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WESCO International

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FY2017 Annual Report · WESCO International
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2017 ANNUAL REPORT

A  WORLD 
OF SOLUTIONS

Net Sales 
(in millions)

0
9
8
,
7
$

3
1
5
,
7
$

8
1
5
,
7
$

6
3
3
,
7
$

9
7
6
,
7
$

Income from  
Operations (EBIT)1
(in millions)

6
6
4
$

5
4
4
$

4
7
3
$

2
3
3
$

1
2
3
$

Diluted EPS1 
(in millions)

Free Cash Flow1 
(in millions)

8
1
.
5
$

2
8
.
4
$

8
1
.
4
$

3
9
.
3
$

0
8
.
3
$

8
0
3
$

2
8
2
$

1
6
2
0 $
3
2
$

13

14

15

16

17

13

14

15

16

17

13

14

15

16

17

13

14

15

16

17

8
2
1
$

Financial Highlights

Year Ended December 31, 

(Dollars in millions except for diluted EPS, financial leverage ratio, and percentages)

Net sales 
Income from operations (EBIT) 1 
Net income attributable to WESCO International, Inc. 1 
Diluted EPS 1 

Diluted share count 
Free cash flow 1 
Free cash flow as a % of net income 1 

Total debt, including debt discount and debt issuance costs 
Financial leverage ratio 2 
Stockholders’ equity  1,3 
ROIC 1 

2013 

2014 

2015 

2016 

2017 

$ 7,513  

 $ 7,890  

$ 7,518 

$ 7,336 

$ 7,679

445  

254  

4.82  

52.7 

308  

121% 

1,662  

3.2  

1,765  

9.9% 

466  

276  

5.18  

53.3 

230  

84% 

1,586  

3.0  

1,928  

10.0% 

374 

211 

4.18 

50.4 

261 

125% 

1,665 

3.8 

1,774 

7.8% 

332 

184 

3.80 

48.3 

282 

154% 

1,403 

3.5 

2,046 

7.5% 

321

190

3.93

48.4

128

67%

1,363

3.5

2,224

6.9%

1  Non-GAAP financial measures are defined and reconciled on pages 90 and 91.  2013 excludes the impact of a litigation matter.  2016 excludes the loss related to the redemption of the  
6.0% Convertible Senior Debentures due 2029.  2017 excludes the income tax expense related to the application of the Tax Cuts and Jobs Act of 2017.

2  Financial leverage is calculated by dividing total debt, excluding debt discount and debt issuance costs, by earnings before interest, taxes, depreciation and amortization (EBITDA),  
excluding the impact of a litigation matter in 2013. 

3  As described in Note 2 of the Notes to Consolidated Financial Statements in the Annual Report on Form 10-K for the year ended December 31, 2017, the Consolidated Balance Sheet at  
December 31, 2016 was revised to correct certain financial statement line items, including stockholders’ equity.

Portfolio

8%

10%

12%

15%

15%

40%

PRODUCT CATEGORIES

General Supplies

Communications & Security

Wire, Cable & Conduit

Lighting & Sustainability

Electrical Distribution & Controls

Automation, Controls & Motors

5%5%

20%

75%

GEOGRAPHIES

United States

Canada

Rest of World

 
 
2017 Annual Report   |   A World of Solutions   1

A WORLD OF SOLUTIONS

WESCO is much more than a typical distributor – we’re an industry-leading 
provider of supply chain solutions, bringing an extensive array of value-
added services and technical expertise to our customers every day.   
These capabilities, enabled and amplified by the “extra-effort” culture of  
our 9,100 employees, are a key differentiator and a competitive advantage.   
For our customers, our services and expertise help them operate their 
businesses, reduce their costs, and better plan and manage their projects.  
For WESCO, they support the majority of our product sales and provide us 
the opportunity to command higher margins than the industry average.

2   WESCO International, Inc.

To Our Shareholders,
Employees, and 
Business Partners

OUR RESULTS

SUPPLY CHAIN SOLUTIONS COMPANY

Returning to sales growth was our top priority in 2017, and our 
WESCO team delivered on this expectation.  Growth was broad-
based, with all of our end markets and geographies posting 
sales increases.  Our momentum increased throughout the year, 
culminating in double-digit organic sales growth in the fourth 
quarter and a record-level backlog entering 2018.  Executing our  
One WESCO sales growth initiatives, investing in our growth 
priorities, providing customer value through our differentiated 
services offerings, and improving end markets fueled our top-line 
results and enabled us to outperform our industry.  

Our bottom line also returned to growth as we posted year-over-
year increases in net income and earnings per share, although our 
operating profit was down.  In 2018, we expect profitable growth 
as the operating leverage increases in our business, a hallmark of 
WESCO when performing in a growth mode.  

WESCO is also recognized for our ability to generate strong free 
cash flow across all phases of the economic cycle.  We maintained 
our working capital turnover ratios in 2017, but our free cash 
flow generation was below our target and historical performance 
due to the impact of double-digit sales growth increasing our 
accounts receivable in the fourth quarter.  Despite this, we returned 
$100 million to shareholders via share repurchases, repaid 
$40 million of debt, and ended the year with financial leverage 
within our target band.

A World of Solutions has been the theme of our annual report for the 
past three years, as we believe it fittingly describes our efforts and 
successes in developing an increasingly efficient, capable, services-
focused supply chain solutions company.  Highlights that have 
enabled us to meet the needs of our customers and drive value for 
our shareholders include:

   Developing technical expertise in emerging growth areas with 

great potential, including electrification, automation and controls, 
alternative energy, and Internet of Things (IoT) applications.

   Increasing our focus on solid state lighting growth, including 

retrofitting the vast North American installed lighting base with 
energy-efficient LED technology through organic investment and a 
strategic acquisition in 2015.

   Right-sizing the organization in 2015 and 2016 by eliminating 

1,000 positions and exiting or consolidating 40 branches.

   Expanding our non-residential construction presence and 

capabilities with three regional acquisitions in 2015 and 2016 (Hill 
Country, Needham Electric, and Atlanta Electrical Distributors).

   Adding new supply chain solutions to our services portfolio, along 
with additional technical sales specialists to help our customers 
identify opportunities and specify solutions, thus strengthening 
our customer value proposition. 

   Investing to expand our digital offerings to drive customer 

adoption, retention, and value. 

   Continuing our One WESCO initiatives to increase the scope of 

products and services we provide to our customers.  

A World of Solutions also aptly describes the powerful combination 
of WESCO’s product and service offerings, supplier relationships, 
geographic footprint, and technical expertise that we have brought 
together over the last two decades.  Delivered with a strong culture 
of customer service excellence, cost control and lean continuous 
improvement, they result in customized supply chain solutions that 
bring tremendous value to our customers. 

This is WESCO’s competitive advantage.  It enables us to attract and 
retain loyal customers and differentiates us from both traditional 
and online competitors.  In the following pages, we provide a few 
examples that demonstrate the range of our capabilities and the 
outstanding results we deliver.

OUR BUSINESS 

We are a leading electrical and industrial distributor in North 
America, supplying over one million products to 70,000 customers, 
including a majority of the Fortune 500 companies.  

Our focus is on building scale and profitability through organic 
growth and acquisitions, while continuing to expand the supply 
chain solutions and service offerings we deliver to our customers.  
We operate in highly fragmented markets, providing us with 
opportunities to increase share and play a consolidator role.  
Increased scale brings stronger customer and supplier relationships 
and, consequently, greater profitability and the ability to invest for 
future growth. 

Across the value chain, our customers are driving consolidation 
and outsourcing, while suppliers are looking for stronger channel 
partners to generate demand for their products.  This will result in 
a smaller number of larger relationships on both ends of our value 
chain, and WESCO is well positioned to benefit from this trend.

OUR VALUES AND OUR CULTURE

WESCO’s 9,100 employees are the key to our results and our 
“extra-effort” culture.  I am very proud of those who made personal 
sacrifices and spent many long days serving our customers’ needs 
before, during, and after Hurricanes Harvey, Irma, and Maria, as 
well as the wildfires in the western United States.  Once again, our 
industry-leading service value proposition was clearly on display as 
we provided 24-7 support to our customers and their operations.  

We continue to invest in developing our workforce, with programs 
such as mentoring, military veteran recruiting, and WESCO 
University training.  We are also increasing the use of best-in-class 
processes and tools and are sharpening our focus on execution.  

Social and environmental responsibility is another core WESCO 
focus.  In 2017, we published a comprehensive WESCO Sustainability 
Report, detailing our initiatives to protect the environment, 
promote diversity and inclusion, contribute to our communities, and 
ensure good corporate governance.  We also help our customers’ 
sustainability efforts to improve their operations in lighting, energy 

2017 Annual Report   |   A World of Solutions   3

management, renewable energy, water and waste mitigation, 
and green procurement.  Consistent with our lean culture, we are 
measuring our progress, seeking improvement opportunities, and 
reporting on our performance.

OUR FUTURE 

We enter 2018 with positive momentum and expect continued 
end market growth and market outperformance.  The sweeping  
tax reform enacted by the U.S. in late 2017, coupled with ongoing 
regulatory rationalization, is encouraging companies to increase 
or accelerate their capital investments.  In the U.S., the federal 
government has initiated a review of required infrastructure 
investments, and Canada’s 10-year public/private infrastructure 
investment program is well underway.  With roughly half of our 
business driven by capital projects, increased customer capital 
spending provides significant opportunities for future growth.

We remain focused on what we can control — our strategy, our 
investments, our team, and our execution.  Our competitive 
differentiation includes an array of service offerings supporting 
our product sales.  Across the value chain, as the consolidation 
and outsourcing trends continue, we are poised to benefit from 
new and emerging growth opportunities in our industry, including 
digitization, electrification, and IoT applications.  We continue to 
strengthen our team, appointing a new U.S. leader and senior level 
managers to our sales and supply chain functions to help us deliver 
continued growth while expanding margins.  We expect these 
actions will sustain our profitable growth in the years to come. 

OUR COMMITMENTS

To our customers, thank you for your business.  We are committed 
to creating value in your operations to enable you to perform at the 
highest level.  We plan to exceed your expectations in 2018. 

To our employees, thank you for your dedication, engagement, 
and extraordinary effort in providing outstanding service to our 
customers and delivering our competitive advantage. 

To our suppliers, thank you for your support and ongoing 
partnership.  Together, we look forward to excelling in 2018. 

To our shareholders, thank you for your continued investments and 
confidence.  We are committed to continually strengthening our 
business and increasing shareholder value.

        John Engel 

Chairman, President, and Chief Executive Officer

 
 
4   WESCO International, Inc.

With over 50 distinct service offerings for customers of all 
sizes and industries, our four categories of solutions include:

SUPPLY CHAIN  
SOLUTIONS

CAPITAL PROJECT  
SOLUTIONS

CUSTOMIZED 
PRODUCT SOLUTIONS

TECHNICAL EXPERT  
SOLUTIONS

Customized sourcing, 
procurement, demand 
and inventory 
management, 
warehousing, and 
logistics solutions that 
improve efficiencies, 
remove waste, and 
provide tangible 
savings.

Project and material 
management solutions 
to increase labor 
productivity, while 
reducing project costs 
and risks.

Assembly of electrical, 
wiring, and other 
components into kits, 
sub-assemblies, and 
products to simplify our 
customers’ operations 
and enable them to 
focus on their core 
capabilities.

Helping our customers 
identify opportunities 
and define, purchase, 
and implement the 
right solutions to make 
their operations more 
cost-effective, efficient, 
and reliable.

Our focus on driving value for our customers and  
our “extra effort” culture are the foundation of WESCO.   
We are pleased to present a few examples of our work  
in 2017 to bring our supply chain solutions and  
customer-focused culture to life.

2017 Annual Report   |   A World of Solutions   5

WINNING CAPITAL PROJECTS  
WITH TECHNOLOGY, SUPPLY CHAIN  
CAPABILITIES, AND EXPERIENCE

A global customer familiar with WESCO’s capital project 
capabilities didn’t hesitate to directly award part of its $300 
million capital project to WESCO.

The customer sole-sourced the medium and low-voltage cable, 
cable tray, lighting, distribution equipment, and consumables 
portion of the project from WESCO, leveraging existing pricing 
and terms and conditions.  It also eliminated the cost and time 
to bid our scope of work.

In doing this, the customer recognized the strength of WESCO’s 
capital projects value proposition, including:

    A dedicated project team with decades of capital projects 

expertise and industry knowledge;

    A network of approximately 500 branch locations, which 
enables WESCO to serve multiple locations in numerous 
states and countries with our extensive branch infrastructure; 

    Inventory located close to the construction site and delivered 
just-in-time based on the construction schedule, increasing 
craft productivity; and

  Significantly reduced surplus at the end of the project.

WESCO’s portion of the project was coordinated and reported 
using our proprietary material management software, which 
was specifically designed for capital projects.  Called RPM 
(short for Remote Project Management), WESCO’s project 
management system is web-based and provides real-time  

information on project activity.  “A large project can have 
an end user, an engineering firm, a general contractor and 
sub-contractors, with many employees who are all in different 
geographies,” explained Les Kebler, Vice President and General 
Manager, International.  “RPM provides a single information 
source for project activity.”

On this project, WESCO provided material take-offs and 
technical support, helping the customer develop specifications, 
consider various cost alternatives, and ensure that lead times 
met project requirements.  We used an existing WESCO branch 
to provide local inventory support, including material staging 
and kitting, for just-in-time delivery.  We also staged on-site 
trailers to make high-volume products readily available.

“  WESCO’s unique combination of 
technology, supply chain capabilities, 
and experience delivers proven 
results that lower costs and mitigate 
risks on large capital projects.”

