain derivatives as either: 

•
•

•

hedges of the fair value of recognised assets or liabilities or a firm commitment (fair value hedges)
hedges of a particular risk associated with the cash flows of recognised assets and liabilities and highly probable 
forecast transactions (cash flow hedges), or 
hedges of a net investment in a foreign operation (net investment hedges).  

At inception of the hedge relationship, the Group documents the economic relationship between hedging instruments and 
hedged items including whether changes in the cash flows of the hedging instruments are expected to offset changes in the 
cash  flows  of  hedged  items. The  Group  documents  its  risk  management  objective  and  strategy  for  undertaking  its  hedge 
transactions.  

The  fair  value  of  derivative  financial  instruments  designated  in  hedge  relationships  are  disclosed  in  note  26  –  Financial 
instruments. Movements in the hedging reserve are shown in shareholders' equity. The full fair value of a hedging derivative 
is classified as a non-current asset or liability when the remaining maturity of the hedged item is more than 12 months. It is 
classified as a current asset or liability when the remaining maturity of the hedged item is less than 12 months.   

Cash flow hedges that qualify for hedge accounting 

The  effective  portion  of  changes  in  the  fair  value  of  derivatives  that  are  designated  and  qualify  as  cash  flow  hedges  is 
recognised  in  the  cash  flow  hedge  reserve  within  equity.  The  gain  or  loss  relating  to  the  ineffective  portion  is  recognised 
immediately in profit or loss, within other gains/(losses).  

53Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Financial Instruments (continued)

When  a  hedging  instrument  expires  or  is  sold  or  terminated,  or  when  a  hedge  no  longer  meets  the  criteria  for  hedge 
accounting, any cumulative deferred gain or loss and deferred costs of hedging in equity at that time remains in equity until 
the forecast transaction occurs.  

Changes in the fair value of any derivative instrument that does not qualify for hedge accounting are recognised immediately 
in profit or loss.  

During the year ended 31 December 2022, the Group entered into two interest rate cap agreements ("2022 Caps") and an 
interest  rate  swap  agreement  ("2022  Swap")  to  limit  its  exposure  to  changes  in  the  variable  interest  rate  on  its  Senior 
Secured  Credit  Facilities.  The  interest  rate  caps  and  swap  are  accounted  for  as  cash  flow  hedges  and  were  considered 
effective hedges on application of the provisions of IFRS 9. The effective portion of the hedges is recorded as a movement 
within Other Reserves for the years ended 31 December 2023 and 31 December 2022.

Fair value hierarchy

The  Group  reports  using  the  fair  value  hierarchy  in  relation  to  its  assets  and  liabilities  which  are  measured  at  fair  value 
expect for those which are exempt as defined under IFRS 13, Fair Value Measurement. The fair value hierarchy categorises 
the inputs to valuation techniques to measure fair value into three levels:

•
•

•

Level 1:  Inputs are based upon unadjusted quoted prices for identical instruments traded in active markets.
Level 2: Inputs are based upon quoted prices for similar instruments in active markets, quoted prices for identical 
or similar instruments in markets that are not active and model-based valuation techniques for which all significant 
assumptions are observable in the market or can be corroborated by observable market data for substantially the 
full term of the assets or liabilities.
Level  3:  Inputs  are  generally  unobservable  and  typically  reflect  management’s  estimates  of  assumptions  that 
market participants would use in pricing the asset or liability.

Investments in subsidiaries - Company

Investments in subsidiary undertakings are stated at cost less any accumulated impairment and are reviewed for impairment 
if there are indicators that the carrying value may not be recoverable.  

Intercompany  loans  receivable  and  payable  are  initially  recognised  at  fair  value.  These  are  subsequently  measured  at 
amortised cost, less any loss allowance, calculated on an expected credit loss basis. 

Share capital

Ordinary shares are classified as equity.  Incremental costs directly attributable to the issue of new shares or options are 
shown in equity as a deduction, net of tax, from the proceeds. 

Where  ordinary  shares  are  re-purchased  by  the  Company  they  are  cancelled  and  the  nominal  value  of  the  shares  is 
transferred to other undenominated capital within equity.

Equity Method Investments

The Company’s investments that are not consolidated are accounted for under the equity method if the Company exercises 
significant influence that is considered to be greater than minor. The Company records its pro rata share of the earnings/
losses of these investments in Share of equity method investments in the Consolidated Statements of Profit and Loss. The 
Company  reviews  these  for  impairment  whenever  events  or  changes  in  circumstances  indicate  that  the  carrying  amounts 
may not be recoverable.

54Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Employee benefits

(a) Pension and other post-employment benefits

Certain  companies  within  the  Group  operate  defined  contribution  pension  plans. A  defined  contribution  plan  is  a  pension 
plan  under  which  the  Group  pays  fixed  contributions  into  a  separate  entity.  The  Group  has  no  legal  or  constructive 
obligations to pay further contributions if the fund does not hold sufficient assets to pay all employees the benefits relating to 
employee  service  in  the  current  and  prior  periods.  Contributions  to  defined  contribution  pension  plans  are  expensed  as 
incurred.

The  Group  operates  defined  benefit  pension  plans  for  certain  of  its  United  Kingdom  and  Swiss  employees  through 
subsidiary  companies. A  defined  benefit  plan  is  a  pension  plan  that  is  not  a  defined  contribution  plan.  Typically,  defined 
benefit plans define the amount of pension benefit that an employee will receive on retirement, usually dependent on one or 
more factors such as age, years of service and compensation. Obligations for contributions to defined benefit  pension plans 
are  recognised  as  an  expense  in  the  Consolidated  Statement  of  Profit  and  Loss  as  service  is  received  from  the  relevant 
employees.

The Group’s net obligation in respect of the defined benefit pension plans is calculated separately by estimating the amount 
of  future  benefit  that  employees  have  earned  in  return  for  their  service  in  the  current  and  prior  periods.  This  benefit  is 
discounted to determine its present value, and the fair value of plan assets deducted. The discount rate used in respect of 
the UK scheme is determined by the UK corporate bond yields at the reporting date. The discount rate used in respect of 
the Swiss schemes is determined by the Swiss corporate bond yields at the reporting date. The calculation is performed by 
a qualified actuary using the projected unit credit method. The net finance income/cost are recorded in operating costs in the 
Consolidated  Statement  of  Profit  and  Loss.  When  benefits  of  a  plan  are  improved,  the  portion  of  the  increased  benefit 
relating to the past service by employees is recognised as an expense in the Consolidated Statement of Profit and Loss on 
a  straight  line  basis  over  the  average  period  until  the  benefits  become  vested.  To  the  extent  that  the  benefits  vest 
immediately, the expense is recognised immediately in the Consolidated Statement of Profit and Loss. 

(b) Share-based payments

Share-based payments comprise options to acquire ordinary shares in the Company, Restricted Share Units ('RSUs') and  
and Performance Share Units ('PSUs') in the form of ordinary share entitlements after a certain period of time. These are 
awarded to certain key employees and Directors of the Group based on service conditions such as term of employment and 
individual performance. The fair value of options, RSUs and PSUs granted is recognised as an employee expense with a 
corresponding  increase  in  equity.  The  fair  value  is  measured  at  grant  date  and  spread  over  the  period  during  which  the 
Directors  and  other  employees  become  unconditionally  entitled  to  the  options,  RSUs  or  PSUs.  The  fair  value  of  options 
granted is measured using a model taking into account the terms and conditions upon which the options were granted. The 
fair value of RSUs and PSUs is equal to the market price of a share at date of grant. The total amount to be expensed is 
determined by reference to the fair value of the options, RSUs or PSUs granted. The amount recognised as an expense is 
adjusted to reflect the actual number of share options, RSUs or PSUs that vest. 

Forfeitures  are  estimated  on  the  date  of  grant  and  revised  if  actual  or  expected  forfeiture  activity  differs  materially  from 
original estimates. 

Share-based  payment  expense  is  recognised  over  the  requisite  service  period  for  awards  of  equity  instruments  to 
employees based on the grant date fair value of those awards expected to ultimately vest.  

Replacement awards

In  connection  with  the  completion  of  the  Merger,  the  Company  issued  replacement  awards  to  the  holders  of  PRA  equity 
awards  on  1  July  2021.  An  exchange  of  share-based  compensation  awards  in  a  business  combination  is  treated  as  a 
modification  under  IFRS  2.  The  replacement  awards  and  the  original  acquiree  awards  are  measured  at  fair  value  at  the 
acquisition date and calculated using the fair-value-based measurement principles in IFRS 2. Amounts attributable to pre-
combination vesting are accounted for as part of the consideration transferred for the acquiree. Amounts attributable to post-
combination vesting are accounted for separate from the business combination and are recognised as compensation cost in 
the post-combination period.

(c) Share-based payments – Company

The Company operates a number of share-based payment plans the details of which are presented in note 12 Share-based 
Payments to the Consolidated Financial Statements. The share-based payment expense associated with the share-based 
payment plans is recognised by the entity which receives services in exchange for the share-based compensation. 

55Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Employee benefits (continued)

The  Statement  of  Profit  and  Loss  of  the  Company  is  charged  with  the  expense  related  to  the  services  received  by  the 
Company. The remaining portions of the share-based payments represent a contribution to Company’s subsidiaries and are 
added to the carrying amount of those investments. Under an agreement, with certain subsidiaries, on the date of exercise 
the Company is paid an amount equal to the fair value of the ordinary shares issued that is in excess of the award exercise 
price with such amount reducing the Company’s investment in its subsidiaries. The net effect of the grant date fair value of 
the Company’s share-based compensation to employees of the Company’s subsidiaries and recharges received from those 
subsidiaries is presented as a movement in financial fixed assets (see note 2 Investment in subsidiaries, to the Company 
only financial statements).

Revenue Recognition

The Company primarily earns revenues by providing a number of different services to its customers. These services, which 
are integral elements of the clinical development process, include clinical trials management, consulting, contract staffing, 
data  services  and  laboratory  services.  These  services,  which  are  described  below,  can  be  purchased  collectively  or 
individually as part of a clinical trial contract. There is not significant variability in how economic factors affect these services. 
Contracts range in duration from a number of months to several years. 

Revenue Recognition - Clinical trial service revenue

Under IFRS 15 Revenue from Contracts with Customers ('IFRS 15'), a clinical trial service is a single performance obligation 
satisfied  over  time  i.e.  the  full  service  obligation  in  respect  of  a  clinical  trial  (including  those  services  performed  by 
investigators  and  other  parties)  is  considered  a  single  performance  obligation.  Promises  offered  to  the  customer  are  not 
distinct within the context of the contract. ICON is the contract principal in respect of both direct services and in the use of 
third parties (principally investigator services) that support the clinical research project. The transaction price is determined 
by  reference  to  the  contract  or  change  order  value  (total  service  revenue  and  pass-through/reimbursable  expenses) 
adjusted  downwards  to  reflect  a  realisable  contract  value.  Revenue  is  recognised  as  the  single  performance  obligation  is 
satisfied.  The  progress  towards  completion  for  clinical  service  contracts  is  measured  based  on  an  input  measure  being 
project costs incurred as a proportion of total project costs (inclusive of third-party costs) at each reporting period.

Revenue Recognition - Contracting services revenue

The  Company  has  availed  of  the  practical  expedient  which  results  in  recognition  of  revenue  on  a  right  to  invoice  basis. 
Application  of  the  practical  expedient  reflects  the  right  to  consideration  from  the  customer  in  an  amount  that  corresponds 
directly  with  the  value  to  the  customer  of  the  performance  completion  to  date.  This  reflects  hours  performed  by  contract 
staff. 

Revenue Recognition - Consulting services revenue

Consulting  services  contracts  represent  a  single  performance  obligation  satisfied  over  time.  The  transaction  price  is 
determined  by  reference  to  contract  or  change  order  value.  Revenue  is  recognised  as  the  performance  obligation  is 
satisfied. The progress towards completion for consulting contracts is measured based on total project inputs (time) at each 
reporting period as a percentage of forecasted total project inputs. 

Revenue Recognition - Laboratory services revenue

Revenue is recognised when, or as, obligations under the terms of a contract are satisfied, which occurs when control of the 
products  or  services  are  transferred  to  the  customer.  Revenue  for  laboratory  services  is  measured  as  the  amount  of 
consideration  we  expect  to  receive  in  exchange  for  transferring  products  or  services.  Where  contracts  with  customers 
contain  multiple  performance  obligations,  the  transaction  price  is  allocated  to  each  performance  obligation  based  on  the 
estimated relative selling price of the promised good or service. Service revenue is recognised over time as the services are 
delivered  to  the  customer  based  on  the  extent  of  progress  towards  completion  of  the  performance  obligation.  The 
determination of the methodology to measure progress requires judgement and is based on the nature of services provided. 
This requires an assessment of the transfer of value to the customer. The right to invoice measure of progress is generally 
related to rate per unit contracts, as the extent of progress towards completion is measured based on discrete service or 
time-based increments, such as samples tested or labour hours incurred. Revenue is recorded in the amount invoiced since 
those amounts corresponds to the value of the Company's performance and the transfer of value to the customer.

56 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Revenue Recognition (continued)

Revenue Recognition - Data services revenue

The Company provides data reports and analytics to customers based on agreed-upon specifications, including the timing of 
delivery, which is typically either weekly, monthly, or quarterly. If a customer requests more than one type of data report or 
series of data reports within a contract, each distinct type of data report is a separate performance obligation. The contracts 
provide for the Company to be compensated for the value of each deliverable. The transaction price is determined using list 
prices,  discount  agreements,  if  any,  and  negotiations  with  the  customers,  and  generally  includes  any  out-of-pocket 
expenses. Typically, the Company bills in advance of services being provided with the amount being recorded as unearned 
revenue.

When  multiple  performance  obligations  exist,  the  transaction  price  is  allocated  to  performance  obligations  on  a  relative 
standalone selling price basis. In cases where the Company contracts to provide a series of data reports, or in some cases 
data,  the  Company  recognises  revenue  over  time  using  the  “units  delivered”  output  method  as  the  data  or  reports  are 
delivered.  Expense  reimbursements  are  recorded  to  revenue  as  the  expenses  are  incurred  as  they  relate  directly  to  the 
services performed.

Certain  arrangements  include  upfront  customisation  or  consultative  services  for  customers.  These  arrangements  often 
include  payments  based  on  the  achievement  of  certain  contractual  milestones.  Under  these  arrangements,  the  Company 
contracts  with  a  customer  to  carry  out  a  specific  study,  ultimately  resulting  in  delivery  of  a  custom  report  or  data  product. 
These  arrangements  are  a  single  performance  obligation  given  the  integrated  nature  of  the  service  being  provided.  The 
Company  typically  recognises  revenue  under  these  contracts  over  time,  using  an  output-based  measure,  generally  time 
elapsed,  to  measure  progress  and  transfer  of  control  of  the  performance  obligation  to  the  customer.  Expense 
reimbursements are recorded to revenue as the expenses are incurred as they relate directly to the service performed.

The Company enters into contracts with some of its larger data suppliers that involve non-monetary terms. The Company 
issues purchase credits to be used toward the data supplier's purchase of the Company's services based on the fair value of 
the data obtained. In exchange, the Company receives monetary discounts on the data received from the data suppliers. 
The  fair  value  of  the  revenue  earned  from  the  customer  purchases  is  recognised  as  services  are  delivered  as  described 
above. At the end of the contract year, any unused customer purchase credits may be forfeited or carried over to the next 
contract year based on the terms of the data supplier contract.

Commissions

Incremental costs of obtaining a contract are recognised as an asset on the Consolidated Statement of Financial Position in 
respect of those contracts that exceed one year. Where commission costs relate to contracts that are less than one year, the 
practical expedient is applied as the amortisation period of the asset which would arise on deferral would be one year  or 
less.

Reimbursable expenses

Reimbursable  expenses  comprise  investigator  payments  and  certain  other  costs  which  are  reimbursed  by  clients  under 
terms  specific  to  each  contract  to  the  investigators.  The  Company  includes  reimbursed  expenses  in  revenue  and  direct 
costs as the Company is primarily responsible for fulfilling the promise to provide the specified service, including integration 
of the related services into a combined output to the customer.

Direct costs

Direct  costs  consist  of  compensation,  associated  employee  benefits  and  share-based  payments  for  project-related 
employees and other direct project-related costs. 

Reimbursable  expenses  are  presented  within  direct  costs. This  presentation  is  to  align  the  presentation  of  costs  with  our 
assessment that our clinical trial service is a single performance obligation satisfied over time. Reimbursable expenses are 
recorded once the activity which forms the basis for the cost has occurred. Payments are made based on predetermined 
contractual arrangements. Timing of payments may differ from the timing of the expense.

Other operating expenses

Other  operating  expenses  consist  of  compensation,  associated  employee  benefits  and  share-based  payments  for  non-
project-related  employees  and  other  indirect  costs  associated  with  the  business.  Other  operating  expenses  also  include 
depreciation expense and the amortisation of intangible assets.

57Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Exceptional items

The  Company  has  used  the  term  “exceptional”  to  describe  certain  items  which,  in  management’s  view,  warrant  separate 
disclosure  by  virtue  of  their  size  or  incidence,  or  due  to  the  fact  that  certain  gains  or  losses  are  determined  to  be  non-
recurring  in  nature.  Exceptional  items  may  include  restructuring,  transaction  and  integration-related  expenses,  significant 
impairments, and material changes in estimates. Also see the replacement awards accounting policy described above.

Transaction and integration-related expenses
Transaction  and  integration-related  expenses  are  the  incremental  costs  directly  attributable  to  completion  and  integration 
activities  associated  with  the  Group’s  recent  acquisitions.  The  costs  consist  of  investment  banking  fees,  advisory  costs, 
professional  fees,  retention  agreements  with  employees,  accelerated  share-based  compensation  charges  and  ongoing 
integration activities. The Group accounts for these transaction and integration-related costs as expenses in the period in 
which the costs are incurred and the services are received.

Restructuring
Restructuring  charges  reflect  certain  one-time  and  associated  unavoidable  costs  arising  from  reorganisation  programmes 
announced by Group management. These programmes generally result in asset impairments and workforce reductions in 
order to optimise the Group’s structure and facilitate improved long-term performance. Impairment charges are taken when 
the value-in-use of the asset is less than the asset’s carrying value. Workforce related charges are taken when an approved 
reorganisation programme is communicated to the relevant employee groups.

Research and development credits

Research and development credits are available to the Group under the tax laws in certain jurisdictions, based on qualifying 
research and development spend as defined under those tax laws. Research and development credits may be recognised 
as  a  reduction  of  income  tax  expense.  However,  certain  tax  jurisdictions  provide  refundable  credits  that  are  not  wholly 
dependent  on  the  Group's  ongoing  income  tax  status  or  income  tax  position.  In  these  circumstances  the  benefit  of  these 
credits is not recorded as a reduction to income tax expense, but rather as a reduction of operating expenditure.

Financing income

Interest income is recognised in the Consolidated Statement of Profit and Loss as it accrues using the effective interest rate 
method and includes interest receivable on investments.

Financing expense

Financing  expense  comprises  interest  payable  on  borrowings  calculated  using  the  effective  interest  rate  method,  finance 
charges on leases, foreign exchange gains and losses on bank loans and gains and losses on hedging instruments that are 
recognised in the Consolidated Statement of Profit and Loss. 

Financing expense also includes fees paid on the establishment of loan facilities which are recognised as transaction costs 
of the loan to the extent that it is probable that some or all of the facility will be drawn down. These fees are deferred and 
recognised in the Statement of Financial Position and are then amortised to the Consolidated Statement of Profit and Loss 
over the term the facility is available to the Group. 

Income tax

Income tax expense in the Consolidated Statement of Profit and Loss represents the sum of income tax currently payable 
and deferred income tax.

Income tax currently payable is based on taxable profit for the year. Taxable profit differs from net profit as reported in the 
Consolidated Statement of Profit and Loss because it excludes items of income or expense that are taxable or deductible in 
other years and further excludes items that are not taxable or deductible. The Group’s liability for income tax is calculated 
using  rates  that  have  been  enacted  or  substantively  enacted  at  the  reporting  date.  Income  tax  is  recognised  in  the 
Consolidated Statement of Profit and Loss except to the extent that it relates to items recognised directly in equity.

Deferred income tax is provided, using the liability method, on all differences between the carrying amounts of assets and 
liabilities  for  financial  reporting  purposes  and  the  amounts  used  for  taxation  purposes  except  those  arising  from  non-
deductible  goodwill  or  on  initial  recognition  of  an  asset  or  liability  which  affects  neither  accounting  nor  taxable  profit.  
Deferred  income  tax  assets  and  liabilities  are  measured  at  the  tax  rates  that  are  expected  to  apply  in  the  year  when  the 
asset is expected to be realised or the liability to be settled.

58 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

1. Basis of preparation and statement of accounting policies (continued)

Income tax (continued)

Deferred tax assets are recognised for all deductible differences, carry forward of unused tax credits and unused tax losses, 
to the extent that it is probable that taxable profit will be available against which the deductible temporary differences and 
the carry forward of unused tax credits and unused tax losses can be utilised. The carrying amount of deferred income tax 
assets is reviewed at each reporting date and reduced to the extent that it is no longer probable that sufficient taxable profit 
would be available to allow all or part of the deferred income tax asset to be utilised.

The Group has determined that the global minimum top-up tax – which it is required to pay under Pillar Two legislation – is 
an income tax in scope of IAS 12. The Group has applied a temporary mandatory relief from deferred tax accounting for the 
impacts of the top-up tax and accounts for it as current tax when it is incurred.

Earnings per ordinary share

Basic earnings per share is computed by dividing the profit for the financial year attributable to ordinary shareholders of the 
Company by the weighted average number of ordinary shares outstanding during the financial period. 

Diluted  net  income  per  ordinary  share  is  computed  by  adjusting  the  weighted  average  number  of  ordinary  shares 
outstanding  during  the  period  for  all  potentially  dilutive  ordinary  shares  outstanding  during  the  period  and  adjusting  net 
income for any changes in income or loss that would result from the conversion of such potential ordinary shares. There is 
no difference in net income used for basic and diluted net income per ordinary share. 

Segment reporting

An operating segment is a component of the Group that engages in business activities from which it may earn revenues and 
incur expenses, including revenues and expenses that relate to transactions with any of the Group’s other components. The 
Group  determines  and  presents  operating  segments  based  on  the  information  that  internally  is  provided  to  the  Chief 
Executive Officer (CEO) and Chief Financial Officer (CFO) who together are considered the Group’s chief operating decision 
makers,  the  ‘CODM’.  An  operating  segment’s  operating  results  are  reviewed  regularly  by  the  CODM  to  make  decisions 
about resources to be allocated to the segment and assess its performance, and for which discrete financial information is 
available.

Segment results that are reported to the CODM include items directly attributable to a segment as well as those that can be 
allocated on a reasonable basis. Segment capital expenditure is the total cost incurred during the period to acquire property, 
plant and equipment and right-of-use assets.

Debt issuance costs

Debt issuance costs relating to the Group’s long-term debt are recorded as a direct reduction of long-term debt; these costs 
are deferred and amortised to interest expense using the effective interest method, over the respective terms of the related 
debt.  Debt  issuance  costs  relating  to  the  Group’s  revolving  credit  facilities  are  recorded  as  an  asset;  these  costs  are 
deferred  and  amortised  to  interest  expense  using  the  straight-line  method.  Early  repayment  of  debt  facilities  can  result  in 
modification of the debt and the acceleration of the amortisation of debt issuance costs.

59Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

2. Segmental information

The Company has the expertise and capability to conduct clinical trials in most major therapeutic areas on a global basis 
and has the operational flexibility to provide development services on a stand-alone basis or as part of an integrated "full-
service" solution. The Company has expanded through internal growth, together with a number of strategic acquisitions to 
enhance its expertise and capabilities in certain areas of the clinical development process.

The Company determines and presents operating segments based on the information that is internally provided to the chief 
operating decision maker, together the ('CODM') in accordance with IFRS 8 Operating Segments. The Company determined 
that the CODM was comprised of the Chief Executive Officer and the Chief Financial Officer.

The Company operates as one reportable segment, which is the provision of outsourced development services on a global 
basis to the pharmaceutical, biotechnology and medical devices industries. 

The Group’s listing for its shares is the NASDAQ market in the United States. Consequently, information reviewed by the 
chief operating decision makers is prepared in accordance with US generally accepted accounting principles (“US GAAP”) 
however, the information presented below is prepared in accordance with IFRS reporting standards. Reconciliations of the 
Group’s profit for the financial year and shareholders’ equity from US GAAP to IFRS are set out on pages 145 to 148 of this 
report.  

Revenues  are  allocated  to  individual  entities  based  on  where  the  work  is  performed  in  accordance  with  the  Company's 
global  transfer  pricing  model.  Revenues  and  income  from  operations  in  Ireland  are  a  function  of  our  global  contracting 
model and the Group’s transfer pricing model.

ICON  Ireland  acts  as  the  Group  entrepreneur  under  the  Company’s  global  transfer  pricing  model  given  its  role  in  the 
development and management of the Group, its ownership of key intellectual property and customer relationships, its key 
role in the mitigation of risks faced by the Group and its responsibility for maintaining the Company’s global network. ICON 
Ireland enters into the majority of the Company’s customer contracts.

ICON Ireland remunerates other operating entities in the Group on the basis of an arm’s length return for the services they 
perform in each of their local territories. The arm’s length return for each ICON entity is established to ensure that each of 
ICON Ireland and the ICON entities that are involved in the conduct of services for customers, earn an appropriate return 
having  regard  to  the  assets  owned,  risks  borne,  and  functions  performed  by  each  entity  from  these  intercompany 
transactions. The arm’s length return  is reviewed annually to ensure that it is market appropriate. The integration of entities 
acquired through the Merger into this global network and global transfer pricing model has been completed.

The geographic split of revenue disclosed for each region outside Ireland is the arm’s length revenue attributable to these 
entities. The residual revenues of the Group, once each ICON entity has been paid its respective intercompany service fee, 
generally fall to be retained by ICON Ireland. As such, revenues and income from operations in Ireland are a function of this 
global transfer pricing model and comprise revenues of the Group after deducting the arm’s length revenues attributable to 
the activities performed outside Ireland. 

There have been no changes to the overall basis of segmentation or the measurement basis for the segment results since 
the prior year.

Geographical segment information

Revenue 

Ireland 

Rest of Europe 

United States 

Rest of World 

Total

31 December
2023

31 December
2022

$’000

$’000

2,377,104   

1,984,567 

1,574,783   

1,618,350 

3,283,790   

3,566,610 

884,499   

563,859 

8,120,176   

7,733,386 

60 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

2. Segmental information (continued)

Property, plant and equipment and right-of-use assets

Ireland

Europe

United States

Rest of World

Total

3. Revenue

Revenue disaggregated by customer profile is as follows:

Top client

Clients 2-5

Clients 6-10

Clients 11-25

Other

Total revenue

31 December
2023

31 December
2022

$’000

$’000

50,851   

91,080   

51,654 

98,641 

110,575   

132,615 

46,728   

46,516 

299,234   

329,426 

31 December
2023

31 December
2022

$’000

$’000

721,309   

682,840 

1,453,508   

1,504,530 

1,188,943   

1,111,486 

1,743,539   

1,584,100 

3,012,877   

2,850,430 

8,120,176   

7,733,386 

Our  customers  have  similar  profiles  and  economic  characteristics,  and  therefore  have  similar  degrees  of  risk  and  growth 
opportunities. 

4. Financing income

Interest receivable

Total finance income

All of the above relate to items not at fair value through profit and loss.

5. Financing expense

Interest payable on borrowings

Interest on lease liabilities

Facility fees (including amortisation)

Other financing costs*

Total finance expense

31 December
2023

31 December
2022

$’000

5,014

5,014

$’000

2,345

2,345

31 December
2023

31 December
2022

$’000

311,019

4,172   

16,402

9,278   

$’000

209,189

4,470 

17,749

2,793 

340,871

234,201

*includes costs associated with the senior secured revolving loan facility.

The Company incurred interest costs from various financing arrangements during the years ended 31 December 2023 and  
31  December  2022  as  set  out  in  the  table  above.  These  costs  have  been  charged  in  the  financing  expense  line  of  the 
Consolidated Statement of Profit and Loss. All of the above relate to items not at fair value through profit and loss.

61 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

6. Profit before taxation

Profit before taxation is stated after charging the following:

Auditor's remuneration

Audit fees (1) 
Other assurance fees: audit related fees (2)
Other Non-audit fees: Tax compliance and the 
preparation of tax returns and refund claims

31 December 2023

31 December 2022

Statutory 
auditor

Affiliated 
firms

Total Statutory 
auditor

Affiliated 
firms

$’000

$’000

$’000

$’000

$’000

3,405   

59   

3,464   

317   

495   

137   

436   

454   

931   

4,361   
178   

214   

59   
116   

106   

Total

$’000

4,420 

294 

320 

Total audit, audit related and tax compliance fees

4,217   

632   

4,849   

4,753   

281   

5,034 

Other tax planning and consulting services (3)
Tax advice relating to integration of ICON and PRA (4)
Total non-audit service fee / tax advisory fees

249   
897   

1,146   

—   
—   

—   

249   

897   

749   
3,720   

1,146   

4,469   

430   
—   

430   

1,179 

3,720 

4,899 

Total fees
5,363   
(1) Audit fees include annual audit and quarterly review fees for ICON Plc.  
(2) Audit related fees principally consist of fees for assurance and related services, such as financial due diligence services, fees for the 

5,995   

9,222   

9,933 

632   

711   

audit of employee benefit plans, fees for pension reviews and audit fees of the Company's subsidiaries.

(3) Other tax planning and consulting services represents services across a number of areas including in relation to the Group's financing 

facilities and other ad hoc tax advisory and planning.

(4) Tax advice relating to the integration of ICON and PRA are fees directly related to the Merger and subsequent integration of PRA and 
are not expected to recur in future periods. These fees directly related to tax advice on the steps required to integrate and eliminate 
legal  entities  of  PRA  and  ICON  following  the  merger.  The  fees  also  included  detailed  transfer  pricing  advice  on  business  model 
integration.

Depreciation and amortisation 

Depreciation of property, plant and equipment (note 13)

Depreciation of right-of-use assets (note 27)

Amortisation of intangible assets (note 14)

Total depreciation and amortisation

Directors’ remuneration

Emoluments

Benefits under long-term incentive schemes

Gain on exercise of share options

Pension contributions (defined contribution)

31 December
2023

31 December
2022

$’000

48,158   

41,982   

537,792   

627,932   

$’000

48,692 

45,215 

518,656 

612,563 

31 December
2023

31 December
2022

$’000

3,532

5,304

13,009

125

$’000

3,730

7,130

3,771

125

Directors' remuneration disclosures as required by Section 305 of the Companies Act are set out above. Retirement benefits 
accrue  to  one  Director  (2022:  one  Director)  under  a  defined  contribution  scheme.  Further  details  regarding  Directors’ 
shareholdings, share options and compensation are shown in note 10 – Payroll and related benefits. Included in the benefits 
under  long-term  incentive  scheme  are  amounts  relating  to  share  entitlements,  the  calculation  of  which  was  based  on  the 
share-based payment charge calculated under IFRS 2 Share-Based Payments. 

62 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

7. Income tax expense

The components of the current and deferred tax expense for the years ended 31 December 2023 and 2022 were as follows:

Current tax expense

Current year 

- 

Ireland

-  Other

Deferred tax credit

31 December
2023

31 December
2022

$’000

$’000

80,427   

16,112   

96,539   

55,073 

132,612 

187,685 

Origination and reversal of temporary differences

(67,209)  

(119,671) 

Over provided in prior years

Current tax

Deferred tax

Over provided in prior years 

Total income tax expense in profit and loss

Tax recognised directly in equity

Deferred tax recognised directly in equity

Current tax recognised directly in equity

Total tax recognised in equity

Income tax recognised in other comprehensive income

Fair value of cash flow hedge

Tax on currency impact on long-term funding

Tax impact of pension contributions

Total income tax recognised in other comprehensive income

4,936   

(15,639)  

(10,703)  

18,627   

(13,045)  

(4,323)  

(17,368)  

301

(3,903)

—  

(3,602)

(3,602) 

1,102 

(2,500) 

65,514 

25,780 

(1,739) 

24,041 

—

7,211

754 

7,965

The  total  tax  expense  of  $18.6  million  and  $65.5  million  for  the  years  ended  31  December  2023  and  31  December  2022 
respectively,  reflects  tax  at  standard  rates  on  taxable  profits  in  the  jurisdictions  in  which  the  Group  operates,  foreign 
withholding tax and the availability of tax losses.

The deferred tax credit of $67.2 million for the year ended 31 December 2023 and the deferred tax credit of $119.7 million 
for  the  year  ended  31  December  2022,  relates  to  deferred  tax  arising  in  respect  of  net  operating  losses  and  temporary 
differences in property, plant and equipment, the timing of certain goodwill amortisation on US acquisitions and the timing of 
tax deductions available relating to the Group’s share-based compensation schemes. 

63 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

7. Income tax expense (continued)

A reconciliation of the expected tax expense, computed by applying the standard Irish tax rate to income before tax to the 
actual tax expense, is as follows:

Profit before tax

Irish standard tax rate

31 December
2023

31 December
2022

$’000

$’000

627,651 

571,799 

 12.5 %

 12.5 %

Taxes at Irish standard tax rate

78,456 

71,475 

Over provision in respect to prior years

Foreign and other income taxed at higher rates

Rate differential from amortisation of intangible assets

Effect of change in tax rates

(Decrease)/ increase in unrecognised tax benefits

Losses for which no benefit has been recognised

Research and development tax incentives

Impact of stock compensation

Investor tax expense on foreign subsidiaries earnings

Share of loss of associate already tax effected

Other

Tax expense on profit for the year

The net deferred tax asset at 31 December 2023 and 31 December 2022 was as follows:

Deferred taxation assets

Net operating losses carried forward

Accrued and other liabilities

Property, plant and equipment

Deferred revenue

Share-based payment

Other

Total deferred taxation assets

Less: offset against deferred tax liabilities

Deferred tax asset disclosed on Consolidated Statement of Financial Position

(10,703) 

46,481 

(71,223) 

3,154 

(54,347) 

(1,068) 

(3,868) 

(5,035) 

39,165 

— 

(2,385) 

18,627 

(2,500) 

52,463 

(59,330) 

(300) 

8,392 

(777) 

(2,608) 

520 

— 

392 

(2,213) 

65,514 

31 December
2023

31 December
2022

$’000

$’000

81,362   

84,748   

9,082   

23,748   

49,180   

15,783   

45,498 

66,753 

6,010 

66,566 

43,048 

17,748 

263,903   

245,623 

(158,674)  

(147,506) 

105,229   

98,117 

64 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

7. Income tax expense (continued)

Deferred taxation liabilities
Property, plant and equipment

Goodwill and related assets

Other intangible assets

Investments in foreign subsidiaries

Other 

Total deferred taxation liabilities

Less: offset against deferred tax assets

Deferred tax liability disclosed on Consolidated Statement of Financial Position

Net deferred taxation liability

31 December
2023

31 December
2022

$’000

$’000

7,547   

39,014   

10,927 

37,150 

950,055   

1,078,302 

52,408   

7,985   

1,587 

7,467 

1,057,009   

1,135,433 

(158,674)  

(147,506) 

898,335   

987,927 

(793,106)  

(889,810) 

The movement in temporary differences during the year ended 31 December 2023 was as follows:

Deferred taxation assets

Net operating loss carry forwards

Accrued and other liabilities

Property, plant and equipment

Share-based payment

Deferred revenue

Other

Total deferred taxation assets

Deferred taxation liabilities

Property, plant and equipment

Goodwill and related assets

Investments in Foreign subsidiaries

Other 

Other intangible assets 

Total deferred taxation liabilities

Net deferred taxation liability

1 January 
2023

Recognised 
in Income

Recognised 
in Other 
Comprehen
sive Income

Recognised 
in Equity

31 
December 
2023

$’000

$’000

$’000

$’000

$’000

45,498   

35,864   

66,753   

17,995   

6,010   

3,072   

43,048   

(6,563)  

66,566   

(42,818)  

—   

—   

—   

—   

—   

17,748   

245,623   

(1,958)  

5,592   

(357)  

(357)  

— 

— 

— 

13,045 

— 

— 

81,362 

84,748 

9,082 

49,530 

23,748 

15,433 

13,045 

263,903 

10,927   

37,150   

(3,380)  

1,864   

1,587

50,821

7,467   

1,686   

1,078,302   

(128,247)  

1,135,433   

(77,256)  

—   

—   

—

—   

—   

—   

— 

— 

—

(1,168) *  

7,547 

39,014 

52,408

7,985 

— 

950,055 

(1,168)   

1,057,009 

(889,810)  

82,848   

(357)  

14,213 

(793,106) 

* These adjustments relate to foreign currency translation on the deferred tax liabilities.

65 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

7. Income tax expense (continued)

The movement in temporary differences during the year ended 31 December 2022 was as follows:

Deferred taxation assets

Net operating loss carry forwards

Accrued and other liabilities 

Property, plant and equipment

Share-based payment

Deferred Revenue

Other

1 January 
2022

Recognised 
in Income

Recognised 
in Equity

31 December 
2022

$’000

$’000

$’000

$’000

43,451   

71,934   

5,619   

2,047   

(5,181)  

391   

— 

— 

— 

81,903   

(13,075)  

(25,780)   

62,871   

3,695   

4,330   

13,418   

— 

— 

45,498 

66,753 

6,010 

43,048 

66,566 

17,748 

Total deferred taxation assets

270,108   

1,295   

(25,780)   

245,623 

Deferred taxation liabilities

Property, plant and equipment

Goodwill on acquisition

Investments in Foreign subsidiaries

Other

Other intangible assets

Total deferred taxation liabilities

Net deferred taxation liability

19,606   

33,354   

10   

1,751   

(8,679)  

3,796   

1,577   

1,627   

— 

— 

— 

4,089 *  

10,927 

37,150 

1,587 

7,467 

1,193,897   

(115,595)  

— 

1,078,302 

1,248,618   

(117,274)  

4,089 

1,135,433 

(978,510)  

118,569   

(29,869)   

(889,810) 

* These adjustments relate to foreign currency translation on the deferred tax liabilities.