Les Kebler, Vice President and General Manager, 
International

6   WESCO International, Inc.

DELIVERING QUICK WINS

A single plant’s request for a lighting audit turned into millions 
of dollars of additional projects for WESCO and significant 
energy and maintenance savings for our customer.

In late 2016, a global customer turned to WESCO to help 
identify lighting improvement and savings opportunities at 
one of their U.S. plants.  WESCO’s sales and technical experts 
presented a proposal to convert the existing lamps and fixtures 
to an LED solution, while also specifying the fixture type and 
control system that best met the facility’s needs.  This solution 
minimized the number of light fixtures while improving lighting 
coverage, visibility, and safety.  

The customer also asked WESCO to manage the project.  Using 
a process developed by WESCO to move an opportunity from 
concept to completion, we were able to ensure delivery of the 
planned solution and help ensure that targeted savings were 
achieved.  WESCO worked with the customer to select the 
installers and manage their work, while conducting weekly 
project management meetings.

The project enabled the plant to reduce its energy usage, 
maintenance labor, and material cost, generating an internal 
rate of return of more than 30%.  The new lighting also ensured 
compliance with OSHA illumination-level standards for safe 
workplaces.  

“  Since this initial project, the customer 
and WESCO have repeated this 
winning formula to address many 
more savings opportunities.  In 2018, 
we are working together to expand 
our efforts beyond the lighting 
category, driving more savings for  
our customer and sales and profit  
for WESCO.”

John Kostecka, WESCO Account Executive

2017 Annual Report   |   A World of Solutions   7

“  This tailored and comprehensive 
solution has grown our business 
substantially.  It has given WESCO  
access to other product lines to truly 
drive a One WESCO solution for this  
group of customers.”

Nelson Squires, Group Vice President and General Manager, 
Canada and International

DIGITALLY CONNECTING  
ALL OF CANADA 

Canada has announced plans to more than double its existing 
infrastructure spending, targeting a C$180 billion-plus 
investment over the next 10 years in combined public and 
private investment.  Championed by Prime Minister Justin 
Trudeau, work is underway on some of these infrastructure 
initiatives.

These investments include reaching all of Canada (spanning 
3.8 million square miles: second only to Russia in total land 
mass) with fiber optic cable.  WESCO Canada and its TVC 
business have been focused on bringing solutions to the 
telecom industry, which is charged with this ambitious build 
out.  While the telecom companies are successful businesses 
with significant infrastructure, they sought out partners for 
help in managing such a large task.  This is where WESCO 
stepped in.

No other distributor can match WESCO’s branch network and 
capabilities across the country.  Utilizing our point-of-use 
software, we can bring an array of services — including vendor-
managed inventory, lean programs, project staging, tailored 
delivery schedules, carrier selection, feed-the-job delivery 
programs, and local and remote storage plans —  
to the telecoms across Canada. 

8   WESCO International, Inc.

DEALING WITH DISASTER:   
THE HURRICANES OF 2017

The 2017 Atlantic hurricane season was one of the 
most active and destructive ever recorded.  Over 
a four-week period in August and September, 
hurricanes Harvey, Irma, and Maria pounded 
southeastern Texas, Florida, Puerto Rico, and the 
Caribbean, making lasting impacts.  

Capitalizing on the deep expertise in our branch 
network, we sent teams of experienced personnel 
from 15 states as first responders to the impacted 
communities.  There, working with our Global 
Supply Chain team and our local branches, they 
provided a wide variety of needed products and 
services for our customers and their employees.

WESCO’s customer service focus was on full 
display before, during, and after the storms.   
“Extra effort” is ingrained in our culture, helping  
to drive sales and form lasting relationships.

HARVEY: RECORD-BREAKING RAINFALL

In nine days, Hurricane Harvey dropped up to 60 inches of rain 
on parts of southeastern Texas.  As with hurricanes Matthew 
(2016) and Sandy (2012), WESCO was ready to serve.  Our Utility 
Group worked extensively with all of our utility customers 
to prepare for the storm, and to restore power to millions 
of Texas Gulf Coast area homes and businesses in Harvey’s 
aftermath.  As the storm approached, our new One WESCO 
Dallas Distribution Center played a vital role in stockpiling and 
coordinating the delivery of storm recovery supplies.  It also 
served as the hub for procuring perishable and non-perishable 
food, home generators, and other supplies to meet the 
immediate needs of our customers’ employees as well as our 
own employees. 

It didn’t take long for customers around the region to realize 
they could rely on WESCO to help them recover from the 
devastation.  “Customers told us that no other distributor 
could have done what WESCO did,” recalls Jim Cameron, Vice 
President and General Manager, Utility.  “They recognize that we 
have a large array of resources and capabilities that we can draw 
on at a moment’s notice.  WESCO has many large customers 
in the impacted area.  Our teams were stretched and tested to 
meet their needs, and came through with flying colors.” 

IRMA:  THREE CONSECUTIVE DAYS AT CATEGORY 5 

Prior to making landfall in Florida on September 10, 
Hurricane Irma was already making history in the Caribbean 
as one of the largest, strongest, and most devastating 
storms ever recorded.  As our teams continued to focus 
on the clean-up efforts in Texas, WESCO’s Utility Group 
recognized that it would take an all-hands-on-deck 
approach for its Florida utility customers to restore power to 
millions of people when the storm was over.  

WESCO immediately doubled the inventory of the most-
needed storm recovery items at our Orlando branch.  The 
inventory was increased again when our utility customers 
realized they would most likely be dealing with complete 
rebuilds in some areas, versus simpler restoration events. 

“The path that Irma took was the worst-case scenario.  More 
than 4.4 million people were without power, and every utility 
in the state of Florida was impacted,” said Russ Reynolds, 
Florida Regional Manager for the WESCO Utility Group.  
“Florida utilities made arrangements for an estimated 
40,000 to 45,000 additional resources from other states to 
help.  This became the largest deployment of additional 
resources in the history of the utility industry.”

“WESCO is viewed by our utility customers as first 
responders with an obligation to serve,” said Reynolds.  
“Our collective actions and performance supporting the 
Irma restoration efforts have demonstrated that we live 
up to our commitments.  This was truly a One WESCO 
accomplishment.”

2017 Annual Report   |   A World of Solutions   9

MARIA:  THE WORST NATURAL DISASTER  
IN PUERTO RICO’S HISTORY

On September 22, Hurricane Maria made a direct hit on 
Puerto Rico.  With the electrical grid destroyed and the 
island without power, WESCO’s Integrated Supply Group 
(WIS) got the call from a major customer seeking as many 
generators as they could find.  That’s a tall order, considering 
the shortage of generators following hurricanes Harvey and 
Irma.  But WIS has built a reputation as the supplier that can 
deliver just about anything a customer needs.

Our WIS team not only sourced 900 generators, but also 
water, gas cans, batteries, flashlights, water filters, safety 
glasses, and a myriad of medical supplies as well.  In the 
weeks that followed, WIS continued to deliver hard-to-find 
items as requested, including ice machines, insect repellent, 
table camping stoves, and many others.

“We have a level of networking and expertise that sets 
WESCO apart from other integrated supply providers,” 
explained Mike Trubia, Director, WIS.  “Our team did what 
we do best and stepped up to assist our customer.  We’ll 
continue to do so as long as the help is needed.”

WESCO’s Government Team has also been supporting post-
Maria recovery efforts.  Over the course of a weekend, we 
prepared and submitted a successful multi-million-dollar 
bid package to help the U.S. Army rebuild the electrical grid.  
We worked with the governmental agency responsible for 
procuring materials for this effort due to the challenging 
logistics of getting materials onto the island.  Seamless 
coordination between our Utility Project Management and 
Government teams produced significant ongoing sales and 
support during the entire rebuilding process.

10   WESCO International, Inc.

WESCO’S GLOBAL REACH    

WESCO provides an in-country and regional support structure that meets customers’ 
needs for rapid deployment, scalability, global sourcing, multi-currency transactions, 
and local inventory in the Americas, EMEA, and Asia-Pacific.

CANADA

U.S.A.

MEXICO

SCOTLAND

NETHERLANDS

POLAND

CZECH REPUBLIC

IRELAND

ENGLAND

SPAIN

ECUADOR

  WESCO PRESENCE      

PERU

  SERVICE AREA

CHILE

ANGOLA

CHINA

UAE

THAILAND

SINGAPORE

Corporate Profile / WESCO International, Inc. (NYSE: WCC), a publicly traded Fortune 500 holding company headquartered 
in Pittsburgh, Pennsylvania, is a leading provider of electrical, industrial, and communications maintenance, repair and 
operating (MRO) and original equipment manufacturers (OEM) products, construction materials, and advanced supply 
chain management and logistic services.  2017 annual sales were approximately $7.7 billion.  The company employs 
approximately 9,100 people, maintains relationships with over 26,000 suppliers, and serves approximately 70,000 active 
customers worldwide.  Customers include commercial and industrial businesses, contractors, government agencies, 
institutions, telecommunications providers, and utilities.  WESCO operates 10 fully automated distribution centers and 
approximately 500 branches in North America and international markets, providing a local presence for customers and a 
global network to serve multi-location businesses and multi-national corporations.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

(Mark One)

FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
1934

For the fiscal year ended December 31, 2017

or

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934

For the transition period from                     to                     

Commission file number 001-14989

WESCO International, Inc.
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of
incorporation or organization)

225 West Station Square Drive
Suite 700
Pittsburgh, Pennsylvania
(Address of principal executive offices)

25-1723342
(I.R.S. Employer
Identification No.)

15219
(Zip Code)

(412) 454-2200
(Registrant’s telephone number, including area code) 

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

Title of Class

Common Stock, par value $.01 per share

Name of Exchange on which registered

New York Stock Exchange

SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes 

 No 

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes 

 No 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange 

Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been 
subject to such filing requirements for at least the past 90 days. Yes 

 No 

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be 
contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 
10-K or any amendment to this Form 10-K. 

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive 

Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter 
period that the registrant was required to submit and post such file). Yes 

 No 

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting 
company, or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and 
"emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer 

Accelerated filer 

Non-accelerated filer 

(Do not check if a smaller reporting company)

Smaller reporting company 

Emerging growth company 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying 

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Ex-change Act. 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes 

 No 

The registrant estimates that the aggregate market value of the voting shares held by non-affiliates of the registrant was approximately $2.7 
billion as of June 30, 2017, the last business day of the registrant’s most recently completed second fiscal quarter, based on the closing price on 
the New York Stock Exchange for such stock.

As of February 20, 2018, 47,056,716 shares of Common Stock, par value $.01 per share, of the registrant were outstanding.

Part III of this Form 10-K incorporates by reference portions of the registrant’s Proxy Statement for its 2018 Annual Meeting of Stockholders.

DOCUMENTS INCORPORATED BY REFERENCE:

TABLE OF CONTENTS

PART I
Item 1. Business
Item 1A. Risk Factors
Item 1B. Unresolved Staff Comments
Item 2. Properties
Item 3. Legal Proceedings
Item 4. Mine Safety Disclosures

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 

Securities

Item 6. Selected Financial Data
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. Quantitative and Qualitative Disclosures About Market Risks
Item 8. Financial Statements and Supplementary Data
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Item 9A. Controls and Procedures
Item 9B. Other Information

PART III
Item 10. Directors, Executive Officers and Corporate Governance
Item 11. Executive Compensation
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 13. Certain Relationships and Related Transactions, and Director Independence
Item 14. Principal Accountant Fees and Services

PART IV
Item 15. Exhibits and Financial Statement Schedules
Item 16. Form 10-K Summary
Signatures

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Item 1. Business.

PART I

In this Annual Report on Form 10-K, “WESCO” refers to WESCO International, Inc., and its subsidiaries and its predecessors 
unless the context otherwise requires. References to “we,” “us,” “our” and the “Company” refer to WESCO and its subsidiaries.

The Company

WESCO International, Inc. (“WESCO International”), incorporated in 1993 and effectively formed in February 1994 upon 
acquiring a distribution business from Westinghouse Electric Corporation, is a leading North American-based distributor of products 
and provider of advanced supply chain management and logistics services used primarily in industrial, construction, utility, and 
commercial, institutional and government (“CIG”) markets. We are a leading provider of electrical, industrial, and communications 
maintenance, repair and operating ("MRO") and original equipment manufacturer ("OEM") products, construction materials, and 
advanced supply chain management and logistics services. Our primary product categories include general supplies, wire, cable 
and conduit, communications and security, electrical distribution and controls, lighting and sustainability, and automation, controls 
and motors.

We serve approximately 70,000 active customers globally through approximately 500 branches primarily located in North 
America, with operations in 15 additional countries and 10 distribution centers located in the United States and Canada. The 
Company employs approximately 9,100 employees worldwide. We distribute over 1,000,000 products, grouped into six categories, 
from more than 26,000 suppliers, utilizing a highly automated, proprietary electronic procurement and inventory replenishment 
system.

In addition, we offer a comprehensive portfolio of value-added capabilities, which includes supply chain management, logistics 
and transportation, procurement, warehousing and inventory management, as well as kitting, limited assembly of products and 
system installation. Our value-added capabilities, extensive geographic reach, experienced workforce and broad product and supply 
chain solutions have enabled us to grow our business and establish a leading position in North America.

Industry Overview

We  operate  in  highly  fragmented  markets  that  include  thousands  of  small  regional  and  locally  based,  privately  owned 
competitors. According to one industry publication, in 2017, the latest year for which market data is available, the five largest full-
line electrical distributors in North America, including WESCO, accounted for approximately 33% of an estimated $100 billion-
plus of  electrical sales in  North America. Our global account, integrated supply and  OEM programs  provide customers with 
regional, national, North American and global supply chain consolidation opportunities. The demand for these programs is driven 
primarily  by  the  desire  of  companies  to  reduce  operating  expenses  by  outsourcing  operational  and  administrative  functions 
associated with the procurement, management and utilization of MRO supplies and OEM components. We believe that opportunities 
exist for expansion of these programs. The total potential in the United States for purchases of MRO and OEM supplies and 
services across all industrial distribution market segments and channels is estimated to be nearly $800 billion per a combination 
of industry sources.

According to various industry sources, electrical distribution industry sales have grown low-single-digits on average over the 
past three years, despite a low-single-digit decline in 2016. Growth in recent years has been driven by new products, technologies 
and applications. It is estimated that approximately 75% of electrical products sold in the United States are delivered to the end 
user through the distribution channel.

1

Markets and Customers

We have a large base of approximately 70,000 active customers across a diverse set of end markets. Our top ten customers 

accounted for approximately 17% of our sales in 2017. No one customer accounted for more than 4% of our sales in 2017.

The following table outlines our sales breakdown by end market:

(percentages based on total sales)

Industrial

Construction

Utility

Commercial, Institutional and Government

Year Ended December 31,

2016

36%

34%

16%

14%

2015

39%

32%

15%

14%

2017

37%

33%

16%

14%

Industrial. Sales to industrial customers of MRO, OEM, and construction products and services accounted for approximately 
37% of our sales in 2017, compared to 36% in 2016. Industrial sales product categories include a broad range of electrical equipment 
and supplies as well as lubricants, pipe, valves, fittings, fasteners, cutting tools, power transmission, and safety products. In addition, 
OEM customers require a reliable supply of assemblies and components to incorporate into their own products as well as value-
added services such as supplier consolidation, design and technical support, just-in-time supply and electronic commerce, and 
supply chain management.

Construction. Sales of electrical and communications products to contractors accounted for approximately 33% of our sales 
in 2017, compared to 34% in 2016. Customers include a wide array of contractors and engineering, procurement and construction 
firms for industrial, infrastructure, commercial and data and broadband communications projects. Specific applications include 
projects for refineries, railways, wastewater treatment facilities, data centers, security installations, offices, and modular and mobile 
homes. In addition to a wide array of electrical products, we offer contractors communications products for projects related to IT/
network modernization, physical security upgrades, broadband deployments, network security, and disaster recovery.

Utility. Sales to utilities and utility contractors accounted for approximately 16% of our sales in 2017 and 2016. Customers 
include large investor-owned utilities, rural electric cooperatives, municipal power authorities and contractors that serve these 
customers. We provide our utility customers with products and services to support the construction and maintenance of their 
generation, transmission and distribution systems along with an extensive range of products that meet their power plant MRO and 
capital projects needs. Materials management and procurement outsourcing arrangements are also important in this market, as 
cost pressures and deregulation have caused utility customers to seek improvements in the efficiency and effectiveness of their 
supply chains.

Commercial, Institutional and Government. Sales to CIG customers accounted for approximately 14% of our sales in 2017
and 2016. Customers include schools, hospitals, property management firms, retailers and federal, state and local government 
agencies of all types, including federal contractors.

Business Strategy

Our goal is to grow organically at a rate greater than that of our industry while making accretive acquisitions. Our organic 
growth strategy focuses on enhancing our sales, technical expertise and customer service capabilities to acquire new customers 
and increase our sales to current customers, broaden our product and service offerings and expand our geographic footprint. We 
utilize  LEAN  continuous  improvement  initiatives  on  a  company-wide  basis  to  deliver  operational  excellence  and  improve 
productivity. We also extend our LEAN initiatives to customers to improve the efficiency and effectiveness of their operations 
and supply chains. In addition, we seek to develop a distinct competitive advantage through talent management and employee 
development processes and programs.

We have identified certain growth engines that we believe provide substantial opportunities for above-market growth, and have 
developed strategies to address each of these areas of opportunity. These growth engines are a combination of business models, 
selected end markets and product categories, as discussed below.

Grow Our Global Account Customer Relationships and Base. Our typical global account customer is a large, multi-location 
industrial or commercial company, a large utility, a major contractor, or a government or institutional customer. Our global account 
program  is  designed  to  provide  customers  with  supply  chain  management  services  and  cost  reductions  by  coordinating  and 
standardizing activity for MRO materials and OEM direct materials across their multiple locations, utilizing our broad geographic 
footprint and our largely integrated information technology platform. Comprehensive account plans are developed and managed 
at the local, national and international levels to prioritize activities, identify key performance measures, and track progress against 

2

 
 
 
objectives. We involve our preferred suppliers early in the implementation process to contribute expertise and product knowledge 
to accelerate program implementation and deliver cost savings and process improvements.

Through our growth initiatives, we plan to continue to expand the suite of products and services we offer to current customer 
sites, while increasing our reach to serve additional customer locations. We plan on expanding our customer base by capitalizing 
on our industry expertise and supply chain optimization capabilities.

Extend Our Position in Integrated Supply Programs. Our integrated supply programs focus on optimizing the supply chain 
and replacing the traditional multi-vendor, resource-intensive procurement process with a single, outsourced, automated process. 
Each integrated supply program employs our product and distribution expertise to reduce the number of suppliers, total procurement 
costs, and administrative expenses, while meeting the customers’ service needs and improving their operating controls. We believe 
that large customers will seek to utilize such services to consolidate and simplify their MRO and OEM supply chains.

We  are  expanding  our  position  in  North America  as  an  integrated  supply  service  provider  by  building  upon  established 
relationships within our large customer base and premier supplier network, and extending our services to additional customers 
and locations around the world. Our services are offered across all four of our end markets.

Expand Our Relationships with Construction Contractors. We support new construction, renovation and retrofit projects 
across  a  wide  variety  of  vertical  markets,  including  manufacturing,  healthcare,  education,  enterprise  data  communications, 
telecommunications, energy and government infrastructure. We believe that significant cross selling opportunities exist for our 
electrical and communications products and expertise, and we are utilizing our global account and integrated supply programs, 
LEAN initiatives and project management expertise to capitalize on new non-residential construction opportunities.

Expand Products and Services for Utilities. Our investor-owned, public power and utility contractor customers continue to 
focus on improving grid reliability and operating efficiency, while reducing costs. As a result, we anticipate opportunities from 
distribution grid improvement and transmission expansion projects as well as the continued adoption of integrated supply programs. 
Accordingly, we are focused on expanding our logistical and project services and supply chain management programs to increase 
our scope of supply on the distribution grid, generation and other energy projects, including alternative energy projects.

Grow Industrial MRO and Safety Sales. Our sales of industrial MRO materials include a broad range of electrical and non-
electrical products used in the ongoing maintenance and repair of equipment used in production processes. These products are 
also used for facility upkeep in manufacturing, commercial, institutional, and other operations. In addition, through acquisitions, 
we have expanded our safety products, personal protection safety equipment, first aid supplies, and OSHA compliance categories 
to complement the industrial MRO product lines.

Expand International Operations. We seek to capitalize on existing and emerging international market opportunities through 
the expansion of our global product and service platforms. We follow large existing global customers into international markets, 
extending our procurement outsourcing, integrated supply programs and supplier relationships. Once established, we also seek to 
develop new business opportunities in these markets. We believe this strategy of working with well-developed customer and 
supplier relationships significantly reduces risk and provides the opportunity to establish profitable business. Our priorities are 
focused on global vertical markets including energy, mining and metals, manufacturing, and infrastructure, as well as key product 
categories such as communications and security.

Grow Our Communications Products Position. Over the last several years, there has been a convergence of electrical and 
data communications contractors. Our ability to provide both electrical and communications products and services as well as 
automation, electromechanical, non-electrical MRO, physical security and utility products has presented cross selling opportunities 
across WESCO. Communications products are in continual demand due to network upgrades, low voltage security investments, 
data center upgrades and increasing broadband and telecommunications usage.

Grow Lighting System and Sustainability Sales. Lighting applications are undergoing significant innovation, driven by energy 
efficiency and sustainability trends. We have expanded our sales team and marketing initiatives and increased our presence and 
customer base with recent acquisitions. We expect to continue to add product and service offerings to provide lighting and energy-
saving solutions.

Pursue Strategic Acquisitions. Since 2010, we have made fourteen acquisitions that have helped us broaden and strengthen 

our product and services portfolio, increase our customer base, and provide an important source of talent.

We believe that the highly fragmented nature of the electrical and industrial distribution industry will continue to provide 

acquisition opportunities.

Drive  Operational  Excellence.  LEAN  continuous  improvement  is  a  set  of  company-wide  strategic  initiatives  to  increase 
efficiency and effectiveness across the entire business enterprise, including sales, operations and administrative processes. The 
basic principles behind LEAN are to systematically identify and implement improvements through simplification, elimination of 
waste and reduction in errors. We apply LEAN in our distribution environment, and develop and deploy numerous initiatives 
through the Kaizen approach targeting improvements in sales, margin, warehouse operations, transportation, purchasing, working 
3

capital management and administrative processes. Our objective is to continue to implement LEAN initiatives across our business 
enterprise and to extend LEAN services to our customers and suppliers.

Manage Our Talent. We seek to develop a distinct competitive advantage through talent management and employee engagement 
and development. We believe our ability to attract, develop and retain diverse human capital is imperative to ongoing business 
success. We improve workforce capability through various programs and processes that identify, recruit, develop and promote our 
talent base. Significant enhancements in these programs have been made over the last several years, and we expect to continue to 
refine and enhance these programs in the future.

Products and Services

Products

Our network of branches and distribution centers stock approximately 230,000 unique product stock keeping units and we 
provide customers with access to more than 1,000,000 different products. Each branch tailors its inventory to meet the needs of 
its local customers.

Representative product categories and associated product lines that we offer include:

•  General Supplies. Wiring devices, fuses, terminals, connectors, boxes, enclosures, fittings, lugs, terminations, wrap, 
splicing  and  marking  equipment,  tools  and  testers,  safety,  personal  protection,  sealants,  cutting  tools,  adhesives, 
consumables, fasteners, janitorial and other MRO supplies;

•  Wire, Cable and Conduit. Wire, cable, raceway, metallic and non-metallic conduit;

•  Communications and Security. Structured cabling systems, broadband products, low voltage specialty systems, specialty 

wire and cable products, equipment racks and cabinets, access control, alarms, cameras, paging and voice solutions;

•  Electrical Distribution and Controls. Circuit breakers, transformers, switchboards, panel boards, metering products 

and busway products;

• 

Lighting and Sustainability. Lamps, fixtures, ballasts and lighting control products, and

•  Automation,  Controls  and  Motors.  Motor  control  devices,  drives,  surge  and  power  protection,  relays,  timers, 

pushbuttons, operator interfaces, switches, sensors, and interconnects.

The following table sets forth sales information by product category:

(percentages based on total sales)

General Supplies

Wire, Cable and Conduit

Communications and Security

Electrical Distribution and Controls
Lighting and Sustainability

Automation, Controls and Motors

Year Ended December 31,

2016

40%

14%

15%

11%
12%

8%

2015

40%

15%

15%

11%
10%

9%

2017

40%

15%

15%

10%
12%

8%

We purchase products from a diverse group of more than 26,000 suppliers. In 2017, our ten largest suppliers accounted for 
approximately 33% of our purchases. Our largest supplier in 2017 was Eaton Corporation, accounting for approximately 11% of 
our purchases. No other supplier accounted for more than 4% of our total purchases.

Our supplier relationships are important to us, providing access to a wide range of products, services, technical training, and 
sales and marketing support. We have approximately 300 commercial agreements with more than 200 preferred suppliers and 
purchase nearly 60% of our products pursuant to these arrangements. Consistent with industry practice, most of our agreements 
with suppliers, including both distribution agreements and commercial agreements, are terminable by either party on 60 days 
notice or less.

4

 
 
 
Services

As part of our overall offering, we provide customers a comprehensive portfolio of value-added solutions within a wide range 
of service categories including construction, e-commerce, energy and sustainability, engineering services, production support, 
safety and security, supply chain optimization, training, and working capital. These solutions are designed to address our customers' 
business needs through:

•  Technical advisory strategies, including product lifecycle management and migration planning;

• 

Supply chain and inventory optimization programs, including just-in-time delivery and vendor managed inventory;

•  Consultation on production and operational efficiencies from cross-functional, cost saving teams;

•  Transactional process improvements utilizing a suite of e-commerce solutions;

•  Operational safety and product training for customer's employees, and

•  Dedicated on-site support personnel.

Competitive Strengths

As a leading electrical distributor in a highly fragmented North American market, we compete directly with global, national, 
regional, and local distributors of electrical and other industrial supplies, along with buying groups formed by smaller distributors. 
Competition is generally based on product line breadth, product availability, service capabilities and price. We believe that our 
market leadership, broad product offering, value-added services, technical expertise, extensive distribution network and low-cost 
operator status provide distinct competitive advantages.

Market Leadership. Our ability to manage complex global supply chains, and multi-site facility maintenance programs and 
construction projects, which require special sourcing, technical advice, logistical support and locally based service, has enabled 
us to establish a strong presence in the competitive and fragmented North American electrical distribution market.

Broad Product Offering and Value-added Services. We provide a wide range of products, services, and procurement solutions, 
which draw on our product knowledge, supply and logistics expertise, system capabilities and supplier relationships to enable our 
customers to maximize productivity, minimize waste, improve efficiencies, reduce costs and enhance safety. Our broad product 
offering and stable source of supply enables us to consistently meet customers’ wide-ranging capital project, MRO and OEM 
requirements.