Unrecognised deferred tax assets

Deferred tax assets relating to the following net operating losses have not been recognised to the extent that it is considered 
unlikely that a benefit will be received in the future.  

At 31 December 2023, non-US subsidiaries had operating loss carry-forwards for income tax purposes that may be carried 
forward  indefinitely,  available  to  offset  against  future  taxable  income,  if  any,  of  approximately  $42.9  million  (31  December 
2022: $37.9 million). At 31 December 2023, non–US subsidiaries also had additional operating loss carry forwards of $12.9 
million which are due to expire between 2024 and 2030 and operating loss carry forwards of $0.03 million which are due to 
expire between 2031 and 2040.

In  total,  the  Company  has  unrecognised  deferred  tax  assets  of  $42.9  million  at  31  December  2023  and  $43.4  million  at 
31  December  2022.  The  Company  has  not  recognised  these  remaining  deferred  tax  assets  because  it  believes  that  it  is 
more likely than not that the losses and other deferred tax assets will not be utilised given their history of operating losses. 

Unrecognised deferred tax liabilities

The  Company  has  recognised  a  deferred  tax  liability  of  $52.4  million  (2022:  $1.6  million)  for  investments  in  foreign 
subsidiaries where the Company does not consider the earnings to be indefinitely reinvested. Given changes in various tax 
laws  during  2023,  the  group  has  taken  the  decision  to  repatriate  certain  excess  earnings  which  will  not  be  permanently 
reinvested  and  consequently  have  provided  for  the  relevant  tax  in  the  current  year.  For  the  deferred  tax  liability  not 
recognised  in  respect  of  temporary  differences  related  to  investments  in  foreign  subsidiaries  which  are  considered  to  be 
indefinitely  reinvested,  it  is  not  practicable  to  calculate  the  exact  unrecognised  deferred  tax  liability,  however,  it  is  not 
expected to be material as Ireland allows a tax credit in respect of distributions from foreign subsidiaries at the statutory tax 
rate  in  the  jurisdiction  of  the  subsidiary  so  that  no  material  tax  liability  would  be  expected  to  arise  in  Ireland  in  the  event 
these earnings were ever remitted. In addition, withholding taxes applicable to remittances from foreign subsidiaries would 
not be expected to be material given Ireland’s tax treaty network and the EU parent subsidiary directive.

The Group operates in a number of jurisdictions which have enacted new legislation to implement the global minimum top-
up tax. The Group expects to potentially be subject to the top-up tax in relation to certain jurisdictions where the statutory 
rate  is  below  15%. Additionally,  the  application  of  local  tax  laws  in  certain  jurisdictions,  particularly  with  regard  to  certain 
incentives, has typically resulted in effective tax rates of below 15%. This is expected to create future top-up tax liabilities in 
these jurisdictions. However, since the newly enacted tax legislation in Ireland is only effective from 1 January 2024, there is 
no current tax impact for the year ended 31 December 2023.

66 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

7. Income tax expense (continued)

The  Group  has  applied  a  temporary  mandatory  relief  from  deferred  tax  accounting  for  the  impacts  of  the  top-up  tax  and 
accounts for it as a current tax when it is incurred.

The application of the Pillar Two global minimum tax rules would have been reasonably estimated to increase the Group’s 
annual effective tax rate by around 1 to 2 percentage points.

8. Earnings per share

The following table sets forth the computation for basic and diluted net earnings per share for the years ended 31 December 
2023 and 31 December 2022:

31 December 2023

31 December 2022

Pre-
exceptional

Exceptional 
(Note 9)

Total 

Pre-
exceptional

Exceptional 
(Note 9)

Total 

Numerator ($'000)

Profit attributable to equity holders

684,387   

(75,363)  

609,024   

562,958   

(56,673)  

506,285 

Denominator (Number of shares)

Basic weighted average ordinary 
shares outstanding

Effect of dilutive potential ordinary 
shares

Diluted weighted average ordinary 
shares outstanding

  82,101,813    82,101,813    82,101,813    81,532,320    81,532,320    81,532,320 

637,626   

637,626   

637,626    1,004,506    1,004,506    1,004,506 

  82,739,439    82,739,439    82,739,439    82,536,826    82,536,826    82,536,826 

Earnings per Share ($ per share)

Basic earnings per ordinary share

Diluted earnings per ordinary share  

8.34   

8.27   

(0.92)  

(0.91)  

7.42   

7.36   

6.90   

6.81   

(0.70)  

(0.69)  

6.21 

6.13 

The Company had 165,129 anti-dilutive shares in issue at 31 December 2023 (31 December 2022: 46,973) comprised of 
165,129 options (31 December 2022: 23,486) and nil RSUs (31 December 2022: 23,487).

67 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

9. Exceptional items

Exceptional items are comprised of transaction and integration related, restructuring and financing expenses.

Transaction and integration related

Restructuring charges

Other operating expenses

Income tax expense

Exceptional items (net)

31 December 
2023

31 December 
2022

$'000

44,176   

45,390   

89,566   

$'000

39,695 

31,143 

70,838 

(14,203)  

(14,165) 

75,363   

56,673 

Transaction and integration related
In  the  years  ended  31  December  2023  and  31  December  2022,  the  Company  incurred  $44.2  million  and  $39.7  million, 
respectively, of merger-related expenses which were accounted for separately from the business combination and expensed 
as incurred within the “Other operating expenses” line item of the Consolidated Statement of Profit and Loss. These costs 
relate to professional fees, retention agreements and ongoing integration activities. 

Restructuring charges
A  restructuring  charge  of  $45.4  million  was  recognised  during  the  year  ended  31  December  2023  (2022:  $31.1  million) 
under a restructuring plan adopted following a review of operations and are included within the “Other operating expenses” 
line  item  of  the  Consolidated  Statement  of  Profit  and  Loss.  The  restructuring  program  aims  at  realigning  the  Company's 
workforce as well as reviewing its global footprint and optimising its locations to best fit the requirements of the Company. 
The  restructuring  program  resulted  in  a  charge  of  $34.1  million  (2022:  $2.7  million)  relating  to  workforce  reductions,  an 
impairment  of  ROU  assets  of  $8.7  million  (2022:  $24.5  million),  a  fixed  asset  impairment  of  $nil  (2022:  $4.0  million)  and 
other costs associated with the office consolidation program of $2.6 million (2022: $nil).

At 31 December 2023 and 31 December 2022 a total liability of $7.0 million and $6.0 million, respectively, was included in 
the Consolidated Statement of Financial Position relating to restructuring activities. At 31 December 2023, the total liability 
included  $3.0  million  from  facilities  related  liabilities,  of  which  $1.0  million  is  recorded  in  provisions  and  $2.0  million  is 
included within non-current provisions.The remaining provision of $4.0 million relates to workforce reduction and is included 
within provisions. 

Opening liability

Additional charges in the year

Utilisation

Ending liability

31 December 
2023

31 December 
2022

$'000

6,022   

36,704   

(35,727)  

6,999   

$'000

10,311 

4,364 

(8,653) 

6,022 

68 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits

Payroll costs

The aggregate payroll costs of employees of the Group for the year ended 31 December 2023 and 31 December 2022 were 
as follows:

Wages and salaries

Social welfare costs

Pension costs for defined contribution pension schemes

Pension costs for defined benefit pension schemes

Termination benefits

Share-based payment

Total charge to income

Re-measurement of post-employment benefit obligations

Total payroll and related benefit costs

Average employee numbers

31 December 
2023

31 December 
2022

Note

$’000

$’000

3,052,039   

2,952,242 

533,629   

115,266   

319   

34,080   

51,380   

579,714 

116,179 

744 

2,714 

55,790 

11  

11  

9  

12  

3,786,713   

3,707,383 

11  

(525)  

(13,265) 

3,786,188   

3,694,118 

The  average  number  of  employees,  including  executive  Directors,  employed  by  the  Group  during  the  year  ended 
31 December 2023 and 31 December 2022 was as follows: 

Marketing 

Administration

Clinical research

Laboratory

Total

Directors’ remuneration

Remuneration policy

31 December 
2023

31 December 
2022

556   

3,580   

33,458   

2,809   

40,403   

530 

3,560 

32,421 

2,653 

39,164 

The  Compensation  and  Organisation  Committee  seeks  to  achieve  the  following  goals  with  the  Company’s  executive 
compensation programmes: to attract, motivate and retain key executives and to reward executives for value creation. The 
Committee  seeks  to  foster  a  performance-oriented  environment  by  ensuring  that  a  significant  portion  of  each  executive’s 
cash and equity compensation is based on the achievement of performance targets that are important to the Company, its 
shareholders and other stakeholders.

The Company’s executive compensation program has three main elements: base salary, a bonus plan and equity incentives 
in  the  form  of  share  related  awards  granted  under  the  Company’s  equity  incentive  plans. All  elements  of  key  executives’ 
compensation are determined by the Compensation and Organisation Committee based on the achievement of the Group’s 
and  individual  performance  objectives.  Base  salary,  bonus  awards  and  Directors’  fees  were  determined  by  the 
Compensation and Organisation Committee in U.S. dollars, Euro or British pound sterling. 

Non-Executive Directors’ remuneration

Non-Executive Directors are remunerated by way of Directors’ fees and are also eligible for participation in the share equity 
incentive schemes. During 2023, each Non-Executive Director (excluding the Board Chair) was paid an annual retainer of 
$90,000 and additional fees for Board Committee service.

69 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits (continued)

Mr. Ciaran Murray’s Executive Chair term expired on 12 May 2018 and he transitioned to the role of Non-Executive Chair. 
The  current  arrangement  with  the  Chair  provides  for  payment  of  €330,000  (translated  at  average  rate  for  the  year: 
$356,235) annually.

Mr. Rónán Murphy was appointed as Lead Independent Director with effect from 1 January 2019 and receives an additional 
fee of $40,000 for this role.

Non-Executive Directors are not eligible for performance related bonuses and no pension contributions are made on their 
behalf. The Compensation and Organisation Committee sets non-Executive remuneration. 

Executive Directors’ and Key Executive Officers’ remuneration

Total cash  compensation is divided into a base salary  portion and a bonus incentive portion. The Committee targets total 
cash compensation with regard to healthcare/ biopharmaceutical companies of similar market capitalisation and peer CRO 
companies, adjusted upward or downward based on individual performance and experience and level of responsibility. The 
Compensation  and  Organisation  Committee  believes  that  the  higher  the  executive’s  level  of  responsibility  within  the 
Company, the greater the percentage of the executive’s compensation that should be tied to the Company’s performance. 
Target bonus incentive for executive officers range between 75% and 125% of salary with actual pay outs for 2023 ranging 
from 64% to 100%, of salary, based on Group and individual performance.  

A total bonus of $1.6 million was awarded to the following individuals; Dr. Steve Cutler, Chief Executive Officer ($1.2 million) 
and  Mr.  Brendan  Brennan,  Chief  Financial  Officer  ($0.4  million)  to  reflect  their  contribution  to  the  performance  of  the 
Company during 2023. These amounts were approved by the Compensation and Organisation Committee and will be paid 
during the year ended 31 December 2024. 

The  Company’s  executives  are  eligible  to  receive  equity  incentives,  including  stock  options,  Restricted  Share  Units  and 
Performance Share Units, granted under the Company’s equity incentive plans. If executives receive equity incentive grants, 
they are normally approved annually at the first scheduled meeting of the Committee in the fiscal year. The grant date and 
value  is  determined  by  the  Committee  and  the  number  of  units  granted  is  determined  based  on  the  closing  price  of  the 
Company's shares on the day of grant. Newly hired executives may receive sign-on grants. In addition, the Committee may, 
at  its  discretion,  issue  additional  equity  incentive  awards  to  executives  if  the  Committee  determines  such  awards  are 
necessary to ensure appropriate incentives are in place. The equity awards granted to each participant are determined by 
the Committee at the start of each year based on peer group data, advice from independent compensation consultants, and 
Committee judgment.

During 2023, Performance Share Units (“PSUs”) which were awarded subject to vesting in 2020 vested for Dr. Steve Cutler 
Chief Executive Officer in the amount of 22,404 from a potential grant of 22,404. The percentage granted reflects service 
and the Company's achievements of diluted non GAAP specified EPS targets over the three year period from 2020 - 2022.

During  2023,  Performance  Share  Units  (“PSUs”)  which  were  awarded  subject  to  vesting  in  2020  vested  for  Mr.  Brendan 
Brennan  Chief  Financial  Officer  in  the  amount  of  4,850  from  a  potential  grant  of  4,850.  The  percentage  granted  reflects 
service and the Company's achievements of diluted non GAAP specified EPS targets over the three year period from 2020 - 
2022.

All  executive  officers  are  eligible  to  participate  in  pension  plans.  The  Company’s  contributions  are  generally  a  fixed 
percentage of their annual compensation, supplementing contributions by the executive. The Company has the discretion to 
make additional contributions if deemed appropriate by the Committee. The Company’s contributions are determined at the 
peer group median of comparable Irish companies and peer CRO companies. Contributions to this plan are recorded as an 
expense in the Consolidated Statement of Profit and Loss. 

70Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits (continued)

The Directors, Executive Officers and Company Secretary have the following interests, all of which are beneficial, other than 
as stated, in the shares and share options of the Company or other Group companies at the following dates: 

Name

Ciaran Murray

Name of  company and 
description of shares

ICON plc

Interest at

Interest at

31 December 2023

31 December 2022

Number of 
shares

Options

Number of 
shares

Options

Ordinary Shares €0.06

19,343   

—   

1,680   

58,646 

Dr. Steve Cutler

ICON plc

Ordinary Shares €0.06

37,098   

222,001   

42,377   

208,885 

Brendan Brennan

ICON plc

Ordinary Shares €0.06

22,105   

32,952   

23,547   

53,105 

Rónán Murphy

ICON plc

Ordinary Shares €0.06

2,121   

8,084   

1,680   

9,622 

Dr. John Climax

ICON plc

Ordinary Shares €0.06

449,775   

23,255   

509,297   

33,255 

Joan Garahy

ICON plc

Ordinary Shares €0.06

2,121   

5,005   

1,680   

5,005 

Eugene McCague

ICON plc

Ordinary Shares €0.06

2,121   

5,005   

1,680   

5,005 

Julie O'Neill

ICON plc

Ordinary Shares €0.06

1,931   

—   

1,490   

Dr. Linda Grais

ICON plc

Ordinary Shares €0.06

4,435   

—   

3,994   

— 

— 

Diarmaid Cunningham

ICON plc

Ordinary Shares €0.06

7,980   

23,427   

7,456   

27,893 

71 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits (continued)

Further details regarding the above share options are as follows: 

Name

Dr. Steve Cutler

Brendan Brennan

Rónán Murphy

Dr. John Climax

Joan Garahy

Eugene McCague

Diarmaid Cunningham

Options

Exercise 
price

15,284   

$83.47 

29,613   

$115.11 

32,272   

$140.38 

42,386   

$159.33 

37,461   

$174.96 

35,869   

$231.68 

29,116   

$233.88 

1,760   

9,176   

$140.38 

$159.33 

8,842   

$174.96 

7,401   

$231.68 

5,773   

$233.88 

3,079   
5,005   

10,557   

7,693   

5,005   

5,005   

$90.03 

$125.74 

$65.60 

$90.03 

$125.74 

$125.74 

5,005   

$125.74 

1,103   

$140.38 

5,737   

$159.33 

5,528   

$174.96 

6,194   

$231.68 

4,865   

$233.88 

Grant date

3 March 2017

3 March 2018

3 March 2019

3 March 2020

3 March 2021

3 March 2022

3 March 2023

3 March 2019

3 March 2020

3 March 2021

3 March 2022

3 March 2023

19 May 2017

18 May 2018

20 May 2016

19 May 2017

18 May 2018

18 May 2018

18 May 2018

3 March 2019

3 March 2020

3 March 2021

3 March 2022

3 March 2023

Expiry date

3 March 2025

3 March 2026

3 March 2027

3 March 2028

3 March 2029

3 March 2030

3 March 2031

3 March 2027

3 March 2028

3 March 2029

3 March 2030

3 March 2031

19 May 2025

18 May 2026

20 May 2024

19 May 2025

18 May 2026

18 May 2026

18 May 2026

3 March 2027

3 March 2028

3 March 2029

3 March 2030

3 March 2031

72 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits (continued)

The  Directors,  Executive  Officer  and  Company  Secretary  held  the  following  Restricted  Share  Units  (“RSUs”)  and 
Performance Share Units (“PSUs”) awards as at 31 December 2023:

Name

Ciaran Murray

Dr. Steve Cutler

Brendan Brennan

Rónán Murphy

Dr. John Climax

Joan Garahy

Eugene McCague

Julie O'Neill

Dr. Linda Grais
Diarmaid Cunningham  

RSUs

1,389 

2,959 

3,018 

3,050 

3,019 

3,050 

3,050 

698 

622 

604 

624 

604 

606 

926 

926 

926 

926 

926 

926 

437 

521 

521 

509 

509 

510 

Award date

Vesting Date

PSUs(1)

Award Date

Vesting date

22 May 2023

22 May 2024

3 March 2021

3 March 2024  

10,354 

3 March 2021

3 March 2024

3 March 2022

3 March 2024  

10,565 

3 March 2022

3 March 2025

3 March 2023

3 March 2024  

10,675 

3 March 2023

3 March 2026

3 March 2022

3 March 2025

3 March 2023

3 March 2025

3 March 2023

3 March 2026

3 March 2021

3 March 2024  

3 March 2022

3 March 2024  

3 March 2023

3 March 2024  

2,444 

2,179 

2,116 

3 March 2021

3 March 2024

3 March 2022

3 March 2025

3 March 2023

3 March 2026

3 March 2022

3 March 2025

3 March 2023

3 March 2025

3 March 2023

3 March 2026

22 May 2023

22 May 2024

22 May 2023

22 May 2024

22 May 2023

22 May 2024

22 May 2023

22 May 2024

22 May 2023

22 May 2024

22 May 2023

22 May 2024

3 March 2021

3 March 2024  

3 March 2022

3 March 2024  

3 March 2022

3 March 2025  

1,528 

1,824 

1,783 

3 March 2021

3 March 2024

3 March 2022

3 March 2025

3 March 2023

3 March 2026

3 March 2023

3 March 2024

3 March 2023

3 March 2025

3 March 2023

3 March 2026

(1) Of  the  issued  PSUs,  performance  conditions  will  determine  how  many  vest.  If  performance  targets  are  exceeded, 
additional PSUs will be issued and will vest in accordance with the terms of the relevant PSU award. The PSUs vest 
based on service and specified EPS targets over the periods 2021 – 2023, 2022 – 2024 and 2023 - 2025. Depending 
on the actual amount of EPS from 2021 to 2025, up to a maximum of 38,333 additional PSUs may also be granted to 
Dr. Steve Cutler and Mr. Brendan Brennan.

Details of transactions entered into by the Directors, Executive Officers and Company Secretary in shares and share options 
of the Company during the year ended 31 December 2023 were as follows:

Share options exercised and sold

Name 

Dr. Steve Cutler

Brendan Brennan

Diarmaid Cunningham

Dr. John Climax

Rónán Murphy

Ciaran Murray

Number of Share 
Options

16,000   

25,926   

9,331   

10,000   

1,538   

41,646   

Average
Exercise
price

$79.06  

$110.61  

$120.06  

$68.39  

$90.03  

$71.95  

Average 
Sales 
price 

$265.46 

$267.79 

$255.21 

$200.80 

$275.28 

$222.78 

73 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits (continued)

Share options exercised and held

Name 

Ciaran Murray

Shares sold

Name 

Dr. John Climax

RSUs and PSU's vested 

Name 

Dr. Steve Cutler

Brendan Brennan

Ciaran Murray

Rónán Murphy

Dr. John Climax

Joan Garahy

Eugene McCague

Julie O'Neill

Diarmaid Cunningham

Dr. Linda Grais

Shares (vested RSUs and PSU's) sold

Name 

Dr. Steve Cutler
Brendan Brennan
Ciaran Murray
Rónán Murphy
Dr. John Climax
Joan Garahy
Eugene McCague
Julie O'Neill
Diarmaid Cunningham
Dr. Linda Grais

Number 
of Shares

Average 
Exercise
Price 

17,000   

$95.97 

Number 
of Shares

Average 
Sales
Price 

60,000   

$274.67 

Number 
of Shares

31,581   

6,864   

1,388   

925   

925   

925   

925   

925   

4,424   

925   

Number 
of Shares

36,860   
8,306   
725   
484   
447   
484   
484   
484   
3,900   
484   

Average 
Vest 
Price 

$233.88 

$233.88 

$212.78 

$212.78 

$212.78 

$212.78 

$212.78 

$212.78 

$233.88 

$212.78 

Average 
Sales 
Price 

$255.85 
$252.15 
$213.33 
$213.36 
$213.41 
$213.38 
$213.36 
$213.38 
$243.20 
$213.38 

The  price  the  Company’s  ordinary  shares  during  the  year  ended  31  December  2023  moved  in  the  range  of  $181.92  to 
$288.50  (year  ended  31  December  2022:  in  the  range  of  $173.90  to  $296.03).  The  closing  share  price  at  31  December 
2023 was $283.07 (at 31 December 2022: $194.25).

74 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits (continued)

Summary compensation table - Year ended 31 December 2023

Name

Year

Salary

Company 
pension 
contribution

Performance 
related 
compensation

All other 

compensation Subtotal

Share-
based
payments
***

Directors’ 
fees

Total
compensation

$’000

$’000

2023   —   

—   

$’000

—   

$’000

$’000

$’000

$’000

—   

—   

300   

356   

$’000

656 

2023   1,191   

125   

1,197   

31    2,544   

5,980   

44   

8,568 

2023  

587   

73   

381   

31    1,072   

1,103   

—   

2,175 

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

200   

159   

—   

—   

—   

—   

—   

—   

200   

90   

—   

—   

—   

—   

200   

200   

200   

200   

123   

123   

115   

103   

359 

290 

323 

323 

315 

303 

2023   1,778   

198   

1,578   

62    3,616   

8,583   

1,113   

13,312 

***Share-based payments is the IFRS 2 expense related to share options, RSUs and PSUs. The aggregate amount of the gains earned by 
the  Directors  on  the  exercise  of  share  options  during  the  financial  year  is  disclosed  in  Note  6  Profit  before  taxation  under  ‘Directors’ 
emoluments’.   

Ciaran 
Murray

Dr. Steve 
Cutler

Brendan 
Brennan

Rónán 
Murphy

2023   —   

2023   —   

Dr. John 
Climax
Joan Garahy 2023   —   

Eugene 
McCague

2023   —   

Julie O'Neill

2023   —   

2023   —   

Dr. Linda 
Grais
Total

75Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

10. Payroll and related benefits (continued)

Summary compensation table - Year ended 31 December 2022

Name

Year

Salary

Company 
pension 
contribution

Performance 
related 
compensation

All other 
compensation

Subtotal

Directors’ 
fees

Total
compensation

Share-
based
payments
***

$’000

$’000

2022   —   

—   

$’000

—   

$’000

$’000

$’000

$’000

—   

—   

267   

363   

$’000

630 

2022   1,168   

125   

1,173   

31    2,497   

7,504   

44   

10,045 

2022  

556   

70   

342   

30   

998   

1,385   

—   

2,383 

Ciaran 
Murray

Dr. Steve 
Cutler

Brendan 
Brennan

Rónán 
Murphy

2022   —   

Professor 
Hugh Brady*

Dr. John 
Climax

2022   —   

2022   —   

Joan Garahy 2022   —   

Professor 
William Hall*

Eugene 
McCague

2022   —   

2022   —   

Julie O'Neill

2022   —   

2022   —   

2022   —   

2022   —   

Mary 
Pendergast*

Colin 
Shannon**

Dr. Linda 
Grais
Total

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

—   

200   

150   

—   

—   

67   

54   

—   

—   

202   

90   

—   

—   

200   

123   

—   

—   

69   

58   

—   

—   

200   

125   

—   

—   

200   

110   

—   

—   

69   

54   

—   

—   

—   

85   

—   

—   

133   

98   

350 

121 

292 

323 

127 

325 

310 

123 

85 

231 

2022   1,724   

195   

1,515   

61    3,495    10,496   

1,354   

15,345 

* Professor Hugh Brady, Professor William Hall and Ms. Mary Pendergast resigned from the Board of Directors on 26 July 2022.

** Mr. Colin Shannon resigned from the Board of Directors on 9 December 2022.

***Share-based payments is the IFRS 2 expense related to share options, RSUs and PSUs. The aggregate amount of the gains earned by 
the  Directors  on  the  exercise  of  share  options  during  the  financial  year  is  disclosed  in  Note  6  Profit  before  taxation  under  ‘Directors’ 
emoluments’.

76 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11.  Retirement benefit obligations 

The Group operates a number of defined contribution schemes and defined benefit pension schemes. The Group accounts 
for pensions in accordance with IAS 19R Employee Benefits (“IAS 19R”).

(i)

Defined Contribution Schemes

Certain  employees  of  the  Group  are  eligible  to  participate  in  a  defined  contribution  or  profit  sharing  plans  (the  "Plans"). 
Participants  in  the  Plans  may  elect  to  defer  a  portion  of  their  pre-tax  earnings  into  a  pension  plan,  which  is  run  by  an 
independent  party.  The  Group  matches  each  participant's  contributions  up  to  certain  levels  of  the  participant's  annual 
compensation. Contributions to the plan are recorded as a remuneration expense in the Consolidated Statement of Profit 
and Loss. Contributions to Non-US Plans for the year ended 31 December 2023 and year ended 31 December 2022 were 
$74.9 million and $70.4 million respectively. 

The  Group's  United  States  operations  maintain  retirement  plans  (the  "U.S.  Plans")  that  qualify  as  deferred  salary 
arrangements  under  Section  401(k)  of  the  Internal  Revenue  Code.  Participants  in  the  U.S.  Plans  may  elect  to  defer  a 
portion  of  their  earnings,  up  to  the  Internal  Revenue  Service  annual  contribution  limit.  The  Group  matches  participant's 
contributions at varying amounts, subject to a maximum of 4.5% of the participant's annual compensation. Contributions to 
the  U.S.  Plans  are  recorded,  in  the  year  contributed,  as  an  expense  in  the  Consolidated  Statement  of  Profit  and  Loss. 
Contributions  for  the  year  ended  31  December  2023  and  year  ended  31  December  2022  were  $40.4  million  and  $45.8 
million respectively.

(ii)

Defined Benefit Plans

ICON Development Solutions Limited Pension Plan

One of the Group’s subsidiaries, ICON Development Solutions Limited, which was acquired by the Group in 2003, operates 
a defined benefit pension plan in the United Kingdom for certain employees, which is now closed to new members. 

The plan is managed externally and the related pension costs and liabilities are assessed in accordance with the advice of a 
professionally  qualified  actuary.  Plan  assets  at  31  December  2023  and  31  December  2022  consist  of  units  held  in 
independently administered funds.  

Financial assumptions

The following assumptions were used in determining the fair value of the plan assets and the present value of the projected 
benefit obligation at 31 December 2023:

Discount rate

Inflation rate

Future salary increases

31 December
2023

31 December
2022

 4.8 %

 3.0 %

 3.0 %

 4.9 %

 3.1 %

 3.6 %

A single discount rate is used which, when used to discount the projected benefit cashflows underlying a pension scheme 
with a 19 year duration, gives the same result as a full AA corporate bond yield curve. 

The following assumptions were used at the commencement of the year in determining the net periodic pension cost for the 
year ended 31 December 2023:

Discount rate

Future salary increases

31 December
2023

31 December
2022

 4.9 %

 3.6 %

 1.8 %

 3.7 %

77Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11. Retirement benefit obligations (continued)

Mortality assumptions

Assumptions regarding mortality experience are set based on actuarial advice in accordance with published statistics and 
experience.  The  mortality  assumptions  adopted  at  31  December  2023  are  111%/105%  of  the  standard  tables  S3PMA/
S3PFA_M, Year of Birth, no age rating for males and females, projected using CMI_2022  converging to 1.25% p.a.. These 
imply the following life expectancies, for persons retiring at age 65 (2022: 62):

Male retiring in 2023/2022

Female retiring in 2023/2022

Male retiring in 2048/2042

Female retiring in 2048/2042

Consolidated Financial Statements

Funding status

Projected benefit obligation

Fair value of plan assets

Retirement benefit plan net asset

31 December
2023

31 December
2022

23.4 years

24.4 years

24.8 years

26.2 years

25.8 years

25.8 years

27.3 years

27.8 years

31 December
2023

31 December
2022

$’000

$’000

(20,999)  

(19,558) 

27,320   

6,321   

26,050 

6,492 

Movement in the net benefit asset recognised in other non-current assets was as follows:

Present Value 
of Obligations

Fair Value of 
Plan Assets

At 1 January 2023

Current service costs

Interest (expense)/income

Re-measurements

Return on plan assets

Gain or loss from change in demographic assumptions

Gain or loss from change in financial assumptions

Experience gain or loss

Exchange differences

Contributions:

- Employers

- Plan participants

Benefit payments

At 31 December 2023

$’000

(19,558) 

(35) 

(975) 

(20,568) 

— 

470 

(382) 

239 

327 

(1,057) 

— 

(19) 

318 

299 

(20,999) 

$’000

26,050 

— 

1,301 

27,351 

Total

$’000

6,492 

(35) 

326 

6,783 

(1,133) 

(1,133) 

— 

— 

— 

(1,133) 

1,331 

70 

19 

(318) 

(229) 

27,320 

470 

(382) 

239 

(806) 

274 

70 

— 

— 

70 

6,321 

78 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11. Retirement benefit obligations (continued)

At 1 January 2022

Current service costs

Interest (expense)/income

Re-measurements

Return on plan assets

Gain or loss from change in demographic assumptions

Gain or loss from change in financial assumptions

Experience gain or loss

Exchange differences

Contributions:

- Employers

- Plan participants

Benefit payments

At 31 December 2022

Present Value 
of Obligations

Fair Value of 
Plan Assets

$’000

(41,813) 

(117) 

(672) 

$’000

36,198 

— 

580 

(42,602) 

36,778 

— 

27 

18,983 

(393) 

18,617 

3,932 

— 

(19) 

514 

495 

(19,558) 

(6,626) 

— 

— 

— 

(6,626) 

(3,677) 

70 

19 

(514) 

(425) 

26,050 

Total

$’000

(5,615) 

(117) 

(92) 

(5,824) 

(6,626) 

27 

18,983 

(393) 

11,991 

255 

70 

— 

— 

70 

6,492 

Re-measurements are recognised in the Consolidated Statement of Comprehensive Income as follows:

Return on plan assets (excl. amounts included in interest income/expense)

Gain or loss from change in demographic assumptions

Gain or loss from change in financial assumptions

Experience gain or loss

Comprehensive income at end of year

31 December
2023

31 December
2022

$’000

(1,133)  

470   

(382)  

239   

(806)

$’000

(6,626) 

27 

18,983 

(393) 

11,991

Defined benefit pension expense recognised in the Consolidated Statement of Profit and Loss was as follows:

Current service cost recognised in profit or loss

Net interest (income)/expense recognised in profit or loss

Expenses

Net periodic pension (credit)/cost

Plan Assets Fair Value

The fair value of plan assets at 31 December 2023 is analysed as follows:

Unit funds

31 December
2023

31 December
2022

$’000

35   

(326)  

63   
(228)  

$’000

117 

92 

— 

209 

31 December
2023

31 December
2022

$’000

27,320   

$’000

26,050 

79 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11. Retirement benefit obligations (continued)

The plan’s assets do not include any of the Group’s own financial instruments, nor any property occupied by, or other assets 
used by the Group.  

At 31 December 2023 the long-term expected rate of return on cash is determined by reference to traditional corporate bond 
rates  at  the  latest  reporting  date.  The  long-term  expected  returns  on  traditional  corporate  and  government  bonds  are 
determined by reference to corporate bond yields and gilt yields respectively at the reporting date. 

The underlying asset split of the funds at 31 December 2023 and 31 December 2022 was as follows:

Government Bonds

Diversified Bonds

31 December
2023

31 December
2022

 78 %

 22 %

 88 %

 12 %

The assets of the scheme are held on an investment platform with Mercer Limited which invests in a number of investment 
funds  with  MGI  and  Mercer  Sterling.  The  overall  investment  strategy  is  that  approximately  78%  of  investments  are  in 
government  bonds  and  index  linked  gilts  and  22%  in  diversified  bonds.  There  is  no  self-investment  in  employer  related 
assets.

Sensitivity assumptions

The sensitivity of the defined benefit obligation to changes in the weighted principal assumptions is:

Discount Rate

Rate of Inflation

Rate of Salary Growth

Rate of Mortality

Change in Assumption
Increase of 0.5% p.a.

Increase of 0.25% p.a.

Increase of 0.25% p.a.

Increase in life expectancy of 1 year

Change in Liabilities
Decrease by 8.5%

Increase by 1.0%

Increase by 0.1%

Increase by 2.7%

The sensitivities shown above are approximate. Each sensitivity considers one change in isolation. 

The  plan  typically  exposes  the  Company  to  actuarial  risks  such  as  investment  risk,  interest  rate  risk,  salary  growth  risk, 
mortality risk and longevity risk. A decrease in bond yields, a rise in inflation or an increase in life expectancy would result in 
an increase to plan liabilities. This would impact the Statement of Financial Position and may give rise to increased charges 
in future Statements of Profit and Loss. This effect would be partially offset by an increase in the value of the plan’s bond 
holdings,  and  in  qualifying  death  in  service  insurance  policies  that  cover  mortality  risk.  Additionally,  caps  on  inflationary 
increases are in place to protect the plan against extreme inflation. 

Cash flows and Maturity Profiles

The Group expects to contribute approximately $0.1 million of normal contribution to the defined benefit pension scheme for 
the  year  ended  31  December  2024.  The  average  duration  of  the  defined  benefit  obligation  at  the  period  ending 
31 December 2023 is 19 years.

80Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11. Retirement benefit obligations (continued)

Aptiv Solutions Pension Plan

On 7 May 2014, the Company acquired 100% of the common stock of Aptiv Solutions (“Aptiv”). The acquisition of Aptiv was 
accounted for as a business combination in accordance with IFRS 3 Business Combinations. The Company has a defined 
benefit  plan  covering  its  employees  in  Switzerland  as  mandated  by  the  Swiss  government.  Benefits  are  based  on  the 
employee’s years of service and compensation. The plan is managed externally and the related pension costs and liabilities 
are  assessed  in  accordance  with  the  advice  of  a  professionally  qualified  actuary.  Plan  assets  at 31  December  2023  and 
31 December 2022 consist of units held in independently administered funds. 

Funding status

Projected benefit obligation

Fair value of plan assets

Retirement benefit plan net obligation

31 December
2023

31 December
2022

$’000

(6,441)  

6,261   

(180)  

$’000

(5,806) 

5,681 

(125) 

Movement in the net benefit obligation recognised in non-current other liabilities was as follows:

At 1 January 2023

Current service costs

Interest (expense)/income

Past service cost

Re-measurements

Gain or loss from change in financial assumptions

Gain or loss from change in experience

Exchange differences

Contributions:

- Employers

- Plan participants

Benefit payments

At 31 December 2023

Present Value of 
Obligations

Fair Value of 
Plan Assets

$’000

(5,806) 

(109) 

(136) 

13 

$’000

5,681 

— 

133 

— 

(6,038) 

5,814 

(506) 

(5) 

(511) 

(578) 

— 

(93) 

779 

686 

(6,441) 

— 

356 

356 

562 

215 

93 

(779) 

(471) 

6,261 

Total

$’000

(125) 

(109) 

(3) 

13 

(224) 

(506) 

351 

(155) 

(16) 

215 

— 

— 

215 

(180) 

81 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11. Retirement benefit obligations (continued)

At 1 January 2022

Current service costs

Interest (expense)/income

Past service cost

Re-measurements

Gain or loss from change in financial assumptions

Gain or loss from change in experience 

Exchange differences

Contributions:

- Employers

- Plan participants

Benefit payments

At 31 December 2022

Present Value of 
Obligations
$’000

Fair Value of 
Plan Assets
$’000

(7,644) 

(146) 

(30) 

23 

6,965 

— 

29 

— 

(7,797) 

6,994 

1,479 

48 

1,527 

148 

— 

(82) 

398 

316 

(5,806) 

— 

(985) 

(985) 

(126) 

114 

82 

(398) 

(202) 

5,681 

Total
$’000

(679) 

(146) 

(1) 

23 

(803) 

1,479 

(937) 

542 

22 

114 

— 

— 

114 

(125) 

82 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11. Retirement benefit obligations (continued)

PRA Switzerland AG Pension Plan

On 1 July 2021, the Company completed the Acquisition of PRA. PRA Switzerland AG, a subsidiary of the Company has a 
defined benefit plan covering its employees in Switzerland as mandated by the Swiss government. Benefits are based on 
the  employee's  years  of  service  and  compensation.  The  plan  is  managed  externally  and  the  related  pension  costs  and 
liabilities are assessed in accordance with the advice of a professionally qualified actuary. Plan assets at 31 December 2023 
and 31 December 2022 consist of units held in independently administered funds. 

Movement  in  the  net  benefit  obligation  recognised  in  non-current  other  liabilities  was  as  follows: 

Funding status

Projected benefit obligation

Fair value of plan assets

Retirement benefit plan net obligation

At 1 January 2023

Current service cost

Interest (expense)/income

Past service cost

Re-measurements

Gain or loss from change in financial assumptions

Gain or loss from change in experience

Exchange differences 

Contributions:

- Employers

- Plan participants

Benefit payments

Settlement

At 31 December 2023

31 December
2023

31 December
2022

$’000

(7,747)  

5,529   

(2,218)  

$’000

(5,345) 

4,059 

(1,286) 

Total

$’000

(1,286) 

(417) 

(31) 

— 

Present Value of 
Obligations

Fair Value of 
Plan Assets

$’000

(5,345)  

(417)  

(132)  

—   

$’000

4,059   

—   

101   

—   

(5,894)  

4,160   

(1,734) 

(574)  

(137)  

(711)  

(644)  

—   

(456)  

(795)  

753   

(498)  

(52)  

—   

(52)  

467   

456   

456   

795   

(753)  

954   

(7,747)  

5,529   

(626) 

(137) 

(763) 

(177) 

456 

— 

— 

— 

456 

(2,218) 

83 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

11. Retirement benefit obligations (continued)

Present Value of 
Obligations

Fair Value of 
Plan Assets

$’000

(4,990)  

(404)  

(20)  

$’000

3,017   

—   

12   

Total

$’000

(1,973) 

(404) 

(8) 

(5,414)  

3,029   

(2,385) 

1,293   

(667)  

626   

49   

—   

(325)  

(1,125)  

844   

(606)  

(5,345)  

106   

—   

106   

(7)  

325   

325   

1,125   
(844)  

931   

4,059   

1,399 

(667) 

732 

42 

325 

— 

— 
— 

325 

(1,286) 

At 1 January 2022

Current service cost

Interest (expense)/income

Re-measurements

Gain or loss from change in financial assumptions

Gain or loss from change in experience

Exchange differences 

Contributions: 

- Employers

- Plan participants

Benefit payments

Settlement

At 31 December 2022

12. Share-based payments

Share Options

On  21  July  2008  the  Company  adopted  the  Employee  Share  Option  Plan  2008  (the  “2008  Employee  Plan”)  pursuant  to 
which  the  Compensation  and  Organisation  Committee  of  the  Company’s  Board  of  Directors  may  grant  options  to  any 
employee,  or  any  director  holding  a  salaried  office  or  employment  with  the  Company  or  a  Subsidiary  for  the  purchase  of 
ordinary  shares.  On  the  same  date,  the  Company  also  adopted  the  Consultants  Share  Option  Plan  2008  (the  “2008 
Consultants Plan”), pursuant to which the Compensation and Organisation Committee of the Company’s Board of Directors 
may grant options to any consultant, adviser or non-Executive Director retained by the Company or any Subsidiary for the 
purchase of ordinary shares. 

On 14 February 2017 both the 2008 Employee Plan and the 2008 Consultants Plan (together the “2008 Option Plans”) were 
amended and restated in order to increase the number of options that can be issued under the 2008 Consultants Plan from 
0.4 million to 1.0 million and to extend the date for options to be granted under the 2008 Option Plans.

An aggregate of 6.0 million ordinary shares have been reserved under the 2008 Employee Plan, as reduced by any shares 
issued  or  to  be  issued  pursuant  to  options  granted  under  the  2008  Consultants  Plan,  under  which  a  limit  of  1.0  million 
shares applies. Further, the maximum number of ordinary shares with respect to which options may be granted under the 
2008  Employee  Option  Plan,  during  any  calendar  year  to  any  employee  shall  be  0.4  million  ordinary  shares. There  is  no 
individual limit under the 2008 Consultants Plan. No options may be granted under the 2008 Option Plans after 14 February 
2027.

Each option granted under the 2008 Employees Plan or the 2008 Consultants Plan (together the “2008 Option plans”) will 
be evidenced by a Stock Option Agreement between the optionee and the Company. The exercise price will be specified in 
each  Stock  Option Agreement,  however,  option  prices  will  not  be  less  than  100%  of  the  fair  market  value  of  an  ordinary 
share on the date the option is granted. Share option awards are granted with an exercise price equal to the market price of 
the Company's shares at date of grant. Share options typically vest over a period of five years from date of grant and expire 
eight years from date of grant. 

84 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

12. Share-based payments (continued)

PRA Equity Incentive Plans

The  following  represents  the  legacy  PRA  equity  incentive  plans,  which  still  have  equity  outstanding  but  have  been 
terminated as of 1 July 2021, as to grants of future awards.

Pursuant to the Merger Agreement, effective on 1 July 2021, each outstanding stock option and restricted stock unit under 
the PRA Plans was assumed by the Company and converted into a stock option or Restricted Share Unit exercisable for or 
payable in Ordinary Shares based on the ratio of the average trading price per Ordinary Share for the ten days prior to 1 
July 2021, and the corresponding value of the Merger consideration for each PRA Share. Accordingly, the plans as detailed 
below were assumed by the Company.

PRA Health Sciences, Inc. 2020 Stock Incentive Plan (the "2020 Plan”), 2018 Stock Incentive Plan (the "2018 Plan") and 
2014 Omnibus Incentive Plan (the "2014 Plan") were amended and restated and assumed by the Company effective as of 1 
July 2021. 

The 2020 Stock Incentive Plan (“the 2020 Plan”), was approved by the PRA stockholders at their annual meeting on 18 May 
2020. The  2020  Plan  allowed  for  the  issuance  of  stock  options,  stock  appreciation  rights,  restricted  shares  and  restricted 
stock units, other stock-based awards, and performance compensation awards as permitted by applicable laws. The 2020 
Plan authorised the issuance of 2,500,000 shares of common stock plus all shares that remained available under the prior 
plan on 18 May 2020.

The 2018 Stock Incentive Plan (the “2018 Plan”), was approved by the PRA stockholders at their annual meeting on 31 May 
2018. The  2018  Plan  allowed  for  the  issuance  of  stock  options,  stock  appreciation  rights,  restricted  shares  and  restricted 
stock units, other stock-based awards, and performance compensation awards as permitted by applicable laws. The 2018 
Plan authorised the issuance of 2,000,000 shares of common stock plus all shares that remained available under the 2014 
Plan on 31 May 2018 (which included shares carried over from the 2013 Plan).

On 23 November 2014, the PRA Health Sciences, Inc. Board of Directors approved the formation of the 2014 Plan for Key 
PRA Employees. The 2014 Plan allowed for the issuance of stock options, stock appreciation rights, restricted shares and 
restricted stock units, other stock-based awards, and performance compensation awards as permitted by applicable laws.

Overall

Share option awards are granted with an exercise price equal to the market price of the Company’s ordinary shares at date 
of grant. Share options typically vest over a period of five years from date of grant and expire eight to ten years from date of 
grant. Share options granted to non-executive directors during 2018 vest over 12 months and expire eight years from the 
date of grant. The maximum contractual term of options outstanding at 31 December 2023 is ten years.   

Set out below is a summary of the total number of options outstanding and number of options available to grant under each 
plan as at 31 December 2023:

2008 Stock Option Plans 

Total

Outstanding

Available to Grant

31 December
2023

31 December
2022

31 December
2023

31 December
2022

902,806   

1,378,119   

2,787,687   

2,854,964 

902,806   

1,378,119   

2,787,687   

2,854,964 

85 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

12. Share-based payments (continued)

The total number of share options outstanding and exercisable at 31 December 2023 is as follows:

Number of
Options

Weighted Average
Exercise Price

Outstanding at 31 December 2021

1,695,460   

$110.38 

Granted

Exercised

Cancelled/expired

108,643   
(348,286)  
(77,698)  

$229.94 

$102.87 

$143.08 

Outstanding at 31 December 2022

1,378,119   

$119.86 

Granted

Exercised

Cancelled/expired

82,472   
(535,705)  
(22,080)  

$232.48 

$95.12 

$196.20 

Outstanding at 31 December 2023

902,806   

$142.96 

Exercisable at 31 December 2023

654,386   

$119.67 

The weighted average intrinsic value of the Company’s shares on date of exercise of share options during the year ended 
31 December 2023 was $150.09 (31 December 2022: $120.36). 

At  31  December  2023,  the  range  of  exercise  prices  and  weighted  average  remaining  contractual  life  of  outstanding  and 
exercisable options was as follows:

Range Exercise
Price

$20.83 - 96.15

$103.81 - 121.68

$125.74 - 147.26

$159.33 - 233.88

$20.83 - 233.88

Options Outstanding
Number of
Shares

Weighted
Average
Remaining
Contractual Life

Weighted 
Average Exercise 
Price

Options Exercisable
Number of
Shares

Weighted 
Average Exercise 
Price

201,306 

132,964 

249,194 

319,342 

902,806 

2.29  

4.54  

4.45  

5.69  

4.42  

—   

—   

—   

—   

201,306   

132,964   

233,371   

86,745   

— 

— 

— 

— 

142.96   

654,386   

119.67 

Share option fair values 2023

The weighted average grant date fair value of share options granted by the Company during the year ended 31 December 
2023 was $85.12 based on the following grants:

Grant Date

3 March 23

22 May 23

Number of Shares Weighted Average 
Exercise Price

76,066   

6,406   

82,472   

$233.88 

$215.91 

$232.48 

86 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

12. Share-based payments (continued)

Share option fair values 2022

The weighted average grant date fair value of share options granted by the Company during the year ended 31 December 
2022 was $65.72 based on the following grants:

Grant Date

3 March 22

21 May 22

Number of Shares Weighted Average 
Exercise Price

96,525   

12,118   

108,643   

$231.68 

$216.10 

$229.94 

Fair value of share options – Assumptions

The fair values of options granted during the year ended 31 December 2023 were calculated using the Black Scholes option 
pricing-model (2022: binomial option pricing-model) utilising the following assumptions:

Weighted average grant date fair value
Expected volatility (1)
Expected dividend yield
Risk-free rate (2)
Expected life

Rate of forced early exercise

Minimum gain for voluntary early exercise

Rate of voluntary early exercise at minimum gain

31 December 2023 31 December 2022

Annual Awards

Annual Awards

$85.12 

 33.0 %

— 

 4.18 %

5.0 years

$65.72 

 28.0 %

— 

1.1% - 2.8%

5.0 years

n/a

n/a

10% per annum

25% of exercise 
price

n/a

75% per annum

(1) Expected volatility has been determined based upon the volatility of the Company’s share price over a period which is commensurate 
with the expected term of the options granted.
(2) Risk-free rate is dependent on the grant date and term of the award.

Restricted Share Units and Performance Share Units

On 23 April 2013 the Company adopted the 2013 Employees Restricted Share Unit and Performance Share Unit Plan (the 
“2013 RSU Plan”) pursuant to which the Compensation and Organisation Committee of the Company’s Board of Directors 
may  select  any  employee,  or  any  Director  holding  a  salaried  office  or  employment  with  the  Company,  or  a  Subsidiary  to 
receive an award under the plan. On 11 May 2015 the 2013 RSU Plan was amended and restated in order to increase the 
number  of  shares  that  can  be  issued  under  the  RSU  Plan  by  2.5  million  shares. Accordingly,  an  aggregate  of  4.1  million 
ordinary shares have been reserved for issuance under the 2013 RSU Plan. The shares are awarded at zero cost and vest 
over a service period. Awards under the 2013 RSU Plan may be settled in cash or shares at the option of the Company. No 
awards may be granted under the 2013 RSU Plan after 11 May 2025.

On  30  April  2019  the  Company  approved  the  2019  Consultants  and  Directors  Restricted  Share  Unit  Plan  (the  “2019 
Consultants  RSU  Plan”),  which  was  effective  as  of  16  May  2019,  pursuant  to  which  the  Compensation  and  Organisation 
Committee of the Company’s Board of Directors may select any consultant, adviser or non-executive Director retained by 
the Company, or a Subsidiary to receive an award under the plan. 250,000 ordinary shares have been reserved for issuance 
under the 2019 Consultants RSU Plan. The awards are at par value and vest over a service period. Awards granted to non-
executive  directors  vest  over  twelve  months.  No  awards  may  be  granted  under  the  2019  Consultants  RSU  Plan  after  16 
May 2029.

87 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

12. Share-based payments (continued)

The Company has awarded RSUs and PSUs to certain key individuals of the Group. The fair value of RSUs is based on the 
share price at the date of grant, with the expense spread over the vesting period. The following table summarises RSU and 
PSU activity for the year ended 31 December 2023:

Outstanding at 31 December 2022

Granted

Shares vested

Forfeited

Outstanding at 31 December 2023

PSU 
Outstanding
Number of 
Shares

152,420  $ 

60,374  $ 

(47,026) $ 

(60,512) $ 

105,256  $ 

PSU
Weighted 
Average
Grant Date 
Fair Value
192.29 

232.51 

159.57 

198.70 

226.29 

RSU 
Outstanding
Number
of Shares

RSU
Weighted 
Average
Grant Date Fair 
Value
207.73 

582,612  $ 

308,963  $ 

(188,800) $ 

(81,764) $ 

621,011  $ 

218.86 

187.68 

216.03 

218.27 

The PSUs vest based on service and specified EPS targets over the period 2021 – 2023, 2022 – 2024 and 2023 – 2025. 
Depending on the actual amount of EPS from 2021 to 2025, up to an additional 49,340 PSUs may also be granted.

Share-based payment expense

Operating  profit  for  the  year  ended  31  December  2023  is  stated  after  charging  $51.4  million  in  respect  of  share-based 
payment expense. Share-based payment expense has been allocated as follows:

Direct costs

Other operating expenses

Total

31 December
2023

31 December
2022

$’000

25,672 

25,708 

51,380 

$’000

17,331 

38,459 

55,790 

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92 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

14. Goodwill and intangible assets (continued)

Impairment review of goodwill

Goodwill is subject to impairment testing on an annual basis, or more frequently if there are indicators of impairment. These 
assets are allocated to groups of cash generating units (CGUs). The recoverable amount of each of the CGUs is determined 
based  on  value-in-use  calculations.  Goodwill  acquired  through  business  combinations  has  been  allocated  to  the  Group’s 
three  CGUs. The  CGUs  identified  represent  the  lowest  level  within  the  Group  at  which  goodwill  is  monitored  and  are  not 
larger than the operating segment determined in accordance with IFRS 8 Operating Segments. 

The Group has identified three CGUs in accordance with the provisions of IAS 36 Impairment of Assets. 

A summary of the allocation of the carrying value of goodwill by CGU, is as follows:

Clinical Research

Strategic Solutions

Data Solutions

Total Goodwill

Impairment testing methodology and results

31 December
2023

31 December
2022

$’000

$’000

7,334,649 

7,284,244 

1,372,648 

1,372,648 

367,587 

367,587 

9,074,884 

9,024,479 

Cash flow forecasts employed for the value-in-use calculations are for a five year period approved by management and a 
terminal value which is applied to the year five cash flows. The terminal value reflects the discounted value of the cash flows 
beyond year five which is based on the weighted average long-term growth rates for each CGU.

Management’s  estimates  of  future  cash  flows  are  based  upon  current  budgets  and  strategic  plans  and  are  reflective  of 
anticipated  growth  rates  within  the  CRO  industry,  expected  growth  in  the  Group’s  market  share  and  reflective  of  past 
experience.  Key  assumptions  applied  in  determining  expected  future  cash  flows  for  these  plans  include  management’s 
estimate of future profitability, replacement capital expenditure requirements, trade working capital investment needs and tax 
considerations.  The Group’s cash flow projections are adjusted each year for actual and expected changes in performance. 

The following assumptions were applied in determining the ten year projected cash flows of the three CGUs at 31 December 
2023:

Expected revenue growth rate

Expected growth rate for operating costs

Expected effective tax rate

Discount rate

Long term growth

31 December 2023

Clinical 
Research

Strategic 
Solutions

Data 
Solutions

 6.1 %

 5.9 %

 16.5 %

 10.8 %

 3.0 %

 7.6 %

 7.4 %

 16.5 %

 10.8 %

 3.0 %

 7.9 %

 6.1 %

 16.5 %

 10.8 %

 3.0 %

93Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

14. Goodwill and intangible assets (continued)

Expected  revenue  growth  and  the  expected  growth  in  operating  costs  are  determined  based  upon  the  expected  growth 
rates  used  in  preparing  the  Group’s  budgets  and  strategic  plans.  In  estimating  budget  revenue,  consideration  is  given  to 
current levels of backlog (i.e. the value of new business awards not yet recognised in revenue) and the estimated timeframe 
over which this is expected to be recognised within revenue, together with an estimate of revenue expected to be generated 
from new awards not currently within backlog. In estimating revenue from new awards, consideration is given to current RFP 
(request for proposals) volumes, expected growth rates in both the CRO industry and the Group’s market share, and of past 
experience. In estimating budgeted operating costs, consideration is given to required staffing levels, project related costs, 
facility and information technology costs and other costs. Staff costs and project related costs generally increase in line with 
revenue and are therefore estimated based on revenue growth expectations, while facility and IT costs and other costs are 
relatively  fixed  and  are  therefore  projected  based  upon  a  lower  growth  rate. An  expected  long-term  average  tax  rate  of 
16.5% (2022: 15.5%) has been applied in determining the projected after tax cash flows.

Expected annual working capital growth and expected capital expenditure growth are based upon the expected growth rates 
used in preparing the Group’s budgets and strategic plans. Long term growth rates were based on global macroeconomic 
data.

A pre-tax discount rate of 10.8% (2022: 11.5%) has been applied to the projected cash flows of the CGUs in determining its 
value-in-use.  This  rate  is  reflective  of  both  the  time  value  of  money  and  risks  specific  to  the  CGUs.  The  discount  rate  is 
based  upon  the  Group’s  weighted  average  cost  of  capital  which  has  been  determined  by  applying  the  Group’s  long-term 
optimal capital structure to its costs of debt and cost of equity. The Group’s cost of debt has been calculated by applying an 
appropriate margin over the risk-free interest rate. The Group’s cost of equity has been calculated using the capital asset 
pricing  model  and  includes  an  appropriate  equity  risk  premium  over  the  available  risk-free  interest  rate.  The  Group’s 
weighted average cost of capital is adjusted to reflected additional risk premiums associated with each CGU.

No  impairment  was  recognised  in  2023  or  2022  as  a  result  of  the  impairment  testing  which  identified  headroom  in  the 
recoverable amount of the related CGUs as compared to their carrying value.

Sensitivity Analysis

A sensitivity analysis to determine if reasonable changes in key assumptions could lead to an impairment was conducted at 
31 December 2023. The table below identifies the amounts by which each of the specified assumptions may either decline 
or  increase  to  arrive  at  a  zero  excess  of  the  present  value  of  future  cash  flows  over  the  carrying  value  of  goodwill  in  the 
CGU: 

Expected revenue growth rate decreased by*

Discount rate increased by*

*All other inputs remained constant

31 December 2023

Clinical 
Research

Strategic 
Solutions

Data 
Solutions

 3.0 %

 10.7 %

 6.0 %

 17.4 %

 3.0 %

 3.6 %

Management believes that the assumptions originally used in the value-in-use models are sufficiently prudent to ensure no 
reasonable change, in normal circumstances, in any of the above key assumptions would cause the carrying value of any 
CGU to exceed its recoverable amount.

94Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

15. Business combinations

(a)  BioTel Research LLC Acquisition   

On  2  October  2023,  the  Company  acquired  the  entire  outstanding  equity  interests  of  BioTel  Research  LLC  (“BioTel”),  a 
leading  provider  of  medical  imaging  and  cardiac  safety  monitoring  services,  from  BioTelemetry  Inc.  in  exchange  for  initial 
cash consideration of $68.1 million. Cash acquired amounted to $1.4 million. The purchase price allocation, as of the date of 
acquisition,  was  based  on  a  preliminary  valuation  and  may  be  subject  to  revision.  Preliminarily,  the  BioTel  acquisition 
resulted  in  the  initial  recognition  of  intangible  assets  of  $36.5  million  and  goodwill  of  $23.4  million.  Preliminary  goodwill 
arising  in  connection  with  the  acquisition  is  primarily  attributable  to  the  assembled  workforce  of  BioTel  and  the  expected 
synergies of the acquisition. 

(b)  

Oncacare Limited Acquisition 

On  20  April  2023,  the  Company  completed  the  purchase  of  the  majority  investor's  51%  majority  voting  share  capital  of 
Oncacare Limited ("Oncacare") for $5.1 million, such that Oncacare and its subsidiaries became wholly-owned subsidiaries 
of  the  ICON  Group.  The  Oncacare  acquisition  resulted  in  goodwill  of  $13.4  million  and  also  gave  rise  to  an  acquisition-
related gain of $6.2 million. 

(c)  

PRA Health Sciences, Inc. Acquisition 

On 1 July 2021 (the "Merger Date"), the Company completed the Acquisition of PRA by means of a merger whereby Indigo 
Merger  Sub,  Inc.,  a  Delaware  corporation  and  subsidiary  of  ICON,  merged  with  and  into  PRA  Health  Sciences,  Inc.,  the 
parent of the PRA Health Sciences Group ("the Acquisition" and "the Merger"). The combined Group has retained the name 
ICON and brought together approximately 38,000 (as at the Merger date) employees across the globe, creating one of the 
world’s  most  advanced  healthcare  intelligence  and  clinical  research  organisation.  The  Merger  was  accounted  for  as  a 
business combination using the acquisition method of accounting in accordance with IFRS 3 'Business Combinations'.

The combined Company leverages its enhanced operations to transform clinical trials and accelerate biopharma customers’ 
commercial  success  through  the  development  of  much  needed  medicines  and  medical  devices.  The  new  ICON  has  a 
renewed  focus  on  leveraging  data,  applying  technology  and  accessing  diverse  patient  populations  to  speed  up  drug 
development.

Upon completion of the Merger, pursuant to the terms of the Merger Agreement, PRA became a wholly owned subsidiary of 
the ICON Group. Under the terms of the Merger, PRA shareholders received per share $80 in cash and 0.4125 shares of 
ICON stock. 

In  the  years  ended  31  December  2023  and  31  December  2022,  the  Company  incurred  approximately  $44.2  million  and 
$39.7 million, respectively, of Merger-related expenses which were accounted for separately from the business combination 
and expensed as incurred within the Other Operating Expenses line item of the Consolidated Statement of Profit and Loss. 
These  costs  consist  primarily  of  investment  banker  fees,  advisory  costs,  professional  fees,  retention  agreements  with 
employees, accelerated share-based compensation charges, and ongoing integration activities. 

In  the  years  ended  31  December  2023  and  31  December  2022,  the  Company  incurred  approximately  $16.4  million  and 
$17.7 million, respectively, of Merger-related financing fees which are included in the “Financing Expense” line item in the 
Consolidated Statement of Profit and Loss.

The Merger Date fair value of the consideration transferred consisted of the following:

Fair value of cash consideration

Fair value of ordinary shares issued to acquiree stockholders

Fair value of replacement share-based awards issued to acquiree employees

Repayment of term loan obligations and accrued interest *

$'000

5,308,646 

5,658,126 

267,607 

865,800 

12,100,179 

* This  represents  the  portion  of  PRA  debt  paid  by  ICON.  PRA  also  paid $401.6  million  from  available  cash  to  settle  debt 
obligations that existed at the Merger Date.

The  following  table  summarises  the  allocation  of  the  consideration  transferred  based  on  the  Merger  Date  fair  values  of 
assets  acquired  and  liabilities  assumed,  with  the  excess  of  the  purchase  price  over  the  fair  values  of  the  identifiable  net 
assets acquired recorded as goodwill:

95 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

15. Business combinations (continued)

Fair Value

Cash and cash equivalents

Accounts receivable and unbilled revenue

Other current assets

Property, plant and equipment

Operating lease right-of-use assets

Goodwill *

Intangible assets

Deferred tax assets

Other assets

Accounts payable

Accrued expenses and other current liabilities

Current portion of operating lease liabilities

Unearned revenue

Non-current portion of operating lease liabilities

Deferred tax liabilities

Other non-current liabilities

Net assets acquired

1 July 2021

$'000

259,971 

934,308 

125,156 

101,743 

180,679 

8,123,003 

4,974,119 

28,587 

33,928 

(50,259) 

(380,342) 

(36,775) 

(723,278) 

(146,903) 

(1,119,762) 

(203,996) 

12,100,179 

* The goodwill in connection with the Merger is primarily attributable to the assembled workforce of PRA and the expected 
synergies of the Merger. None of the goodwill recognised is deductible for income tax purposes.

The following table summarises the fair value of identified intangible assets and their respective useful lives as of the Merger 
Date:

Estimated Useful Life

Estimated Fair Value

Customer relationships

Order backlog

Trade names

Patient database

Technology assets

Software

23 years  

3 years  

3 years  

7 years  

5 years  

2-8 years  

$'000

3,938,000 

500,000 

202,000 

168,000 

111,000 

55,119 

4,974,119 

At 30 June 2022, the Company completed its review of the 1 July 2021 acquisition balance sheet of PRA and completed the 
final valuation associated with certain assets acquired and liabilities assumed. During the year ended 31 December 2022, 
the Company recognised certain measurement period adjustments as shown in the table below:

Goodwill

Intangible assets 

Deferred tax assets

Deferred tax liabilities

Other non-current liabilities

Measurement period 
adjustments

$'000

(36,579) 

33,000 

(2,910) 

7,188 

(699) 

The impact of these measurement period adjustments has been incorporated with effect from the Merger Date.

96 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued) 
for the year ended 31 December 2023

16. Inventories

Laboratory inventories

31 December
2023

31 December
2022

$’000

8,442   

$’000

7,063 

The cost of inventories is recognised as an expense and included in direct costs in the Consolidated Statement of Profit and 
Loss.  For  the  year  ended  31  December  2023,  $79.0  million  (2022:  $74.0  million)  was  charged  to  the  Consolidated 
Statement of Profit and Loss. There was no material difference between the Consolidated Statement of Financial Position 
value of inventories and their replacement costs.

17. Accounts receivable, unbilled services (contract assets) and unearned revenue (contract liabilities)

Accounts receivables and unbilled revenue are as follows: 

Billed services (accounts receivable)

Unbilled services (unbilled revenue)

Trade accounts receivable and unbilled revenue, gross

Allowance for credit losses

Trade accounts receivable and unbilled revenue, net

31 December
2023

31 December
2022

$’000

$’000

1,821,855 

1,751,950

951,936

957,655

2,773,791   

2,709,605 

(31,533)

(20,562)

2,742,258   

2,689,043 

Accounts receivables are amounts due from customers for services performed in the ordinary course of business. They are 
generally  due  for  settlement  within  30-90  days  and  therefore  are  all  classified  as  current.  Accounts  receivable  are 
recognised  initially  at  the  amount  of  consideration  that  is  unconditional.  Accounts  receivable  balances  do  not  contain 
significant financing components. The Group holds the accounts receivable with the objective to collect the contractual cash 
flows and therefore measures them subsequently at amortised cost.   

All  receivables  are  due  within  twelve  months  of  the  year  ended  31  December  2023.  Due  to  the  short-term  nature  of  the 
current receivables, their carrying amount is considered to be the same as their fair value.  

Unbilled services and unearned revenue (contract assets and liabilities) were as follows:

31 December
2023

31 December
2022

Change

% Change

$’000

$’000

$’000

Unbilled services (unbilled revenue)

951,936   

957,655   

(5,719) 

Unearned revenue (payments on account)

(1,654,507)  

(1,507,449)  

(147,058) 

(702,571)  

(549,794)  

(152,777) 

 (0.6) %

 9.8 %

 27.8 %

Timing may differ between the satisfaction of performance obligations and the invoicing and collection of amounts related to 
our contracts with customers. We record assets for amounts related to performance obligations that are satisfied but not yet 
billed and/or collected. These assets are recorded as unbilled revenue and therefore contract assets rather than accounts 
receivables  when  receipt  of  the  consideration  is  conditional  on  something  other  than  the  passage  of  time.  Liabilities  are 
recorded for amounts that are collected in advance of the satisfaction of performance obligations or billed in advance of the 
revenue being earned.

Unbilled services/revenue balances arise where invoicing or billing is based on the timing of agreed milestones related to 
service  contracts  for  clinical  research.  Contractual  billing  arrangements  in  respect  of  certain  reimbursable  expenses 
(principally investigators) require billing by the investigator to the Company prior to billing by the Company to the customer.    

97 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

17. Accounts receivable, unbilled services (contract assets) and unearned revenue (contract liabilities) (continued)

The  Company  is  the  contract  principal  in  respect  of  both  direct  services  and  in  the  use  of  third  parties  (principally 
investigator services) that support a clinical trial. The progress towards completion for clinical service contracts is measured 
based on total project costs (including reimbursable costs). Reimbursable expenses are included within direct costs and are 
recorded  based  on  activity  undertaken  by  the  third-party.  Amounts  owed  to  investigators  and  others  in  respect  of 
reimbursable  expenses  was  $333.0  million  at  31  December  2023  and  $406.3  million  at  31  December  2022  (see  note  21 
Accrued and other liabilities).  

Unbilled  services  as  at  31  December  2023  decreased  by  $5.7  million  as  compared  to  31  December  2022.  Unearned 
revenue increased by  $147.1 million resulting  in  an increase of  $152.8 million in the net balance of unbilled services  and 
unearned revenue between 31 December 2022 and 31 December 2023. These fluctuations are primarily due to the timing of 
payments and invoicing related to the Company's clinical trial management contracts. Billings and payments are established 
by contractual provisions including predetermined payment schedules which may or may not correspond to the timing of the 
transfer of control of the Company's services under the contract. Unbilled services arise from long-term contracts when a 
cost-based  input  method  of  revenue  recognition  is  applied  and  revenue  recognised  exceeds  the  amount  billed  to  the 
customer.

As  of  31  December  2023  approximately $14.8  billion  (2022:  $13.7  billion)  of  revenue  is  expected  to  be  recognised  in  the 
future in respect of unsatisfied performance obligations. The Company expects to recognise revenue on approximately 52% 
(2022:  52%)  of  the  unrealised  performance  obligation  over  the  next  12  months,  with  the  remainder  recognised  thereafter 
over the duration of the customer contracts.  

Impairment of financial assets

At 31 December 2023, the Group maintained an impairment provision of $31.5 million (2022: $20.6 million). The credit loss 
expense  recognised  on  the  Group's  receivables  and  unbilled  services  was  $24.6  million  and  $17.8  million  for  the  twelve 
months ended 31 December 2023 and 2022, respectively.

The Group's estimate of expected credit losses considers historical credit loss information that is adjusted, where necessary, 
for current conditions and reasonable and supportable forecasts. Historical credit loss experience provides the basis for the 
estimation of expected credit losses. The Group's receivables and unbilled services are predominantly due from large and 
mid-tier  pharmaceutical  and  biotechnology  companies  that  share  similar  risk  characteristics.  The  Group  monitors  their 
portfolio of receivables and unbilled services for any deterioration in current or expected credit quality (for example expected 
delinquency level), and adjusts the allowance for credit losses as required. Receivables for which an impairment provision 
was recognised were written off against the provision when there was no expectation of recovering additional cash.  

The Group considered that there was evidence of impairment if any of the following indicators were present: 

•
•
•

significant financial difficulties of the debtor
probability that the debtor will enter a financial restructuring process
default or late payment

The  closing  loss  allowance  for  trade  receivables  and  contract  assets  as  at  31  December  2023  and  31  December  2022 
reconciles to the opening loss allowances as follows: 

Balance at start of year 

Receivables written off during the year as uncollectible

Increase in loss allowance recognised in profit or loss during the year

Foreign currency translation

Balance at end of year

31 December
2023

31 December
2022

$’000

20,562   

(13,358)  

24,550   

(221)  

$’000

7,081 

(3,913) 

17,800 

(406) 

31,533   

20,562 

98 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

17. Accounts receivable, unbilled services (contract assets) and unearned revenue (contract liabilities) (continued)

Further analysis of the Group’s accounts receivable balances at 31 December 2023 and 31 December 2022 is as follows:

Gross accounts receivable

Not past due

Past due 0 to 30 days

Past due 31 to 60 days

Past due 61+ days

Accounts receivable

31 December
2023

31 December
2022

$’000

$’000

1,239,075   

1,298,520 

157,673   

185,282 

102,556   

86,059 

322,551   

182,089 

1,821,855   

1,751,950 

The carrying amounts of the Group’s accounts receivables are denominated in the following currencies:

Currency

US Dollar

Euro

Sterling

Other currencies

 Total

18. Other assets 

Non-current other assets

Lease deposits

Deferred employee savings scheme assets

Other receivables

Total

31 December
2023

31 December
2022

$’000

$’000

1,394,414   

1,310,111 

327,816   

348,194 

13,785   

85,840   

19,641 

74,004 

1,821,855   

1,751,950 

31 December
2023

31 December
2022

$’000

$’000

17,667   

21,086   

39,717   

78,470   

15,210 

24,260 

37,391 

76,861 

Lease  deposits  paid  in  respect  of  certain  premises  leased  by  the  Group  are  refundable  on  expiry  of  the  related  leases. 
Discounting  of  the  non-current  element  has  not  been  applied  because  the  discount  would  be  immaterial.  However, 
discounting may apply in the future if the non-current element becomes significant such that the discounting impact would 
be material.

Other current assets

Personnel related prepayments

Facility and information system related prepayments

General overhead prepayments

Sales tax recoverable

Other receivables

Total

31 December
2023

31 December
2022

$’000

$’000

2,655   

69,881   

39,529   

32,183   

45,212   

954 

58,342 

57,258 

24,029 

47,034 

189,460   

187,617 

99 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued) 
for the year ended 31 December 2023

18. Other assets (continued)

Other current assets do not contain any impaired assets. The maximum exposure to credit risk at the reporting date is the 
carrying  value  of  each  receivable,  other  than  prepayments  which  do  not  have  credit  risk.  The  Group  does  not  hold  any 
collateral as security.

19. Financial asset investments

(a) Current asset investments - fair value through OCI

At start of year

Additions

Disposals/maturities

At end of year

31 December 
2023

31 December 
2022

$’000

1,713   

2,857   

(2,616)  

1,954   

$’000

1,712 

482 

(481) 

1,713 

Current asset investments comprise highly liquid investments with maturities of greater than three months and minimum “A-” 
rated fixed and floating rate securities.

(b) Non-current financial assets - fair value through profit or loss

The  Company  entered  into  subscription  agreements  with  a  number  of  funds.  During  the  year  ended 31  December  2023, 
capital totalling $14.0 million had been advanced under the terms of the subscription agreements (2022: $3.7 million). 

The Company determined that the interests in the funds meet the definition of equity securities without readily determinable 
fair values. The valuation technique is based on the net asset value of the fund as prepared by an independent appraiser. 
Inputs are generally unobservable as the funds are not traded on an exchange and data is not published in respect of the 
funds. The fair value of interests in the funds are therefore represented by Level 3 fair value measurements. 

There was an increase in fair value of $0.2 million (2022: $6.3 million) recognised in the Consolidated Statement of Profit 
and Loss during the year bringing the carrying value of the subscriptions to $46.8 million at 31 December 2023 (2022: $32.6 
million). 

At 31 December 2023, the Company had committed to future investments of $66.4 million in respect of these funds.

(c) Equity method investments

On  24  July  2020,  the  Company  obtained  a  49%  interest  in  the  voting  share  capital  of  Oncacare  Limited  ("Oncacare")  in 
exchange for consideration of $4.9 million. At that time, the Company’s investment in Oncacare was accounted for under the 
equity  method  due  to  the  Company's  ability  to  exercise  significant  influence  over  Oncacare  which  was  considered  to  be 
greater than minor. The Company recorded its pro rata share of the earnings/losses of the investment in 'Share of equity 
method investment losses' in the Consolidated Statement of Profit and Loss (see note 1 Basis of preparation and statement 
of accounting policies). 

During the year ended 31 December 2023, the Company recorded losses of $0.4 million representing its pro rata share of 
the losses in Oncacare (2022: $3.1 million). 

On  20  April  2023,  the  Company  completed  the  purchase  of  the  majority  investor’s  51%  majority  voting  share  capital  of 
Oncacare, such that Oncacare and its subsidiaries became wholly owned subsidiaries of the ICON Group.

100 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

20. Cash and cash equivalents

Cash at bank and in hand

21. Accrued and other liabilities

Non-current other liabilities

Personnel related liabilities 

Deferred government grants (note 22)

Retirement plans net obligation 

Deferred employee savings scheme liabilities

Other liabilities

Total

31 December
2023

31 December
2022

$’000

$’000

378,102   

288,768 

31 December
2023

31 December
2022

$’000

$’000

109   

854   

14,738   

13,228   

15,021   

43,950   

155 

1,115 

13,033 

11,220 

12,229 

37,752 

Deferred employee savings scheme liabilities are payable more than 5 years from the reporting date (see note 26 Financial 
instruments).  Discounting  of  the  non-current  element  has  not  been  applied  because  the  impact  would  be  immaterial. 
However,  discounting  may  apply  in  the  future  if  the  non-current  element  becomes  significant  such  that  the  discounting 
impact would be material.

Current accrued and other liabilities

Personnel related liabilities

Facility related liabilities

General trade and overhead liabilities*

Lease liabilities (note 27)

Other liabilities

Short-term government grants (note 22)

Total

31 December
2023

31 December
2022

$’000

$’000

385,499   

395,862 

11,078   

16,896 

463,882   

530,204 

36,414   
13,532   

43   

43,656 

12,852 

42 

910,448   

999,512 

*includes  amounts  due  to  third  parties  in  respect  of  accrued  reimbursable  investigator  expenses  of  $333.0  million  at 
31 December 2023 and $406.3 million at 31 December 2022.

101 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

22. Deferred government grants

At beginning of year

Grant additions

Amortised during the year

Foreign exchange movement

At end of year

Current (note 21)

Non-current (note 21)

Total

31 December
2023

31 December
2022

$’000

1,157   

24   

(281)  
(3)  

897   

43   

854   

897   

$’000

780 

536 

(155) 

(4) 

1,157 

42 

1,115 

1,157 

Under grant agreements amounts received may become repayable in full or in part should certain circumstances specified 
within the grant agreements occur, including downsizing by the Group, disposing of the related assets, ceasing to carry on 
its business or the appointment of a receiver over any of its assets. 