Extensive Distribution Network. We operate approximately 500 geographically dispersed branch locations and ten distribution 
centers (six in the United States and four in Canada). Our distribution centers add value for our customers, suppliers, and branches 
through the combination of a broad and deep selection of inventory, online ordering and next-day shipment capabilities, and central 
order handling and fulfillment. Our distribution center network reduces the lead time and cost of supply chain activities through 
its  automated  replenishment  and  warehouse  management  system,  and  provides  economies  of  scale  in  purchasing,  inventory 
management, administration and transportation. This extensive network, which would be difficult and expensive to replicate, 
allows us to:

•  Enhance local customer service, technical support and sales coverage;

•  Tailor individual branch products and services to local customer needs, and

•  Offer multi-site distribution capabilities to large customers and global accounts.

Low-Cost Operator. Our competitiveness has been enhanced by our consistent favorable operating cost position, which is 
based on the use of LEAN, strategically-located distribution centers, and purchasing economies of scale. As a result of these and 
other factors, we believe our operating costs as a percentage of sales has historically been one of the lowest in our industry. Our 
selling, general and administrative expenses as a percentage of revenues for 2017 were 14.3%.

5

Geography

Our network of branches and distribution centers are located primarily in North America. We attribute revenues from external 
customers to individual countries on the basis of the point of sale. The following table sets forth information about us by geographic 
area:

Net Sales
Year Ended December 31,

Long-Lived Assets
December 31,

2017

2016

2015

2017

2016

2015

(In thousands)

United States

$ 5,775,988

75% $ 5,635,803

77% $ 5,665,962

75% $

95,851

$

123,465

$

157,570

Canada

Mexico

1,521,378

77,280

20%

1%

1,394,657

62,430

19%

1%

1,533,705

70,048

21%

1%

Subtotal North American

Operations

7,374,646

7,092,890

7,269,715

Other International

304,375

4%

243,127

3%

248,772

3%

56,591

262

152,704

3,741

60,372

227

63,088

332

184,064

220,990

4,583

5,369

Total

$ 7,679,021

$ 7,336,017

$ 7,518,487

$

156,445

$

188,647

$

226,359

United States. To serve our customers in the United States, we operate a network of approximately 340 branches supported 
by six distribution centers located in Arkansas, Mississippi, Nevada, Pennsylvania, Texas and Wisconsin. Sales in the United States 
represented approximately 75% of our total sales in 2017. According to an industry source, the U.S. electrical wholesale distribution 
industry had estimated sales of nearly $100 billion in 2017.

Canada. To serve our Canadian customers, we operate a network of approximately 130 branches in nine provinces. Branch 
operations are supported by four distribution centers located in Alberta, British Columbia, Ontario and Quebec. Sales in Canada 
represented approximately 20% of our total sales in 2017. Total annual electrical industry sales in Canada were more than $13 
billion in 2017, according to an industry source.

Mexico. We have seven branch locations in Mexico that provide various supply chain services to a broad range of end markets. 

Our headquarters is near Mexico City. Sales in Mexico represented approximately 1% of our total sales in 2017.

Other International. We sell to global customers through export sales offices located in Calgary, Houston, Miami, Montreal 
and Pittsburgh within North America and sales offices and branch operations in various international locations. Sales from other 
international locations represented approximately 4% of our total sales in 2017. Our branches in Aberdeen, Scotland, Dublin, 
Ireland and Manchester, England support sales efforts in Europe and the Middle East. We have branches in Singapore and Thailand 
to support our sales in Asia and a branch near Shanghai to serve customers in China. Furthermore, we support sales in South 
America  through  our  branches  in  Chile,  Ecuador  and  Peru,  and  we  have  operations  in  six  additional  countries.  Many  of  our 
international locations have been established to serve our growing list of customers with global operations.

Intellectual Property

We currently have trademarks, patents and service marks registered with the U.S. Patent and Trademark Office and Canadian 
Intellectual Property Office. The trademarks and service marks registered in the U.S. include: “WESCO®”, our corporate logo 
and the running man logo. The Company's "EECOL" trademark is registered in Canada. In addition, trademarks, patents, and 
service mark applications have been filed in various foreign jurisdictions, including Argentina, Australia, Brazil, Chile, Colombia, 
Costa Rica, Canada, Chile, China, the European Community, Egypt, Hong Kong, India, Indonesia, Japan, Korea, Malaysia, Mexico, 
New Zealand, Norway, Panama, Peru, Philippines, Russia, Singapore, South Africa, Switzerland, Taiwan, Thailand, United Arab 
Emirates, United Kingdom, Venezuela, and Vietnam.

Environmental Matters

Our facilities and operations are subject to federal, state and local laws and regulations relating to environmental protection 
and human health and safety. Some of these laws and regulations may impose strict, joint and several liabilities on certain persons 
for the cost of investigation or remediation of contaminated properties. These persons may include former, current or future owners 
or operators of properties and persons who arranged for the disposal of hazardous substances. Our owned and leased real property 
may give rise to such investigation, remediation and monitoring liabilities under environmental laws. In addition, anyone disposing 
of certain products we distribute, such as ballasts, fluorescent lighting and batteries, must comply with environmental laws that 
regulate certain materials in these products.

We believe that we are in compliance, in all material respects, with applicable environmental laws. As a result, we do not 
anticipate making significant capital expenditures for environmental control matters either in the current year or in the near future.

6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Seasonality

Sales during the first quarter are affected by a reduced level of activity. Sales during the second, third and fourth quarters are 
generally 6 - 8% higher than the first quarter. Sales typically increase beginning in March, with slight fluctuations per month 
through October. During periods of economic expansion or contraction, our sales by quarter have varied significantly from this 
seasonal pattern.

Website Access

Our Internet address is www.wesco.com. Information contained on our website is not part of, and should not be construed as 
being incorporated by reference into, this Annual Report on Form 10-K. We make available free of charge under the “Investors” 
heading on our website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and 
amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as 
amended (the “Exchange Act”), as well as our Proxy Statements, as soon as reasonably practicable after such documents are 
electronically filed or furnished, as applicable, with the Securities and Exchange Commission (the “SEC”). You also may read 
and copy any materials we file with the SEC at the SEC’s Public Reference Room at 100 F Street, NE, Washington, DC 20549-0213. 
You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC 
maintains an Internet site at www.sec.gov that contains reports, proxy and information statements and other information regarding 
issuers like us who file electronically with the SEC.

In  addition,  our  charters  for  our  Executive  Committee,  Nominating  and  Governance  Committee, Audit  Committee  and 
Compensation  Committee,  as  well  as  our  Corporate  Governance  Guidelines,  Code  of  Principles  for  Senior  Executives, 
Independence Policy, Global Anti-Corruption Policy, and Code of Business Ethics and Conduct for our Directors, officers and 
employees, are all available on our website in the “Corporate Governance” link under the “Investors” heading.

Forward-Looking Information

This Annual Report on Form 10-K contains various “forward-looking statements” within the meaning of the Private Securities 
Litigation Reform Act of 1995. These statements involve certain unknown risks and uncertainties, including, among others, those 
contained  in  Item 1,  “Business,”  Item 1A,  “Risk  Factors,”  and  Item 7,  “Management’s  Discussion  and Analysis  of  Financial 
Condition and Results of Operations.” When used in this Annual Report on Form 10-K, the words “anticipates,” “plans,” “believes,” 
“estimates,” “intends,” “expects,” “projects,” “will” and similar expressions may identify forward-looking statements, although 
not all forward-looking statements contain such words. Such statements, including, but not limited to, our statements regarding 
business strategy, growth strategy, competitive strengths, productivity and profitability enhancement, competition, new product 
and service introductions and liquidity and capital resources, are based on management’s beliefs, as well as on assumptions made 
by and information currently available to management, and involve various risks and uncertainties, some of which are beyond our 
control. Our actual results could differ materially from those expressed in any forward-looking statement made by us or on our 
behalf. In light of these risks and uncertainties, there can be no assurance that the forward-looking information will in fact prove 
to be accurate. We have undertaken no obligation to publicly update or revise any forward-looking statements, whether as a result 
of new information, future events or otherwise.

7

Executive Officers

Our executive officers and their respective ages and positions as of February 21, 2018, are set forth below.

Name
John J. Engel

Diane E. Lazzaris

Robert Minicozzi

David S. Schulz

Kimberly G. Windrow

Age
56

51

56

52

60

Position
Chairman, President and Chief Executive Officer

Senior Vice President and General Counsel

Vice President and Chief Information Officer

Senior Vice President and Chief Financial Officer

Senior Vice President and Chief Human Resources Officer

Set forth below is biographical information for our executive officers listed above.

John J. Engel was elected as Chairman of the Board at the 2011 Annual Meeting and has served as President and Chief 
Executive Officer since 2009. Previously, Mr. Engel served as our Senior Vice President and Chief Operating Officer from 2004 
to 2009. Before joining WESCO in 2004, Mr. Engel served as Senior Vice President and General Manager of Gateway, Inc., 
Executive Vice President and Senior Vice President of Perkin Elmer, Inc., Vice President and General Manager of Allied Signal, 
Inc., and various engineering, manufacturing and general management positions at General Electric Company.

Diane E. Lazzaris has served as our Senior Vice President and General Counsel since January 2014, and from 2010 to December 
2013 she served as our Vice President, Legal Affairs. From 2008 to 2010, Ms. Lazzaris served as Senior Vice President - Legal, 
General Counsel and Corporate Secretary of Dick’s Sporting Goods, Inc. From 1994 to 2008, she held various corporate counsel 
positions at Alcoa Inc., including Group Counsel to a group of global businesses.

Robert Minicozzi has served as our Vice President and Chief Information Officer since January 2016. From April 2012 to 
December 2015, Mr. Minicozzi served as Vice President and Global Divisional Chief Information Officer of Arrow Electronics, 
Inc. and previously held various information systems leadership positions with Arrow Electronics, Inc.

David S. Schulz has served as our Senior Vice President and Chief Financial Officer since October 2016. From April 2016 to 
October 2016, he served as Senior Vice President and Chief Operating Officer of Armstrong Flooring, Inc. From November 2013 
to March 2016, he served as Senior Vice President and Chief Financial Officer of Armstrong World Industries, Inc., and as Vice 
President, Finance of the Armstrong Building Products division from 2011 to November 2013. Prior to joining Armstrong World 
Industries in 2011, he held various financial leadership roles with Procter & Gamble and The J.M. Smucker Company. Mr. Schulz 
began his career as an officer in the United States Marine Corps.

Kimberly G. Windrow has served as our Senior Vice President and Chief Human Resources Officer since January 2014, and 
from August 2010 to December 2013 she served as our Vice President, Human Resources. From 2004 until 2010, Ms. Windrow 
served as Senior Vice President of Human Resources for The McGraw Hill Companies in the education segment. From 2001 until 
2004, she served as Senior Vice President of Human Resources for The MONY Group, and from 1988 until 2000, she served in 
various Human Resource positions at Willis, Inc.

8

Item 1A. Risk Factors.

The following factors, among others, could cause our actual results to differ materially from the forward-looking statements 
we make. All forward-looking statements attributable to us or persons working on our behalf are expressly qualified by the following 
factors. This information should be read in conjunction with Item 7, Management’s Discussion and Analysis of Financial Condition 
and Results of Operations, Item 7A, Quantitative and Qualitative Disclosures about Market Risks and the consolidated financial 
statements and related notes included in this Form 10-K.

Operational Risk Factors

Adverse conditions in the global economy and disruptions of financial markets could negatively impact our results of 
operations, cash flows or financial position. 

Our results of operations are affected by the level of business activity of our customers, which in turn is affected by global 
economic conditions and market factors impacting the industries and markets that they serve. Certain global economies and markets 
continue to experience significant uncertainty and volatility, particularly commodity-driven end markets such as oil and gas and 
metals and mining. Adverse economic conditions or lack of liquidity in these markets, particularly in North America, may adversely 
affect our revenues and operating results. Economic and financial market conditions may also affect the availability of financing 
for projects and for our customers' capital or other expenditures, which can result in project delays or cancellations and thus affect 
demand for our products. There can be no assurance that any governmental responses to economic conditions or disruptions in 
the financial markets ultimately will stabilize the markets or increase our customers' liquidity or the availability of credit to our 
customers. Should one or more of our larger customers declare bankruptcy, it could adversely affect the collectability of our 
accounts receivable, along with bad debt reserves and net income. In addition, our ability to access the capital markets may be 
restricted at a time when we would like, or need, to do so. The economic, political and financial environment also may affect our 
business and financial condition in ways that we currently cannot predict, and there can be no assurance that economic, political 
and market conditions will not adversely affect our results of operations, cash flows or financial position in the future. 

Certain events or conditions, including a failure or breach of our information security systems, could lead to interruptions 
in  our  operations,  which  may  materially  adversely  affect  our  business  operations,  financial  condition,  and  results  of 
operations. 

We  operate  a  number  of  facilities  and  we  coordinate  company  activities,  including  information  technology  systems  and 
administrative services and the like, through our headquarters operations. Our operations depend on our ability to maintain existing 
systems and implement new technology, which includes allocating sufficient resources to periodically upgrade our information 
technology systems, and to protect our equipment and the information stored in our databases against both manmade and natural 
disasters, as well as power losses, computer and telecommunications failures, technological breakdowns, unauthorized intrusions, 
cyber-attacks, and other events. Conversions to new information technology systems may result in cost overruns, delays or business 
interruptions. If our information technology systems are disrupted, become obsolete or do not adequately support our strategic, 
operational or compliance needs, it could result in a competitive disadvantage and adversely affect our business operations and 
financial  condition,  including  our  ability  to  process  orders,  receive  and  ship  products,  maintain  inventories,  collect  accounts 
receivable and pay expenses, therefore impacting our results of operations.

Because we rely heavily on information technology both in serving our customers and in our enterprise infrastructure in order 
to achieve our objectives, we may be vulnerable to damage or intrusion from a variety of cyber-attacks, including computer viruses, 
worms or other malicious software programs that access our systems. Despite the precautions we take to mitigate the risks of such 
events, an attack on our enterprise information technology system could result in theft or disclosure of our proprietary or confidential 
information or a breach of confidential customer, supplier or employee information. Such events could have an adverse impact 
on revenue and harm our reputation. Additionally, such an event could cause us to incur legal liabilities and costs, which could be 
significant, in order to address and remediate the effects of an attack and related security concerns. 

We also depend on accessible office facilities, distribution centers and information technology data centers for our operations 
to function properly. An interruption of operations at any of our distribution centers could have a material adverse effect on the 
operations of branches served by the affected distribution center. Such disaster related risks and effects are not predictable with 
certainty and, although they typically can be mitigated, they cannot be eliminated. We seek to mitigate our exposures to disaster 
events in a number of ways. For example, where feasible, we design the configuration of our facilities to reduce the consequences 
of disasters. We also maintain insurance for our facilities against casualties, and we evaluate our risks and develop contingency 
plans for dealing with them. Although we have reviewed and analyzed a broad range of risks applicable to our business, the ones 
that actually affect us may not be those that we have concluded are most likely to occur. Furthermore, although our reviews have 
led to more systematic contingency planning, our plans are in varying stages of development and execution, such that they may 
not be adequate at the time of occurrence for the magnitude of any particular disaster event that we may encounter.

9

An increase in competition could decrease sales, profit margins, and earnings. 

We operate in a highly competitive industry and compete directly with global, national, regional and local providers of like 
products and services. Some of our existing competitors have, and new market entrants may have, greater resources than us. 
Competition  is  generally  based  on  product  line  breadth,  product  availability,  service  capabilities  and  price.  Other  sources  of 
competition are buying groups formed by smaller distributors to increase purchasing power and provide some cooperative marketing 
capability, as well as e-commerce companies. There may be new market entrants with non-traditional business and customer 
service models, resulting in increased competition and changing industry dynamics. 

Existing or future competitors may seek to gain or retain market share by reducing prices, and we may be required to lower 
our prices or may lose business, which could adversely affect our financial results. Also, to the extent that we do not meet changing 
customer preferences or demands, or to the extent that one or more of our competitors becomes more successful with private label 
products, on-line offerings or otherwise, our ability to attract and retain customers could be materially adversely affected. Existing 
or future competitors also may seek to compete with us for acquisitions, which could have the effect of increasing the price and 
reducing the number of suitable acquisitions. These factors, in addition to competitive pressures resulting from the fragmented 
nature of our industry, could affect our sales, profit margins and earnings.

Expansion into new business activities, industries, product lines or geographic areas could subject the company to increased 
costs and risks and may not achieve the intended results.

We have invested significantly in expanding our e-commerce capabilities and online customer experience. If our efforts to 
expand our capabilities in this area are not successful, we may not realize the return on our investments as anticipated, or our 
operating results could be adversely affected by slower than expected sales growth or additional costs. Furthermore, engaging in 
or significantly expanding business activities in product sourcing, sales and services could subject the company to unexpected 
costs  and  risks.  Such  activities  could  subject  us  to  increased  operating  costs,  product  liability,  regulatory  requirements  and 
reputational risks. Our expansion into new and existing markets, including manufacturing related or regulated businesses, may 
present competitive distribution and regulatory challenges that differ from current ones. We may be less familiar with the target 
customers and may face different or additional risks, as well as increased or unexpected costs, compared to existing operations. 
Growth into new markets may also bring us into direct competition with companies with whom we have little or no past experience 
as competitors. To the extent we are reliant upon expansion into new geographic, industry and product markets for growth and do 
not meet the new challenges posed by such expansion, our future sales growth could be negatively impacted, our operating costs 
could increase, and our business operations and financial results could be negatively affected. 

Loss of key suppliers, product cost fluctuations, lack of product availability, or inefficient supply chain operations could 
decrease sales, profit margins, and earnings.

Most of our agreements with suppliers are terminable by either party on 60 days' notice or less. Our 10 largest suppliers in 
2017 accounted for approximately 33% of our purchases for the period. Our largest supplier in 2017 was Eaton Corporation, 
accounting for approximately 11% of our purchases. The loss of, or a substantial decrease in the availability of, products from any 
of these suppliers, a supplier's change in sales strategy to rely less on distribution channels, the loss of key preferred supplier 
agreements, or disruptions in a key supplier's operations could have a material adverse effect on our business. Supply interruptions 
could arise from shortages of raw materials, effects of economic, political or financial market conditions on a supplier's operations, 
labor disputes or weather conditions affecting products or shipments, transportation disruptions, information system disruptions 
or other reasons beyond our control. 

In addition, certain of our products, such as wire and conduit, are commodity price based products and may be subject to 
significant price fluctuations which are beyond our control. While increases in the cost of energy or products could have adverse 
effects, decreases in those costs, particularly if severe, could also adversely impact us by creating deflation in selling prices, which 
could cause our gross profit margin to deteriorate. Fluctuations in energy or raw materials costs can also adversely affect our 
customers. Declines in oil and gas prices can negatively impact our customers operating in those industries and, consequently, our 
sales to those customers. Furthermore, we cannot be certain that particular products or product lines will be available to us, or 
available in quantities sufficient to meet customer demand. Such limited product access could cause us to be at a competitive 
disadvantage. The profitability of our business is also dependent upon the efficiency of our supply chain. An inefficient or ineffective 
supply chain strategy or operations could increase operational costs, decrease sales, profit margins and earnings, which could 
adversely affect our business.

We must attract, retain and motivate key employees, and the failure to do so may adversely affect our business. 

Our success depends on hiring, retaining and motivating key employees, including executive, managerial, sales, technical, 
marketing  and  support  personnel. We  may  have  difficulty  locating  and  hiring  qualified  personnel.  In  addition,  we  may  have 
difficulty retaining such personnel once hired, and key people may leave and compete against us. The loss of key personnel or 

10

our failure to attract and retain other qualified and experienced personnel could disrupt or adversely affect our business, its sales 
and operating results. In addition, our operating results could be adversely affected by increased costs due to increased competition 
for employees, higher employee turnover, which may also result in loss of significant customer business, or increased employee 
benefit costs.

Acquisitions that we may undertake would involve a number of inherent risks, any of which could cause us not to 
realize the benefits anticipated to result.

We have expanded our operations through organic growth and selected acquisitions of businesses and assets, and may seek to 
do so in the future. Acquisitions involve various inherent risks, including: problems that could arise from the integration of the 
acquired  business;  uncertainties  in  assessing  the  value,  strengths,  weaknesses,  contingent  and  other  liabilities  and  potential 
profitability of acquisition candidates; the potential loss of key employees of an acquired business; the ability to achieve identified 
operating and financial synergies anticipated to result from an acquisition or other transaction; unanticipated changes in business, 
industry or general economic conditions that affect the assumptions underlying the acquisition or other transaction rationale; and 
expansion into new countries or geographic markets where we may be less familiar with operating requirements, target customers 
and regulatory compliance. Any one or more of these factors could increase our costs or cause us not to realize the benefits 
anticipated to result from the acquisition of a business or assets.

While  there  are  risks  associated  with  acquisitions  generally,  including  integration  risks,  there  are  additional  risks  more 
specifically  associated  with  owning  and  operating  businesses  internationally,  including  those  arising  from  import  and  export 
controls, foreign currency exchange rate changes, material developments in political, regulatory or economic conditions impacting 
those operations and various environmental and climatic conditions in particular areas of the world.

Financial Risk Factors

Changes  in  tax  laws  or  challenges  to  the  Company's  tax  positions  by  taxing  authorities  could  adversely  impact  the 
Company's results of operations and financial condition.

We are subject to taxes in jurisdictions in which we do business, including but not limited to taxes imposed on our income, 
receipts, stockholders' equity, property, sales, purchases and payroll. As a result, the tax expense we incur can be adversely affected 
by changes in tax law. We frequently cannot anticipate these changes in tax law, which can cause unexpected volatility in our 
results of operations. While not limited to the United States (U.S.) and Canada, changes in the tax law at the federal and state/
provincial levels in the United States and Canada can have a materially adverse effect on our results of operations. 

Additionally, the tax laws to which the Company is subject are inherently complex and ambiguous. Therefore, we must interpret 
the applicable laws and make subjective judgments about the expected outcome upon challenge by the applicable taxing authorities. 
As a result, the impact on our results from operations of the application of enacted tax laws to our facts and circumstances is 
frequently uncertain. If a tax authority successfully challenges our interpretation and application of the tax law to our facts and 
circumstances, there can be no assurance that we can accurately predict the outcome and the taxes ultimately owed upon effective 
settlement, which may differ from the tax expense recognized in our consolidated statements of income and comprehensive income 
(loss) and accrued in our consolidated balance sheets. Additionally, if we cannot meet liquidity requirements in the United States, 
we may have to repatriate funds from overseas, which would result in additional income taxes being incurred on the amount 
repatriated.

Uncertainties in the interpretation and application of the Tax Cuts and Jobs Act of 2017 could materially affect our tax 
obligations and effective tax rate. 

The Tax Cuts and Jobs Act of 2017 ("TCJA") was enacted on December 22, 2017, and it significantly affected U.S. tax law 
by, among other things, changing how the U.S. imposes income tax on multinational corporations.  The TCJA requires complex 
computations not previously provided in U.S. tax law, and the application of accounting guidance for such items is currently 
uncertain in some respects.  Further, compliance with the TCJA and the accounting for such provisions require accumulation of 
information not previously required or regularly produced.  The U.S. Department of Treasury has broad authority to issue regulations 
and interpretative guidance that may significantly impact how the law is applied and thus impact our results of operations in the 
period issued.

Also on December 22, 2017, the Securities and Exchange Commission ("SEC") issued guidance to address the accounting 
implications of the TCJA in which a registrant does not have the necessary information available, prepared or analyzed (including 
computations) in reasonable detail to complete the accounting for certain income tax effects of the TCJA. We have recorded 
provisional estimates in our financial statements with respect to certain income tax effects of the TCJA for which the accounting 
is  incomplete,  but  a  reasonable  estimate  was  able  to  be  determined.   We  will  continue  to  perform  additional  analysis  on  the 
application of the TCJA, taking into account any additional regulatory guidance that is issued by the applicable taxing authorities, 
which may result in adjustments to our previously reported provisional estimates.  In accordance with the SEC's guidance, we 

11

will recognize any adjustments to our previously reported provisional estimates in the relevant future periods, which could materially 
affect our tax obligations and our effective tax rate.

Fluctuations in foreign currency have an effect on our results from operations. 

The results of our foreign operations are reported in the local currency and then translated into U.S. dollars at the applicable 
exchange rates for inclusion in our consolidated financial statements. The exchange rates between some of these currencies and 
the U.S. dollar have fluctuated significantly in recent years, and may continue to do so in the future. We may incur losses related 
to foreign currency fluctuations, and foreign exchange controls may prevent us from repatriating cash in countries outside the U.S.  
In addition, because our financial statements are stated in U.S. dollars, such fluctuations may also affect the comparability of our 
results between financial periods.  

Our  outstanding  indebtedness  requires  debt  service  commitments  that  could  adversely  affect  our  ability  to  fulfill  our 
obligations and could limit our growth and impose restrictions on our business. 

As of December 31, 2017, excluding debt discount and debt issuance costs, we had $1.36 billion of consolidated indebtedness. 
We and our subsidiaries may undertake additional borrowings in the future, subject to certain limitations contained in the debt 
instruments governing our indebtedness. Over the next three years, we will be required to repay or refinance approximately $512.8 
million of our currently outstanding indebtedness.

Our debt service obligations impact our ability to operate and grow our business. Our payments of principal and interest on 
our indebtedness reduce the amount of funds available to us to invest in operations, future business opportunities, acquisitions, 
and other potentially beneficial activities. Our debt service obligations also increase our vulnerability to adverse economic, financial 
market and industry conditions.  Our ability to service and refinance our indebtedness, make scheduled payments on our operating 
leases and fund capital expenditures, acquisitions or other business opportunities, will depend in large part on both our future 
performance and the availability of additional financing in the future.  There can be no assurance that our business will continue 
to generate sufficient cash flows from operations in the future to service our debt, make necessary capital expenditures, or meet 
other cash needs. If unable to do so, we may be required to refinance all or a portion of our existing debt, sell assets, or obtain 
additional financing. 

Our debt agreements contain restrictions that may limit our ability to operate our business. 

Our credit facilities require us to maintain specific earnings to fixed expense ratios and to meet minimum net worth requirements 
in  certain  circumstances.  In  addition,  our  credit  facilities  and  our  other  debt  agreements  contain,  and  any  of  our  future  debt 
agreements may contain, additional covenant restrictions that limit our ability to operate our business, or are dependent upon our 
future financial performance.      

As a result of these covenants, our ability to respond to changes in business and economic conditions and to obtain additional 
financing, if needed, may be significantly restricted, and we may be prevented from engaging in transactions that might otherwise 
be beneficial to us. See the liquidity section in "Item 7. Management's Discussion and Analysis" for further details.

There is a risk that the market value of our common stock may decline.

Stock markets have experienced significant price and trading volume fluctuations, and the market prices of companies in our 
industry have been volatile. For some issuers, the markets have exerted downward pressure on stock prices and credit capacity. It 
is impossible to predict whether the price of our common stock will rise or fall. Trading prices of our common stock will be 
influenced by our operating results and prospects and by economic, political, financial, and other factors.

Regulatory and Legal Risk Factor

We are subject to costs and risks associated with global laws and regulations affecting our business, as well as litigation 
for product liability or other matters affecting our business. 