23. Bank credit lines and loan facilities 

The Company had the following debt outstanding as at 31 December 2023 and 31 December 2022:

 Interest rate as of

Principal amount

Maturity Date

31 December 
2023

31 December 
2022

31 December 
2023

31 December 
2022

$'000

$'000

Senior Secured Term Loan

Senior Secured Notes

July 2028

July 2026

 7.860 %

 2.875 %

 7.092 %  

3,251,213   

4,201,213 

 2.875 %  

500,000   

500,000 

Senior Secured Revolving Loan

January 2024

 6.720 %  

— 

55,000   

— 

Total debt

Less current portion of debt

Total long-term debt

Less debt issuance costs and debt discount

Total long-term debt, net

3,806,213   

4,701,213 

(110,150)  

(55,150) 

3,696,063   

4,646,063 

(30,624)  

(47,026) 

3,665,439   

4,599,037 

As of 31 December 2023, the contractual maturities of the Company's debt obligations were as follows:

Current maturities of debt:

2024

2025

2026

2027

2028 and thereafter

Total

$'000

110,150 

55,150 

555,150 

55,150 

3,030,613 

3,806,213 

The  Company's  primary  financing  arrangements  are  its  senior  secured  credit  facilities  (the  "Senior  Secured  Credit 
Facilities"), which consists of a senior secured term  loan and a revolving credit facility, and the senior secured notes  (the 
"Senior Secured Notes").

102 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

23. Bank credit lines and loan facilities (continued)

Senior Secured Credit Facilities

On  1  July  2021,  the  Company  completed  the  acquisition  of  PRA  Health  Sciences,  Inc.  ("PRA")  by  means  of  a  merger 
whereby Indigo Merger Sub, Inc., a Delaware corporation and subsidiary of ICON, merged with and into PRA, the parent of 
the PRA Health Sciences ("the Merger").  In conjunction with the completion of the Merger, on 1 July 2021, ICON entered 
into a credit agreement providing for a senior secured term loan facility of $5,515 million and a senior secured revolving loan 
facility in an initial aggregate principal amount of $300 million (the "Senior Secured Credit Facilities"). The Senior Secured 
Credit Facility and Senior Secured Notes were issued at a discount of $27.6 million. On 2 May 2023, the Company agreed 
with its lenders to increase the aggregate principal amount of the senior secured revolving loan facility from $300 million to 
$500 million.

Borrowings under the senior secured term loan facility amortise in equal quarterly installments in an amount equal to 1.00% 
per annum of the principal amount, with the remaining balance due at final maturity. The interest rate margin applicable to 
borrowings under the senior secured term loan facility is USD Term SOFR and a Term SOFR Adjustment depending on the 
interest  period  chosen  plus  an  applicable  margin  which  is  dependent  on  the  Company's  net  leverage  ratio.  As  of 
31 December 2023, the applicable margin is 2.25%. The senior secured term loan facility is subject to a floor of 0.50%.

The interest rate margin applicable to borrowings under the revolving loan facility will be, at the option of the borrower, either 
(i) the applicable base rate plus an applicable margin of 1.00%, 0.60% or 0.25% based on ICON’s current corporate family 
rating  assigned  by  S&P  of  BB-  (or  lower),  BB  or  BB+  (or  higher),  respectively,  or  (ii)  Term  SOFR  plus  a  Term  SOFR 
Adjustment  on  the  interest  period  chosen  plus  an  applicable  margin  of 2.00%,  1.60%  or  1.25%  based  on  ICON’s  current 
corporate family rating assigned by S&P of BB- (or lower), BB or BB+ (or higher), respectively. In addition, lenders under the 
revolving loan facility are entitled to commitment fees as a percentage of the applicable margin at the time of drawing and 
utilisation  fees  dependent  on  the  proportion  of  the  facility  drawn. At  31  December  2023,  $445  million  remained  undrawn 
under the senior secured revolving loan facility.

The Borrowers’ (as defined in the credit agreement) obligations under the Senior Secured Credit Facilities are guaranteed 
by  ICON  and  the  subsidiary  guarantors. The  Senior  Secured  Credit  Facilities  are  secured  by  a  lien  on  substantially  all  of 
ICON’s,  the  Borrowers’  and  each  of  the  subsidiary  guarantor’s  assets  (subject  to  certain  exceptions),  and  the  Senior 
Secured Credit Facilities will have a first-priority lien on such assets, which will rank pari passu with the lien securing the 
Senior  Secured  Notes,  subject  to  other  permitted  liens.    The  Company  is  permitted  to  make  prepayments  on  the  senior 
secured  term  loan  without  penalty.  The  Company's  long-term  debt  arrangements  contain  customary  restrictive  covenants 
and, as of 31 December 2023, we were in compliance with our restrictive covenants in all material respects.

Principal  repayments,  comprising  mandatory  and  voluntary  repayments,  during  the  year  ended  31  December  2023  and 
31 December 2022 were as follows:

Principal repayments

Quarter 1

Quarter 2

Quarter 3

Quarter 4

Total

December 31, 
2023

December 31, 
2022

$'000

250,000  

150,000  

300,000  

250,000  

950,000  

$'000

300,000 

100,000 

200,000 

200,000 

800,000 

The  voluntary  repayments  made  during  the  year  resulted  in  an  accelerated  charge  associated  with  previously  capitalized 
fees of $7.9 million (31 December 2022: $7.8 million). 

During the year ended 31 December 2023, the Company drew down $370.0 million (31 December 2022: $75 million) of the 
senior  secured  revolving  loan  facility  and  repaid  $315.0  million  (31  December  2022:  $75  million)  as  shown  below. As  at 
31  December  2023,  $55  million  (31  December  2022:  $Nil  million  )  was  drawn  under  the  senior  secured  revolving  loan 
facility.

103 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

23. Bank credit lines and loan facilities (continued)

31 December 2022

Quarter 1, 2023

Quarter 2, 2023

Quarter 3, 2023

Quarter 4, 2023

Senior Secured Notes

Drawdown 

Repayment

$'000

$'000

—  

—  

180,000  

100,000  

50,000  

75,000  

65,000  

80,000  

50,000  

85,000  

370,000  

315,000 

Closing 
Balance

$'000

— 

80,000 

50,000 

75,000 

55,000 

In  addition  to  the  Senior  Secured  Credit  Facilities,  on  1  July  2021,  a  subsidiary  of  the  Company  issued  $500  million  in 
aggregate  principal  amount  of  2.875%  senior  secured  notes  due  2026  in  a  private  offering  (the  “Offering”).  The  Senior 
Secured Notes will mature on 15 July 2026. 

Fair Value of Debt

The  estimated  fair  value  of  the  Company’s  debt  was  $3,793.5  million  and  $4,650.3  million  at  31  December  2023  and 
31  December  2022,  respectively.  The  fair  values  of  the  Senior  Secured  Credit  Facilities  and  Senior  Secured  Notes  were 
determined based on Level 2 inputs, which are based on rates at which the debt is traded among financial institutions. The 
fair value of the senior secured revolving loan facility is recorded as its carrying value due to the short term duration. 

Derivatives

The Company has entered into interest rate cap and swap agreements for purposes of managing its exposure to interest 
rate  fluctuations.  These  financial  derivative  agreements  are  designated  as  Cash  Flow  Hedges.    See  note  26  -  Financial 
Instruments for related information and disclosures.

Net Debt

The movement in net debt by category is as follows:

 1 Jan
 2023

$'000

Net cash 
inflow/ 
(outflow)

Other non-
cash 
adjustments

Effects of 
exchange 
rates

$'000

$'000

$'000

31 Dec 
2023

$'000

Net cash and cash equivalents

288,768   

90,331   

—   

(997)  

378,102 

Financial assets at fair value through other 
comprehensive income

Total cash and cash equivalents

1,713   

241   

290,481   

90,572   

—   

—   

—   

1,954 

(997)  

380,056 

 1 Jan 
2023

$'000

Drawn 
down 

$'000

Repaid

$'000

Net cash 
(inflow)/ 
outflow

Other non-
cash 
adjustments

Effect of 
exchange 
rates

$'000

$'000

$'000

31 Dec 
2023

$'000

Lease liabilities

(175,300)  

—   

53,802   

53,802   

(41,365)  

128   

(162,735) 

Revolving Credit Facility

—   

(370,000)   315,000   

(55,000)  

—   

—   

(55,000) 

Senior Secured Credit 
Facilities

  (4,156,676)  

—    950,000   

950,000   

(14,743)  

—   (3,221,419) 

Senior Secured Notes

(497,511) 

—   

—   

(1,659)  

—   

(499,170) 

Total borrowings and 
lease liabilities

  (4,829,487)  

(370,000)   1,318,802   

948,802   

(57,767)  

128   (3,938,324) 

104 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

24. Share capital

Group and Company

Authorised share capital:

Ordinary shares of par value €0.06

No. of Ordinary Shares

100,000,000

31 December
2023

31 December
2022

$’000

$’000

Allotted, called up and fully paid

82,495,086 (31 December 2022: 81,723,555) ordinary shares of €0.06 each

6,699   

6,649 

Issued, fully paid share capital

At beginning of year

Employee share options exercised

Restricted share units/ performance share units

Repurchase of ordinary shares

At end of year

6,649   

6,640 

35   

15   

—   
6,699   

21 

16 

(28) 

6,649 

Holders of ordinary shares will be entitled to receive such dividends as may be recommended by the Board of Directors of 
the Company and approved by the Shareholders and/or such interim dividends as the Board of Directors of the Company 
may decide. On liquidation or a winding up of the Company, the par value of the ordinary shares will be repaid out of the 
assets available for distribution among the holders of the ordinary shares of the Company. Holders of ordinary shares have 
no conversion or redemption rights. On a show of hands, every holder of an ordinary share present in person or proxy at a 
general meeting of shareholders shall have one vote, for each ordinary share held with no individual having more than one 
vote. 

(a) 

Employee share based payments

During the year ended 31 December 2023, 535,705 options were exercised by employees at an average exercise price of 
$95.12 per share for total proceeds of $51.0 million. During the year ended 31 December 2023, 188,800 ordinary shares 
were issued in respect of certain RSUs and 47,026 ordinary shares were issued in respect of PSUs previously awarded by 
the Company.  

During the year ended 31 December 2022, 348,286 options were exercised by employees at an average exercise price of 
$102.87 per share for total proceeds of $35.8 million. During the year ended 31 December 2022, 195,029 ordinary shares 
were issued in respect of certain RSUs and 46,087 ordinary shares were issued in respect of PSUs previously awarded by 
the Company. 

(b) 

Share repurchase programme

A  resolution  was  passed  at  the  Company’s  Annual  General  Meeting  (“AGM”)  on  22  July  2016,  which  authorised  the 
Directors to purchase (buyback) up to 10% of the outstanding shares in the Company. This resolution has been renewed 
annually thereafter. On 18 February 2022, the Company commenced a share buyback program which was fully complete 
at  31  March  2022.  Under  this  buyback  program,  420,530  ordinary  shares  were  redeemed  by  the  Company  for  total 
consideration of $100.0 million.

All ordinary shares that were redeemed under the buyback program were cancelled in accordance with the Constitution of 
the  Company  and  the  nominal  value  of  these  shares  transferred  to  other  undenominated  capital  as  required  under  Irish 
Company law.

105 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

24. Share capital (continued) 

Under the repurchase program, a broker purchased or may purchase the Company's shares from time to time on the open 
market or in privately negotiated transactions in accordance with agreed terms and limitations. The program was and may 
be in the future designed to allow share repurchases during periods when the Company would ordinarily not be permitted to 
do  so  because  it  may  be  in  possession  of  material  non-public  or  price-sensitive  information  or  due  to  applicable  insider 
trading laws or self-imposed trading blackout periods. The Company's instructions to the broker in such cases were or may 
in  the  future  be  irrevocable  and  the  trading  decisions  in  respect  of  the  repurchase  program  were  made  or  will  be  made 
independently of and uninfluenced by the Company. The Company confirms that on entering the share repurchase plans it 
had no material non-public, price-sensitive or inside information regarding the Company or its securities. Furthermore, the 
Company  will  not  enter  into  additional  plans  whilst  in  possession  of  such  information.  The  timing  and  actual  number  of 
shares acquired by way of the redemption will be dependent on market conditions, legal and regulatory requirements and 
the other terms and limitations contained in the program. In addition, acquisitions under the program may be suspended or 
discontinued in certain circumstances in accordance with the agreed terms. Therefore, there can be no assurance as to the 
timing or number of shares that may be acquired under the program.  

25. Capital and reserves

Share premium

Other undenominated capital 

Share-based payment reserve

Other reserves

Foreign currency reserve

Merger reserve

Retained earnings

Total

Other undenominated capital

31 December
2023

31 December
2022

$’000

$’000

523,646   

472,723 

1,162   

1,162 

354,183   

381,098 

10,183   

7,601 

(148,844)  

(175,065) 

5,656,195   

5,656,195 

2,919,591   

2,219,619 

9,316,116   

8,563,333 

Other  undenominated  capital  comprises  the  nominal  value  of  shares  repurchased  and  cancelled  by  the  Company  and 
transferred from share capital to other undenominated capital as required under Irish Company Law. During the year ended 
31 December 2023, nil ordinary shares were repurchased and cancelled by the Group (2022: 420,530).

Share-based payment reserve

The share-based payment reserve is used to account for share-based payments. The fair value of share-based payments is 
expensed to the Consolidated Statement of Profit and Loss over their respective period the related services are received, 
with a corresponding increase in equity. Details of options, RSU's and PSU's granted under their respective plans and the 
terms attaching thereto are provided in note 12 to the financial statements.

Other reserves

The  Group  has  recognised  a  non-distributable  reserve  of  $6.2  million  in  accordance  with  agreements  made  between  the 
Group and Enterprise Ireland, an Irish government agency. The requirement for these non-distributable reserves will expire 
between  the  period  2025  and  2028.  In  addition,  in  2005  the  Group  also  recognised  a  capital  contribution  of  $6.1  million 
being  the  fair  value  of  outstanding  ordinary  shares  transferred  to  Mr  Peter  Gray,  formerly  Vice  Chair  of  the  Board  of 
Directors and formerly Chief Executive Officer, by founding Directors, Dr. John Climax and Dr. Ronan Lambe.

The  Group  entered  into  two  interest  rate  cap  agreements  and  an  interest  rate  swap  agreement  to  limit  its  exposure  to 
changes in the variable interest rate on its Senior Secured Credit Facilities. The interest rate caps and swap are accounted 
for  as  cash  flow  hedges  and  were  considered  effective  hedges  on  application  of  the  provisions  of  IFRS  9.  The  effective 
portion of the hedges for the year ended 31 December 2023 is recorded as a movement of $1.6 million (31 December 2022: 
$3.7 million) within Other Reserves.

Foreign currency reserve

The currency reserve comprises all foreign exchange differences arising from the translation of the financial statements of 
foreign  currency  denominated  operations  of  the  Group. As  at  31  December  2023,  this  amounted  to  a  cumulative  loss  of 
$148.8 million (2022: loss of $175.1 million). 

106 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

25.  Capital and reserves (continued)

Merger reserve

On 1 July 2021, the Company completed the Acquisition of PRA by means of a merger whereby Indigo Merger Sub, Inc., a 
Delaware corporation and subsidiary of the Company, merged with and into PRA, the parent of the PRA Health Sciences 
Group.  Upon  completion  of  the  Merger,  pursuant  to  the  terms  of  the  Merger  Agreement,  PRA  became  a  wholly  owned 
subsidiary  of  the  Company.  The  transaction  resulted  in  the  issuance  of  27,372,427  shares  to  the  former  stockholders  of 
PRA. The Company issued these shares at the prevailing market price and recognised the premium of $5,656.2 million on 
issuance of these shares as a merger reserve as required under Irish Company Law.

Retained earnings

In  addition  to  the  profit  for  the  financial  year  the  Group  has  also  recognised  the  re-measurement  of  the  defined  benefit 
pension  scheme  in  this  reserve.  In  2023,  the  Group  recognised  a  re-measurement  gain  on  the  defined  benefit  pension 
scheme of $0.5 million (31 December 2022: a re-measurement gain of $13.3 million). The Group has recognised a credit of 
$91.5  million  (2022:  credit  of  $71.7  million)  in  respect  of  exercised  and  expired  share-based  awards  that  have  been 
transferred from the share-based payment reserve. 

A  resolution  was  passed  at  the  Company’s  Annual  General  Meeting  (“AGM”)  on  July  22,  2016,  which  authorised  the 
Directors to purchase (buyback) up to 10% of the outstanding shares in the Company. This resolution has been renewed 
annually thereafter. On February 18, 2022, the Company commenced a share buyback program which was fully complete 
at  31  March  2022.  Under  this  buyback  program,  420,530  ordinary  shares  were  redeemed  by  the  Company  for  total 
consideration of $100.0 million.

26.  Financial instruments

The  Board  of  Directors  have  overall  responsibility  for  the  establishment  and  oversight  of  the  Group’s  risk  management 
framework. The Group is exposed to various financial risks in the normal course of its business. The principal financial risks 
to which it is exposed include credit risks related to the creditworthiness of its customers and counterparties, with which it 
invests surplus cash funds, liquidity risk associated with the availability of sufficient financial resources to meet liabilities as 
they fall due, foreign currency risks, including both translation and transaction risk, and interest rate risk.

The  Group’s  risk  management  policies  are  established  to  identify  and  analyse  the  risks  faced  by  the  Group,  to  set 
appropriate risk limits and controls, and to monitor risks and adherence to limits. Risk management policies and systems are 
reviewed  regularly  to  reflect  changes  in  market  conditions  and  the  Group’s  activities. The  Group,  through  its  training  and 
management  standards  and  procedures,  aims  to  develop  a  disciplined  and  constructive  control  environment  in  which  all 
employees understand their roles and obligations. The Audit Committee of the Board oversees how management monitors 
compliance with the Group’s risk management policies and procedures and reviews the adequacy of the risk management 
framework in relation to the risks faced by the Group.  

Credit risk 

Credit risk arises from cash and cash equivalents, contractual cash flows of debt investments carried at fair value through 
other comprehensive income and at fair value through profit or loss, favourable derivative financial instruments and deposits 
with banks and financial institutions, as well as credit exposures to customers, including outstanding accounts receivable, 
unbilled receivables and other receivables.  

Credit risk is managed on a group basis. The ratings required for banks and financial institutions are a minimum rating of 
BBB+ for overnight maturities and a minimum of A- for any bank deposits greater than overnight and up to three months.  

Current  asset  investments  (recorded  at  fair  value  through  other  comprehensive  income)  comprise  investments  with 
maturities  of  greater  than  three  months. The  minimum  ratings  required  for  investment  are  as  follows:  bank  deposits  (A-), 
money market funds (AAA), liquidity funds (AAA) and fixed rate corporate bonds or floating rate notes (A- non-financial, AA- 
financial).  

The Group’s exposure to credit risk arises predominately in respect of the credit risk assessment of customers. Customer 
credit  risk  is  managed  through  application  of  credit  procedures,  in  particular  through  risk  assessment  of  new  customers, 
through  assessment  of  credit  quality,  taking  into  account  their  financial  position,  past  experience  and  other  factors.  The 
compliance with credit terms is regularly monitored by line management.

Contract  terms  may  range  from  several  weeks  to  several  years  depending  on  the  nature  of  the  work  to  be  performed. 
Contracts are generally fixed price or unit based. In most cases, a portion of the contract fee is paid at the time the study or 
trial is started. The balance of the contract fee is generally billable in instalments over the study or trial duration and may be 
based  on  the  delivery  of  certain  performance  targets  or  "milestones"  or  based  on  units  delivered,  or  on  a  fixed  monthly 
payment schedule such as patient enrolment or database delivery.  

107Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

26. Financial instruments (continued)

Where customers request changes in the scope of a trial or in the services to be provided, a change order or amendment is 
issued  which  may  result  either  in  an  increase  or  decrease  in  the  contract  value.  The  Group  also  contracts  on  a  "fee-for-
service" or "time and materials" basis.  

During the course of a study, the Group will generally incur reimbursable expenses. Reimbursable expenses are typically 
estimated  and  budgeted  within  the  contract  and  are  generally  invoiced  on  a  monthly  basis  based  on  actual  expenses 
incurred.  Reimbursable  expenses  include  payments  to  investigators,  travel  and  accommodation  costs  and  various  other 
expenses incurred over the course of the clinical trial which are fully reimbursable by the client. 

Most of the Group’s contracts are terminable immediately by the customer with justifiable cause or with 30 to 90 days' notice 
without  cause.  In  the  event  of  termination,  the  Group  is  usually  entitled  to  all  sums  owed  for  work  performed  through  the 
notice of termination and certain costs associated with termination of the study. Termination or delay in the performance of a 
contract  occurs  for  various  reasons,  including,  but  not  limited  to,  unexpected  or  undesired  results,  production  problems 
resulting in shortages of the drug, adverse patient reactions to the drug, the client's decision to de-emphasise a particular 
trial, inadequate patient enrolment or investigator recruitment.

The  Group’s  top  five  customers  accounted  for  approximately  26.8%  and  28.3%  of  revenue  during  the  years  ended 
31 December 2023 and 31 December 2022 respectively. During the year ended 31 December 2023, 8.9% of the Group’s 
revenues were derived from its top customer (2022: 8.8%). The addition of new customer accounts, particularly large and 
mid-tier pharma customers and biotech customers have resulted in a reduction in the concentration of revenues from our 
top five customers.

The  maximum  exposure  of  credit  risk  pertaining  to  customers  is  the  carrying  value  of  accounts  receivable  and  unbilled 
revenue  balances.  The  gross  value  of  accounts  receivable  and  unbilled  revenue  balances,  by  geographic  region,  at 
31 December 2023 was as follows:

Europe

United States

Rest of World

Gross balance

Allowance for for credit losses

Accounts Receivable

Unbilled Revenue

31 December
2023

31 December
2022

31 December
2023

31 December
2022

$’000

$’000

$’000

1,184,454   

1,024,777   

402,797   

566,497   

690,465   

472,368   

70,904   

36,708   

76,771   

1,821,855   

1,751,950   

951,936   

(31,533)  

(20,562)  

—   

$’000

380,932 

468,304 

108,419 

957,655 

— 

Total, net of allowance for credit losses

1,790,322   

1,731,388   

951,936   

957,655 

The Group has four types of financial assets that are subject to the expected credit loss model: 

•
•
•
•

trade receivables (billed amounts) for services provided to customers
unbilled receivables (contract assets) for services provided to customers
other receivables
cash and cash equivalents

Trade receivables, contract assets and other receivables

The Group applies the IFRS 9 simplified approach to measuring expected credit losses which uses a lifetime expected loss 
allowance for all trade receivables and contract assets.  

To measure the expected credit losses, trade receivables and contract assets have been grouped based on shared credit 
risk characteristics and the days past due. The contract assets relate to unbilled work in progress and have substantially the 
same risk characteristics as the trade receivables for the same types of contracts. The Group has therefore concluded that 
the expected loss rates for trade receivables are a reasonable approximation for the loss rates for the contract assets.  

The  expected  loss  rates  are  based  on  the  payment  profiles  of  revenue  over  a  period  of  36  months  before 31  December 
2023.  The  historical  loss  rates  are  adjusted  to  reflect  current  and  forward-looking  information  on  macroeconomic  factors 
affecting the ability of the customers to settle receivables. The group has identified the GDP and the unemployment rate of 
the countries in which it sells its services to be the most relevant factors, and accordingly adjusts the historical loss rates 
based  on  expected  changes  in  these  factors.  See  note  17  -  Accounts  receivable,  unbilled  services  (contract  assets)  and 
unearned  revenue  (contract  liabilities)  for  assessment  of  the  allowance  for  credit  losses  for  both  trade  receivables  and 
contract assets. 

108 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

26. Financial instruments (continued)

Trade  receivables,  other  receivables  and  contract  assets  are  written  off  when  there  is  no  reasonable  expectation  of 
recovery. Indicators that there is no reasonable expectation of recovery include, amongst others, the failure of a debtor to 
engage  in  a  repayment  plan  with  the  group,  and  a  failure  to  make  contractual  payments  for  a  period  of  greater  than  120 
days  past  due.  Impairment  losses  on  trade  receivables,  other  receivables  and  contract  assets  are  presented  as  net 
impairment losses within operating profit. Subsequent recoveries of amounts previously written off are credited against the 
same line item.  

Liquid and capital resources

The Group’s liquid and capital resources at 31 December 2023 were as follows:

Current asset investments (note 19)

Cash and cash equivalents (note 20)

Total liquid resources

Shareholders’ equity

31 December
2023
$’000

31 December
2022
$’000

1,954   

378,102   

380,056   

1,713 

288,768 

290,481 

9,322,815   

8,569,982 

The  principal  operating  cash  requirements  of  the  Group  include  payment  of  salaries,  office  rents,  travel  expenditures  and 
payments  to  investigators.  Other  cash  requirements  include  capital  expenditures  for  facilities  and  information  system 
enhancements  and  cash  required  to  fund  acquisitions  and  other  growth  opportunities.  The  CRO  industry  is  generally  not 
capital intensive. The Group primarily finances its operations and growth through cash flows from operations, together with 
amounts drawn under negotiated facilities as required. 

The Group’s primary objectives in managing its liquid and capital resources are as follows:

•
•
•

to maintain adequate resources to fund its continued operations,
to ensure availability of sufficient resources to sustain future development and growth of the business, 
to maintain sufficient resources to mitigate risks and unforeseen events which may arise.

The  Group  manages  risks  associated  with  liquid  and  capital  resources  through  ongoing  monitoring  of  actual  and  forecast 
cash  balances  and  by  reviewing  the  existing  and  future  cash  requirements  of  the  business.  It  ensures  that  sufficient 
headroom is available under the Group’s existing negotiated facilities and negotiates additional facilities as required.  Details 
of the Group’s negotiated facilities are set out in note 23 Bank credit lines and loan facilities. 

In  conjunction  with  the  completion  of  the  Merger  Agreement,  on  1  July  2021,  ICON  entered  into  a  credit  agreement 
providing  for  a  senior  secured  term  loan  facility  of  $5,515  million  and  a  senior  secured  revolving  loan  facility  in  an  initial 
aggregate principal amount of $300 million (the "Senior Secured Credit Facilities"). The Senior Secured Credit Facility and 
Senior Secured Notes were issued at a discount of $27.6 million. On 2 May 2023, the Company agreed with its lenders to 
increase the aggregate principal amount of the senior secured revolving loan facility from $300 million to $500 million. 

Borrowings under the senior secured term loan facility amortise in equal quarterly instalments in an amount equal to 1.00% 
per annum of the principal amount, with the remaining balance due at final maturity. The interest rate margin applicable to 
borrowings under the senior secured term loan facility is USD Term SOFR and a Term SOFR Adjustment depending on the 
interest  period  chosen  plus  an  applicable  margin  which  is  dependent  on  the  Company's  net  leverage  ratio.  As  of  31 
December 2023, the applicable margin is 2.25%. The senior secured term loan facility is subject to a floor of 0.50%.

The interest rate margin applicable to borrowings under the revolving loan facility will be, at the option of the borrower, either 
(i) the applicable base rate plus an applicable margin of 1.00%, 0.60% or 0.25% based on ICON’s current corporate family 
rating  assigned  by  S&P  of  BB-  (or  lower),  BB  or  BB+  (or  higher),  respectively,  or  (ii)  Term  SOFR  plus  a  Term  SOFR 
Adjustment  on  the  interest  period  chosen  plus  an  applicable  margin  of  2.00%,  1.60%  or  1.25%  based  on  ICON’s  current 
corporate family rating assigned by S&P of BB- (or lower), BB or BB+ (or higher), respectively. In addition, lenders under the 
revolving loan facility are entitled to commitment fees as a percentage of the applicable margin at the time of drawing and 
utilisation fees dependent on the proportion of the facility drawn. As at 31 December 2023, $445.0 million remained undrawn 
under the senior secured revolving loan facility.

The Borrowers' (as defined in the Senior Secured Credit Facility) obligations under the Senior Secured Credit Facilities are 
guaranteed  by  ICON  and  the  subsidiary  guarantors.  The  Senior  Secured  Credit  Facilities  are  secured  by  a  lien  on 
substantially all of ICON’s, the Borrowers' and each of the subsidiary guarantor’s assets (subject to certain exceptions), and 
the  Senior  Secured  Credit  Facilities  will  have  a  first-priority  lien  on  such  assets,  which  will  rank  pari  passu  with  the  lien 

109 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

26. Financial instruments (continued)

securing the Senior Secured Notes, subject to other permitted liens. The Company is permitted to make prepayments on the 
senior secured term loan without penalty. 

In  addition  to  the  Senior  Secured  Credit  Facilities,  on  1  July  2021,  a  subsidiary  of  the  Company  issued  $500  million  in  
aggregate  principal  amount  of  2.875%  senior  secured  notes  due  2026  in  a  private  offering  (the  “Offering”).  The  Senior 
Secured Notes will mature on July 15, 2026. 

The  following  table  sets  out  details  of  the  maturity  of  the  Group’s  financial  liabilities  into  the  relevant  maturity  groupings 
based on the remaining period from the financial year end date to contractual maturity date:

Year ended 31 December 2023

Carrying
amount

Contractual 
cash flows

Less than 
1 year

1-2 years

2-5 years

Bank credit lines and loan facilities

  (3,775,589)    (3,806,213)   

$’000

$’000

$’000
(110,150)   

$’000

$’000

(55,150)    (3,640,913)   

Interest on bank credit lines and loan 
facilities

(8,758)   (1,179,097)  

(272,501)  

(267,396)  

(639,200) 

More than 
5 years

$’000
— 

— 

Lease liabilities

(162,735)   

(176,926)   

(40,894)   

(34,585)   

(67,449)   

(33,998) 

Non-current other liabilities*

(28,358)  

(28,358)  

—   

Accounts payable

(131,584)   

(131,584)   

(131,584)   

Accrued and other liabilities**

(865,233)  

(865,233)  

(865,233)  

—   

—   

—   

—   

—   

—   

(28,358) 

— 

— 

  (4,972,257)   (6,187,411)    (1,420,362)   

(357,131)    (4,347,562)   

(62,356) 

Year ended 31 December 2022 

Carrying
amount

Contractual 
cash flows

Less than 
1 year

1-2 years

2-5 years

More than 
5 years

$’000

$’000

$’000

$’000

$’000

$’000

Bank credit lines and loan facilities

  (4,654,187)   (4,701,213)  

(55,150)  

(55,150)  

(665,450)   (3,925,463) 

Interest on bank credit lines and loan 
facilities

(8,334)   (1,677,091)  

(314,947)  

(311,799)  

(887,590)  

(162,755) 

Lease liabilities

(175,300)  

(189,668)  

(47,479)  

(34,400)  

(62,724)  

(45,065) 

Non-current other liabilities*

(23,604)  

(23,604)  

—   

Accounts payable

(81,194)  

(81,194)  

(81,194)  

Accrued and other liabilities**

(947,480)  

(947,480)  

(947,480)  

—   

—   

—   

—   

—   

—   

(23,604) 

— 

— 

  (5,890,099)   (7,620,250)   (1,446,250)  

(401,349)   (1,615,764)   (4,156,887) 

*Non-current  other  liabilities  above  excludes  retirement  plan  net  benefit  obligation  (2023:  $14.7  million  and  2022:  $13.0 
million) and deferred government grants (2023: $0.9 million and 2022: $1.1 million). 

**Accrued  and  other  liabilities  excludes  interest  on  senior  notes  presented  separately  above, deferred  government  grants 
(2023: $0.04 million and 2022: $0.04 million) and current lease liabilities (2023: $36.4 million and 2022: $43.7 million).

Foreign currency risk

The Group is subject to a number of foreign currency risks given the global nature of its operations. The principal foreign 
currency  risks  to  which  the  business  is  subject  includes  both  foreign  currency  translation  risk  and  foreign  currency 
transaction risk. Although domiciled in Ireland, the Group presents its results in U.S. dollars. As a consequence, the results 
of  non-U.S.  based  operations,  when  translated  into  U.S.  dollars,  could  be  affected  by  fluctuations  in  exchange  rates 
between the U.S. dollar and the currencies of those operations. 

The  Group  is  also  subject  to  foreign  currency  transaction  exposure  as  the  currency  in  which  contracts  are  priced  can  be 
different from the currencies in which costs relating to those contracts are incurred. The Group’s operations in the United 
States  are  not  materially  exposed  to  such  currency  differences  as  the  majority  of  revenues  and  costs  are  in  U.S.  dollars. 
However, outside the United States the multinational nature of the Group’s activities means that contracts are usually priced 
in  a  single  currency,  most  often  U.S.  dollars,  Euros  or  pounds  Sterling,  while  costs  arise  in  a  number  of  currencies, 
depending on, among other things, which of the Group’s offices provide staff for the contract and the location of investigator 
sites. 

110 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

26. Financial instruments (continued)

Although many such contracts benefit from some degree of natural hedging due to the matching of contract revenues and 
costs  in  the  same  currency,  where  costs  are  incurred  in  currencies  other  than  those  in  which  contracts  are  priced, 
fluctuations in the relative value of those currencies could have a material effect on the results of the Group’s operations. 
The  Group  regularly  reviews  its  foreign  currency  exposures  and  usually  negotiates  currency  fluctuation  clauses  in  its 
contracts which allow for price negotiation if certain exchange rate triggers occur.

The following significant exchange rates applied during the year:

Euro:US Dollar
Pound Sterling: US Dollar

Average Rate

Closing Rate

2023

1.0795
1.2382

2022

1.0512
1.2347

2023

1.1039
1.2731

2022

1.0705
1.2083

A  simultaneous  ten  percent  strengthening  or  weakening  of  the  US  Dollar,  Euro  and  Sterling  against  all  other  currencies 
(which  remained  constant)  would  have  increased  or  decreased  profit  by  $104.4  million,  $25.0  million  and  $72.1  million 
respectively  (31  December  2022:  $37.2  million,  $19.6  million  and  $22.1  million  respectively)  as  a  consequence  of  the 
retranslation of foreign currency denominated financial assets and liabilities at those dates. This change in profit is excluding 
the effect of foreign currency denominated long term loans.

Interest rate risk

The Group is exposed to interest rate risk in respect of our cash and cash equivalents and available for sale investments. 
Our  treasury  function  actively  manages  our  available  cash  resources  and  invests  significant  cash  balances  to  ensure 
optimum returns for the Company. Financial instruments are classified either as cash and cash equivalents or current asset 
investments depending upon the maturity of the related investment. Funds may be invested in the form of floating rate notes 
and medium term minimum “A-” rated corporate securities. We may be subject to interest rate risk in respect of interest rate 
changes  on  amounts  invested.  Interest  rate  risk  is  managed  by  monitoring  the  composition  of  the  Company’s  investment 
portfolio on an ongoing basis having regard to current market interest rates and future trends.

In  conjunction  with  the  completion  of  the  Merger,  on  1  July  2021,  ICON  entered  into  a  credit  agreement  providing  for  a 
senior secured term loan facility of $5,515 million and a senior secured revolving loan facility in an initial aggregate principal 
amount  of  $300  million  (the  "Senior  Secured  Credit  Facilities").  As  of  31  December  2023,  $2,264  million  of  the  senior 
secured term loan facility has been repaid from cash generated by the Company in the period since the completion of the 
Merger.  On  2  May  2023,  the  Company  agreed  with  its  lenders  to  increase  the  aggregate  principal  amount  of  the  senior 
secured revolving loan facility from $300 million to $500 million. 

As at the 31 December 2023, the outstanding principal amount of the Senior Secured Term Loan Facility was $3,251 million. 
The  applicable  interest  rate  for  the  next  quarterly  interest  period  is  expected  to  be  7.860%  Borrowings  under  the  Senior 
Secured Term Loan facility amortise in equal quarterly instalments in an amount equal to 1.00% per annum of the principal 
amount, with the remaining balance due at final maturity. The interest rate margin applicable to borrowings under the senior 
secured term loan facility is USD Term SOFR and a Term SOFR Adjustment depending on the interest period chosen plus 
an applicable margin of 2.25%. The Senior Secured Term Loan Facility is subject to a floor of 0.50%.

In addition to the Senior Secured Facilities, on 1 July 2021, the Company issued $500 million in aggregate principal senior 
notes  in  a  private  offering.  The  Senior  Secured  Notes  will  mature  in  July  2026  and  pay  a  fixed  semi  annual  coupon  to 
investors of 2.875% per annum. This debt is not subject to movements in interest rate conditions.

We regularly evaluate our debt arrangements, as well as market conditions, and we will explore the opportunity to modify 
our  existing  arrangements  or  pursue  additional  financing  arrangements  that  may  result  in  the  issuance  of  new  debt 
securities by us or our affiliates.

The  sensitivity  analysis  below  represents  the  hypothetical  change  in  the  interest  income  and  interest  expense  of  a  1% 
movement in market interest rates.

As reported

1% Increase

1% Decrease

*Interest expense excludes interest on lease liabilities.

Interest Income

Interest Expense*

2023

$’000

5,014   

8,073   

1,953   

2022

$’000

2,345   

8,322   

2023

$’000

336,699   

376,036   

1   

297,362   

2022

$’000

229,731 

277,546 

181,982 

111 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

26. Financial instruments (continued)

Derivatives
The Company has entered into interest rate cap and swap agreements for purposes of managing its exposure to interest 
rate fluctuations. These financial derivative agreements are designated as Cash Flow Hedges.

On  29  November  2022,  the  Company  entered  into  two  interest  rate  cap  agreements  ("2022  Caps")  with  an  initial  total 
notional  value  of  $2,101  million  to  limit  its  exposure  to  changes  in  the  variable  interest  rate  on  its  Senior  Secured  Credit 
Facilities.  Interest  on  the  2022  Caps  began  accruing  on  30  December  2022  and  the  interest  rate  cap  expires  on  31 
December 2024. The Company pays a fixed rate of 0.42% and receives a variable rate equal to the amount that the three-
month SOFR rate exceeds 4.75%.

On 29 November 2022, the Company entered into an interest rate swap agreement ("2022 Swap") with an initial notional 
value of $1,101 million to limit its exposure to changes in the variable interest rate on its Senior Secured Credit Facilities. 
Interest  on  the  2022  Swap  begins  accruing  on  31  December  2024  and  the  interest  rate  swap  expires  on  30  September  
2026. The Company will pay a fixed rate of 3.4% and receive a variable rate of interest equal to the three-month SOFR on 
the 2022 Swap.

The critical terms of the caps and swap are substantially the same as the underlying borrowings. The interest rate caps and 
swap  are  accounted  for  as  cash  flow  hedges  as  these  transactions  were  executed  to  hedge  the  Company's  interest 
payments  and  for  accounting  purposes  are  considered  highly  effective.  As  such,  the  effective  portion  of  the  hedges  is 
recorded as unrealised gains/(losses) on derivatives in Other Reserves.

The  fair  value  of  these  cash  flow  hedges  represents  the  present  value  of  the  anticipated  net  payments  the  Company  will 
make  to  the  counterparty,  which,  when  they  occur,  are  reflected  as  interest  expense  in  the  consolidated  statement  of 
income.  

The fair values of the Company’s derivative financial instruments, on a gross basis, are summarized in the following table:

31 December 2023

31 December 2022

Asset

$'000

Liability

Notional

$'000

$'000

Asset

$'000

Liability

Notional

$'000

$'000

Derivatives designated as hedging instruments:

Interest Rate Caps

Interest Rate Swap

Total derivatives designated as hedging 
instruments

—   

—   

—   

1,871    1,600,606 

540    1,100,606 

12   

—   

3,363    2,100,606 

307    1,100,606 

2,411    2,701,212 

12   

3,670    3,201,212 

As of 31 December 2023, the Company recognised a current derivative liability of $1.9 million within other liabilities (2022: 
$3.3  million  within  other  liabilities  and  $0.01  million  within  other  receivables)  and  a  non  current  derivative  liability  of  $0.5 
million (2022: $0.4 million) within non-current other liabilities. 

During  the  year  ended  31  December  2023,  the  Company  recognised  a  gain  of  $1.6  million  within  the  Statement  of 
Comprehensive  Income  (2022:  $3.7  million  loss)  after  a  reclassification  of  $2.4  million  from  Other  Reserves  to  the 
Statement of Profit and Loss (2022: $0.1 million).

During  2024,  the  Company  estimates  that  an  additional  $3.2  million  million  will  be  reflected  as  interest  expense  in  the 
Consolidated Statement of Profit and Loss. 

Fair values
Certain financial instruments are measured in the Statement of Financial Position at fair value using a fair value hierarchy of 
valuation inputs. The fair value of financial assets together with the carrying amounts shown in the Statement of Financial 
Position is as follows:

112 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

26. Financial instruments (continued)

31 December 2023

31 December 2022

Carrying 
Amount

Level 1

Level 2

Level 3

Carrying 
Amount

Level 1

Level 2 

Level 3

$’000

$’000

$’000

$'000

$’000

$’000

$’000

$’000

Financial assets measured at fair value

Financial assets at fair value 
through other comprehensive 
income
Financial assets at fair value 
through profit and loss

Derivative instruments at fair 
value through other 
comprehensive income
Total Assets

1,954   

1,954   

—   

—   

1,713   

1,713   

—   

— 

  46,804   

—   

—    46,804    32,631   

—   

—    32,631 

—   

—   

—   

—   

12   

—   

12   

— 

  48,758   

1,954   

—    46,804    34,356   

1,713   

12    32,631 

Financial liabilities measured at fair value

Derivative instruments at fair 
value through other 
comprehensive income
Total Liabilities 

(2,411)  

—   

(2,411)  

—   

(3,670)  

—   

(3,670)  

(2,411)  

—   

(2,411)  

—   

(3,670)  

—   

(3,670)  

— 

— 

The carrying values of accounts receivable (less provision for loss), unbilled revenue (contract assets), other current assets, 
cash and cash equivalents and other non-current assets are carried at amortised cost and assumed to be approximate to 
their fair values due to the short-term nature of these balances. As such their fair values have not been disclosed. 

Current asset investments carried at fair value result in gains or losses being recognised in the Consolidated Statement of 
Comprehensive Income. The fair value of current asset investments is their market price at the financial year end date. They 
are measured on the basis of Level 1 inputs.

Long-term financial assets carried at fair value result in gains or losses being recognised in the Consolidated Statement of 
Profit  and  Loss.  The  fair  value  of  long-term  financial  assets  meet  the  definition  of  equity  securities  without  readily 
determinable fair values and are measured on the basis of level 3 inputs as the funds are not traded on an exchange and 
data is not published in respect of the funds. The valuation model is based on the net asset value of the fund as prepared by 
an independent appraiser. 

The  carrying  values  of  accounts  payable,  accrued  and  other  liabilities  and  provisions  and  other  non-current  liabilities  are 
carried at amortised cost and assumed to be approximate to their fair values.

Each category of asset and liability has remained within the same level of hierarchy as the prior year as there has been no 
change in the extent to which the inputs used in measuring fair value are or are not observable within the market. 

The following table shows reconciliation from the opening balances to the closing balances for Level 3 fair values:

Opening balance

Additions/(payments) made during the year

 Increase in fair value

Closing balance

31 December 
2023

31 December 
2022

$’000

32,631   

13,954   

219   

$’000

22,592 

5,612 

4,427 

46,804   

32,631 

There have been no transfers between level 1/2 financial instruments and level 3 financial instruments during the current or 
prior financial year.

113 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

27. Leases

Right-of-use assets

The Group has recorded the following for right-of-use assets:

Depreciation charge for 2023

Right-of-use assets at 31 December 2023

Depreciation charge for 2022

Right-of-use assets at 31 December 2022

Premises

Equipment

$'000

$'000

Motor 
vehicles

$'000

Total

$'000

38,728   

123,378   

42,847   

137,519   

200   

444   

207   

3,054   

41,982 

13,442   

137,264 

2,161   

45,215 

1,194   

12,486   

151,199 

Additions to right-of-use assets during 2023, net of early termination options now reasonably certain to be exercised, were 
$37.7 million (2022: $28.7 million).

The weighted average remaining lease term at 31 December 2023 was 6.72 years (2022: 6.90 years).

During the year ended 31 December 2023, as a result of office consolidations, certain ROU assets have been impaired to 
the extent they are considered onerous and an impairment loss of $8.7 million was recorded (2022: $24.5 million). See note 
9 Exceptional items.

Lease liabilities

Set out below are the carrying amounts of lease liabilities at each reporting date. Current lease liabilities have been included 
in accrued and other liabilities on the balance sheet. 

Current

Non-Current

Total 

31 December 
2023

31 December 
2022

$’000

36,414   

$’000

43,656 

126,321   

131,644 

162,735   

175,300 

Total lease payments for the year ended 31 December 2023 were $53.8 million (2022: $54.6 million). 

Future minimum lease payments under non-cancelable leases as of 31 December 2023 were as follows: 

2024

2025

2026

2027

2028

Thereafter

Total future minimum lease payments 

Lease imputed interest

Total

31 December 
2023

$'000

40,894 

34,585 

29,172 

23,254 

15,023 

33,998 

176,926 

(14,191) 

162,735 

114 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

27. Leases (continued)

Amounts recognised in profit or loss

The following amounts were recognised in profit and loss:

Depreciation of right-of-use assets

Interest on lease liabilities

31 December 
2023

31 December 
2022

$'000

41,982   

4,172   

$'000

45,215 

4,470 

Of  the  total  cost  of  $46.2  million  incurred  in  the  year  ended  31  December  2023,  $34.9  million  is  recorded  within  other 
operating expenses, $7.1 million is recorded within direct costs and $4.2 million is recorded within financing expense. During 
2023, the Group had income from sub-leases of $1.1 million.

Of  the  total  cost  of  $49.7  million  incurred  in  the  year  ended  31  December  2022,  $41.6  million  is  recorded  within  other 
operating expenses, $3.6 million is recorded within direct costs and $4.5 million is recorded within financing expense. During 
2022, the Group had income from sub-leases of $1.2 million.

During the year ended 31 December 2023 and the year ended 31 December 2022, the Group did not incur any costs related 
to variable lease payments or short-term leases.

28. Commitments and contingencies

a)  Capital commitments

The following capital commitments for the purchase of property, plant, equipment and computer software were authorised by 
the Group at 31 December 2023 and 31 December 2022:

Contracted for

Total

(b)  Contractual obligations

31 December
2023

31 December
2022

$’000

101,653

101,653

$’000

86,478

86,478

The following represents Group contractual obligations and commercial commitments as at 31 December 2023:

Capital commitments

Total contractual obligations

Payments due by period

Total

$’000

101,653   

101,653   

Less than
1 year

$’000

93,256   

93,256   

1 to 5
years

$’000

8,397   

8,397   

More than
5 years

$’000

— 

— 

The  Group  expects  to  spend  between  $150  million  to  $200  million  in  the  next  12  months  on  further  investments  in 
information  technology  comprising  both  capital  authorised  and  contracted  and  capital  authorised  and  not  contracted. The 
Group believes that it will be able to fund additional foreseeable cash needs for the next twelve months from cash flow from 
operations  and  existing  cash  balances.  In  the  future,  the  Group  may  consider  acquiring  businesses  to  enhance  service 
offerings and global presence. Any such acquisitions may require additional external financing and the Group may, from time 
to time, seek to obtain funds from public or private issues of equity or debt securities. There can be no assurance that such 
financing will be available on terms acceptable to the Group.

115 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

28. Commitments and contingencies (continued)

The  Company  entered  into  subscription  agreements  with  a  number  of  funds  (see  note  19  Financial  asset  investments). 
During  the  year  ended  31  December  2023,  capital  totalling  $14.0  million  had  been  advanced  under  the  terms  of  the 
subscription agreements (2022: $3.7 million). The Company had committed to future investments of $66.4 million in respect 
of these funds. The timing of the commitment is not specified in the subscription agreements. 

(c)  Guarantees

(i) Guarantees in respect of borrowings of subsidiaries

ICON plc and certain other subsidiaries within the Group have guaranteed the Senior Secured Credit Facilities and Senior 
Secured Notes as set out in note 23 Bank credit lines and loan facilities. The Group does not expect any material loss to 
arise from these guarantees.

(ii) Section 357 Guarantees

The Company has guaranteed all of the commitments and liabilities referred to in Section 357(1) (b) of the Companies Act in 
respect  of  the  whole  of  the  financial  year  ending  31  December  2023  for  the  subsidiary  companies  listed  below.  These 
subsidiaries are availing of the exemption under Section 357 of the Companies Act not to file statutory financial statements. 

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

ICON Clinical Research Limited
DOCS Resourcing Limited 
ICON Holdings Unlimited Company
ICON Clinical Research Property Holdings (Ireland) Limited
ICON Clinical Research Property Development (Ireland) Limited
ICON Holdings Clinical Research International Limited
ICON Clinical International Unlimited Company
ICON Investments Four Unlimited Company
Accellacare Limited
ICON Global Treasury Unlimited Company
ICON Clinical Global Holdings Unlimited Company
ICON Operational Financing Unlimited Company
ICON Operational Holdings Unlimited Company
Research Pharmaceutical Services (Outsourcing Ireland) Limited
ICON Clinical Research Holdings (Ireland) Unlimited Company
Oncacare Limited 

29.  Litigation

The Group is not party to any litigation or legal proceedings that the Group believes could reasonably be expected to have a 
material adverse effect on the Group’s business, results of operations and financial position. However, from time to time, we 
may become involved in various lawsuits and legal proceedings which arise in the ordinary course of business. Litigation is 
subject to inherent uncertainties, and an adverse result in these or other matters may arise from time to time that may harm 
our business.

116Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

30.  Related parties

(i)  Transactions with Directors and Executive Officers

The  total  compensation  of  the  Directors  and  Executive  Officers  (key  management  remuneration)  for  the  years  ended 
31 December 2023 and 2022 was as follows:

Salary and fees

Bonus

Other benefits

Pension contributions

Share-based payment expense

Total

31 December
2023

31 December
2022

$’000

2,891   

1,578   

62   

198   

8,583   

13,312   

$’000

3,078 

1,515 

61 

195 

10,496 

15,345 

Details  of  ordinary  shares,  share  options,  RSUs  and  PSUs  held  by  the  Directors  and  Executive  Officers  and  details  of 
transactions entered into by Directors and Key Executive Officers in shares and share options of the Company during the 
year ended 31 December 2023 are set out in note 10 Payroll and related benefits. 

 (ii)  Other related party transactions

Subsidiaries  of  the  Company  earned  revenue  of  $243,000  (31  December  2022:  $428,000)  from  Corvus  Pharmaceuticals 
during the year. Dr. Linda Grais serves as a Director and shareholder of Corvus Pharmaceuticals. $101,000 (31 December 
2022: $231,000) was noted as due from Corvus Pharmaceuticals at 31 December 2023. 

Subsidiaries of the Company earned revenue of $45,000 (31 December 2022: $235,000) from Afimmune Limited  during the 
year. Dr. John Climax is Chief Executive Officer and a Director and shareholder of Afimmune Limited. $47,000 was noted as 
due from Afimmune Limited at 31 December 2023 (31 December 2022: $263,000). 

On  24  July  2020,  a  subsidiary  of  the  Company,  ICON  Clinical  Research  Limited,  entered  into  an  agreement  to  jointly 
establish  a  new  company,  Oncacare  Limited  ("Oncacare"),  a  specialised  oncology  site  network  in  the  US  and  EMEA 
regions,  with  a  third  party.  The  Company  invested  $4.9  million  to  obtain  a  49%  interest  in  the  voting  share  capital  of 
Oncacare.  On  20 April  2023,  the  Company  completed  the  purchase  of  the  majority  investor’s  51%  majority  voting  share 
capital of Oncacare. The consideration paid by ICON to purchase the 51% majority voting share capital was $5.1 million. As 
a result of this transaction (the "Oncacare acquisition"), Oncacare and its subsidiaries became wholly owned subsidiaries of 
the  ICON  Group.  Prior  to  the  Oncacare  acquisition,  the  Company  recorded  losses  of  $0.4  million  and  $3.1  million 
representing its pro rata share of the losses in Oncacare during the year ended 31 December 2023 and 31 December 2022, 
respectively. The Oncacare acquisition also resulted in goodwill of $13.4 million and gave rise to an acquisition-related gain 
of $6.2 million. 

31. Subsequent events

The Company has evaluated subsequent events from the Balance Sheet date through 23 April 2024, the date at which the 
consolidated financial statements were available to be issued.

On 20 February 2024, the Company's Board of Directors authorised a new buyback program of up to $500 million of the 
outstanding  ordinary  shares  of  the  Company. All  ordinary  shares  that  are  redeemed  under  the  buyback  program  will  be 
cancelled  in  accordance  with  the  constitutional  documents  of  the  Company  and  the  nominal  value  of  these  shares 
transferred to an undenominated capital fund as required under Irish Company law. Repurchases under the share buyback 
program may be effected from time to time in open market or privately negotiated transactions in accordance with agreed 
terms and limitations. The timing and amount of the repurchase transactions under this program will depend on a variety of 
factors,  including  market  conditions  and  corporate  and  regulatory  considerations.  Depending  upon  results  of  operations, 
market  conditions  and  the  development  of  the  economy,  as  well  as  other  factors,  generally  we  will  consider  share 
repurchases on an opportunistic basis from time to time.  

The Company has determined that there are no other items to disclose.

117 
 
 
 
 
 
Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings 

As at 31 December 2023 the Group had the following principal subsidiary undertakings:

Name

Registered Office**********

ICON Clinical Research S.A.

ICON Clinical Research PTY Limited

Medpass International Pty Ltd

ICON Clinical Research Austria GmbH 

DOCS International Belgium N.V.**

ICON Pesquisas Clínicas LTDA.

ICON Clinical Research EOOD

ICON Clinical Research (Canada) Inc.

Oxford Outcomes LTD.

ICON Life Sciences Canada Inc.

ICON Chile Limitada

ICON Clinical Research (Beijing No.2) Co., 
Ltd

ICON Clinical Research (Beijing) Co., Ltd

Cecilia Grierson 255, Floor 6° 
City of Buenos Aires
C1107CPE
Argentina

Suite 201, 
Level 2, 2-4 Lyon Park Road, 
North Ryde, 
NSW 2113 
Australia

Level 2, 
Pier 8, Shop 9, 
23 Hickson Road, 
Millers Point, 
NSW 2000
Australia

Pyrkergasse 10/6
1190 Vienna
Austria

E19 Business Park
Battelsesteenweg 455D
2800 Mechelen, Belgium

Av. Ibirapuera 2332, 
Torre II 4º Andar, 
São Paulo, SP, 
Brazil, 
CEP 04028-003

2A, Saborna Str., 
4th floor, Sofia – 1000, 
Republic of Bulgaria

7405 Trans-Canada Highway,
Suite 300 Saint-Laurent,
Quebec,  H4T 1Z2
Canada

19th Floor
885 West Georgia Street
Vancouver BC V6C 3H4
Canada

3455 North Service Road
Unit #400
Burlington ON L7N 3G2
Canada

Avenida Mariano Sánchez 
Fontecilla 310
Las Condes
Santiago
Región Metropolitana
7550296
Chile

Floor 2, Building 5, 
Hongda Industrial park, 
No. 8, Hongda North Road, 
Beijing Economic-Technological 
Development Area, 
Beijing

Floor 1
Building No. 5,
No. 8 Hongda North Road,
Beijing Economic-Technologies
Developement Zone,
Beijing, China

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%*

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

118Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

ICON Clinical Research s.r.o.

DOCS International Nordic Countries A/S

DOCS International Finland Oy

ICON Clinical Research S.A.R.L. 

Mapi Research Trust***

ICON Clinical Research Germany GmbH

ICON Clinical Research Hong Kong 
Limited

Accellacare Limited

DOCS Resourcing Limited

ICON (LR) Limited

ICON Clinical Global Holdings Unlimited 
Company 

ICON Clinical International Unlimited 
Company 

ICON Clinical Research Limited

ICON Clinical Research Property 
Development (Ireland) Limited

ICON Clinical Research Property Holdings 
(Ireland) Limited

V parku 2335/20,
Praha 4 - Chodov, 
PSČ 148 00
Czech Republic

c/o BuusMark Advokater
Sankt Ols Gade 4
4000 Roskilde
Denmark

Mannerheimintie 12B, 
00100 Helsinki 
Finland

55 Avenue des Champs 
Pierreux 
Immeuble le Capitole
92000 Nanterre
France

27 rue de la Villette, 
69003 Lyon, 
France

Heinrich-Hertz-Straße 26
63225
Langen 
Hessen
Germany

Unit 4333 & 4335C, 43/F
AIA Tower
183 Electric Road
North Point
Hong Kong

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

South County Business Park,
Leopardstown,
Dublin 18
Ireland

South County Business Park,
Leopardstown,
Dublin 18
Ireland

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

South County Business Park,
Leopardstown,
Dublin 18
Ireland

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Investment holding 
company

100%*

Holding company

100%

Clinical research 
services

100%

Property 
management 
company

Property 
management 
company

100%

100%*

119Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

ICON Holdings Clinical Research 
International Limited

ICON Holdings Unlimited Company 

ICON Investments Five Unlimited 
Company

ICON Investments Four Unlimited 
Company

ICON Operational Financing Unlimited 
Company 

ICON Operational Holdings Unlimited 
Company 

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

South County Business Park,
Leopardstown,
Dublin 18
Ireland

South County Business Park,
Leopardstown,
Dublin 18
Republic of Ireland

South County Business Park,
Leopardstown,
Dublin 18
Ireland

South County Business Park,
Leopardstown,
Dublin 18
Ireland

ICON Global Treasury Unlimited Company South County Business Park, 

Leopardstown, 
Dublin 18, 
Ireland 

Nature of 
business

Proportion held by  
Group

Investment holding 
company

100%

Investment holding 
company

100%

Investment holding 
and financing 
company

100%*

Investment holding 
and financing 
company

100%

Investment holding 
and financing 
company

100%

Investment holding 
company

100%

Investment holding 
and financing 
company

100%

ICON Clinical Research Israel LTD.

Building E, 13th Floor
4 Haharash Street
Hod Hasharon 4524402 Israel

Clinical research 
services

100%

ICON Investments Limited 

ICON Luxembourg S.à r.l.

ICON CRO Malaysia SDN. BHD.

ICON Clinical Research México, S.A. de 
C.V.

DOCS International B.V. ****

ICON Clinical Research (New Zealand) 
Limited

ICON Clinical Research Perú S.A.

22 Grenville Street
St Helier
JE4 8PX
Jersey

61, rue de Rollingergrund
L-2440 Luxembourg

Level 11
1 Sentral
Jalan Rakyat 
Kuala Lumpur Sentral
50470 Kuala Lumpur
Malaysia

Av. Barranca del Muerto 
329 3rd Floor
Col. San Jose Insugentes
03900 Mexico D.F.

Boeing Avenue  62-68
1119PE  Schiphol-Rij
The Netherlands

Level 33, 29 Albert Street, 
Auckland Central, 
New Zealand.

Av. Paseo de la República 5895 
Oficina 606
Miraflores
Lima 18
Perú

Investment holding 
company

100%*

Holding and 
Investment 
Company

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

120Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

ICON Clinical Research Services 
Philippines, Inc.

ICON Clinical Research S.R.L. 

ICON Clinical Research (Rus) LLC

ICON Clinical Research (Pte) Limited

Mapi Life Sciences Singapore Pte. Ltd.

ICON Clinical Research Slovakia, s.r.o.

Accellacare South Africa (PTY) LTD

ICON Clinical Research España, S.L. 

Accellacare España S.L.

24th Floor Salcedo Towers, 
169 H.V. Dela Costa Street, 
Salcedo Village, 
Makati City, 
Philippines 1227

8th Floor, 
246c Caleca Floresca, Sector 1, 
Bucharest 14476 
Romania

Premises 2/4, 9 Zemlyanoy Val, 
Moscow, 105064, 
Russian Federation  

30 Loyang Way
#02/12
Loyang Industrial Estate
508769
Singapore

30 Loyang Way
#02/12
Loyang Industrial Estate
508769
Singapore

Karadžičova 2 Bratislava -
mestskáčasťStaréMesto ,
Slovenská republika, 81109, 
Slovakia

Block 29 Second Floor
The Highlands Estate
The Woodlands
Woodlands Drive
Woodmead, Gauteng
2191
Johannesburg 
South Africa

Calle Josep Pla
Numero 2, Torre Diagonal Mar
Piso 11, Modulo 1
Barcelona
Spain

Calle Marques de Valdavia 103
Portal 5 
28100
Alcobendas 
Madrid 
Spain 

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Dormant

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

DOCS International Sweden AB

Kolonivagen 1
SE-226 60 Lund, Sweden

Clinical research 
services

100%

DOCS International Switzerland GmbH

ICON Clinical Research (Switzerland) 
GmbH

ICON Clinical Research Taiwan Limited 
*****

c/o Experfina AG
Picassoplatz 8
4052 Basel
Switzerland

c/o Experfina AG
Picassoplatz 8
4052 Basel
Switzerland

6th Floor No. 2, Sec 5
Xinyi Road
Xinyl District
Taipei
Taiwan

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

121Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

ICON Clinical Research (Thailand) Limited  1 Empire Tower, 

ICON Ankara Klinik Arastirma Dis Ticaret 
Anonim Sirketi

DOCS Ukraine LLC

ICON Clinical Research LLC

Accellacare UK Limited

DOCS International UK Limited

ICON (LR) Limited

ICON Clinical Research (U.K.) Limited

ICON Clinical Research (U.K.) No. 2 
Limited

ICON Clinical Research (U.K.) No. 3 
Limited

ICON Clinical Research (U.K.) No. 4 
Limited

ICON Clinical Research (U.K.) No. 5 
Limited 

ICON Development Solutions Limited

ICON Investments (UK) Ltd

Improving Treatments Limited 

24th Floor, Unit 2408, 
South Sathorn Road, 
Yannawa, Sathorn, 
Bangkok, 10120
Thailand

Söğütözü mah. 
Eskişehir Yolu Cad. 2176. SK 
No:9 
Posta Kodu:06510 
Çankaya Ankara
Turkiye 

4th Floor,
St. Poleva 24,
Kiev,
Ukraine, 03056

4th Floor,
St. Poleva 24,
Kiev,
Ukraine, 03056

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

122Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Medeval Group Limited

MeDiNova Lakeside Clinical Research 
Limited 

MeDiNova Merc (UK) Limited 

VSK (Kenilworth) Limited 

ICON Clinical Research (U.K.) No. 6 
Limited

ICON Clinical Research, LP

ICON Early Phase Services, LLC 

Addplan, Inc.

Beacon Bioscience, Inc 

C4 MedSolutions, LLC 

CHC Group, LLC

CRN Holdings, LLC

Global Pharmaceutical Strategies Group, 
LLC 

ICON Clinical Investments, LLC

ICON Clinical Research LLC

ICON Laboratory Services, Inc.

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

8307 Gault Lane,
San Antonio,
TX 78209-1015
United States

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

3 Parkway North
Suite 200 
Deerfield, IL 60015
United States

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Holding company

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Holding company

100%

Clinical research 
services

100%

Clinical research 
services

100%

Investment 
Company

100%

100%

100%

731 Arbor Way Suite 100 Blue 
Bell, PA United States, 19422

Clinical research 
services

123 Smith Street,
Farmingdale,
NY 11735
United States

Clinical research 
services

123Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

ICON Tennessee, LLC

ICON US Holdings Inc. 

MMMM Consulting, LLC

MMMM Group, LLC 

MolecularMD Corp.

PriceSpective LLC

PubsHub LLC 

Accellacare of Christie Clinic, LLC

DOCS Global, Inc.

320 Seven Springs Way,
Suite 500,
Brentwood,
TN 37027

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

101 West University Avenue
Champaign
IL 61820
United States

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

Managed Care Strategic Solutions, L.L.C.  731 Arbor Way

Accellacare of Charlotte, LLC

Accellacare of Hickory, LLC

Accellacare of Raleigh, LLC

Accellacare of Rocky Mount, LLC

Accellacare of Salisbury, LLC

Suite 100
Blue Bell, PA
United States, 19422           

3541 Randolph Road
Suite 101W
Charlotte
North Carolina 28211
USA

221 13th Ave Place NW
Suite 201
Hickory 
North Carolina 28601
United States

3521 Haworth Drive
Suite 100
Raleigh
North Carolina 27609
United States

901 N. Winstead Avenue
Rocky Mount
North Carolina 27804
United States

410 Mocksville Avenue
Salisbury
North Carolina 28144
United States

Nature of 
business

Proportion held by  
Group

Holding company

100%

Holding Company  100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

124Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Accellacare of Wilmington, LLC

Accellacare of Winston-Salem, LLC

Accellacare US Inc. 

Complete Healthcare Communications 
LLC

Complete Publication Solutions, LLC 

Accellacare of Charleston, LLC

Accellacare of Bristol, LLC

ICON Government and Public Health 
Solutions, Inc.

RPS Research S.A.

Pharmaceutical Research Associates Pty 
Limited

RPS Research Austria GmbH

IMP-Logistics Bel, FLLC

Pharmaceutical Research Associates 
Belgium B.V. ******

RPS Bermuda, Ltd.

RPS do Brasil Serviços de Pesquisas 
LTDA.

1907 Tradd Court
Wilmington
North Carolina 28401
United States

1901 S. Hawthorne Road
Suite 306
Winston-Salem
North Carolina 27103
United States

1901 S. Hawthorne Road
Suite 306
Winston-Salem
North Carolina 27103
United States

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

180 Wingo Way
Suite 203
Mt. Pleasant
South Carolina 29464
United States

1958 West State Street
Bristol
Tennessee 37620
United States

1265 Ridge Road, Suite A
Hinckley
OH 44233
United States

Cecilia Grierson 255               
Floor 6
City of Buenos Aires     
C1107CPE                     
Argentina

C/- ICON Clinical Research Pty 
Ltd.
Suite 201, Level 2
2-4 Lyon Park Road 
Macquarie Park NSW 2113 
Australia

Tegetthoffstraße  7
1010 Vienna, Austria

28, Malinina st. bld.4, Liter A 1-2/
k, 
Office #3, Minsk Republic of 
Belarus 220101

E19 Business Park
Battelsesteenweg 455D
2800 Mechelen, Belgium

Victoria Place, 5th Floor
31 Victoria Street
Hamilton HM 10 Bermuda

Av. Ibirapuera 2332, 
Torre II 4º Andar, 
São Paulo, SP, 
Brazil, 
CEP 04028-003

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

100%

100%

Clinical research 
services

100%

Holding company

100%

Clinical research 
services

100%

125Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

RPS China Inc.

Registered Office**********

c/o Tricor Services BVI Limited
P.O. Box 3340
Road Town
Tortola, British Virgin Islands

Nature of 
business

Proportion held by  
Group

Holding company

100%

Pharmaceutical Research Associates 
Bulgaria EOOD

51b Bulgaria Blvd., Floor 4
Sofia, Bulgaria 1404

Clinical research 
services

100%

3065613 Nova Scotia Company

1741 Lower Water Street, Suite 
600
Halifax, Nova Scotia B3J 0J2

Holding company

100%

Pharmaceutical Research Associates ULC 1741 Lower Water Street, Suite 

600
Halifax, Nova Scotia B3J 0J2

Clinical research 
services

100%

Services de Recherche Pharmaceutique 
Srl

1741 Lower Water Street, Suite 
600
Halifax, Nova Scotia B3J 0J2

Clinical research 
services

100%

PRA Health Sciences Chile SpA

PRA Health Sciences China, Inc.

PRA Health Sciences Colombia Ltda.

Research Pharmaceutical Services Costa 
Rica, LTDA.

Miraflores 222 piso 28
Santiago, Chile

Room 301, Floor 3, Building No. 
5, Hongda Industrial Park, No. 8 
Hongda North Road, Beijing
Economic-Technological
Development Area, Beijing

Calle 116 No. 7 – 15 
Torre Cusezar Oficina 1002  
Bogotá 
Cundinamarca 
Colombia
110111

Sabana Business Center, piso 
11
Bulevar Rohrmoser y Calle 68
San José, Costa Rica 10108

Pharm Research Associates d.o.o. za 
klinicka ispitivanja

Radnička cesta 180, 
10 000 Zagreb, Croatia

Pharmaceutical Research Associates 
Denmark ApS

RPS Estonia OÜ

c/o BuusMark Advokater
Sankt Ols Gade 4
4000 Roskilde
Denmark

Pärnu road 22
10141 Tallinn, Republic of 
Estonia

Pharmaceutical Research Associates 
Finland Oy

Vattuniemenranta 2
00210 Helsinki, Finland

ReSearch Pharmaceutical Services France 
S.A.S.

55 Avenue des Champs 
Pierreux 
Immeuble le Capitole
92000 Nanterre
France

Clinical research 
services

Clinical research 
services

100%

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

100%

100%

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

100%

100%

IMP Logistics Georgia LLC

Pharmaceutical Research Associates 
Georgia LLC

Pharmaceutical Research Associates 
Greece A.E.

Mtatsminda District
Freedom Square N4 (Plot 66/4)
Tbilisi, Georgia

Clinical research 
services

100%

42-42a (Building No. 1)
Alexander Kazbegi Avenue
Vake-Saburtalo District
Tbilisi, Georgia

81 Ifigeneias Street
Nea Ionia 142 31 
Attikis, Athens, Greece

Clinical research 
services

100%

Clinical research 
services

100%

126Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

RPS Guatemala, S.A.

5 Avenida 5-55, Zona 14
Edificio Europlaza World 
Business Center
Torre II, Nivel 9
Guatemala City, Guatemala

PRA Health Sciences (Hong Kong) Limited Unit 4321 & 4336A, 43/F

RPS Iceland ehf.

Pharmaceutical Research Associates India 
Private Limited*******

Research Pharmaceutical Services 
(Outsourcing Ireland) Limited

Pharmaceutical Research Associates 
Israel Ltd.

Pharmaceutical Research Associates Italy 
S.r.l.

PRA Health Sciences Kenya Limited

RPS Latvia SIA

UAB RPS Lithuania

RPS Malaysia Sdn. Bhd.

Pharmaceutical Research Associates 
Mexico S. de R.L. de C. V. ********

AIA Tower, 183 Electric Road
North Point, Hong Kong

Skipholti 50D
105 Reykjavik, Iceland

Regus Kaledonia, Unit No 1B
Office No 538, Floor 5 Sahar 
Road
Off Western Express Highway 
Andheri(E) Mumbai
Mumbai City
400059 IN
India

South County Business Park,
Leopardstown,
Dublin 18
Ireland

Building E, 13th Floor
4 Haharash Street
Hod Hasharon 4524402 Israel

Via Porlezza,  No. 12
Milan
20123 
Italy

LR No. 1870/1/176, ALN House, 
Eldama Ravine Close,
off Eldama Ravine Road, 
Westlands
PO Box 764, Sarit Centre, 
Nairobi, Kenya 00606

Blaumaņa iela 22 
1011 Riga, Latvia 

Upês street 21, 
LT-08128 Vilnius, Lithuania

Level 13, Menara 1 Sentrum
201, Jalan Tun Sambanthan
Brickfields
50470 Kuala Lumpur
Wilayah Persekutuan
Malaysia

Ave. Insurgentes Sur No. 1602, 
Desp. 503
Col. Credito Constructor Mexico
Benito Juarez, Distrito Federal
C.P. 03940 Mexico

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

100%

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

Clinical research 
services

100%

100%

100%

Clinical research 
services

100%

RPS Research México, S. de R.L. de C.V. Ave. Insurgentes Sur No. 1602, 

Holding company

100%

RPS Research Servicios, S. de R.L. de 
C.V.

Pharmaceutical Research Associates 
Group B.V.

Desp. 502
Col. Credito Constructor Mexico
Benito Juarez, Distrito Federal
C.P. 03940 Mexico

Ave. Insurgentes Sur No. 1602, 
Desp. 502
Col. Credito Constructor Mexico
Benito Juarez, Distrito Federal
C.P. 03940 Mexico

Van Swietenlaan 6
9728 NZ, Groningen
The Netherlands

Clinical research 
services

100%

Clinical research 
services

100%

127Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Nature of 
business

Proportion held by  
Group

PRA International Operations B.V.

ReSearch Pharmaceutical Services 
Netherlands B.V.

Pharmaceutical Research Associates New 
Zealand Limited

RPS Research Norway AS

RPS Panama Inc.

RPS Perú S.A.C.

RPS Research Philippines, Inc.

Van Swietenlaan 6
9728 NZ, Groningen
The Netherlands

Eduard van Beinumstraat 28, 
2 Amsterdam Tower, 12e 
verdieping, 1077CZ 
Amsterdam

Grant Thornton New Zealand 
Limited, 
L3, 134 Oxford Terrace, 
Christchurch, 8140 , New 
Zealand

c/o EconPartner AS
Dronning Mauds gate 15
0250 Oslo, Norway 

Urbanización Nuevo Reparto el 
Carmen No. 58
Calle Primera, Edificio Moreno & 
Moreno. Local Planta Baja,
Distrito de Panamá, Panamá

Av. Paseo de la República 5895 
Oficina 606
Miraflores
Lima 18
Perú

24th Floor,
Salcedo Towers
.V. Dela Costa St
Barangay Bel-Air
Salcedo Village
 City, Philippines

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Pharmaceutical Research Associates Sp. z 
o.o.

Proximo 1, ul. Prosta 68
Warsaw
Poland

PRA International Portugal, Unipessoal, 
Lda.

Av. da Republica, 50-10
1069-211, Lisboa, Portugal

Research Pharmaceutical Services Puerto 
Rico, Inc.

Pharmaceutical Research Associates 
Romania S.R.L.

Joint Stock Company IMP Logistics 

257 Calle Tetuan
2nd Floor
San Juan
00901
Puerto Rico

8th Floor, Sky Tower
246c Caleca Floresca
Bucharest 14476 Romania

8, Energetikov str, v. Lesnoy 
Gorodok Odintsovsky city 
disctrict
Moscow region Russia 143080

Pharmaceutical Research Associates 
Singapore Pte. Ltd.

#02-06/10, 21 Biopolis Road
Nucleos, Singapore 138567

Pharmaceutical Research Associates SK 
s.r.o.

PRA Pharmaceutical S A (Proprietary) 
Limited

Karadžičova 2 Bratislava -Old 
Town District
Slovenská republika, 81109, 
Slovakia

2nd Floor Building 29 Highlands 
Estate
Woodlands Office Park
20 Woodlands Drive Woodmead
Gauteng 2191 South Africa

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

100%

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

100%

100%

Clinical research 
services

100%

128Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Pharmaceutical Research Associates 
Korea Limited

Pharmaceutical Research Associates 
España, S.A.U.

RPS ReSearch Ibérica, S.L.U.

RPS Spain S.L.

PRA International Sweden AB

PRA Switzerland AG

Pharmaceutical Research Associates 
Taiwan, Inc.

RPS Research (Thailand) Co., Ltd.