The global legal and regulatory environment is complex and exposes us to compliance costs and risks, as well as litigation and 
other legal proceedings, which could materially affect our operations and financial results. These laws and regulations may change, 
sometimes significantly, as a result of political or economic events, and some changes are anticipated to occur in the coming year. 
They include tax laws and regulations, import and export laws and regulations, labor and employment laws and regulations, product 
safety, occupational safety and health laws and regulations, securities and exchange laws and regulations, data privacy laws and 
regulations (and other laws applicable to publicly-traded companies such as the Foreign Corrupt Practices Act), and environmental 
laws and regulations. Furthermore, as a government contractor selling to federal, state and local government entities, we are also 
subject to a wide variety of additional laws and regulations. Proposed laws and regulations in these and other areas could affect 
the cost of our business operations. 

12

From time to time we are involved in legal proceedings, audits or investigations which may relate to, for example, product 
liability, labor and employment (including wage and hour), tax, escheat, import and export compliance, government contracts, 
worker health and safety, and general commercial and securities matters. While we believe the outcome of any pending matter is 
unlikely to have a material adverse effect on our financial condition or liquidity, additional legal proceedings may arise in the 
future and the outcome of these as well as other contingencies could require us to take actions, which could adversely affect our 
operations or could require us to pay substantial amounts of money. 

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

We have approximately 500 branches, of which approximately 340 are located in the United States, approximately 130 are 
located in Canada, seven are located in Mexico and the remainder are in other countries located in Asia, Europe and South America. 
Approximately 15% of our branches are owned facilities, and the remainder are leased.

The following table summarizes our distribution centers:

Location

Little Rock, AR
Byhalia, MS (1)
Sparks, NV
Warrendale, PA (1)
Dallas, TX

Madison, WI

Edmonton, AB

Burnaby, BC

Mississauga, ON

Montreal, QC

Square Feet

Leased/Owned

100,000
148,000

199,000

194,000

112,000

136,000

101,000

65,000

246,000

126,000

Leased
Owned

Leased

Owned

Leased

Leased

Leased

Leased

Leased

Leased

(1)  Property pledged as collateral under our Term Loan Facility. 

We also lease our 97,000 square-foot headquarters in Pittsburgh, Pennsylvania. We do not regard the real property associated 
with any single branch location as material to our operations. We believe our facilities are in good operating condition and are 
adequate for their respective uses.

Item 3. Legal Proceedings.

From time to time, a number of lawsuits and claims have been or may be asserted against us relating to the conduct of our 
business, including routine litigation relating to commercial and employment matters. The outcome of any litigation cannot be 
predicted with certainty, and some lawsuits may be determined adversely to us. However, management does not believe that the 
ultimate outcome of any such pending matters is likely to have a material adverse effect on our financial condition or liquidity, 
although the resolution in any fiscal period of one or more of these matters may have a material adverse effect on our results of 
operations for that period. 

Information  relating  to  legal  proceedings  is  included  in  Note  13,  "Commitments  and  Contingencies,"  of  the  Notes  to 

Consolidated Financial Statements and is incorporated herein by reference.

Item 4. Mine Safety Disclosures.

Not applicable.

13

 
 
 
PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities.

Market, Stockholder and Dividend Information. Our common stock is listed on the New York Stock Exchange under the 
symbol “WCC.” As of February 20, 2018, there were 47,056,716 shares of common stock outstanding held by approximately 17
holders of record. We have not paid dividends on the common stock and do not currently plan to pay dividends. We do, however, 
evaluate the possibility from time to time. It is currently expected that earnings will be reinvested to support growth initiatives, 
acquisitions, debt reduction, and share repurchases. In addition, our Revolving Credit Facility, Term Loan Facility, 2021 Notes 
and 2024 Notes limit our ability to pay dividends and repurchase our common stock. See Part II, Item 7, “Management’s Discussion 
and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources.” 

The following table sets forth the high and low sales prices per share of our common stock, as reported on the New York Stock 

Exchange, for the periods indicated.

Quarter
2016

First
Second

Third

Fourth
2017

First

Second

Third

Fourth

Sales Prices

High

Low

$

$

55.92
62.66

63.90

73.40

$

76.15

$

70.95

60.50

69.35

34.00
50.64

49.67

51.45

64.25

53.60

48.95

57.25

Issuer Purchases of Equity Securities. On December 17, 2014, WESCO announced that its Board of Directors approved, on 
December 11, 2014, the repurchase of up to $300 million of the Company's common stock through December 31, 2017. Under 
this repurchase authorization, WESCO repurchased 4,247,113 shares of the Company's common stock for $250.0 million.

On December 13, 2017, WESCO announced that its Board of Directors approved, on December 7, 2017, the repurchase of up 
to $300 million of the Company's common stock through December 31, 2020. As of December 31, 2017, no shares have been 
repurchased under this repurchase authorization.

14

 
 
 
 
 
Company Performance. The following stock price performance graph illustrates the cumulative total return on an investment 
in WESCO International, a 2017 Performance Peer Group, and the Russell 2000 Index. The graph covers the period from December 
31, 2012 to December 31, 2017, and assumes that the value for each investment was $100 on December 31, 2012, and that all 
dividends were reinvested.

2017 Performance Peer Group (1):
Anixter International, Inc.

Essendant, Inc.

MSC Industrial Direct Co., Inc.

Applied Industrial Technologies, Inc.

Fastenal Company

Rexel SA

Arrow Electronics, Inc.

Avnet, Inc.

Barnes Group

Eaton Corporation Plc

Genuine Parts Company

HD Supply Holdings, Inc.

Hubbell, Inc.

MRC Global, Inc.

Rockwell Automation, Inc.

Tech Data Corporation

W.W. Grainger, Inc.

1  Airgas, Inc. and Ingram Micro, Inc. were removed from the performance peer group in 2017 due to acquisition.

15

Item 6. Selected Financial Data.

Selected financial data and significant events related to the Company’s financial results for the last five fiscal years are listed 
below. The financial data should be read in conjunction with the Consolidated Financial Statements and Notes thereto included 
in Item 8, and with Management’s Discussion and Analysis of Financial Condition and Results of Operations, included in Item 7.

Year Ended December 31,
(In millions, except per share data)

Income Statement Data:

Net sales

2017

2016

2015

2014

2013

$ 7,679.0

$ 7,336.0

$ 7,518.5

$ 7,889.6

$ 7,513.3

Cost of goods sold (excluding depreciation and amortization)

Selling, general and administrative expenses

6,194.4

1,099.6

5,887.8

1,049.3

6,024.8

1,055.0

6,278.6

1,076.8

Depreciation and amortization

Income from operations

Interest expense, net
Loss on debt extinguishment (1)
Other loss (2)
Income before income taxes

Provision for income taxes

Net income
 Net loss (income) attributable to noncontrolling interests (3)
 Net income attributable to WESCO International

Earnings per common share attributable to WESCO

International

Basic

Diluted

Weighted-average common shares outstanding

Basic

Diluted
Other Financial Data:

Capital expenditures

Net cash provided by operating activities

Net cash used in investing activities

Net cash used in financing activities
Balance Sheet Data:
Total assets (4)
Total debt (including current and short-term debt) (5)
Stockholders’ equity (4)

64.0

321.0

68.5

—

—

252.5

89.3

163.2

0.3

66.9

332.0

76.6

123.9

—

131.5

30.4

101.1

0.5

65.0

373.7

69.8

—

—

303.9

95.5

208.4

2.3

68.0

466.2

82.1

—

—

384.1

108.7

275.4

0.5

$

163.5

$

101.6

$

210.7

$

275.9

$

$

$

3.42

3.38

$

$

2.30

2.10

$

$

4.85

4.18

$

$

6.21

5.18

$

$

47.8

48.4

44.1

48.3

43.4

50.4

44.4

53.3

5,967.9

996.8

67.6

481.0

85.6

13.2

2.3

379.9

103.4

276.5
(0.1)
276.4

6.26

5.25

44.1

52.7

$

21.5

$

18.0

$

21.7

$

20.5

$

27.8

149.1
(5.3)
(141.2)

300.2
(70.5)
(276.3)

283.1
(170.2)
(67.8)

251.2
(144.2)
(95.5)

315.1
(18.2)
(257.5)

$ 4,735.5

$ 4,431.8

$ 4,569.7

$ 4,754.4

$ 4,648.9

1,348.6

2,116.1

1,385.3

1,963.6

1,483.4

1,773.9

1,415.6

1,928.2

1,487.7

1,764.8

(1)  Represents the loss recognized in 2016 related to the redemption of the then outstanding 6.0% Convertible Senior Debentures 
due 2029 ("2029 Debentures") and the loss recognized in 2013 related to the $500 million prepayment made to the U.S. sub-
facility of the Term Loan Facility.

(2)  Represents the loss on the sale of a foreign operation in 2013. 
(3)  Represents the portion of net loss (income) attributable to consolidated entities that are not owned by the Company.
(4)  The  Consolidated  Balance  Sheet  at  December  31,  2016  was  revised  from  the  previously  issued  financial  statements. The 
revision impacted the presentation of total assets and stockholders' equity. See Note 2 of the Notes to Consolidated Financial 
Statements.   

(5)  Includes the discount related to the 6.0% Convertible Senior Debentures due 2029 and Term Loan Facility. For 2017, 2016 

and 2015, also includes debt issuance costs. See Note 7 of the Notes to Consolidated Financial Statements.

16

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion should be read in conjunction with the audited consolidated financial statements and notes thereto 

included in Item 8 of this Annual Report on Form 10-K.

Company Overview

Our  2017  financial  results  reflect  a  return  to  growth,  driven  by  improved  business  momentum  in  our  end  markets  and 
geographies. Sales increased $343.0 million, or 4.7%, over the prior year. Foreign exchange rates and acquisitions positively 
impacted net sales by 0.4% and 0.2%, respectively, and were partially offset by a 0.4% impact from the number of work days, 
resulting in organic sales growth of 4.5%. Cost of goods sold as a percentage of net sales was 80.7% and 80.3% in 2017 and 2016, 
respectively. Operating income was $320.9 million for 2017, compared to $332.1 million for 2016. Operating income decreased 
due to lower gross margin and the restoration of incentive and discretionary compensation. Net income attributable to WESCO 
International of $163.5 million increased by 60.9% compared to 2016 net income of $101.6 million, which included a $123.9 
million loss on debt redemption. Earnings per diluted share attributable to WESCO International was $3.38 in 2017, based on 48.4 
million diluted shares, compared with earnings per diluted share of $2.10 in 2016, based on 48.3 million diluted shares. Excluding 
the impact of the TCJA of $0.55, adjusted earnings per diluted share for 2017 was $3.93.

Our  end  markets  consist  of  industrial  firms,  electrical  and  data  communications  contractors,  utilities,  and  commercial 
organizations, institutions and government entities. Our transaction types to these markets can be categorized as stock, direct ship 
and  special  order.  Stock  orders  are  filled  directly  from  existing  inventory  and  represent  approximately  52%  of  total  sales. 
Approximately 38% of our total sales are direct ship sales. Direct ship sales are typically custom-built products, large orders or 
products that are too bulky to be easily handled and, as a result, are shipped directly to the customer from the supplier. Special 
orders are for products that are not ordinarily stocked in inventory and are ordered based on a customer’s specific request. Special 
orders represent the remaining 10% of total sales.

We have historically financed our working capital requirements, capital expenditures, acquisitions, share repurchases and new 
branch openings through internally-generated cash flow, debt issuances, borrowings under our Revolving Credit Facility and 
funding through our Receivables Facility.

Cash Flow

We generated $149.1 million in operating cash flow during 2017. Cash provided by operating activities included net income 
of $163.1 million, adjustments to net income totaling $28.5 million, which were offset by changes in assets and liabilities of $42.5 
million.  Investing  activities  included  capital  expenditures  of  $21.5  million.  Financing  activities  consisted  of  borrowings  and 
repayments of $834.4 million and $826.4 million, respectively, related to our Revolving Credit Facility, borrowings and repayments 
of both $670.2 million, related to our Receivables Facility, repayments of $60.0 million applied to our Term Loan Facility as well 
as borrowings and repayments on our various international lines of credit of $175.8 million and $164.0 million, respectively. 
Financing activities also included the repurchase of $106.8 million of the Company's common stock, of which $100 million was 
pursuant to the share repurchase plan announced on December 17, 2014.

Free cash flow for the years ended December 31, 2017 and 2016 was $127.6 million and $282.2 million, respectively.

The following table sets forth the components of free cash flow:

Twelve Months Ended
 December 31, 

2017

2016

Free Cash Flow:

(In millions)

Cash flow provided by operations

Less: Capital expenditures

Free cash flow

$

$

149.1

(21.5)

127.6

$

$

300.2
(18.0)
282.2

Note: The table above reconciles cash flow provided by operations to free cash flow. Free cash flow is a non-GAAP financial measure of 
liquidity. Capital expenditures are deducted from operating cash flow to determine free cash flow. Free cash flow is available to fund investing 
and financing activities.

17

Financing Availability

As of December 31, 2017, we had $562.9 million in total available borrowing capacity under our Revolving Credit Facility, 
which was comprised of $365.3 million of availability under the U.S. sub-facility and $197.6 million of availability under the 
Canadian sub-facility. Available borrowing capacity under our Receivables Facility was $170.0 million. The Receivables Facility 
and Revolving Credit Facility both mature in September 2020. 

Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial 
statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America 
(GAAP). The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts 
of assets, liabilities, revenues and expenses and related disclosure of contingent assets and liabilities. On an ongoing basis, we 
evaluate our estimates, including those related to supplier programs, bad debts, inventories, insurance costs, goodwill, income 
taxes, contingencies and litigation. We base our estimates on historical experience and on various other assumptions that are 
believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying 
values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates. If 
actual market conditions are less favorable than those projected by management, additional adjustments to reserve items may be 
required. We believe the following critical accounting policies affect our judgments and estimates used in the preparation of our 
consolidated financial statements.