142 Taeheran-ro 
Gangnam-gu, 
18th Floor (Yeoksam-dong, 
Capital Tower)
Seoul
Republic of Korea

Avenida de Europa, 19
Edificio 1, 2a Planta
Pozuelo de Alarcon (Madrid)
Spain 28224

Avenida de Europa, 19
Edificio 1, 2a Planta
Pozuelo de Alarcon (Madrid)
Spain 28224

Avenida de Europa, 19
Edificio 1, 2a Planta
Pozuelo de Alarcon (Madrid)
Spain 28224

Kolonivagen 1
SE-226 60 Lund, Sweden

Lange Gasse 15
Basel 4052 Switzerland

Aurora Building, 5th Floor
No. 2, Sec 5, Xinyi Road, 
Xinyi District, Taipei, Taiwan

24th Floor, Empire Tower, Tower 
3
Unit 2408, 1 South Sathorn 
Road
Yannawa Sub-District, Sathorn 
District
Bangkok 10120 Thailand

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

Clinical research 
services

Clinical research 
services

100%

100%

100%

Clinical research 
services

100%

Pra Turkey Sağlik Araştirma Ve Geliştirme 
Limited Şirketi 

Kisikli Caddesi; No. 28, K:1-2
Altunizade, Istanbul
Turkey 34662

Clinical research 
services

100%

Pharmaceutical Research Associates 
Ukraine, LLC

IMP Logistics UK Limited

4th Floor,
St. Poleva 24,
Kiev,
Ukraine, 03056

Cannon Place, 78 Cannon 
Street
London EC4N 6AF England

Pharm Research Associates (UK) Limited Cannon Place, 78 Cannon 

Sterling Synergy Systems Limited

ClinStar LLC

Nextrials, Inc.

Street
London EC4N 6AF England

Cannon Place, 78 Cannon 
Street
London EC4N 6AF England

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

Clinical research 
services

100%

Clinical research 
services

100%

Clinical research 
services

100%

Holding company

100%

Clinical research 
services

100%

731 Arbor Way, Suite 100
Blue Bell, PA 19422 

Clinical research 
services

100%

Pharmaceutical Research Associates CIS, 
LLC 

Pharmaceutical Research Associates 
Eastern Europe, LLC 

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

Clinical research 
services

100%

Clinical research 
services

100%

Care Innovations, Inc.

950 Iron Point Road, Ste. 160
Folsom, CA 95630

Clinical research 
services

100%

129Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Nature of 
business

Proportion held by  
Group

950 Iron Point Road, Ste. 160
Folsom, CA 95630

Clinical research 
services

Care Innovations, LLC

CRI NewCo, Inc.

CRI Worldwide, LLC

International Medical Technical 
Consultants, LLC

Parallel 6, Inc.

PRA Early Development Research, Inc. 

PRA Health Sciences, Inc.

PRA Holdings, Inc.

PRA International, LLC

PRA Receivables, LLC

ReSearch Pharmaceutical Services, LLC

ReSearch Pharmaceutical Services, Inc.

Roy RPS Holdings LLC

RPS Global Holdings, LLC

RPS Parent Holding LLC

Source Healthcare Analytics, LLC

Sunset Hills, LLC

Symphony Health Solutions Corporation

CRI International, LLC

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

100%

100%

Clinical research 
services

Clinical research 
services

100%

Holding company

100%

4131 Parklake Avenue, Suite 
600, Raleigh, North Carolina 
27612

Clinical research 
services

100%

9755 Ridge Drive
Lenexa, Kansas 66219

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

731 Arbor Way, Suite 100
Blue Bell, PA 19422 

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

731 Arbor Way, Suite 100
Blue Bell, PA 19422 

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

731 Arbor Way
Suite 100
Blue Bell, PA 19422

4131 Parklake Avenue
Suite 600
Raleigh, NC 27612

Clinical research 
services

Clinical research 
services

100%

100%

Holding company

100%

Holding company

100%

Holding company

100%

Clinical research 
services

100%

Clinical research 
services

100%

Holding company

100%

Holding company

100%

Holding company

100%

Clinical research 
services

100%

Holding company

100%

Clinical research 
services

100%

Clinical research 
services

100%

Lifetree Clinical Research, LC

1255 East 3900 South, Salt 
Lake City, Utah 84124

Clinical research 
services

100%

130Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Pharmaceutical Research Associates, Inc. 4131 Parklake Avenue

Suite 600
Raleigh, NC 27612

Nature of 
business

Proportion held by  
Group

Clinical research 
services

100%

RPS Global S.A.

RPS Latin America S.A

PRA Clinical Limited*********

Plaza Cagancha 1145, 4th Floor 
Montevideo, Uruguay 11100

Clinical research 
services

Plaza Cagancha 1145, 4th Floor 
Montevideo, Uruguay 11100

Clinical research 
services

South County Business Park,
Leopardstown,
Dublin 18
Ireland

Clinical research 
services

100%

100%

100%

ICON Clinical Research Holdings (U.K.) 
Limited

500 South Oak Way Green Park 
Reading RG2 6AD United 
Kingdom

Investment holding 
company

100%

ICON Clinical Research Holdings (Ireland) 
Unlimited Company

South County Business Park,
Leopardstown,
Dublin 18
Ireland

RPS do Brasil Serviços de Pesquisas Ltda.  Av. Ibirapuera 2332,

Torre II 4º Andar,
São Paulo, SP,
Brazil,
CEP 04028-003

Investment holding 
company

100%

Clinical research
services

100%

ICON Clinical Research Czech Republic 
s.r.o. 

Prague 7, 
Jankovcova 1569/2c, 170 00, 
Czech Republic

Clinical research
services

100%

ICON Clinical Research Egypt Limited 
Liability Company

Oncacare France SAS

Oncacare (Germany) GmbH 

40 Road 254, Shell Building, 5th
Floor
Degla, Maadi, 11431 Cairo,
Egypt
Maadi 11431, Cairo, Egypt

Immeuble le Capitole
55 Avenue des Champs Pierreux
92000
Nanterre
France

Heinrich-Hertz-Strabe 26
63225
Langen 
Hessen
Germany

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Averion Europe GmbH i.L

Konrad-Zuse-Platz 11
81829 München
Germany

Clinical research
services

100%

ICON Clinical Research Limited Liability 
Company

Szepvolgyi ut 39
HU-1037 Budapest
Hungary

Clinical research
services

100%

131Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Oncacare Limited

South County Business Park
Leopardstown
Dublin 18
D18 X5R3
Ireland

Nature of 
business

Proportion held by  
Group

Clinical research
services

100%

Oncacare Italy S.r.l

Via Benigno Crespi, n. 19, 
20159, Milano
Italy

Clinical research
services

100%

ICON Clinical Research GK

1-3 Kyutaro-machi 4-chome,
Chuo-ku, Osaka 541-0056
Japan

Clinical research
services

100%

Symphony Clinical Research Sp z.o.o.

ICON Clinical Research Poland Sp z o.o.

ICON Clinical Research doo Beograd

Pharmaceutical Research Associates doo 
Belgrade 

RPS Research South Africa (Proprietary) 
Limited 

ul. Potokowa 26
80-283
Gdansk
Poland

Proximo 1
ul. Prosta 68
Warsaw
Poland

4th Floor,
Bulevar Zorana Djindjica 64a,
11070 Belgrade,
Serbia

19th Avenue
Vladimira Popovica 38-40
Belgrade, 11070 Serbia

15 Greenwich Grove, Station
Road, Rondebosch, Western
Cape, 7700, South Africa

Mapi Korea Yuhan Hoesa/ Mapi Korea LLC 16th Floor

ICON Clinical Research Korea Limited

Oncacare (Spain), S.L.

396 Seocho-daero
Seocho-gu
Seoul 06619
Republic of Korea

142 Taeheran-ro
Gangnam-gu,
18th Floor (Yeoksam-dong,
Capital Tower)
Seoul
Republic of Korea

Calle Josep Pla
Numero 2, Torre Diagonal Mar
Piso 11, Modulo 1
Barcelona
Spain

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Dormant

100%

Clinical research
services

100%

Clinical research
services

100%

IMP-Logistics Ukraine LLC 

8,Viskozna st. Kyiv Ukraine
02094

Logistics

100%

132Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Aptiv Solutions (UK) Ltd 

500 South Oak Way Green Park
Reading
RG2 6AD
United Kingdom

Nature of 
business

Proportion held by  
Group

Clinical research
services

100%

OncaCare (U.K.) Limited

VirtualScopics, LLC 

BioTel Research, LLC 

ICON HF Corp.  **********

Oncacare, Inc.

500 South Oak Way
Green Park
Reading
Berkshire
RG2 6AD
United Kingdom

155 Corporate Woods
Suite 180
Rochester
NY
14623

155 Corporate Woods
Suite 180
Rochester NY 14623
United States

731 Arbor Way
Suite 100
Blue Bell, PA
United States, 19422

c/o Corporation Service 
Company
251 Little Falls Drive
Wilmington
County of New Castle DE 19808
United States

ICON Research Ltd. 

Pharmaceutical Research Associates 
Hungary Research and Development Ltd. 

Radnicka cesta 80,
Zagreb,
Croatia

Szepvolgyi ut 39
HU-1037 Budapest
Hungary

ICON Clinical Research India Private 
Limited

CRN NORTH AMERICA, LLC

CHENNAI ONE IT PARK ITE/
ITES SEZ North Block
Block B, 4th Floor,
Thoraipakkam
Chennai, Tamil Nadu-TN
600097, India

3 Parkway North
Suite 200
Deerfield, IL 60015
United States 

Pharmaceutical Research Associates Ltda. Av. Ibirapuera 2332, 

Clinical Resource Network, LLC

Torre II 4º Andar, 
São Paulo, SP, 
Brazil, 
CEP 04028-003

3 Parkway North
Suite 200
Deerfield, IL 60015
United States

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research
services

100%

Clinical research 
services

100%

Clinical research
services

100%

133Notes to Consolidated Financial Statements (continued)
for the year ended 31 December 2023

32. Subsidiary undertakings (continued)

Name

Registered Office**********

Nature of 
business

Proportion held by  
Group

* majority of which is held directly by ICON plc.
** DOCS International Belgium N.V. merged out of existence on 1 January 2024. 
*** Mapi Research Trust is an association, its members are ICON Subsidiary entities.
****DOCS International B.V. changed registered address as at 31 March 2024 to Van Swietenlaan 6, 9728 NZ Groningen, 
The Netherlands. 
***** ICON Clinical Research Taiwan Limited changed registered address as at  5 February 2024 to 5th Floor No. 2, Sec 5 
Xinyi Road, Xinyi District, Taipei, Taiwan
******Pharmaceutical Research Associates Belgium B.V. changed name to ICON Clinical Research Belgium B.V. with effect 
from 1 January 2024 and changed registered address as at 19 February 2024 to Kardinaal Mercierplein 2, 2800 Mechelen, 
Belgium.
*******Pharmaceutical Research Associates India Private Limited changed registered address as at 24 February 2024 to 
Level 3 & 4, Prestige Blue Chip Software Park, Municipal No 9, Hosur Road, Adugodi, Madiwala Range, Ward No 63, 
Bangalore – 560029, Karnataka.
********Pharmaceutical Research Associates Mexico S. de R.L. de C. V. changed registerd address as at 26 March 2024 to 
Avenida Insurgentes Sur 1271, Piso 16, Interior 1601, Colonia Extremadura Insurgentes, CP 03740, Benito Juarez, CDMX, 
Mexico.
*********PRA Clinical Limited was struck off 8 January 2024.
**********ICON HF Corp. merged out of existence on 9 January 2024. 
***********Principal office address used for U.S. entities

33.  Approval of financial statements

The Board of Directors approved these financial statements on 23 April 2024.

134Company Statement of Financial Position
for the year ended 31 December 2023

ASSETS
Non-current assets
  Property, plant and equipment
  Right-of-use assets 
  Investment in subsidiaries
  Other non-current assets 
  Deferred tax asset
Total non-current assets
Current assets
  Other current assets
  Amounts due from subsidiary undertakings
  Deferred tax asset
  Cash and cash equivalents
Total current assets

Total assets

EQUITY
  Share capital
  Share premium
  Merger reserve
  Other undenominated capital
  Share-based payment reserve
  Other reserve
  Foreign currency reserve
  Retained earnings
Total equity attributable to equity holders

LIABILITIES
Non-current liabilities
  Non-current other liabilities
Total non-current liabilities
Current liabilities
  Accounts payable
  Amounts due to subsidiary undertakings
  Accrued and other liabilities
  Current taxes payable
Total current liabilities

Total liabilities

Total equity and liabilities

On behalf of the Board

Steve Cutler 

Rónán Murphy

Chief Executive Officer

Director

Note 31 December 
2023
$’000

31 December 
2022
$’000

1
8
2

3

4
5

6

5
6

311   
16   
7,149,445   
35   
399   
7,150,206   

1,313   
191,711   
2   
8,433   
201,459   

276 
727 
7,086,423 
32 
329 
7,087,787 

2,437 
146,898 
2 
6,944 
156,281 

7,351,665   

7,244,068 

6,699   
523,646   
5,656,195   
1,162   
282,520   
27,405   
(112,848)  
949,128   
7,333,907   

6,649 
472,723 
5,656,195 
1,162 
326,803 
6,071 
(114,392) 
866,648 
7,221,859 

—   
—   

269   
798   
16,517   
174   
17,758   

5,353 
5,353 

773 
1,001 
14,748 
334 
16,856 

17,758   

22,209 

7,351,665   

7,244,068 

135 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Notes to Company Financial Statements 
for the year ended 31 December 2023

1.  Property, plant and equipment

–

PLC

Cost

At 1 January 2023

Additions

Disposals

Foreign currency movement

At 31 December 2023

Depreciation

At 1 January 2023

Charge for the year

Disposals

Foreign currency movement

At 31 December 2023

Net book value

At 31 December 2023

At 31 December 2022

Cost

At 1 January 2022

Additions

Disposals

Foreign currency movement

At 31 December 2022

Depreciation

At 1 January 2022

Charge for the year

Disposals

Foreign currency movement

At 31 December 2022

Net book value

At 31 December 2022

At 31 December 2021

Leasehold 
improvements

Computer 
equipment

Office furniture 
& fixtures

$’000

$’000

$’000

353   

9 

(10)  

38   

390   

348   

8   

(10)  

38   

384   

6   

5   

630   

29 

(45)  

66   

680   

621   

11   

(45)  

65   

652   

28   

9   

903   

217 

(460)  

70   

730   

641   

65   

(303)  

50   

453   

277   

262   

Leasehold 
improvements

Computer 
equipment

Office furniture 
& fixtures

$’000

$’000

$’000

965   

— 

(533)  

(79)  

353   

958   

1   

(533)  

(78)  

348   

5   

7   

1,910   

1,775   

3 

(1,125)  

(158)  

630   

1,886   

16   

(1,125)  

(156)  

621   

9   

24   

29 

(765)  

(136)  

903   

1,437   

81   

(764)  

(113)  

641   

262   

338   

Total

$’000

1,886 

255 

(515) 

174 

1,800 

1,610 

84 

(358) 

153 

1,489 

311 

276 

Total

$’000

4,650 

32 

(2,423) 

(373) 

1,886 

4,281 

98 

(2,422) 

(347) 

1,610 

276 

369 

138 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notes to Company Financial Statements (continued)
for the year ended 31 December 2023

2. 

Investment in subsidiaries

Cost

At 1 January 2022

Additions

Redemptions

Share-based payment

Share subscription payment from subsidiary companies

At 31 December 2022

Additions

Redemptions

Share-based payment

Share subscription payment from subsidiary companies

At 31 December 2023

Investment in 
Subsidiary 
Undertakings

$’000

6,974,348 

183,051 

(83,000) 

42,431 

(30,407) 

7,086,423 

265,086 

(105,936) 

41,832 

(137,960) 

7,149,445 

On 1 July 2023, ICON plc transferred the trade of its Italian branch to ICON Holdings Clinical Research International Limited  
in exchange for the allotment and issuance of 9,214 ordinary shares of €1.00 each in the share capital of ICON Holdings 
Clinical Research International Limited, issued at a premium of €2,086.85 per share. The disposal of the trade has resulted 
in a gain of $13.5 million being recorded in Other Reserves in the Company Statement of Changes in Equity.

On 26 July 2023, ICON plc subsequently contributed its interest in ICON Holdings Clinical Research International Limited to 
ICON  Holdings  Unlimited  Company.  The  transaction  resulted  in  ICON  Holdings  Clinical  Research  International  Limited 
moving from a direct to indirect subsidiary and had no impact on the Company’s financial assets.

On 1 October 2023, ICON plc transferred its interest in ICON Japan, with a carrying value of $3.1 million, to PRA Health 
Sciences KK in exchange for a loan note of amounting to $10.9 million. The transaction resulted in the Company recording a 
gain on disposal of $7.8 million  in Other Reserves in the Company Statement of Changes in Equity.

139 
 
 
 
 
 
 
 
 
 
 
Notes to Company Financial Statements (continued)
for the year ended 31 December 2023

3.  Deferred taxation

The net deferred tax asset at 31 December 2023 and 31 December 2022 was as follows:

Deferred taxation assets

Accrued expenses and payments on account

Property, plant and equipment

Total deferred taxation assets

Deferred taxation assets

Accrued expenses and payments on account

Property plant and equipment

Total deferred taxation assets

Deferred taxation assets

Accrued expenses and payments on account

Property, plant and equipment

Loans to subsidiaries

Total deferred taxation assets

31 December
2023

31 December
2022

$'000

$'000

387   

12   

399   

318 

11 

329 

1 January 
2023

Recognised 
in Income

31 December
2023

$'000

$'000

$'000

318   

11   
329   

69   

1   
70   

387 

12 

399 

1 January 
2022

Recognised in 
Income

31 December
2022

$'000

$'000

$'000

435   

6   

50   

491   

(117)  

5   

(50)  

(162)  

318 

11 

— 

329 

At 31 December 2023 and 31 December 2022 the Company had no operating loss carry forwards for income tax purposes. 
At  31  December  2023  the  Company  had  an  unrecognised  deferred  tax  asset  in  respect  of  unutilised  foreign  tax  credits 
carried forward of $8.8 million (2022: $8.8 million). 

140 
 
 
 
 
 
 
 
 
 
Notes to Company Financial Statements (continued)
for the year ended 31 December 2023

4.  Other current assets

Prepayments

Other receivables

Total

5.  Amounts due from/to subsidiary undertakings

Amounts due from subsidiary undertakings

Amounts due to subsidiary undertakings

31 December
2023

31 December
2022

$’000

407   

906   

1,313   

$’000

301 

2,136 

2,437 

31 December
2023

31 December
2022

$’000

$’000

191,711   

146,898 

(798)  

(1,001) 

Amounts owed by subsidiary undertakings are non-interest bearing and repayable on demand. All amounts fall due within 
one year. No allowance for expected credit losses has been recorded as amounts are expected to be fully recovered. 

6.  Accrued and other liabilities

Non-current other liabilities

Lease Liabilities

Other liabilities

Total

Current liabilities

Current lease liabilities

Accruals and other liabilities

Total

7.  Related parties

31 December
2023

31 December
2022

$’000

$’000

—   

—   

—   

364 

4,989 

5,353 

31 December
2023

31 December
2022

$’000

$’000

16   

16,501   

16,517

832 

13,916 

14,748

Directors  and  Executive  Officers  of  the  Parent  Company  are  the  same  as  those  for  the  Group.  For  information  on 
transactions with Directors and Executive Officers see note 30 Related parties, to the Consolidated Financial Statements, 
and for information on Directors’ remuneration see note 10 Payroll and related benefits.

141 
 
 
 
 
 
 
 
 
 
Notes to Company Financial Statements (continued)
for the year ended 31 December 2023

8.  Leases

Right-of-use assets

The Company has the following right-of-use assets:

Depreciation charge for 2023

Right-of-use assets at 31 December 2023

Depreciation charge for 2022

Right-of-use assets at 31 December 2022

Premises

Equipment

$'000

453   

16   

1,041   

727   

$'000

—   

—   

1   

—   

Total

$'000

453 

16 

1,042 

727 

Additions to right-of-use assets during 2023 were $0.04 million (2022: $0.30 million).

The weighted average remaining lease term as at 31 December 2023 is 0.46 years (2022: 1.09 years).

Lease liabilities

Future minimum lease payments under non-cancellable leases as of 31 December 2023 were as follows: 

2024

Total future minimum lease payments 

Lease imputed interest

Total

Minimum 
rental 
payments

$'000

16 

16 

— 

16 

Lease  liabilities  are  presented  as  current  and  non-current.  Current  lease  liabilities  of $0.02  million  have  been  included  in 
accrued and other liabilities as at 31 December 2023 (2022: $0.8 million).

Amounts recognised in profit or loss

The following amounts were recognised in profit and loss:

Depreciation of right-of-use assets

Interest on lease liabilities

31 December
2023

31 December
2022

$'000

453   

—   

$'000

1,042 

3 

The depreciation cost of right-of-use assets is recorded within other operating expenses and interest on lease liabilities is 
recorded within finance costs.

During the year ended 31 December 2023 and the year ended 31 December 2022, the Company did not incur any costs 
related to variable lease payments.

9. Litigation

The  Company  is  not  party  to  any  litigation  or  other  legal  proceedings  that  the  Company  believes  could  reasonably  be 
expected  to  have  a  material  adverse  effect  on  the  Company’s  business,  results  of  operations  and  financial  position. 
However, from time to time, we may become involved in various lawsuits and legal proceedings which arise in the ordinary 
course of business. Litigation is subject to inherent uncertainties, and an adverse result in these or other matters may arise 
from time to time that may harm our business.

142 
 
 
 
 
 
 
 
 
 
 
Notes to Company Financial Statements (continued)
for the year ended 31 December 2023

10.  Financial instruments

The  Company  is  exposed  to  various  financial  risks  in  the  normal  course  of  the  business.  The  Company’s  financial 
instruments  typically  comprise  cash  and  accounts  payable. The  main  purpose  of  these  financial  instruments  is  to  provide 
finance  for  the  Company’s  operations.  The  main  risks  arising  from  the  Company’s  financial  instruments  are  credit  risk, 
liquidity risk, foreign exchange risk and interest rate risk.  

Credit risk
Intercompany  loans  receivable  and  payable  are  initially  recognised  at  fair  value.  These  are  subsequently  measured  at 
amortised cost, less any loss allowance. An expected credit loss assessment was performed in respect of the receivables at 
31 December 2023 and 31 December 2022. The identified impairment loss was immaterial. 

Credit risk is the risk of financial loss to the Company if a customer or counterparty to a financial instrument fails to meet its 
contractual obligations. Credit risk in respect of the Company arises on balances due from group companies. As the Group 
is  financially  sound  and  the  subsidiary  entities  that  the  Company  trades  with  are  in  a  position  to  make  payments  as  and 
when they fall due, the Company has assessed the exposure to credit risk as low. 

Liquidity risk 
Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they fall due. The Company’s 
liquidity risk arises from the repayment of short-term debt and other obligations as they fall due. The Company minimises 
liquidity risk by ensuring that sufficient cash balances and committed bank lines of credit are available to meet its obligations 
as  they  fall  due.  The  Company’s  bank  credit  lines  and  facilities  are  the  same  as  the  Group.  Details  of  the  Group’s  bank 
credit lines and facilities are set out in note 23 Bank credit lines and loan facilities.

The following table sets out details of the maturity of the Company’s financial liabilities into the relevant maturity groupings 
based on the remaining period from the financial year end date to the contractual maturity date:

Year ended 31 December 2023:

Carrying
Amount
$’000

Contractual 
Cashflows
$’000

Under 1 
year
$’000

1 to 2 
years
$’000

2 to 5 
years
$’000

More than 
5 years
$’000

Accounts payable

Lease liability 

Accruals and other liabilities

—   

16   

—   

16   

—   

16   

16,501   

16,517   

16,501   

16,517   

16,501   

16,517   

—   

—   

—   

—   

—   

—   

—   

—   

— 

— 

— 

— 

Year ended 31 December 2022: 

Carrying
Amount
$’000

Contractual 
Cashflows
$’000

Under 1 
year
$’000

1 to 2 
years
$’000

2 to 5 
years
$’000

More than 
5 years
$’000

Accounts payable

Lease liability

Accruals and other liabilities

—   

—   

1,196   

1,199   

—   

832   

18,905   

20,101   

18,905   

20,104   

13,916   

14,748   

—   

295   

234   

529   

—   

72   

1,616   

1,688   

— 

— 

3,139 

3,139 

Foreign currency risk
While the functional currency of the Company is USD, the functional currency of the branches is Euro. As a consequence, 
the results, when translated into U.S. dollars, could be affected by fluctuations in exchange rates against the U.S. dollar.  At 
31 December 2023 the Company had $Nil US dollar denominated bank loans (2022: $Nil).  

Interest rate risk
The  Company  finances  its  operations  through  a  mixture  of  shareholders’  funds,  borrowings  and  working  capital.  The 
Company borrows in required currencies at both fixed and floating interest rates. In general the Company borrows at floating 
rates of interest but may borrow at fixed rates depending on rates available having regard to current market rates and future 
trends. The Company has no external borrowings.    

143 
 
 
 
 
 
 
 
Notes to Company Financial Statements (continued)
for the year ended 31 December 2023

10.  Financial instruments (continued)

Fair values
Financial  instruments  are  measured  in  the  Statement  of  Financial  Position  at  fair  value  using  a  fair  value  hierarchy  of 
valuation inputs. The hierarchy prioritises the inputs into three levels based on the extent to which inputs used in measuring 
fair value are observable in the market. Each fair value measurement is reported in one of three levels, which is determined 
by the lowest level input that is significant to the fair value measurement in its entirety. 

The  carrying  values  of  amounts  due  from  subsidiary  undertakings,  cash  and  cash  equivalents,  other  current  assets, 
accounts payable and accruals and other liabilities are carried at amortised cost and assumed to be approximate to their fair 
values due to the short-term nature of these balances.    

Amounts  owed  by  subsidiary  undertakings  are  non-interest  bearing  and  repayable  on  demand. All  amounts  are  therefore 
recorded as due within one year.  Fair value is deemed to equal carrying value on this basis.  

Each category of asset and liability has remained within the same level of hierarchy as the prior year as there has been no 
change in the extent to which the inputs used in measuring fair value are or are not observable within the market. 

11.  Approval of financial statements

The Board of Directors approved the Company Financial Statements on 23 April 2024.

144Reconciliation from IFRS to US Accounting Policies

The  Consolidated  Financial  Statements  set  out  on  pages  38  to  134  have  been  prepared  in  accordance  with  International 
Financial Reporting Standards (“IFRS”), as adopted by the European Union (“EU IFRS”), which differ in certain significant 
respects from generally accepted accounting principles applicable in the U.S. (“U.S. GAAP”).  The material differences as 
they apply to the Consolidated Financial Statements are as follows:

(a) Financial statement format

The format of the financial statements and certain note disclosures differ under U.S. GAAP from those under EU IFRS.  The 
Group  prepared  a  U.S.  Securities  and  Exchange  Commission  Form  20-F  Report  which  was  made  available  to  all 
shareholders in February 2024. The financial statements included in such Form 20-F are prepared in accordance with U.S. 
GAAP.

(b) Merger with PRAI

The Group accounts for business combinations under EU IFRS in accordance with the IFRS 3 Business Combinations. As 
permitted  by  IFRS  1  First  Time  Adoption  of  International  Financial  Reporting  Standards  the  Group  has  only  restated 
business  combinations  from  1  June  2001  onwards.  Business  combinations  prior  to  this  date  have  not  been  restated.  In 
addition, goodwill has no longer been amortised since 1 June 2001, but rather is tested annually for impairment.  U.S. GAAP 
adopts different criteria to EU IFRS for establishing the method of accounting to be adopted for business combinations. On 
28 January 2000, the Group completed a transaction with Pacific Research Associates Inc. (“PRAI”), a Group specialising in 
data management, statistical analysis and medical and regulatory consulting based in San Francisco, USA. The merger with 
PRAI was accounted for using acquisition accounting principles in accordance with EU IFRS whilst U.S. GAAP required that 
the merger be accounted for using the pooling-of-interest method of accounting. U.S. GAAP pooling-of-interest accounting 
has resulted in a number of adjustments. Most significantly: 

(i)

the  Group’s  historic  U.S.  GAAP  financial  statements  have  been  restated  to  reflect  the  combined  results  of  ICON 
and PRAI; 
(ii)
the costs of the merger were expensed for U.S. GAAP purposes and included in the cost of acquisition for IFRS;
(iii) goodwill arising on IFRS has been amortised over its expected useful life up to 31 May 2001. No goodwill arose on 

the merger under U.S. GAAP; 

(iv) the  tax  charge  arising  on  the  conversion  of  PRAI  from  an  S-Corporation  to  a  C-Corporation  is  treated  as  a  pre-

acquisition charge under IFRS.

(c) Share-based payment expense

IFRS requires that the fair value of share-based payments be expensed to the Consolidated Statement of Profit and Loss 
over  the  period  the  related  services  are  received,  with  a  corresponding  increase  in  equity.  The  Group  has  accounted  for 
share-based payments under U.S. GAAP in accordance with ASC 718, Compensation – Stock Compensation, which also 
requires that the fair value of share-based payments be expensed to the Consolidated Statement of Profit and Loss over the 
period the related services are received, with a corresponding increase in equity.  

There is a difference in recorded expense. U.S. GAAP requires that the accelerated graded vesting attribution approach is 
applied in respect of awards with straight line graded vesting.  IFRS requires that each instalment of an award where there 
is graded vesting is treated as a separate grant with a different fair value. Each instalment is therefore separately measured 
and charged to the Consolidated Statement of Profit and Loss over the related vesting period.  This results in accelerated 
expense recognition under IFRS.

(d) Stock-based Compensation Arrangements in a Business Combination

An  exchange  of  share-based  payment  awards  in  a  business  combination  is  treated  as  a  modification  under  IFRS  2. The 
replacement  awards  and  the  original  acquiree  awards  should  both  be  measured  at  fair  value  at  the  acquisition  date  and 
calculated using the fair-value-based measurement principles in IFRS 2. 

U.S.  GAAP  requires  the  attribution  of  compensation  cost  for  the  acquirer’s  replacement  awards  in  the  post-combination 
financial statements to be based on the acquirer’s attribution policy (i.e., straight-line approach or graded-vesting approach). 
Under  IFRS,  however,  the  graded  vesting  approach  is  required  for  all  awards  with  graded  vesting  features  based  on  the 
requirements in IFRS 2.

145Reconciliation from IFRS to US Accounting Policies (continued)

(e) IAS 19R Defined Benefit Pensions

The Group has recognised the net interest expense of the defined benefit pension scheme within payroll costs (operating 
expenses)  in  the  Consolidated  Statement  of  Profit  and  Loss  under  IAS19R  which  is  consistent  with  the  U.S.  GAAP 
treatment of this cost. Additional net credits related to the defined benefit pension schemes refer to the adjustment required 
to  reverse  the  application  of  the  corridor  approach  permitted  under  U.S.  GAAP  and  the  different  net  interest  expense 
recorded under IFRS and U.S. GAAP.

(f) Current tax and deferred tax assets

Deferred tax asset

U.S.  GAAP, ASC  740,  Income  Taxes  requires  recognition  of  a  deferred  tax  asset  in  respect  of  the  cumulative  amount  of 
compensation cost recognised in the financial statements in respect of unexercised options that will give rise to a future tax 
deduction. The tax deduction is based on the intrinsic value of the options, with the full tax deduction recorded in profit or 
loss in the year of exercise.  

IFRS also requires that a deferred tax asset is recognised in respect of options not yet exercised where a tax deduction will 
arise. IAS 12 Income taxes requires that the tax deduction is estimated. The fair value estimate is based on the share price 
at the exercise date. 

Current tax benefit

U.S.  GAAP,  ASC  740,  Income  Taxes  requires  recognition  of  a  current  tax  benefit  of  certain  tax  deductions  arising  from 
Share-based payment windfall gains in the Consolidated Statement of Operations. IFRS requires that the current tax benefit 
of these Share-based payment windfall gains is recognised through Equity, in the Share-based payment reserve.

(g) IFRS 16 Leases

Under  U.S.  GAAP,  ASC  842  Leases,  lessees  account  for  leases  as  operating  or  finance.  Costs  in  respect  of  operating 
leases are charged to the Consolidated Statement of Operations on a straight-line basis over the lease term. Lease costs 
for all leases under IFRS 16 are comprised of the depreciation of right-of-use assets and the interest charge in respect of 
the associated lease liability. 

(h) Contract Assets and Contract Liabilities in a Business Combination

In October 2021, the FASB issued ASU 2021-08 "Business Combinations (Topic 805) - Accounting for Contract Assets and 
Contract Liabilities from Contracts with Customers". The amendments in this ASU require that an entity (acquirer) recognise 
and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606. At the 
acquisition  date,  an  acquirer  should  account  for  the  related  revenue  contracts  in  accordance  with  Topic  606  as  if  it  had 
originated the contracts. The Company has adopted the amendments in this ASU for year ended 31 December 2021 and 
has applied the amendments of this ASU to the Merger with PRA, completed on 1 July 2021. 

IFRS 3 Business Combinations does not have a similar fair value measurement exception for contract assets and contract 
liabilities. As a result, contract liabilities will have a lower valuation under IFRS compared to U.S. GAAP with the valuation 
adjustment being charged to revenue over the life of the contract with the customer.

(i) Measurement period adjustments (acquisition accounting)

Under U.S. GAAP, ASC 805 Business Combinations, any adjustments which are made to provisional acquisition accounting 
(i.e., measurement period adjustments) are reflected in the current period. Under IFRS, measurement period adjustments 
are reflected through retrospective application to the period in which the acquisition occurred. As such, measurement period 
adjustments recorded during 2022, in connection with the finalisation of acquisition accounting for the PRA Acquisition, have 
been  applied  retrospectively  for  IFRS  purposes.  Measurement  period  adjustments  primarily  consist  of  final  acquisition 
accounting adjustments to goodwill, intangible assets and the related deferred tax impact. 

146Reconciliation from IFRS to US Accounting Policies (continued)

The following is a summary of the material adjustments to profit for the financial year and shareholders’ equity, which would 
be required, had the Consolidated Financial Statements been prepared in accordance with U.S. GAAP:

(i) Effect on profit for the financial year

31 December
2023

31 December
2022

$’000

$’000

Profit for the financial year attributable to equity holders of the Company as stated under 
IFRS

609,024   

506,285 

U.S. GAAP adjustments

Share-based payment expense under IFRS (c) (d)

Share-based payment expense under U.S. GAAP (c) (d)

Fair value adjustment to unearned revenue under IFRS (h)

Amortisation adjustment related to measurement period adjustment under IFRS (i)

Right-of-use asset amortisation adjustment under IFRS (g)

Deferred tax adjustments on share-based payments (f)

Current tax adjustments on share-based payments (f)

Deferred tax adjustments on leases (f)

Additional costs of defined benefit pension scheme (e)

Net income as stated under U.S. GAAP

51,380   

55,790 

(55,665)  

(70,523) 

—   

—   
436   

2,664   

4,323   

(108)  
281   

8,000 

(2,167) 

1,179 

6,572 

(313) 

(156) 

637 

612,335   

505,304 

Basic earnings per Ordinary Share under U.S. GAAP

$7.46   

$6.20 

Diluted earnings per Ordinary Share under U.S. GAAP

$7.40   

$6.13 

147 
 
 
 
 
 
 
 
 
 
 
 
 
Reconciliation from IFRS to US Accounting Policies (continued)

(ii)  Effect on shareholders’ equity

31 December
2023

31 December
2022

$’000

$’000

Total equity attributable to the owners of the Company as stated under IFRS

9,322,815   

8,569,982 

U.S. GAAP adjustments

Goodwill (net) arising on PRA merger related stock compensation (d)

Fair value adjustment to unearned revenue under IFRS (h)

Right-of-use asset amortisation adjustment under IFRS (g)

Deferred tax adjustments on leases (f)

Taxes on unearned revenue (f)

Goodwill (net) arising on merger with PRAI (b)

Deferred tax adjustments on share-based payments (f)

(58,199)  
16,000   
3,070   

(942)  

(4,104)  

(14,009)  

(23,888)  

(58,199) 

16,000 

2,634 

(834) 

(4,104) 

(14,009) 

(13,507) 

Total equity attributable to the owners of the Company as stated under U.S. GAAP

9,240,743   

8,497,963 

 (iii)   Effect on total assets

Total assets as stated under IFRS   

U.S. GAAP adjustments

Right-of-use asset amortisation adjustment under IFRS (g)

Goodwill (net) arising on PRA merger related stock compensation (d)

Goodwill (net) arising on merger with PRAI (b)

Goodwill on fair value adjustment to unearned revenue under IFRS (h)

Deferred tax adjustments on share-based payments (f)

Goodwill (net) arising on PRA merger related right-of-use assets (g)

Total assets as stated under U.S. GAAP

(iv)   Effect on total liabilities

Total liabilities as stated under IFRS   

U.S. GAAP adjustments

Deferred tax adjustments on leases (f)

Total liabilities as stated under U.S. GAAP

31 December
2023

31 December
2022

$’000

$’000

17,071,170   

17,256,640 

3,070   

2,634 

(58,199)  

(14,009)  

(58,199) 

(14,009) 

16,000   

16,000 

(27,995)  

(17,614) 

(174)  

(174) 

16,989,863   

17,185,278 

31 December
2023

31 December
2022

$’000

$’000

7,748,355   

8,686,658 

765   

657 

7,749,120   

8,687,315 

148 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Appendix A: Risk Factors
Risk Related to Our Business and Operations

The potential loss or delay of our large contracts, or of multiple contracts, could adversely affect our results.

Our clients may discontinue using our services completely or cancel some projects either without notice or upon 
short notice. The termination or delay of a large contract, or of multiple contracts, could have a material adverse effect on 
our revenue and profitability. Historically, clients have canceled or discontinued projects and may in the future cancel their 
contracts with us for reasons including, amongst others:

•
•
•
•
•

the failure of products being tested to satisfy safety or efficacy requirements;
unexpected or undesired clinical results of the product; 
a decision that a particular study is no longer necessary or viable;
poor project performance, quality concerns, insufficient patient enrollment or investigator recruitment; and 
production problems resulting in shortages of the drug.

As a result, contract terminations, delays or other changes are part of our clinical services business. In the event of 
termination,  our  contracts  often  provide  for  fees  for  winding  down  the  trial  but  these  fees  may  not  be  sufficient  for  us  to 
maintain our margins, and termination may result in lower resource utilisation rates. In addition, we may not realise the full 
benefits of our unsatisfied performance obligation of contractually committed services if our clients cancel, delay or reduce 
their  commitments  under  our  contracts  with  them.    Therefore,  the  loss,  early  termination  or  delay  of  a  large  contract  or 
contracts could adversely affect our revenues and profitability.  

If we do not generate new business awards, or if new business awards are delayed, terminated, reduced in scope 
or fail to go to contract, our business, financial conditions, results of operations or cash flows may be materially 
adversely affected. 

Our business is dependent on our ability to generate new business awards from new and existing customers and 
maintain existing customer contracts. If we were unable to generate new business awards on a timely basis and contract for 
those awards, that could have a material impact on our business, financial condition, results of operations or cash flows. 

We depend on a limited number of customers and a loss of, or significant decrease in, business from one or more 
of them could affect our business.

While no customers individually contributed more than 10% of our revenues during the years ended 31 December 
2023 and 31 December 2022, our top five customers represented 26.8% and 28.3% of our revenues, respectively. The loss 
of, or a significant decrease in, business from one or more of these key customers could have a material adverse impact on 
our results of operations and financial results. 

The inability of biotechnology customers to raise adequate financing or funding could affect our business.

A portion of our revenue is generated from sales and services to the biotechnology industry. The clients we serve 
are commonly subject to financial pressures, including, but not limited to, the ability to obtain adequate financing or generate 
sufficient funding. To the extent our clients face such pressures, or they change how they utilise our offerings, the demand 
for our services, or the prices our clients are willing to pay for those services, may decline. Any such decline could have a 
material adverse effect on our business, operating results and financial condition.

Our financial results may be adversely impacted if we underprice our contracts, overrun our cost estimates or fail 
to receive approval for, or experience delays in, documenting change orders.

Many of our contracts are long-term fixed price or fixed unit price contracts for services. As a result, variations in 
the timing and progress of large contracts may materially adversely affect our results of operations. Revenue recognised on 
these service contracts are based on an assessment of progress towards completion being the cost of time and other third 
party costs as a percentage of total estimated time and other third party costs to deliver our services. As a result, variations 
in the timing and progress of large contracts may materially adversely affect our results of operations. Estimating time and 
costs to complete requires judgment and includes consideration of the complexity of the study, the number of geographical 
sites  where  trials  are  to  be  conducted  and  the  number  of  patients  to  be  recruited  at  each  site.  We  regularly  review  the 
estimated hours on each contract to determine if the budget accurately reflects the agreed tasks to be performed, taking into 
account the state of progress at the time of review. 

We bear the risk of cost overruns unless the scope of activity is revised from the contract specifications and we are 
able  to  negotiate  a  contract  modification.  We  endeavor  to  ensure  that  any  changes  in  scope  are  appropriately  monitored 
and  change  orders  or  contract  modifications  are  promptly  negotiated  and  documented  for  changes  in  scope.  If  we  fail  to 
successfully negotiate change orders for changes in the resources required or the scope of the work to be performed, and 

149 
 
 
 
Appendix A: Risk Factors (continued)

the costs of performance of these contracts exceeded their fixed fees, it could materially adversely affect our operations and 
financial results.

If  we  are  unable  to  successfully  develop  and  market  new  services  or  enter  new  markets,  our  growth,  results  of 
operations or financial condition could be adversely affected. 

A key element of our growth strategy is the successful development and marketing of new services or entering new 
markets that complement or expand our existing business.  As we develop new services or enter new markets, we may not 
have  or  be  able  to  adequately  build  the  competencies  necessary  to  perform  such  services  satisfactorily,  may  not  receive 
market  acceptance  for  such  services  or  may  face  increased  competition.  If  we  are  unable  to  succeed  in  developing  new 
services,  entering  new  markets  or  attracting  a  client  base  for  our  new  services  or  in  new  markets,  we  will  be  unable  to 
implement this element of our growth strategy, and our future business, reputation, results of operations could be adversely 
impacted. 

If we fail to attract or retain key personnel, our performance may suffer.

Our business, future success and ability to continue to expand operations depends upon our ability to attract, hire, 
train and retain qualified professional, scientific and technical operating people. We compete for qualified professionals with 
other  Clinical  Research  Organisations  (“CROs”),  temporary  staffing  agencies  and  the  in-house  departments  of 
pharmaceutical, biotechnology and medical device companies. An inability to attract and retain a sufficient number of high 
caliber clinical research professionals (in particular, key personnel and executives) at an acceptable cost would impact our 
ability to provide our services, our future performance and results of operations.

We may face challenges retaining employees which could cause disruption to our integration plans and day-to-day 
activities, which may result in additional costs to the business.

The attraction, development and retention of our talent is critical to the success of the Company, and we continue 
to  strengthen  processes  around  these  areas  to  minimise  retention  risk. The  Company,  led  by  the  Chief  Human  Resource 
Officer,  is  taking  meaningful  action  to  retain  employees.  Through  our  annual  Talent  Review  process  we  have  identified 
opportunities  for  improvement  as  it  relates  to  employee  retention.  Our  People  Plans  have  set  specific  goals  for  each 
functional  area  in  terms  of  three  critical  areas:  talent  attraction,  development  and  retention.  However,  we  can  provide  no 
assurances that our efforts in this respect will be successful.

Our  leadership  and  talent  programs  contribute  to  the  enhanced  retention  of  our  employees,  better  project 
deliverables for our customers and the enhanced financial performance of the business. We aim to be an industry leader: a 
company  where  talented  people  come  to  do  important  work,  a  place  where  our  employees  can  shape  the  future  of 
healthcare,  grow  their  careers,  and  reach  their  full  potential.  We  have  long  held  a  deep  commitment  to  cultivating  strong 
people practices. This includes competitive total rewards packages along with a focus on continuous learning. Our success 
depends on the knowledge, capabilities, and quality of our people.

Our ability to perform clinical trials is dependent upon the ability to recruit suitable willing patients.

The successful completion of clinical trials is dependent upon the ability to recruit suitable and willing patients on 
which  to  test  the  drug  under  study. The  availability  of  suitable  patients  for  enrollment  in  studies  is  dependent  upon  many 
factors including, amongst others, the size of the patient population, the design of the study protocol, eligibility criteria, the 
referral practices of physicians, the perceived risks and benefits of the drug under study and the availability of alternative 
medication,  including  medication  undergoing  separate  clinical  trials.  Insufficient  or  inappropriate  patient  enrollment  may 
result in the termination or delay of a study which could have a material adverse impact on our results of operations. 

The  Company  is  focused  on  continuing  to  develop  its  expertise  in  patient  recruitment  with  the  establishment  in 
2020 of Accellacare, a global clinical research network, offering patients easier and faster access to innovative treatments 
and offering customers the option to deploy decentralised trials. The focus is on making it easier for the site and the patient 
to  actively  participate  in  a  trial  to  ensure  increased  predictability,  enrollment  and  retention.  Our  site  and  patient  solutions 
group includes upfront planning of site and patient management including identification, enrollment and engagement.  

Improved site selection is achieved through:

•
•
•

leading technology to identify where the patients are that match the protocol;
assessment of the qualification of sites based on real data;
partnerships  with  leading  technology  vendors  and  developing  the  capability  to  enable  Electronic  Medical  Record 
(EMR)  interrogation  into  clinical  insights  such  as  sub-populations  and  larger  pre-screened  pools  where  the 
technology and regulations are enabled.  

150 
Appendix A: Risk Factors (continued)

The  burden  on  the  site,  in  ensuring  patient  enrollment  and  engagement,  is  achieved  through  integrated  site 
networks.  ICON  has  a  number  of  site  alliance  partners.  During  2018,  we  enhanced  our  site  and  patient  recruitment 
capabilities with an expansion of the PMG Research network through a partnership with the DuPage Medical Group. During 
2019,  we  further  enhanced  our  site  and  patient  recruitment  abilities  through  the  strategic  acquisitions  of  MeDiNova  and 
CRN. In 2020, ICON announced the launch of Accellacare, a global clinical research network offering patients easier and 
faster  access  to  innovative  treatments  and  offering  customers  the  option  to  deploy  decentralised  trials.  The  site  network 
includes  previously  acquired  PMG  Research,  MeDiNova  and  CRN. Also  in  2020,  we  entered  into  an  agreement  to  jointly 
establish a new company, Oncacare Limited ("Oncacare"), with a third party. Oncacare operates as a specialised oncology 
site network in the US and EMEA regions. This site network is focused on implementing a range of commercial models with 
specialist oncology healthcare providers in the US and EMEA, to accelerate the recruitment and retention of patients into 
oncology trials. The oncology site network was operated as a joint venture between the Company and a third party until April 
2023,  at  which  point  the  Company  acquired  the  third  party's  interest  in  Oncacare  such  that  Oncacare  became  a  wholly-
owned  subsidiary  of  the  Company.  We  also  use  digital  solutions  to  drive  site  performance,  including  pre-screening, 
eConsent, learning management, document tracking and management with key applications.  

Our ability to perform clinical trials is dependent upon our ability to recruit suitable willing investigators.

We  contract  with  physicians  located  in  hospitals,  clinics  or  other  similar  sites,  who  serve  as  investigators  in 
conducting  clinical  trials  to  test  new  drugs  on  their  patients.  Investigators  supervise  administration  of  the  study  drug  to 
patients  during  the  course  of  the  clinical  trial.  The  successful  conduct  of  a  clinical  trial  is  dependent  upon  the  integrity, 
experience and capabilities of the investigators conducting the trial. Insufficient investigator recruitment, which in turn may 
lead to insufficient or inappropriate patient enrollment, may result in the termination or delay of a study which could have a 
material adverse impact on our results of operations.

Climate  change,  extreme  weather  events,  earthquakes  and  other  natural  disasters  could  adversely  affect  our 
business. 

In  recent  years,  extreme  weather  events  and  changing  weather  patterns  such  as  storms,  flooding,  droughts  and 
temperature  changes  have  become  more  common. As  a  result,  we  are  potentially  exposed  to  varying  natural  disaster  or 
extreme weather risks such as hurricanes, tornadoes, droughts or floods, or other events that may result from the impact of 
climate  change  on  the  environment,  such  as  sea  level  rise. As  a  result,  we  could  experience  increased  costs,  business 
interruptions,  destruction  of  facilities,  and  loss  of  life,  all  of  which  could  have  a  material  adverse  effect  on  our  business, 
financial condition, or results of operations. The potential impacts of climate change may also include increased operating 
costs  associated  with  additional  regulatory  requirements  and  investments  in  reducing  energy,  water  use  and  greenhouse 
gas emissions.

A disease outbreak, epidemic or pandemic, such as COVID-19, could adversely affect our business performance. 

A disease outbreak, such as influenza or coronavirus, could negatively impact our operations. We could experience 
restrictions on our ability to travel, or the ability of patients or other service providers to travel, to monitor our clinical trials 
and to ensure laboratory samples are collected and analyse don time as a result of an outbreak. The potential impact of an 
epidemic  or  pandemic  may  also  result  in  increased  operating  costs  and  result  in  a  requirement  to  increase  investment  in 
impact  prevention.  COVID-19  has  affected,  and  may  continue  to  affect,  our  business  performance  and  could  adversely 
affect the economies and financial markets worldwide, resulting in an economic downturn that could impact our business, 
financial condition and results of operations.   

Our  business  depends  on  the  continued  effectiveness  and  availability  of  our  information  systems,  including  the 
information systems we use to provide our services to our clients, and any system failures of, security breaches of 
or  cyber  attacks  to  these  systems  may  materially  limit  our  operations  or  have  a  material  adverse  effect  on  our 
results of operations. 

Due to the global nature of our business and our reliance on information systems to provide our services, we use 
web-enabled  and  other  integrated  information  systems  in  delivering  our  services.  We  will  continue  to  increase  the  use  of 
these  systems  and  such  systems  will  either  be  developed  internally  or  provided  in  conjunction  with  third  parties.  We  also 
provide access to similar information systems to certain clients in connection with the services we provide them. As the use, 
scope and complexity of our information systems continue to grow, we are exposed to, and will increasingly be exposed to, 
the risks inherent in the development, integration and ongoing operation of evolving information systems, including:

•
•

disruption or failure of data centers, telecommunications facilities or other key infrastructure platforms;
security breaches, cyber attacks or other failures or malfunctions in our application or information systems or their 
associated  hardware  or  other  systems  that  we  have  access  to,  or  that  we  rely  upon,  or  that  have  access  to  our 
systems; 

151Appendix A: Risk Factors (continued)

•

•

security breaches, cyber attacks or malfunctions with key suppliers or partners who we rely on to provide services 
to customers; and
excessive  costs,  excessive  delays  or  other  deficiencies  in,  or  problems  with,  systems  development  and 
deployment.

The  materialisation  of  any  of  these  risks  may  impede  our  ability  to  provide  services,  the  processing  of  data,  the 
delivery of databases and services and the day-to-day management of our business and could result in the corruption, loss 
or unauthorised disclosure of proprietary, confidential or other data, as well as reputational harm. 

In addition, as Artificial Intelligence (“AI”) powered cyber threats evolve, our cybersecurity program strives to keep 
pace through the development of advanced detection and mitigation mechanisms. However, the dynamic nature of AI-driven 
attacks poses an ongoing challenge, as staying one step ahead requires constant adaptation and innovation in defensive 
strategies to effectively protect the organisation against emerging threats.

While we have cybersecurity controls and disaster recovery plans in place, they might not adequately protect us in 
the  event  of  a  system  failure,  security  breach  or  cyber  attack.  To  date,  no  cyber  attacks  have  had  a  material  impact  on 
operations or financial reporting. Additionally, despite any precautions we take, damage from fire, floods, hurricanes, power 
loss, telecommunications failures, computer viruses, information system security breaches, cyber attacks and similar events 
that impact our various computer facilities could result in interruptions in the flow of data to our servers and from our servers 
to our clients. Corruption or loss of data may result in the need to repeat a trial at no cost to the client, but at significant cost 
to  us,  or  result  in  the  termination  of  one  or  more  contracts,  legal  proceedings  or  claims  against  us  or  damage  to  our 
reputation. Additionally, significant delays in system enhancements or inadequate performance of new or upgraded systems 
once completed could damage our reputation and harm our business. Long-term disruptions in the infrastructure caused by 
events such as security breaches, cyber attacks, natural disasters, the outbreak of war, the escalation of hostilities and acts 
of terrorism, particularly involving cities in which we have offices, could adversely affect our business.

Unauthorised disclosure of sensitive or confidential data, whether through system failure or employee negligence, 
fraud  or  misappropriation,  could  damage  our  reputation  and  cause  us  to  lose  clients.  Similarly,  despite  investing  in 
information  and  cybersecurity  controls,  there  is  a  risk  that  unauthorised  access  to  our  information  systems  or  those  we 
develop for our clients, whether by our employees or third parties, including a cyber attack by computer programmers and 
hackers  who  may  attack  ICON  systems,  develop  and  deploy  viruses,  worms,  ransomware  or  other  malicious  software 
programs, could result in negative publicity, significant remediation costs, legal liability, loss of customers and damage to our 
reputation and could have a material adverse effect on our results of operations and financial results. In addition, our liability 
insurance  might  not  be  sufficient  in  type,  the  cover  provided  or  amount  to  adequately  cover  us  against  claims  related  to 
security breaches, cyber attacks and other related breaches. 

We  may  also  face  cybersecurity  risks  due  to  our  reliance  on  hybrid  work  arrangements,  which  could  create 

additional opportunities for cybercriminals to exploit vulnerabilities.

Upgrading the information systems that support our operating processes and evolving the technology platform for 
our services pose risks to our business. 

Continued efficient operation of our business requires that we implement standardised global business processes 
and evolve our information systems to enable this implementation. We have continued to undertake significant programs to 
optimise business processes with respect to our services. A failure to effectively manage the implementation and adapt to 
new processes designed into these new or upgraded systems in a timely and cost-effective manner may result in disruption 
to our business and negatively affect our operations.

We have entered into agreements with certain vendors to provide systems development and integration services 
that develop or license to us the IT platform for programs to optimise our business processes. If such vendors fail to perform 
as  required  or  if  there  are  substantial  delays  in  developing,  implementing  and  updating  the  IT  platform,  our  customer 
delivery  may  be  impaired  and  we  may  have  to  make  substantial  further  investments,  internally  or  with  third  parties,  to 
achieve  our  objectives. Additionally,  our  progress  may  be  limited  by  parties  with  existing  or  claimed  patents  who  seek  to 
prevent us from using preferred technology or seek license payments from us.

Meeting our objectives is dependent on a number of factors which may not take place as we anticipate, including 
obtaining  adequate  technology-enabled  services,  creating  IT-enabled  services  that  our  customers  will  find  desirable  and 
implementing our business model with respect to these services. We are continuing to develop opportunities for automation 
across ICON using state of the art automation tools including Robotic Process Automation (RPA), the development of new 
applications and capabilities, and enabling deeper integration across our digital ecosystem. To remain competitive within our 
industry and keep pace with the rapid evolution of the technological landscape, it is critical that we continue to innovate and 
expand the capabilities of our current technologies. This applies in particular to our ICONIK, Firecrest, ADDPLAN, Integrated 
Dataverse  (IDV®)  and  One  Search  services. Also,  increased  requirements  for  investment  in  information  technology  may 
negatively impact our financial condition, including profitability. 

152 
Appendix A: Risk Factors (continued)

Failure  to  meet  productivity  objectives  under  our  business  improvement  objectives  could  adversely  impact  our 
competitiveness and therefore our operating results.

We  continue  to  pursue  business  transformation  initiatives  to  embed  technology  and  innovation  and  deliver 
operational efficiencies. As part of these initiatives, we seek to improve our productivity, flexibility, quality, functionality and 
cost  savings  by  our  on-going  investment  in  global  technologies,  continuous  improvement  of  our  business  processes  and 
functions to deliver economies of scale. These initiatives may not deliver their intended gains or be completed in a timely 
manner which may adversely impact our competitiveness and our ability to meet our growth objectives and therefore, could 
adversely affect our business and operating results, including profitability. 

We rely on our interactive response technologies to provide accurate information regarding the randomisation of 
patients and the dosage required for patients enrolled in the trials. 

We develop and maintain computer run and web based interactive response technologies to automatically manage 
the randomisation of patients in trials, assign the study drug and adjust the dosage when required for patients enrolled in 
trials we support. An error in the design, programming or validation of these systems could lead to inappropriate assignment 
or dosing of patients, which could give rise to patient safety issues and invalidation of the trial and/or liability claims against 
the Company, amongst other things, any of which could have a material effect on our financial condition and operations.

A failure to identify and successfully close and integrate strategic acquisition targets could adversely impact our 
ongoing business and financial results.

We  have  made  a  number  of  acquisitions,  including  the  Merger,  and  continue  to  review  new  acquisition 
opportunities. If we are unable to identify suitable acquisition targets, complete an acquisition or successfully integrate an 
acquired  company  or  business,  our  business  may  be  disrupted.  The  success  of  an  acquisition  will  depend  upon,  among 
other things, our ability to:

effectively and quickly assimilate the operations and services or products of the acquired company or business; 
integrate acquired personnel; 
retain and motivate key employees; 
retain customers; and 

•
•
•
•
• minimise the diversion of management's attention from other business concerns.

In the event that the operations of an acquired company or business do not meet our performance expectations, 
we  may  have  to  restructure  the  acquired  company  or  business  or  write-off  the  value  of  some,  or  all,  of  the  assets  of  the 
acquired company or business.

Improper performance of our services could adversely impact our reputation and our financial results.

The performance of clinical development services is complex and time-consuming. We or vendors we engage may 
make  mistakes  in  conducting  a  clinical  trial  that  could  negatively  impact  or  damage  the  usefulness  of  the  clinical  trial  or 
cause the results to be reported improperly. If the clinical trial results are compromised, we could be subject to significant 
costs or liability, which could have an adverse impact on our ability to perform our services. Large clinical trials are costly, 
and while we endeavor to contractually limit our exposure to such risks, improper performance of our services could have an 
adverse effect on our financial condition, damage our reputation and result in the cancellation of current contracts or failure 
to obtain new contracts from affected or other clients. 

Our  relationships  with  existing  or  potential  customers  who  are  in  competition  with  each  other  may  adversely 
impact the degree to which other customers or potential customers use our services, which may adversely affect 
our results of operations.

The biopharmaceutical industry is highly competitive, with biopharmaceutical companies each seeking to persuade 
payers,  providers  and  patients  that  their  drug  therapies  are  better  and  more  cost-effective  than  competing  therapies 
marketed  or  being  developed  by  competing  companies.  In  addition  to  the  adverse  competitive  interests  that 
biopharmaceutical companies have with each other, biopharmaceutical companies also have adverse interests with respect 
to  drug  selection  and  reimbursement  with  other  participants  in  the  healthcare  industry,  including  payers  and  providers. 
Biopharmaceutical companies also compete to be first to market with new drug therapies. We regularly provide services to 
biopharmaceutical  companies  who  compete  with  each  other  and  we  sometimes  provide  services  to  such  customers 
regarding competing drugs in development. Our existing or future relationships with our biopharmaceutical customers may 
therefore deter other biopharmaceutical customers from using our services or may result in our customers seeking to place 
limits on our ability to serve other biopharmaceutical industry participants. In addition, our further expansion into the broader 
healthcare market may adversely impact our relationships with biopharmaceutical customers and such customers may elect 

153 
 
Appendix A: Risk Factors (continued)

not to use our services, reduce the scope of services that we provide to them or seek to place restrictions on our ability to 
serve  customers  in  the  broader  healthcare  market  with  interests  that  are  adverse  to  theirs.  Any  loss  of  customers  or 
reductions  in  the  level  of  revenues  from  a  customer  could  have  a  material  adverse  effect  on  our  results  of  operations, 
business and prospects.

We  have  only  a  limited  ability  to  protect  our  intellectual  property  rights  and  these  rights  are  important  to  our 
success.

Our  success  depends,  in  part,  upon  our  ability  to  develop,  use  and  protect  our  proprietary  methodologies, 
analytics, systems, technologies and other intellectual property. Existing laws of the various countries in which we provide 
services or solutions offer only limited protection of our intellectual property rights and the protection in some countries may 
be very limited. We rely upon a combination of trade secrets, confidentiality policies, non-disclosure, invention assignment 
and  other  contractual  arrangements  and  patent,  copyright  and  trademark  laws,  to  protect  our  intellectual  property  rights. 
These  laws  are  subject  to  change  at  any  time  and  certain  agreements  may  not  be  fully  enforceable,  which  could  further 
restrict  our  ability  to  protect  our  innovations.  Intellectual  property  rights  may  not  prevent  competitors  from  independently 
developing  services  similar  to,  or  duplicative  of,  ours.  Further,  the  steps  we  take  in  this  regard  might  not  be  adequate  to 
prevent  or  deter  infringement  or  other  misappropriation  of  our  intellectual  property  by  competitors,  former  employees  or 
other third parties and we might not be able to detect unauthorised use of, or take appropriate and timely steps to enforce 
our intellectual property rights. Enforcing our rights might also require considerable time, money and oversight and we may 
not be successful in enforcing our rights.

The  biopharmaceutical  industry  has  a  history  of  patent  and  other  intellectual  property  litigation  and  we  might  be 
involved in costly intellectual property lawsuits.

The biopharmaceutical industry has a history of intellectual property litigation, and these lawsuits will likely continue 
in  the  future. Accordingly,  we  may  face  patent  infringement  legal  proceedings  by  companies  that  have  patents  for  similar 
business processes or other legal proceedings alleging infringement of their intellectual property rights. Legal proceedings 
relating  to  intellectual  property  could  be  expensive,  take  significant  time  and  divert  management’s  attention  from  other 
business concerns, regardless of the outcome of the litigation. If we do not prevail in an infringement lawsuit brought against 
us,  we  might  have  to  pay  damages  and  we  could  be  required  to  stop  the  infringing  activity  or  obtain  a  license  to  use 
technology  on  unfavorable  terms. Any  infringement  or  other  legal  processing  related  to  intellectual  property  could  have  a 
material adverse effect on our operations and financial condition.

We  act  as  authorised  representative  or  legal  representative  for  some  clients  pursuant  to  certain  jurisdictional 
requirements  for  sponsors  of  clinical  trials  to  appoint  an  authorised  representative  or  legal  representative  with  a 
local presence within the relevant jurisdiction. 

We act as authorised representative pursuant to Medical Devices Directive 93/42/EEC (“MDD”), Medical Devices 
Regulation 2017/745 (“MDR”) and Active Implantable Medical Devices Directive 90/385/EEC (“AIMD”) for certain clients who 
are located outside of the European Union. As authorised representative, we act on behalf of medical device manufacturers 
in relation to specified tasks with regard to their obligations under MDR. 

We  also  act  as  legal  representative  pursuant  to  European  Clinical  Trials  Directive  (2021/20/EC)  (“CTD”),  EU 
Clinical Trials Regulation (No.536/2014) (“CTR”), MDD, MDR and AIMD, for certain clients who are located outside of the 
European  Union  with  respect  to  clinical  trials  being  carried  out  by  those  clients  in  the  European  Union.  We  also  perform 
similar legal representative services for certain clients in other non-EU jurisdictions, where the client is located outside the 
relevant local jurisdiction, ICON has an established local legal entity in that jurisdiction and analogous local regulations have 
a  similar  requirement  for  a  local  legal  representative  for  clinical  trials  being  carried  out  in  those  jurisdictions.  As  legal 
representative, we are responsible for ensuring compliance with the client’s obligations pursuant to CTD, CTR and MDR or 
analogous local legislation and we are the addressee for all communications with the client provided for under CTD, CTR 
and MDR or analogous local legislation.

We  provide  these  services  subject  to  certain  terms  and  conditions  which  are  contained  in  our  agreements  with 
clients  pertaining  to  these  services.  We  aim  to  reduce  any  potential  liability  associated  with  these  activities  by  seeking 
contractual indemnification from our clients and by maintaining an appropriate level of insurance cover. However, there is no 
guarantee that the specific insurance will be available or that a client will fulfill its obligations in relation to their indemnity.

154Appendix A: Risk Factors (continued)

We  rely  on  third  parties  to  provide  certain  data  and  other  information  to  us.  Our  suppliers  or  providers  might 
increase our cost to obtain, restrict our use of, or refuse to license data, which could lead to our inability to access 
certain data or provide certain services and, as a result, materially and adversely affect our operating results and 
financial condition.

Our  services  are  derived  from,  or  include,  the  use  of  data  we  collect  from  third  parties.  We  have  several  data 

suppliers that provide us with a broad and diverse scope of information that we collect, use in our business and sell.

We generally enter into long-term contractual arrangements with many of our data suppliers. At the time we enter 
into a new data supply contract or renew an existing contract, suppliers may increase our cost to obtain and use the data 
provided by such supplier, increase restrictions on our ability to use or sell such data, or altogether refuse to license the data 
to us. Also, our data suppliers may fail to meet or adhere to our quality control standards or fail to deliver the data to us. 
Although no single supplier is material to our business, if suppliers that collectively provide a significant amount of the data 
we receive or use were to increase our costs to obtain or use such data, further restrict our access to or use of such data, 
fail to meet or adhere to our quality control standards, refuse to provide or fail to deliver data to us, our ability to provide 
data-dependent  services  to  our  clients  may  be  adversely  impacted,  which  could  have  a  material  adverse  effect  on  our 
business, results of operations, financial condition or cash flow.

We  rely  on  third  parties  for  important  products,  services  and  licenses  to  certain  technology  and  intellectual 
property  rights.  If  there  was  failure  in  delivery  by  these  parties,  we  might  not  be  able  to  continue  to  obtain  such 
products, services and licenses.

We depend on certain third parties to provide us with products and services critical to our business. Such services 
include,  among  others,  suppliers  of  drugs  for  patients  participating  in  trials,  suppliers  of  kits  for  use  in  our  laboratories, 
suppliers of reagents for use in our testing equipment and providers of maintenance services for our equipment. The failure 
of  any  of  these  third  parties  to  adequately  provide  the  required  products  or  services,  or  to  do  so  in  compliance  with 
applicable regulatory requirements, could have a material adverse effect on our business.

Some of our services rely on intellectual property, technology and other similar property owned and/or controlled by 
third  parties.  Our  licenses  to  this  property  and  technology  could  terminate  or  expire  and  we  might  not  be  able  to  replace 
these  licenses  in  a  timely  manner. Also,  we  might  not  be  able  to  renew  these  licenses  on  similar  terms  and  conditions. 
Failure to renew these licenses, or renewals of these licenses on less advantageous terms, could have a material adverse 
effect on our business, results of operations, financial condition or cash flow.

Risk Related to Our Industry

Outsourcing trends in the pharmaceutical, biotechnology and medical device industries and changes in spending 
on research and development could adversely affect our operating results and growth rates.

We  are  dependent  upon  the  ability  and  willingness  of  the  pharmaceutical,  biotechnology  and  medical  device 
companies  to  continue  to  spend  on  research  and  development  and  to  outsource  the  services  that  we  provide.  We  are 
therefore subject to risks, uncertainties and trends that affect companies in these industries that we do not control. We have 
benefited to date from the tendency of pharmaceutical, biotechnology and medical device companies to outsource clinical 
research projects. Any downturn in these industries or reduction in spending or outsourcing could materially adversely affect 
our business. The following could each result in such a downturn:

•

•

•

if  pharmaceutical,  biotechnology  or  medical  device  companies  expanded  upon  their  in-house  clinical  or 
development capabilities, they would be less likely to utilise our services;
if governmental regulations were changed, it could affect the ability of our clients to operate profitably, which may 
lead to a decrease in research spending and therefore this could have a material adverse effect on our business; 
and
if unfavorable economic conditions or disruptions in the credit and capital markets negatively impacted our clients.

Large  pharmaceutical  companies  are  increasingly  consolidating  their  vendor  base  and  entering  strategic 
partnership arrangements with a limited number of outsource providers.

Large  pharmaceutical  companies  are  continually  seeking  to  drive  efficiencies  in  their  development  processes  to 
both reduce costs associated with the development of new drug candidates and accelerate time to market. As a result, large 
pharmaceutical  companies,  in  particular,  are  increasingly  looking  to  consolidate  the  number  of  outsource  providers  with 
which  they  engage,  with  many  entering  strategic  partnership  arrangements  with  a  limited  number  of  outsource 
providers.  The  failure  to  enter  strategic  partnership  arrangements  with  customers  or  the  loss  of  existing  customers  as  a 

155 
Appendix A: Risk Factors (continued)

result of them entering strategic partnership arrangements with our competitors could have a material adverse impact on our 
results of operations.

Increased  collaboration  amongst  pharmaceutical  companies  in  research  and  development  activities  may  lead  to 
fewer research opportunities.

Certain  pharmaceutical  companies  have  begun  to  collaborate  in  seeking  to  develop  new  drug  candidates. 
Increased  collaboration  amongst  pharmaceutical  companies  may  lead  to  fewer  research  opportunities,  which  in  turn  may 
lead  to  fewer  outsource  opportunities  for  companies  within  the  CRO  industry. A  reduction  in  outsource  opportunities  as  a 
result of this increased collaboration could have a material adverse impact on our results of operations.

We operate in a highly competitive and dynamic market.

The  CRO  industry  is  highly  competitive.  In  particular,  we  compete  with  other  large  global  CROs  for  strategic 
relationships with large pharmaceutical companies. If we are unable to retain and renew existing strategic relationships and 
win new strategic relationships, there could be a material adverse impact on our results. Similarly, we compete with other 
CROs for work which comes outside of these strategic relationships and being unable to win work outside of these strategic 
relationships could have a material adverse impact on our results.

The type and depth of services provided by CROs has changed in recent years. Failure to develop and market new 

services or expand existing service offerings could adversely affect our business and operations.

New entrants may also enter the market which would further increase competition and could adversely affect our 

business and operations.

We may be adversely affected by industry, customer or therapeutic concentration.

We  provide  services  to  biopharmaceutical,  biotechnology,  medical  device  and  government  organisations  and  our 
revenue  is  dependent  on  expenditures  by  these  customers.    Our  business  could  therefore  be  adversely  impacted  by 
mergers, consolidation, business failures, distress in financial markets or other factors resulting in a decrease in the number 
of  potential  customers  or  therapeutic  products  being  developed  through  the  drug  development  progress. There  has  been 
consolidation in the biopharmaceutical market in recent years. If the number of our potential customers were to decline in 
the future, they may be able to negotiate price discounts or other terms for services that are less favorable to us than they 
have been historically.  

Risk Related to Our Financial Results and Financial Position

Our quarterly results are dependent upon a number of factors and can fluctuate from quarter to quarter. They may 
fall  short  of  prior  periods,  our  projections  or  the  expectations  of  securities  analysts  or  investors,  which  may 
adversely affect the market price of our stock.  

Our results of operations in any quarter can fluctuate or differ from expected or forecast results depending upon or 
due  to,  among  other  things,  the  number  and  scope  of  ongoing  client  projects,  the  commencement,  postponement, 
variation, cancellation or termination of projects in a quarter, the mix of activity, cost overruns, employee hiring, employee 
attrition and other factors. Our revenue in any period is directly related to the number of employees who were working on 
billable projects together with investigator activity during that period. We may be unable to compensate for periods of under-
utilisation during one part of a fiscal period by earning revenue during another part of that period. We believe that operating 
results for any particular quarter are not necessarily a meaningful indicator of future results.

Also,  if  in  future  quarters,  we  are  unable  to  continue  to  deliver  operational  efficiencies  and  our  expenses  grow 
faster  than  our  revenues,  our  operating  margins,  profitability  and  overall  financial  condition  may  be  materially  adversely 
impacted.

156Appendix A: Risk Factors (continued)

Our exposure to exchange rate fluctuations could adversely affect our future results of operations.

Our  contracts  with  clients  are  sometimes  denominated  in  currencies  other  than  the  currency  in  which  we  incur 
expenses  related  to  such  contracts.  Where  expenses  are  incurred  in  currencies  other  than  those  in  which  contracts  are 
priced,  fluctuations  in  the  relative  value  of  those  currencies  could  have  a  material  adverse  effect  on  our  results  of 
operations.

In addition, we are also subject to translation exposures as our consolidated financial results are presented in U.S. 
dollars,  while  the  local  results  of  a  certain  number  of  our  subsidiaries  are  prepared  in  currencies  other  than  U.S.  dollars, 
including, amongst others, the pound sterling and the euro. Accordingly, changes in exchange rates between the U.S. dollar 
and those other currencies will affect the translation of subsidiary companies' financial results into U.S. dollars in reporting 
our consolidated financial results.

Inflation and rising labor costs could adversely affect our future results of operations.

Inflation and rising labor costs may result in significant increases to the cost of our services, which we may not be 
able  to  recover  from  our  customers.  Our  contracts  with  clients  are  often  fixed  price  or  fixed  price-per-unit  contracts.  If 
macroeconomic  forces,  such  as  inflation,  cause  the  cost  of  inputs  required  to  deliver  these  contracts  to  increase 
significantly, we may be unable to pass along these cost to our customers. A sustained increase in these costs may require 
us to increase the price of future service offerings. These actions could adversely affect our future revenue, gross margin, or 
both.

Our effective tax rate may fluctuate from quarter-to-quarter, which may adversely affect our results of operations. 

Our  quarterly  effective  tax  rate  has  depended  and  will  continue  to  depend  on  the  geographic  distribution  of  our 
taxable  earnings  amongst  the  multiple  tax  jurisdictions  (such  as  Ireland,  United  States  and  United  Kingdom)  in  which  we 
operate and the tax laws in those jurisdictions. Changes in the geographic mix of our results of operations amongst these 
jurisdictions  may  have  a  significant  impact  on  our  effective  tax  rate  from  quarter-to-quarter.  Changes  in  tax  law  in  one  or 
more jurisdictions could also have a significant impact on our tax rate and results. In addition, as we operate in multiple tax 
jurisdictions,  we  may  be  subject  to  audits  in  certain  jurisdictions.  These  audits  may  involve  complex  issues  which  could 
require an extended time period before being resolved. The resolution of audit issues may lead to additional taxes, interest 
as well as fines and/or penalties being imposed which could have a material adverse impact on our effective tax rate and 
our consolidated financial results. 

In terms of recent legislative changes which could potentially impact our effective tax rate, on August 16, 2022, the 
U.S.  government  enacted  the  Inflation  Reduction Act  of  2022  ("IRA").  The  IRA  introduced  a  15%  minimum  tax  on  book 
income of certain large corporations, a 1% excise tax on net stock repurchases, and several tax incentives to promote clean 
energy, with those tax changes becoming effective in 2023. While these changes did not have any impact on the Company 
for the year ended 31 December 2023, we are continuing to monitor any potential future tax impacts in this regard.

In terms of a global minimum tax rate, the organisation for Economic Co-operation and Development's ("OECD") 
Global Anti-Base Erosion ("GloBE") Model Rules proposed a global minimum tax rate of 15% and recommended that it be 
effective from 2024. European Union member states adopted a global minimum tax in December 2022 and member states 
were  obliged  to  implement  the  rules  by  31  December  2023,  which  impact  large  multinational  groups  with  a  consolidated 
revenue  of  over  €750  million.  Although  there  is  no  assurance  that  every  country  in  which  ICON  has  a  presence  will 
implement GloBE, where a particular jurisdiction has a minimum effective tax rate of less than 15%, the head office location 
may be obliged to pay a top-up tax. Ireland has also recently implemented global minimum tax legislation which will apply 
from 2024. The global tax environment is becoming increasingly complex and management continues to review the impact 
of a global minimum tax on the Company’s financial performance.