Revenue Recognition

Revenues are recognized for product sales when title, ownership and risk of loss pass to the customer or for services when the 
service is rendered. In the case of stock sales and special orders, a sale occurs at the time of shipment from our distribution point, 
as the terms of our sales are typically FOB shipping point. In cases where we process customer orders that ship directly from 
suppliers, revenue is recognized once product is shipped and title has passed. In all cases, revenue is recognized once the sales 
price to our customer is fixed or is determinable and we have reasonable assurance as to the collectability. 

We provide integrated supply services to certain customers, which include some or all of the following: determine inventory 
stocking levels; establish inventory reorder points; launch purchase orders; receive material; pack away material; and, pick material 
for order fulfillment. We recognize revenue for these services in the period rendered based upon a previously negotiated fee 
arrangement. We also sell inventory to these customers and recognize revenue at the time title and risk of loss transfers to the 
customer.

Selling, General and Administrative Expenses

We include warehousing, purchasing, branch operations, information services, and marketing and selling expenses in this 

category, as well as other types of general and administrative costs.

Allowance for Doubtful Accounts

We maintain allowances for doubtful accounts for estimated losses resulting from the inability of our customers to make 
required  payments. We  have  a  systematic  procedure  using  estimates  based  on  historical  data  and  reasonable  assumptions  of 
collectability made at the local branch level and on a consolidated corporate basis to calculate the allowance for doubtful accounts. 

Excess and Obsolete Inventory                                                                                                                                                                                                                          

We write down our inventories to lower of cost and net realizable value based on internal factors derived from historical analysis 
of actual losses. On a retrospective basis, we identify items in excess of 36 months supply relative to demand or movement. We 
then analyze the ultimate disposition of identified excess inventories as they are sold, returned to supplier, or scrapped. This 
historical item-by-item analysis allows us to develop an estimate of the likelihood that an item identified as being in excess supply 
ultimately becomes obsolete. We apply the estimate to inventories currently in excess of 36 months supply, and reduce the carrying 
value of inventories by the derived amount. We revisit and test our assumptions on a periodic basis. Historically, we have not had 
material changes to our assumptions, nor do we anticipate any material changes in the future.  

18

Supplier Volume Rebates

We receive rebates from certain suppliers based on contractual arrangements with them. Since there is a lag between actual 
purchases and the rebates received from suppliers, we estimate and accrue the approximate amount of rebates available at a specific 
date. We record the amounts as other accounts receivable in the Consolidated Balance Sheets. The corresponding rebate income 
is derived from the level of actual purchases made by us and is recorded as a reduction of cost of goods sold. Supplier volume 
rebate rates have historically ranged between approximately 0.9% and 1.4% of sales depending on market conditions. In 2017, 
the rebate rate was 1.3%.

Goodwill and Indefinite-Lived Intangible Assets

Goodwill and indefinite-lived intangible assets are tested for impairment annually during the fourth quarter using information 
available at the end of September, or more frequently if triggering events occur, indicating that their carrying value may not be 
recoverable. We test for goodwill impairment on a reporting unit level and the evaluation involves comparing the fair value of 
each reporting unit with its carrying value. The fair values of the reporting units are determined using a combination of a discounted 
cash flow analysis and market multiples. Assumptions used for these fair value techniques are based on a combination of historical 
results, current forecasts, market data and recent economic events. We evaluate the recoverability of indefinite-lived intangible 
assets using the relief-from-royalty method based on projected financial information. At December 31, 2017 and 2016, respectively, 
goodwill and indefinite-lived trademarks totaled $1.87 billion and $1.83 billion.

We performed our annual impairment testing of goodwill and indefinite-lived intangible assets during the fourth quarter. A 
possible  indicator  of  goodwill  impairment  is  the  relationship  of  a  company’s  market  capitalization  to  its  book  value. As  of 
December 31, 2017, our market capitalization exceeded our book value and the fair values of our reporting units exceeded their 
carrying values.  Accordingly, there were no impairment losses identified as a result of our annual test.

The determination of fair value involves significant management judgment and we apply our best judgment when assessing 
the reasonableness of financial projections. Fair values are sensitive to changes in underlying assumptions and factors. As a result, 
there  can  be  no  assurance  that  the  estimates  and  assumptions  made  for  purposes  of  the  annual  goodwill  and  indefinite-lived 
intangible impairment tests will prove to be an accurate prediction of future results.

Intangible Assets

We account for certain economic benefits purchased as a result of our acquisitions, including customer relations, distribution 
agreements,  technology  and  trademarks,  as  intangible  assets.  Most  trademarks  have  an  indefinite  life. We  amortize  all  other 
intangible assets over a useful life determined by the expected cash flows produced by such intangibles and their respective tax 
benefits. Useful lives vary between 2 and 20 years, depending on the specific intangible asset.

Insurance Programs

We use commercial insurance for auto, workers’ compensation, casualty and health claims, and information technology as a 
risk sharing strategy to reduce our exposure to catastrophic losses. Our strategy involves large deductible policies where we must 
pay all costs up to the deductible amount. We estimate our reserve based on historical incident rates and costs.

Income Taxes

We account for income taxes under the asset and liability method, which requires the recognition of deferred income taxes for 
events that have future tax consequences. Under this method, deferred income taxes are recognized (using enacted tax laws and 
rates) based on the future income tax effects of differences in the carrying amounts of assets and liabilities for financial reporting 
and tax purposes. The effect of a tax rate change on deferred tax assets and liabilities is recognized in income in the period of 
change.

We recognize deferred tax assets at amounts that are expected to be realized. To make such determination, management evaluates 
all positive and negative evidence, including but not limited to, prior, current and future taxable income, tax planning strategies 
and future reversals of existing temporary differences. A valuation allowance is recognized if it is “more-likely-than-not” that 
some or all of a deferred tax asset will not be realized. We regularly assess the realizability of deferred tax assets.

We  account  for  uncertainty  in  income  taxes  using  a  "more-likely-than-not"  recognition  threshold.  Due  to  the  subjectivity 
inherent  in  the  evaluation  of  uncertain  tax  positions,  the  tax  benefit  ultimately  recognized  may  materially  differ  from  the 
estimate. We recognize interest and penalties related to uncertain tax benefits as part of interest expense and income tax expense, 
respectively.

The TCJA imposes a one-time tax on the deemed repatriation of undistributed foreign earnings. Notwithstanding the effects 
of  applying  such  provisions  of  the TCJA,  we  continue  to  assert  that  the  earnings  of  our  foreign  subsidiaries  are  indefinitely 
reinvested. However, as a result of the TCJA, the Company is reevaluating its intent and ability to repatriate foreign cash based 
upon the available liquidity and cash flow needs of its foreign subsidiaries and will disclose in future filings any change in its 
intention to repatriate undistributed foreign earnings and any resulting income tax impacts. Until the Company completes this 
19

reevaluation, it is not practicable to determine the amount of any unrecognized deferred income taxes on these undistributed foreign 
earnings.

The provisions of the TCJA also introduce U.S. taxation on certain global intangible low-taxed income ("GILTI"). We have 

elected to account for any GILTI tax that arises in future periods as a component of income tax expense.

Provisional amounts are recorded for certain income tax effects of the TCJA for which the accounting is incomplete, but a 
reasonable estimate can be determined. Provisional amounts, or adjustments to provisional amounts, identified during the period 
ending on or before one year from the TCJA's enactment date are recognized as an adjustment to income tax expense or benefit 
from continuing operations in the period the amounts are determined.

     Stock-Based Compensation

Our stock-based employee compensation plans are comprised of stock-settled stock appreciation rights, restricted stock units, 
and performance-based awards. Compensation cost for all stock-based awards is measured at fair value on the date of grant, and 
compensation cost is recognized, net of forfeitures, over the service period for awards expected to vest. The fair value of stock-
settled appreciation rights and performance-based awards with market conditions is determined using the Black-Scholes and Monte 
Carlo simulation models, respectively. The fair value of restricted stock units with service conditions and performance-based 
awards with performance conditions is determined by the grant-date closing price of our common stock. Expected volatilities are 
based on historical volatility of our common stock. We estimate the expected life of stock-settled stock appreciation rights using 
historical data pertaining to option exercises and employee terminations. The risk-free rate is based on the U.S. Treasury yields 
in effect at the time of grant. The forfeiture assumption is based on our historical employee behavior, which we review on an 
annual basis. No dividends are assumed for stock-based awards. For stock appreciation rights that are exercised and for restricted 
stock units and performance-based award that vest, shares are issued out of our outstanding common stock.

Results of Operations

The following table sets forth the percentage relationship to net sales of certain items in our Consolidated Statements of 

Income and Comprehensive Income (Loss) for the periods presented.

Net sales

Cost of goods sold

Selling, general and administrative expenses

Depreciation and amortization

Income from operations

Interest expense

Loss on debt redemption

Income before income taxes

Provision for income taxes

Year Ended December 31,
2016

2015

2017

100.0%

100.0%

100.0%

80.7

14.3

0.8

4.2

0.9

—

3.3

1.2

80.3

14.3

0.9

4.5

1.0

1.7

1.8

0.4

80.1

14.0

0.9

5.0

0.9

—

4.1

1.3

Net income attributable to WESCO International

2.1%

1.4%

2.8%

2017 Compared to 2016 

Net Sales. Net sales in 2017 increased 4.7% to $7.68 billion, compared with $7.34 billion in 2016. Foreign exchange rates and 
acquisitions positively impacted net sales by 0.4% and 0.2%, respectively, and were partially offset by a 0.4% impact from the 
number of workdays, resulting in organic sales growth of 4.5%.

The following table sets forth organic sales growth:

Organic Sales Growth:

    Change in net sales

    Less: Impact from acquisitions

    Less: Impact from foreign exchange rates

    Less: Impact from number of workdays

        Organic sales growth

20

Twelve Months Ended
December 31,

2017

2016

4.7 %

0.2 %

0.4 %

(0.4)%

4.5 %

(2.4)%

3.1 %

(1.0)%

0.4 %

(4.9)%

Note: Organic sales growth is a non-GAAP financial measure of sales performance. Organic sales growth is calculated by deducting the 
percentage impact from acquisitions in the first year of ownership, foreign exchange rates and number of workdays from the overall percentage 
change in consolidated net sales.

Cost of Goods Sold. Cost of goods sold increased 5.2% in 2017 to $6.19 billion, compared with $5.89 billion in 2016. Cost of 
goods sold as a percentage of net sales was 80.7% and 80.3% in 2017 and 2016, respectively. The increase in cost of goods sold 
as a percentage of net sales was primarily due to geographic mix and competition.

Selling, General and Administrative ("SG&A") Expenses. SG&A expenses include costs associated with personnel, shipping 
and handling, travel, advertising, facilities, utilities and bad debts. SG&A expenses increased by $50.5 million, or 4.8%, to $1.10 
billion in 2017. As a percentage of net sales, SG&A expenses were consistent at 14.3% in 2017 and 2016. SG&A expenses increased 
primarily as a result of higher variable compensation expense.

SG&A payroll expenses for 2017 of $774.4 million increased by $39.7 million compared to 2016. The increase in SG&A 
payroll expenses was primarily due to an increase in commissions, incentive compensation, healthcare benefits, and temporary 
labor costs.

The remaining SG&A expenses for 2017 of $325.3 million increased by $10.8 million compared to 2016. The increase in the 

remaining SG&A expenses was primarily due to an increase in operating costs required to support higher sales volumes. 

Depreciation and Amortization. Depreciation and amortization decreased $2.8 million to $64.0 million in 2017, compared with 

$66.9 million in 2016. 

Income from Operations. Income from operations decreased by $11.2 million to $320.9 million in 2017, compared to $332.1 
million in 2016. Income from operations as a percentage of net sales was 4.2% and 4.5% in 2017 and 2016, respectively. Income 
from operations as a percentage of net sales decreased primarily as a result of lower gross margin.

Net Interest Expense. Interest expense totaled $68.5 million in 2017, compared with $76.6 million in 2016, a decrease of 10.6%. 
The decrease was primarily due to a reduction in higher-priced debt. Non-cash interest expense, which includes the amortization 
of debt discounts and debt issuance costs, and interest related to uncertain tax positions, was $4.1 million and $7.8 million for 
2017 and 2016, respectively. 

The following table sets forth the components of interest expense: 

(In millions)

Amortization of debt discounts

Amortization of debt issuance costs

Interest related to uncertain tax positions, net

 Non-cash interest expense

Change in accrued interest

Cash interest expense

 Total interest expense

Twelve Months Ended
December 31,

2017

2016

$

$

$

0.3

3.7

0.1

4.1

0.6

63.8

68.5

$

3.1

3.6

1.2

7.9
(5.6)
74.3

76.6

Income Taxes. Our effective tax rate was 35.4% in 2017 compared to 23.1% in 2016. Our effective tax rate was impacted by 
the relative amounts of income earned in the U.S. and foreign jurisdictions, primarily Canada, the tax rates in these jurisdictions, 
and changes in foreign currency exchange rates. Additionally, as a result of the enactment of the TCJA, we recorded provisional 
discrete tax expense of $26.4 million, which increased the annual effective tax rate by 10.5%. Without the impact of the TCJA, 
our 2017 effective tax rate would have been 24.9%.