Our unsatisfied performance obligation may not convert to revenue and the rate of conversion may slow.

Our unsatisfied performance obligation is the amount of awards that has not yet converted to revenue. This value 
is  not  necessarily  a  meaningful  predictor  of  future  results  due  to  the  potential  for  the  cancellation  or  delay  of  projects 
included  in  the  unsatisfied  performance  obligation.  No  assurances  can  be  given  that  we  will  be  able  to  realise  this 
unsatisfied performance obligation in full as revenue. A failure to realise these awards could have a material adverse impact 
on our results of operations. In addition, as the length and complexity of projects increases, the rate at which awards convert 
to revenue may be slower than in the past. A significant reduction in the rate of conversion could have a material impact on 
our results of operations.

157Appendix A: Risk Factors (continued)

The Company is exposed to various risks in relation to our cash and cash equivalents and short term investments.

The Company’s treasury function manages our available cash resources and invests significant cash balances in 
various financial institutions to try to ensure optimum returns for our surplus cash balances. These balances are classified 
as cash and cash equivalents, or short term investments, depending on the maturity of the related investment. Cash and 
cash  equivalents  comprise  cash  and  highly  liquid  investments  with  maturities  of  three  months  or  less.  Short  term 
investments comprise highly liquid investments with maturities of greater than three months and minimum “A-” rated fixed 
and floating rate securities.

Given  the  global  nature  of  our  business,  we  are  exposed  to  various  risks  in  relation  to  these  balances  including 
liquidity risk, credit risk associated with the counterparties with whom we invest, interest rate risk on floating rate securities, 
sovereign risk (our principle sovereign risk relates to investments in U.S. Treasury funds) and other factors.

Although  we  have  not  recognised  any  significant  losses  to  date  on  our  cash  and  cash  equivalents  or  short  term 
investments,  any  significant  declines  in  their  market  values  could  have  a  material  adverse  effect  on  our  financial  position 
and operating results.

Changes in accounting standards may adversely affect our financial statements. 

We  prepare  our  financial  statements  in  accordance  with  generally  accepted  accounting  principles  in  the  United 
States of America ("U.S. GAAP") which are revised on an on-going basis by the authoritative bodies. It is possible that future 
accounting standard updates may require changes to the accounting treatment that we apply in preparation of our financial 
statements.  These  changes  may  also  require  significant  changes  to  our  reporting  systems.  These  updates  may  result  in 
unexpected variability in the timing of recognition of revenue or expenses and therefore in our operating results.  

Risk Related to Our Indebtedness

We  have  incurred  substantial  additional  indebtedness  in  connection  with  the  Merger,  which  could  impair  our 
flexibility and access to capital and could adversely affect the Company’s business, financial condition or results 
of operations.

Following  completion  of  the  Merger  and  the  other  transactions  contemplated  by  the  Merger  Agreement,  the 
Company  has  a  substantial  amount  of  debt.  ICON  borrowed  approximately  $6,015.0  million  in  order  to  pay  PRA 
stockholders  the  cash  consideration  due  to  them  as  merger  consideration  under  the  Merger Agreement,  pay  related  fees 
and  transaction  costs  in  connection  with  the  transactions,  and  refinance  existing  indebtedness.  The  total  remaining 
transaction related debt balance at 31 December 2023 was $3,751.2 million. This level of borrowings could adversely affect 
the  Company  in  a  number  of  ways,  including,  but  not  limited  to,  causing  us  to  incur  substantial  fees  from  time  to  time  in 
connection  with  debt  amendments  or  refinancing,  making  it  more  difficult  for  the  Company  to  satisfy  its  obligations  with 
respect  to  its  debt  or  to  its  trade  or  other  creditors,  requiring  a  substantial  portion  of  the  Company’s  cash  flows  from 
operations  for  the  payment  of  interest  on  the  Company’s  debt,  reducing  the  Company’s  flexibility  to  respond  to  changing 
business  and  economic  conditions,  and  reducing  funds  available  for  the  Company’s  investments  in  research  and 
development, capital expenditures and other activities. If ICON cannot service its debt, it may have to take actions such as 
selling  assets,  seeking  additional  debt  or  equity,  or  reducing  or  delaying  capital  expenditures,  strategic  acquisitions, 
investments and alliances.

Covenants  in  our  credit  agreement  and  the  indenture  governing  the  Senior  Secured  Notes  may  restrict  our 
business and operations. Our financial condition and results of operations could be adversely affected if we do not 
comply with those covenants.

The Senior Secured Credit Facilities and the indenture include certain customary covenants that limit our ability to, 

amongst other things, subject to certain exceptions:

• make dividends, investments and other restricted payments;
•
•
•
•
•

enter into sale and leaseback transactions;
engage in share buybacks;
incur or assume liens or additional debt;
engage in mergers or reorganisations; or
enter into certain types of transactions with affiliates.

158 
   
 
Appendix A: Risk Factors (continued)

              On December 8, 2023, ICON notified the holders of the Senior Secured Notes of the upgrade of the instrument 
rating to investment grade and the consequent suspension of certain of the covenants under the Indenture. The suspension 
of these covenants remains in place so long as the instrument remains at investment grade.

The  revolving  credit  facility  also  includes  a  financial  covenant  that  requires  us  to  comply  with  a  maximum 

consolidated leverage ratio. Our ability to comply with this financial covenant may be affected by events beyond our control.

Interest rate fluctuations may materially adversely affect our results of operations and financial conditions due to 
the variable interest rate on our senior secured term loan facility, our revolving credit facility or in respect of any 
future issuances of debt.

Borrowings under the senior secured term loan facility amortise in equal quarterly installments in an amount equal 
to  1.00%  per  annum  of  the  original  principal  amount,  with  the  remaining  balance  due  at  final  maturity.  The  interest  rate 
margin  applicable  to  borrowings  under  the  senior  secured  term  loan  facility  is  USD  Term  SOFR  and  a  Term  SOFR 
Adjustment  depending  on  the  interest  period  chosen  plus  an  applicable  margin  of  2.25%.  The  senior  secured  term  loan 
facility is subject to a floor of 0.50%. 

The  interest  rate  margin  applicable  to  borrowings  under  the  revolving  loan  facility  will  be,  at  the  option  of  the 
borrower, either (i) the applicable base rate plus an applicable margin of 1.00%, 0.60% or 0.25% based on ICON’s current 
corporate  family  rating  assigned  by  S&P  of  BB-  (or  lower),  BB  or  BB+  (or  higher),  respectively,  or  (ii) Term  SOFR  plus  a 
Term  SOFR  Adjustment  on  the  interest  period  chosen  plus  an  applicable  margin  of  2.00%,  1.60%  or  1.25%  based  on 
ICON’s current corporate family rating assigned by S&P of BB- (or lower), BB or BB+ (or higher), respectively. In addition, 
lenders under the revolving loan facility are entitled to commitment fees as a percentage of the applicable margin at the time 
of drawing and utilisation fees dependent on the proportion of the facility drawn. At 31 December 2023, $55.0 million was 
outstanding under the revolving loan facility while there was also $3.7 million (2022: $4.5 million) in letters of credit given to 
landlords to guarantee lease arrangements.

Because  the  Company  has  variable  rate  debt,  fluctuations  in  interest  rates  affect  our  business.  We  attempt  to 
minimise interest rate risk and lower our overall borrowing costs through the utilisation of interest rate cap and interest rate 
swap derivative financial instruments. We have entered into certain interest rate cap and interest rate swap agreements with 
three  financial  institutions  with  respect  to  a  portion  of  our  outstanding  debt.  Accordingly,  any  change  in  market  value 
associated with these agreements may be offset by the opposite market impact on the portion of the debt covered by such 
agreements. 

Risk Related to Political, Legal or Regulatory Environment

We  may  lose  business  opportunities  as  a  result  of  healthcare  reform  and  the  expansion  of  managed  care 
organisations.

Numerous  governments,  including  the  U.S.  government,  have  undertaken  efforts  to  control  growing  healthcare 
costs  through  legislation,  regulation  and  voluntary  agreements  with  medical  care  providers  and  drug  companies.  If  these 
efforts  are  successful,  pharmaceutical,  biotechnology  and  medical  device  companies  may  react  by  spending  less  on 
research and development and therefore this could have a material adverse effect on our business.

In addition to healthcare reform proposals, the expansion of managed care organisations in the health care market 
may result in reduced spending on research and development. Managed care organisations' efforts to cut costs by limiting 
expenditures  on  pharmaceuticals  and  medical  devices  could  result  in  pharmaceutical,  biotechnology  and  medical  device 
companies spending less on research and development. If this were to occur, we would have fewer business opportunities 
and our revenues could decrease, possibly materially.

Healthcare reform legislation, other changes in the healthcare industry and in healthcare spending could adversely 
affect our business model, financial condition or results of operations.

Our results of operations and financial conditions could be affected by changes in healthcare spending and policy.  
The healthcare industry is subject to changing political, regulatory and other influences. It is possible that legislation will be 
introduced and passed in the United States repealing, modifying or invalidating the current healthcare reform legislation, in 
whole  or  in  part,  and  signed  into  law.  Because  of  the  continued  uncertainty  about  the  implementation  of  the  current 
healthcare  reform  legislation,  including  the  potential  for  further  legal  challenges  or  repeal  of  that  legislation,  we  cannot 
quantify  or  predict  with  any  certainty  the  likely  impact  of  the  current  healthcare  reform  legislation  or  its  repeal  on  the 
healthcare sector, on our customers and ultimately on our financial condition or results of operations.

159 
Appendix A: Risk Factors (continued)

As  previously  noted,  on  August  16,  2022,  the  U.S.  government  enacted  the  IRA,  which  among  other  things, 
authorises  the  U.S.  Department  of  Health  and  Human  Services  to  establish  prices  for  certain  single-source  drugs  and 
biologics within the Medicare program, commencing in 2026. Furthermore, the IRA contains provisions which impose rebate 
obligations  on  manufacturers  if  price  increases  outpace  inflation.  While  the  full  impact  of  these  IRA  provisions  on  our 
customers  in  the  biopharmaceutical  industry  remains  somewhat  uncertain,  any  resultant  pressure  on  our  customers’ 
operating  results  could  lead  to  a  reduction  in  research  and  development  spend  and  related  outsourcing  activities,  which 
could have an adverse impact on our operating results and financial condition.

Our  international  operations  expose  us  to  risks  as  a  result  of  changes  in  global  political  conditions  which  could 
adversely affect our results of operations. 

Political and/or financial instability and armed conflict in various regions of the world, including, but not limited to, 
Ukraine, Israel and the conflict area in the Middle East, can lead to sanctions, economic uncertainty and currency exchange 
rate fluctuations and may interrupt our operations in those areas, which may adversely impact our results of operations. The 
current conflict in Ukraine has led to, among other things, hardship and the imposition of international economic sanctions 
aimed  at  the  region.  While  the  situation  is  subject  to  change,  there  remains  the  possibility  of  additional  and  harsher 
sanctions  if  the  conflict  intensifies.  If  that  were  to  happen,  our  operations  in  the  region  may  be  severely  curtailed  or 
eliminated,  which  could  adversely  affect  our  results  of  operations.  In  addition,  if  the  current  unrest  broadens  or  further 
escalates, our operations may be severely curtailed, which could adversely affect our results of operations. 

We  continue  to  monitor  developments  in  Israel  and  the  conflict  area  in  the  Middle  East.  Further  broadening  or 
escalation  of  the  conflict,  or  the  imposition  of  international  economic  sanctions,  could  adversely  affect  our  results  of 
operations.

We may lose business as a result of changes in the regulatory environment.

Various  regulatory  bodies  throughout  the  world  may  enact  legislation,  rules  and  guidance  which  could  introduce 
changes  to  the  regulatory  environment  for  drug  development  and  research.  The  adoption  and  implementation  of  such 
legislation, rules and guidance is difficult to predict and therefore could have a material adverse effect on our business.

Failure  to  comply  with  the  regulations  and  requirements  of  the  U.S.  Food  and  Drug  Administration  and  other 
regulatory authorities could result in substantial penalties and/or loss of business.

The  U.S.  Food  and  Drug Administration,  ("FDA"),  and  other  regulatory  and  government  authorities  and  agencies 
inspect  and  audit  us  from  time  to  time  to  ensure  that  we  comply  with  their  regulations  and  guidelines,  including 
environmental,  health  and  safety  matters,  and  other  requirements  imposed  in  connection  with  the  performance  of 
government contracts.  We must comply with the applicable regulatory requirements governing the conduct of clinical trials 
and contracting with the government in all countries in which we operate. 

If we or vendors we engage fail to comply with any of these requirements we could suffer some or all of: 

•
•
•
•
•
•
•
•

termination of or delay in any research;
disqualification of data;
denial of the right to conduct business;
criminal penalties;
financial penalties;
other enforcement actions including debarment from government contracts;
loss of clients and/or business; and
litigation from clients and/or patients and/or regulatory authorities and/or other affected third parties, and 
resulting material penalties, damages and costs.

160Appendix A: Risk Factors (continued)

We are subject to political, regulatory, operational and legal risks associated with our international operations. 

We are one of a small group of organisations with the capability and expertise to conduct clinical trials on a global 
basis. We believe that this capability to provide our services globally in most major and developing pharmaceutical markets 
enhances  our  ability  to  compete  for  new  business  from  large  multinational  pharmaceutical,  biotechnology  and  medical 
device companies. We have expanded geographically in the past and intend to continue expanding in regions that have the 
potential to increase our client base or increase our investigator and patient populations. We expect that revenues earned in 
emerging  markets  will  continue  to  account  for  an  increasing  portion  of  our  total  revenues.  However,  emerging  market 
operations may present several risks, including civil disturbances, health concerns, cultural differences such as employment, 
regulatory  and  business  practices,  compliance  with  economic  sanctions  laws  and  regulations,  volatility  in  gross  domestic 
product,  economic  and  governmental  instability,  the  potential  for  nationalisation  of  private  assets  and  the  imposition  of 
exchange controls. In addition, operating globally means the Company faces the challenges associated with coordinating its 
services across different countries, time zones and cultures.

Changes in the political and regulatory environment in the international markets in which we operate such as price 
or  exchange  controls  could  impact  our  revenue  and  profitability  and  could  lead  to  penalties,  sanctions  and  reputational 
damages if we are not compliant with those regulations. Political uncertainty and a lack of institutional continuity in some of 
the  emerging,  developing  or  other  countries  in  which  we  operate  could  affect  the  orderly  operation  of  markets  in  these 
economies.  In  addition,  in  countries  with  a  large  and  complicated  structure  of  government  and  administration,  national, 
regional, local and other governmental bodies may issue inconsistent decisions and opinions that could increase our cost of 
regulatory compliance and/or have a material adverse effect on our business. The ongoing conflict in Ukraine has resulted in 
an increasingly complex economic sanctions and export controls environment applicable to our business operations in the 
region  (including  Russia  and  Belarus)  as  a  result  of  additional  trade  compliance  measures  enacted  by  the  United  States, 
United Kingdom and European Union member states.  These economic sanctions and export controls restrict our ability to 
do business with sanctioned entities, require additional compliance resources, and could have a material adverse effect on 
the results of our operations.

Uncertainty of the legal environment in some emerging countries could also limit our ability to enforce our rights. In 
certain  emerging  and  developing  countries  we  enjoy  less  comprehensive  protection  for  some  of  our  rights,  including 
intellectual property rights, which could undermine our competitive position. Proceedings to enforce our future patent rights, 
if any, in foreign jurisdictions could result in substantial cost and divert our efforts and attention from other aspects of our 
business. 

If any of the above risks or similar risks associated with our international operations were to materialise, our results 

of operations and financial condition could be materially adversely affected.

We operate in many different jurisdictions and we could be adversely affected by violations of anti-corruption laws, 
including the United States Foreign Corrupt Practices Act of 1977 ("FCPA"), UK Bribery Act of 2010 ("UK Bribery 
Act")  and  similar  anti-corruption  laws  in  other  jurisdictions  as  well  as  laws  and  regulations  relating  to  trade 
compliance and economic sanctions.

The  FCPA,  UK  Bribery  Act  and  similar  anti-corruption  laws  in  other  jurisdictions  prohibit  us  and  our  officers, 
directors, employees and third parties acting on our behalf, including agents, from corruptly offering, promising, authorising, 
or providing anything of value to a "foreign official" for the purposes of influencing official decisions or obtaining or retaining 
business or otherwise obtaining favorable treatment. In addition, the FCPA imposes certain books, records and accounting 
control  obligations  on  public  companies  and  other  issuers.  The  UK  Bribery  Act  also  prohibits  "commercial"  bribery  and 
accepting bribes. 

Our  global  business  operations  also  must  be  conducted  in  compliance  with  applicable  export  controls  and 
economic sanctions laws and regulations, including those administered by the U.S. Department of the Treasury’s (the “U.S. 
Treasury”) Office of Foreign Assets Control, the U.S. Department of State, the U.S. Department of Commerce, the United 
Nations Security Council, the European Union, His Majesty’s Treasury and other relevant trade compliance authorities.

161Appendix A: Risk Factors (continued)

Our  internal  policies  mandate  compliance  with  these  anti-corruption  and  trade  compliance  laws  and  regulations. 
We also operate in many jurisdictions in which bribery or corruption can be common and compliance with anti-bribery laws 
may conflict with local customs and practices. Despite our training and compliance program safeguards, we cannot assure 
that our internal control policies, procedures and safeguards will protect us from acts in violation of anti-corruption and trade 
compliance  laws  and  regulations  committed  by  employees  or  other  third  parties  associated  with  us  and  our  continued 
expansion, including in developing countries, could increase such risk in the future. Violations of anti-corruption, economic 
sanctions  and  trade  control  laws  and  regulations,  or  even  allegations  of  such  violations,  could  disrupt  our  business  and 
result in a material adverse effect on our financial condition, results of operations, cash flows and reputation. For example, 
violations  of  anti-corruption  and  trade  compliance  laws  can  result  in  restatements  of,  or  irregularities  in,  our  financial 
statements,  disgorgement  of  profits,  related  stockholder  lawsuits  as  well  as  severe  criminal  or  civil  sanctions.  In  some 
cases, companies that violate anti-corruption and trade compliance laws might be debarred by the U.S. government and/or 
lose their U.S. export privileges. In addition, the U.S. government or other governments may seek to hold us liable based on 
successor liability for violations of anti-corruption and trade compliance laws committed by companies that we acquire or in 
which  we  invest.  Changes  in  anti-corruption  and  trade  compliance  laws  or  enforcement  priorities  could  also  result  in 
increased  compliance  requirements  and  related  costs  which  could  materially  adversely  affect  our  business,  financial 
condition, results of operations and cash flows. The recent increase in economic sanctions and trade controls, particularly 
relating  to  our  ongoing  operations  in  Russia,  Ukraine  and  Belarus,  has  increased  the  amount  of  resources  necessary  to 
ensure compliance in this area.

Current  and  proposed  laws  and  regulations  regarding  the  protection  of  personal  data  could  result  in  increased 
risks of liability or increased costs to us or could limit our service offerings.

ICON has a strong privacy posture, driven by the implementation of a core privacy governance strategy and the 
adoption  of  policies  and  procedures  designed  to  help  ensure  that  ICON,  including  our  employees  and  contractors,  can 
comply with applicable data protection laws (including, but not limited to, the General Data Protection Regulation (“GDPR”) 
(EU)  2016/679).  Notwithstanding  these  measures,  failure  to  comply  with  applicable  data  protection  laws  may  occur  and 
could result in increased risk of liability or increased costs to us or could limit our service offerings. 

Administrative fines. The GDPR introduced a new regime of administrative fines for data protection infringements 
and provided for a tiered penalty structure based on the nature of the infringement. The EU supervisory authorities for the 
GDPR can directly impose fines on organisations found to be in breach of the GDPR. Lower tier administrative fines allow 
for fines of up to 2% of worldwide turnover of the group in the preceding financial year. Higher tier administrative fines allow 
for fines of up to 4% of worldwide turnover of the group in the preceding financial year. Higher tier administrative fines are 
more  likely  to  be  levied  for  major  infringements  of  the  GDPR  and  core  data  protection  principles  (e.g.  transparency,  data 
retention, accountability). 

Penalties.  The  GDPR  also  permits  Member  States  to  implement  rules  on  other  penalties  applicable  to 
infringements  of  the  GDPR,  in  particular,  for  infringements  which  are  not  subject  to  administrative  fines  under  the  GDPR 
itself. Therefore, Member States may legislate for further fines or penalties that may be criminal in nature. 

Any  fines  levied  under  the  GDPR  must  be  effective,  proportionate,  and  dissuasive.  Supervisory  authorities  have 
been strengthening enforcement activities across the EU in recent years in respect of breaches of GDPR. The risk of fines 
and penalties under the GDPR carries increased risk of liability to ICON and can result in increased costs and disruption to 
the delivery of our services. 

Right to compensation of data subjects. In addition to the risk of administrative and criminal penalties, the GDPR 
also provides that any person who has suffered material or non-material damage as a result of an infringement of the GDPR 
shall have the right to receive compensation for the damage suffered, from the controller or processor responsible for the 
infringement. The level of award of damages is set by the competent court in the applicable EU Member State. This carries 
increased risk of liability for ICON. 

Corrective Powers of the supervisory authorities.  Each supervisory authority across the Member States of the EU 
also  has  corrective  powers.  Supervisory  authorities  have  the  power  to  order  ICON  to  bring  processing  operations  into 
compliance with the provisions of the GDPR in a specified manner within a specified time period, or to impose a temporary 
or  definitive  limitation  including  a  ban  on  processing,  and  to  order  the  suspension  of  data  flows  to  a  recipient  in  a  third 
country or to an international organisation. Supervisory authorities also have powers to conduct audits and investigations of 
ICON and instruct ICON to take certain actions. The exercise of these powers by supervisory authorities has the potential to 
increase costs for ICON and cause disruption to the business and delivery of our services. 

162Appendix A: Risk Factors (continued)

From  a  US  perspective,  the  confidentiality,  collection,  use  and  disclosure  of  personal  data,  including  clinical  trial 
patient-specific  information,  is  subject  to  governmental  regulation  generally  in  the  country  that  the  personal  data  was 
collected or used. For example, United States federal regulations under the Health Insurance Portability and Accountability 
Act of 1996, or ("HIPAA"), and as amended in 2014 by the Health Information Technology for Economic and Clinical Health 
(“HITECH”)  Act,  require  individuals’  written  authorisation,  in  addition  to  any  required  informed  consent,  before  Protected 
Health Information may be used for research. HIPAA specifies standards for de-identifications and for limited data sets. We 
are  both  directly  and  indirectly  affected  by  the  privacy  provisions  surrounding  individual  authorisations  because  many 
investigators and organisations with whom we are involved in clinical trials and in our other services are directly subject to 
them as a HIPAA “covered entity” and because we obtain identifiable health information from third parties that are subject to 
such  regulations. As  there  are  some  instances  where  we  are  a  HIPAA  “business  associate”  of  a  “covered  entity”,  we  can 
also  be  directly  liable  to  the  covered  entity  contractually  for  mishandling  protected  health  information  and,  under  HIPAA’s 
enforcement scheme, we can be subject to up to $1.9 million per year in civil money penalties for identical HIPAA violations. 
The  per  violation  penalties  and  calendar  year  cap  on  penalties  are  adjusted  annually  for  inflation  under  the  Federal  Civil 
Penalties Inflation Adjustment Act.

The foundational principles of the GDPR have helped shape the development of many other privacy laws globally. 
Internationally, data protection laws continue to be introduced at a rapid rate, with greater protections afforded to personal 
data than ever before, and greater risk of liability to organisations processing that personal data. As a global organisation, 
ICON must ensure that our privacy posture continues to adapt to these new laws and regulations.

Additional  legislation  or  regulation  of  this  type  might,  among  other  things,  require  us  to  implement  new  security 
measures  and  processes  which  may  require  substantial  expenditures  or  limit  our  ability  to  offer  some  of  our  services. 
Additionally, if we violate applicable laws, regulations or duties relating to the use, processing or security of personal data, 
we could be subject to civil liability or criminal prosecution, be forced to alter our business practices or suffer reputational 
harm. 

Our  employees  may  engage  in  misconduct  or  other  improper  activities,  including  noncompliance  with  regulatory 
standards and requirements, which could have a material adverse effect on our business. 

We  are  exposed  to  the  risk  of  employee  fraud  or  other  misconduct.  Misconduct  by  employees  could  include 
intentional failures to comply with governmental regulations, comply with federal and state healthcare fraud and abuse laws 
and regulations, report financial information or data accurately or disclose unauthorised activities to us. In particular, sales, 
marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to 
prevent  fraud,  kickbacks,  self-dealing  and  other  abusive  practices.  These  laws  and  regulations  may  restrict  or  prohibit  a 
wide  range  of  pricing,  discounting,  marketing  and  promotion,  sales  commission,  customer  incentive  programs  and  other 
business arrangements. Employee misconduct could also involve the improper use of information obtained in the course of 
clinical studies or data or documentation fraud or manipulation, which could result in regulatory sanctions and serious harm 
to our reputation. It is not always possible to identify and deter employee misconduct, and the precautions we take to detect 
and prevent misconduct may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from 
governmental  investigations  or  other  actions  or  lawsuits  stemming  from  a  failure  to  be  in  compliance  with  such  laws  or 
regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our 
rights, those actions could have a significant impact on our business and results of operations, including the imposition of 
significant fines or other sanctions.

The  failure  to  comply  with  our  government  contracts  or  applicable  laws  and  regulations  could  result  in,  among 
other  things,  fines  or  other  liabilities,  and  changes  in  procurement  regulations  could  adversely  impact  our 
business, results of operations or cash flows.

Revenues  from  our  government  customers  are  derived  from  sales  to  federal,  state  and  local  governmental 
departments  and  agencies  through  various  contracts.  Sales  to  public  segment  customers  are  highly  regulated. 
Noncompliance  with  contract  provisions,  government  procurement  regulations  or  other  applicable  laws  or  regulations 
(including  but  not  limited  to  the  False  Claims  Act)  could  result  in  civil,  criminal  and  administrative  liability,  including 
substantial  monetary  fines  or  damages,  termination  of  government  contracts  or  other  public  segment  customer  contracts, 
and  suspension,  debarment  or  ineligibility  from  doing  business  with  the  government  and  other  customers  in  the  public 
segment. In addition, generally contracts in the public segment are terminable at any time for convenience of the contracting 
agency  or  upon  default.  The  effect  of  any  of  these  possible  actions  by  any  governmental  department  or  agency  could 
adversely affect our business, results of operations or cash flows. In addition, the adoption of new or modified procurement 
regulations and other requirements may increase our compliance costs and reduce our gross margins, which could have a 
negative effect on our business, results of operations or cash flows.

163 
Appendix A: Risk Factors (continued)

Liability  claims  brought  against  us  could  result  in  payment  of  substantial  damages,  costs  and  liabilities  and 
decrease our profitability.

We  may  face  legal  claims  involving  stockholders,  consumers,  clinical  trial  subjects,  competitors,  regulators  and 
other  parties.  See  'Legal  Proceedings'  in  Part  A,  Item  8  of  this  Form  20-F.  Litigation  and  other  legal  proceedings  are 
inherently  uncertain,  and  adverse  rulings  could  occur,  including  monetary  damages,  or  an  injunction  stopping  us  from 
engaging in business practices, or requiring other remedies, including, but not limited to, compulsory licensing of patents. 

Customer Claims

If we breach the terms of an agreement with a customer (for example if we fail to comply with the agreement, all 
applicable regulations or Good Clinical Practice) this could result in claims against us for substantial damages which could 
have  a  material  adverse  effect  on  our  business.  As  we  provide  staff  to  deliver  our  services,  there  is  a  risk  that  our 
management,  quality  and  control  structures  fail  to  quickly  detect  a  failure  by  one  or  more  employees  or  contractors  to 
comply  with  all  applicable  regulations  and  Good  Clinical  Practice  and  our  internal  requirements  and  standard  operating 
procedures thereby exposing us to the risk of claims by customers.

Claims relating to Investigators

We  contract  with  physicians  who  serve  as  investigators  in  conducting  clinical  trials  to  test  new  drugs  on  their 
patients.  These  patients  will  generally  have  underlying  health  conditions  and  this  testing  creates  the  risk  of  liability  for 
personal injury to the patient or the risk of a serious adverse event occurring. Although investigators are generally required 
by  law  to  maintain  their  own  liability  insurance,  we  could  be  named  in  lawsuits  and  incur  expenses  arising  from  any 
professional malpractice or other actions brought against the investigators with whom we contract.

Indemnification from Customers

Indemnifications provided by our customers against the risk of liability for personal injury to or death of the patients 
arising from a study drug vary from customer to customer and from trial to trial and may not be sufficient in scope or amount, 
or our customer may not have the financial ability to fulfill their indemnification obligations. Furthermore, we would be liable 
for  our  own  negligence  and  negligence  of  our  employees  which  could  lead  to  litigation  from  customers  or  action  or 
enforcement by regulatory authorities.

Insurance

We  maintain  what  we  believe  is  an  appropriate  level  of  worldwide  Professional  Liability/Error  and  Omissions 
Insurance. In the future we may be unable to maintain or continue our current insurance coverage on the same or similar 
terms. If we are liable for a claim or settlement that is beyond the level of insurance coverage, we may be responsible for 
paying all or part of any award or settlement amount. Also, the insurance policies contain exclusions which mean that the 
policy will not respond or provide cover in certain circumstances.

Claims to Date

To  date,  we  have  not  been  subject  to  any  liability  claims  that  are  expected  to  have  a  material  effect  on  our 
business;  however,  there  can  be  no  assurance  that  we  will  not  become  subject  to  such  claims  in  the  future  or  that  such 
claims will not have a material effect on our business.

Environmental, social and governance matters may impact our business and reputation.

Increasingly,  in  addition  to  the  importance  of  their  financial  performance,  companies  are  being  judged  by  their 
performance on a variety of environmental, social and governance (ESG) matters, which are considered to contribute to the 
long-term sustainability of companies’ performance. A variety of organisations measure the performance of companies on 
such ESG topics, and the results of these assessments are widely publicised. Customers may have specific ESG related 
requirements or targets and if we fail to meet these targets, we may lose business. 

In  addition,  investment  in  funds  that  specialize  in  companies  that  perform  well  in  such  assessments  are 
increasingly popular, and major institutional investors have publicly emphasised the importance of such ESG measures to 
their  investment  decisions. Topics  taken  into  account  in  such  assessments  include,  among  others,  the  Company’s  efforts 
and impacts on climate change and human rights, ethics and compliance with law, and the role of the Company’s board of 
directors in supervising various sustainability issues. We actively manage a broad range of such ESG matters, taking into 
consideration their expected impact on the sustainability of our business over time, and the potential impact of our business 
on  society  and  the  environment.  However,  in  light  of  stakeholders’  increased  focus  on  ESG  matters,  there  can  be  no 
certainty that we will manage such issues successfully, or that we will successfully meet society’s perceived expectations as 

164 
 
 
 
 
Appendix A: Risk Factors (continued)

to our proper role. Any failure or perceived failure by us in this regard could have a material adverse effect on our reputation 
and  on  our  business,  share  price,  financial  condition,  or  results  of  operations,  including  the  sustainability  of  our  business 
over time.

Increasing focus on ESG matters has resulted in, and is expected to continue to result in, the adoption of legal and 
regulatory  requirements  designed  to  mitigate  the  effects  of  climate  change  on  the  environment,  as  well  as  legal  and 
regulatory requirements requiring climate, human rights and supply chain-related disclosures. If new laws or regulations are 
more stringent than current legal or regulatory requirements, we may experience increased compliance burdens and costs 
to meet such obligations. 

In addition, our selection of voluntary disclosure frameworks and standards, and the interpretation or application of 
those  frameworks  and  standards,  may  change  from  time  to  time  or  may  not  meet  the  expectations  of  investors  or  other 
stakeholders. Our ability to achieve our ESG commitments is subject to numerous risks, many of which are outside of our 
control.

Risk Related to Our Common Stock 

Volatility in the market price of our common stock could lead to losses by investors.

The market price of our common stock has experienced volatility in the past and may experience volatility in the 
future which could lead to losses for investors. Factors impacting volatility in the market price of our common stock include, 
amongst others:

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general market and economic conditions;
our results of operations; 
issuance of new or changed securities analysts’ reports or recommendations;
developments impacting the industry or our competitors;
declines in the market prices of stocks generally;
strategic actions by us or our competitors; 
announcements  by  us  or  our  competitors  of  significant  contracts,  new  products,  acquisitions,  joint  marketing 
relationships, joint ventures, other strategic relationships or capital commitments;
the public's reaction to press releases, other public announcements by us or third parties, including our filings with 
the SEC;
guidance, if any, that we provide to the public, any changes in this guidance or failure to meet this guidance;
changes in the credit rating of our debt;
sale, or anticipated sale, of large blocks of our stock;
additions or departures of key personnel;
regulatory or political developments;
our performance on ESG matters
litigation and governmental investigations;
changing economic conditions;
exchange rate fluctuations; 
changes in accounting principles; and
other events or factors, including those resulting from natural disasters, war, acts of terrorism or responses to those 
events.   

In addition, stock markets have from time to time experienced significant price and volume fluctuations unrelated to 
the operating performance of particular companies. Future fluctuations in stock markets may lead to volatility in the market 
price of our common stock which could lead to losses by investors.

An investor's return may be reduced if we lose our foreign private issuer status.

We  are  a  “foreign  private  issuer,”  as  such  term  is  defined  in  Rule  405  under  the  U.S.  Securities Act  1933,  and, 
therefore,  we  are  not  required  to  file  quarterly  reports  on  Form  10-Q  or  current  reports  on  Form  8-K  with  the  SEC.  In 
addition, the proxy rules and Section 16 reporting and short-swing profit recapture rules are not applicable to us. If we lose 
our status as a foreign private issuer by our election or otherwise and we become subject to the full reporting regime of the 
United States securities laws, we will be subject to additional reporting obligations and proxy solicitation obligations under 
the  Exchange Act  and  our  officers,  directors  and  10%  shareholders  would  become  subject  to  the  short-swing  profit  rules. 
The  imposition  of  these  reporting  rules  would  increase  our  costs  and  the  obligations  of  those  affected  by  the  short-swing 
rules. 

165 
 
 
 
Appendix A: Risk Factors (continued)

We do not expect to pay any cash dividends for the foreseeable future.

We  currently  do  not  expect  to  declare  dividends  on  our  common  stock  and  have  not  done  so  in  the  past.  We 
continue  to  anticipate  that  our  earnings  will  be  used  to  provide  working  capital,  to  support  operations,  to  make  debt 
repayments  and  to  finance  the  growth  and  development  of  our  business.  They  may  also  be  used  to  continue  our  share 
repurchase  program. Any  determination  to  declare  or  pay  dividends  in  the  future  will  be  at  the  discretion  of  our  board  of 
directors, subject to relevant laws and dependent on a number of factors, including our earnings, capital requirements and 
overall financial condition. Therefore, the only opportunity for stockholders to achieve a return on their investment may be if 
the market price of our common stock appreciates and shares are sold at a profit. The market price for our common stock 
may not appreciate and may fall below the price stockholders paid for such common stock. 

A future transfer of ICON ordinary shares, other than one effected by means of the transfer of book entry interests 
in the Depositary Trust Company (DTC), may be subject to Irish stamp duty.

Transfers of ICON ordinary shares effected by means of the transfer of book entry interests in the DTC should not 
be subject to Irish stamp duty where ICON ordinary shares are traded through DTC, either directly or through brokers that 
hold such shares on behalf of customers through DTC. However, if ICON ordinary shares are held as of record rather than 
beneficially through DTC, any transfer of ICON ordinary shares could be subject to Irish stamp duty (currently at the rate of 
1% of the higher of the price paid or the market value of the shares acquired). Payment of Irish stamp duty is generally a 
legal obligation of the transferee. The potential for Irish stamp duty to arise could adversely affect the price of ICON ordinary 
shares.

Forward-looking statements

To  the  extent  any  statements  made  in  this  annual  report  deal  with  information  that  is  not  historical,  these  statements  are 
necessarily  forward-looking.  Because  forward-looking  statements  relate  to  the  future,  they  are  subject  to  inherent 
uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of the Group’s 
control. Any forward-looking statement made by the Group is based only on information currently available as at the time of 
publication of this report. Forward-looking statements are subject to the occurrence of many events outside of the Group’s 
control and are subject to various risk factors that would cause our results to differ materially from those expressed in any 
forward-looking  statement.  These  risk  factors  described  in  Appendix  A  include,  without  limitation,  the  inherent  risk  of 
dependence on pharmaceutical and biotechnology industries and certain clients, termination or delay of large contracts, risk 
of cost overruns, the risk of clinical outcomes, regulatory risks and market competition. 

166ICON plc Corporate Headquarters

South County Business Park
Leopardstown, Dublin 18
Ireland 
T: (IRL) +353 1 291 2000
T: (US) +1 215 616 3000
F: +353 1 247 6260

ICONplc.com/contact

About ICON

ICON plc is a world-leading healthcare intelligence and clinical research organisation. From molecule to medicine, 
we advance clinical research providing outsourced services to pharmaceutical, biotechnology, medical device and 
government and public health organisations. We develop new innovations, drive emerging therapies forward and 
improve patient lives. With headquarters in Dublin, Ireland, ICON employed approximately 41,100 employees  
in 106 locations in 53 countries as at December 31, 2023. For further information about ICON, visit: ICONplc.com.

© 2024 ICON plc. All rights reserved.