We are still analyzing the prospective impact of the TCJA on our effective tax rate. However, we expect our prospective effective 
tax rate to be primarily impacted by the reduction in the U.S. federal statutory income tax rate from 35% to 21% and the current 
year taxation of GILTI, which is likely to be partially offset by the deduction for foreign-derived intangible income. We currently 
do not expect a material impact from the TCJA's expansion on the limitation of deductions for excessive employee compensation.  
Additionally, we do not expect the TCJA to limit our ability to deduct interest expense for U.S. federal income tax purposes. 
However, the interest expense limitations of the TCJA could have an impact on our state effective income tax rate. Management 
is still evaluating the impact of the TCJA on the indefinite reinvestment of our foreign subsidiares' earnings and profits and our 
intercompany financing strategies.

21

Net Income. Net income increased by $62.0 million, or 61.3%, to $163.1 million in 2017, compared to $101.1 million in 2016. 
The increase in net income was primarily due to the loss on debt redemption recognized in 2016 as a result of the early redemption 
of the 2029 Debentures and an increase in net sales, partially offset by higher cost of sales, SG&A and income tax expenses.  
Adjusted net income for the year ended December 31, 2017 and December 31, 2016 was $189.6 million and $183.8 million, 
respectively.

Net  Income  Attributable  to  WESCO  International.  Net  income  and  earnings  per  diluted  share  attributable  to  WESCO 
International were $163.5 million and $3.38 per share, respectively, in 2017, compared with $101.6 million and $2.10 per share, 
respectively, in 2016. Adjusted net income and adjusted earnings per diluted share attributable to WESCO International were 
$189.9 million and $3.93 per share, and $184.3 million and $3.80 per share, for the years ended December 31, 2017 and December 
31, 2016, respectively.

Net Loss attributable to Noncontrolling Interest.  Net loss attributable to noncontrolling interest in 2017 and 2016 was $0.3 

million and $0.5 million, respectively. 

The following table sets forth the reconciliation of adjusted net income, adjusted income taxes, and adjusted earnings per 

diluted share:

Twelve Months Ended

December 31,

2017

2016

Adjusted Income Before Income Taxes:

Income before income taxes

     Loss on debt redemption

Adjusted income before income taxes

Adjusted Tax Provision:

Provision for income taxes
     Income tax expense for TCJA (1)
     Income tax benefit from loss on debt redemption (2)
Adjusted provision for income taxes

Adjusted Net Income Attributable to WESCO International:

Adjusted income before income taxes

Adjusted provision for income taxes

     Adjusted net income

$

$

$

$

$

Net loss attributable to noncontrolling interests

Adjusted net income attributable to WESCO International, Inc.

$

$

$

$

252.5

—

252.5

89.3
(26.4)
—

62.9

$

252.5

$

62.9

189.6
(0.3)
189.9

$

Adjusted Earnings per Diluted Share:

Twelve Months Ended
 December 31,

2017

2016

Earnings per diluted common share
Impact of TCJA (1)
Loss on debt redemption (3)
Tax effect of loss on debt redemption (3)
Adjusted earnings per diluted common share

$

$

$

3.38

0.55

—

—

3.93

$

131.5

123.9

255.4

30.4

—

41.2

71.6

255.4

71.6

183.8
(0.5)
184.3

2.10

—

2.54
(0.84)
3.80

(1)  The application of the TCJA resulted in a provisional discrete income tax expense of $26.4 million, which is comprised of $82.8 million of 
expense associated with the deemed repatriation of undistributed earnings of foreign subsidiares partially offset by a $56.4 million benefit 
from the remeasurement of U.S. deferred income tax balances.

(2)  Represents the third quarter of 2016 income tax benefit related to the loss on debt redemption.

(3)  The loss on debt redemption and related income tax benefit are based on the third quarter of 2016 diluted shares of 48.7 million.

22

Note: Adjusted net income attributable to WESCO International, Inc. for the year ended December 31, 2017, does not include provisional 
discrete income tax expense of $26.4 million associated with the application of the TCJA. For 2016, adjusted net income attributable to 
WESCO International, Inc. is defined as income before income taxes plus the 2016 third quarter loss on debt redemption, less the provision 
for income taxes excluding the third quarter benefit of such loss. 

For the year ended December 31, 2017, adjusted earnings per diluted share is computed by dividing adjusted net income by the weighted-
average common shares outstanding and common share equivalents. For the year ended 2016, adjusted earnings per diluted share is computed 
by adding the loss per diluted share on debt redemption and deducting the related income tax benefit per diluted share recognized in the third 
quarter of 2016 divided by the weighted-average common shares outstanding and common share equivalents.    

The  Company  believes  that  these  non-GAAP  financial  measures  provide  an  overall  understanding  of  the  Company's  current  financial 
performance and a consistent measure for assessing the current and historical financial results.

2016 Compared to 2015 

Net Sales. Net sales in 2016 decreased 2.4% to $7.34 billion, compared with $7.52 billion in 2015. Acquisitions and number 
of workdays positively impacted net sales by 3.1% and 0.4%, respectively, and were partially offset by a 1.0% decrease in foreign 
exchange rates, resulting in a 4.9% decrease in organic sales growth.

The following table sets forth organic sales growth:

Organic Sales Growth:
    Change in net sales

    Less: Impact from acquisitions

    Less: Impact from foreign exchange rates

    Less: Impact from number of workdays

        Organic sales growth

Twelve Months Ended
December 31,

2016

2015

(2.4)%

3.1 %

(1.0)%

0.4 %

(4.9)%

(4.7)%

2.0 %

(3.4)%

— %

(3.3)%

Note: Organic sales growth is a non-GAAP financial measure of sales performance. Organic sales growth is calculated by deducting the 
percentage impact from acquisitions in the first year of ownership, foreign exchange rates and number of workdays from the overall percentage 
change in consolidated net sales.

Cost of Goods Sold. Cost of goods sold decreased 2.3% in 2016 to $5.89 billion, compared with $6.02 billion in 2015. Cost 

of goods sold as a percentage of net sales was 80.3% and 80.1% in 2016 and 2015, respectively.

SG&A Expenses. SG&A expenses include costs associated with personnel, shipping and handling, travel, advertising, facilities, 
utilities and bad debts. SG&A expenses decreased by $5.7 million, or 0.5%, to $1.05 billion in 2016. SG&A expenses decreased 
as the cost impact of recent acquisitions was offset by savings from headcount reductions, branch closures and consolidations, 
and ongoing discretionary spending cost controls. As a percentage of net sales, SG&A expenses increased to 14.3% in 2016, 
compared to 14.0% in 2015, reflecting lower sales volume.

SG&A payroll expenses for 2016 of $734.8 million decreased by $1.1 million compared to 2015. The decrease in SG&A payroll 

expenses was primarily due to a decrease in commissions, incentives and benefits.

The remaining SG&A expenses for 2016 of $314.5 million decreased by $4.6 million compared to 2015. 

Depreciation and Amortization. Depreciation and amortization increased $1.9 million to $66.9 million in 2016, compared with 

$65.0 million in 2015.

Income from Operations.  Income from operations decreased by $41.7 million to $332.0 million in 2016, compared to $373.7 
million in 2015. Income from operations as a percentage of net sales was 4.5% and 5.0% in 2016 and 2015, respectively. Income 
from operations as a percentage of net sales decreased as the benefits resulting from cost management were offset by lower sales 
and gross margin.

Net Interest Expense. Interest expense totaled $76.6 million in 2016, compared with $69.8 million in 2015, an increase of 9.7%. 
Non-cash interest expense, which includes the amortization of debt discounts and debt issuance costs, and interest related to 
uncertain tax positions, was $7.9 million and $3.5 million for 2016 and 2015, respectively. In the fourth quarter of 2015, the 
resolution of transfer pricing matters associated with previously filed tax positions resulted in non-cash interest income of $9.4 
million.

23

The following table sets forth the components of interest expense: 

(In millions)

Amortization of debt discounts

Amortization of debt issuance costs

Interest related to uncertain tax positions, net

 Non-cash interest expense

Change in accrued interest

Cash interest expense

 Total interest expense

Twelve Months Ended
December 31,

2016

2015

$

$

3.1

3.6

1.2

7.9
(5.6)
74.3

$

76.6

$

6.1

6.1
(8.7)
3.5

—

66.3

69.8

Loss on Debt Redemption. Loss on debt redemption of $123.9 million was the result of a non-cash charge from the early 

redemption of the 2029 Debentures in the third quarter of 2016.

Income Taxes.  Our effective tax rate was 23.1% in 2016 compared to 31.4% in 2015. Our effective tax rate is affected by 
recurring items, such as the relative amounts of income earned in the United States and foreign jurisdictions, primarily Canada, 
the tax rates in these jurisdictions and changes in foreign currency exchange rates. The loss on debt redemption reduced income 
before income taxes, which decreased the effective tax rate for 2016. In 2015, the resolution of the transfer pricing matter described 
above resulted in incremental income tax expense, which increased the effective tax rate.

Net Income. Net income decreased by $107.3 million, or 51.5%, to $101.1 million in 2016, compared to $208.4 million in 

2015. Adjusted net income for the year ended December 31, 2016 was $183.8 million.

Net Loss Attributable to Noncontrolling Interests. Net loss attributable to noncontrolling interests was $0.5 million in 2016, 
compared to $2.3 million in 2015. The losses in 2016 and 2015 were primarily due to foreign exchange losses on cash balances.

Net  Income  Attributable  to  WESCO  International.  Net  income  and  diluted  earnings  per  share  attributable  to  WESCO 
International were $101.6 million and $2.10 per share, respectively, in 2016, compared with $210.7 million and $4.18 per share, 
respectively, in 2015. Adjusted net income and diluted earnings per share attributable to WESCO International were $184.3 million 
and $3.80 per share, respectively, for the year ended December 31, 2016.

24

Liquidity and Capital Resources

Total assets were $4.74 billion and $4.43 billion at December 31, 2017 and 2016, respectively. Total liabilities at December 31, 
2017 and 2016 were $2.62 billion and $2.47 billion, respectively. Stockholders’ equity increased by 7.8% to $2.12 billion at 
December 31, 2017, compared with $1.96 billion at December 31, 2016, primarily as a result of net income of $163.5 million and 
foreign currency translation adjustments of $85.8 million, which were partially offset by the repurchase of company stock of $100.0 
million, pursuant to the share repurchase plan announced on December 31, 2014.

The following table sets forth our outstanding indebtedness:

International lines of credit

Term Loan Facility, less debt discount of $0.5 and $0.8 in 2017 and 2016, respectively

Accounts Receivable Securitization Facility

Revolving Credit Facility

5.375% Senior Notes due 2021

5.375% Senior Notes due 2024
Capital leases

Total debt

Less unamortized debt issuance costs

Less short-term debt and current portion of long-term debt

Total long-term debt

As of December 31,

2017

2016

(In millions)

$

$

$

34.1

84.2

380.0

12.0

500.0

350.0
2.0

1,362.3
(13.7)
(35.3)
1,313.3

$

20.9

144.0

380.0

4.0

500.0

350.0
2.9

1,401.8
(16.5)
(22.1)
1,363.2

The required annual principal repayments for all indebtedness for the next five years and thereafter, as of December 31, 

2017, is set forth in the following table:

(In millions)

2018

2019

2020

2021

2022

Thereafter

Total payments on debt

Debt discount
Total debt

$

$

35.3

85.3

392.2

500.0

—

350.0

1,362.8
(0.5)
1,362.3      

Our liquidity needs generally arise from fluctuations in our working capital requirements, capital expenditures, acquisitions 
and debt service obligations. As of December 31, 2017, we had $562.9 million in available borrowing capacity under our Revolving 
Credit Facility and $170.0 million in available borrowing capacity under our Receivables Facility, which combined with available 
cash of $60.9 million, provided liquidity of $793.8 million. Cash included in our determination of liquidity represents cash in 
deposit and interest bearing investment accounts. We believe cash provided by operations and financing activities will be adequate 
to cover our current operational and business needs.

We monitor the depository institutions that hold our cash and cash equivalents on a regular basis, and we believe that we have 
placed our deposits with creditworthy financial institutions. We also communicate on a regular basis with our lenders regarding 
our financial and working capital performance, liquidity position and financial leverage. Our financial leverage ratio was 3.5 as 
of December 31, 2017 and 2016. In addition, we are in compliance with all covenants and restrictions contained in our debt 
agreements as of December 31, 2017.  

25

 
The following table sets forth the Company's financial leverage ratio as of December 31, 2017 and 2016:

(In millions, except ratios)

Net income

Provision for income taxes

Loss on debt redemption

Interest expense, net

Depreciation and amortization

Adjusted EBITDA

Short-term borrowings and current debt

Long-term debt
Debt discount and debt issuance costs (1)
Total debt

Financial leverage ratio based on total debt

Twelve months ended December 31,

2017

2016

163.1

$

89.3

—

68.5

64.0

384.9

$

101.1

30.4

123.9

76.6

66.9

398.9

December 31, 2017

December 31, 2016

35.3

$

1,313.3

14.2

1,362.8

$

3.5

22.1

1,363.1

17.3

1,402.5

3.5

$

$

$

$

(1)  Long-term debt is presented in the Consolidated Balance Sheets net of debt discount and debt issuance costs.

Note: Financial leverage is a non-GAAP financial measure of debt usage. Financial leverage ratio is calculated by dividing total debt, including 
debt discount and debt issuance costs, by adjusted EBITDA. Adjusted EBITDA is defined as the trailing twelve months earnings before 
interest, taxes, depreciation and amortization, plus loss on debt redemption for 2016.

At December 31, 2017, we had cash and cash equivalents totaling $118.0 million, of which $78.5 million was held by foreign 
subsidiaries. The cash held by our foreign subsidiaries could be subject to additional income taxes if repatriated. We continue to 
believe that we are able to maintain a sufficient level of liquidity for our domestic operations and commitments without repatriation 
of the cash held by these foreign subsidiaries. However, as a result of the tax on the deemed repatriation of our undistributed foreign 
earnings and profits under the TCJA, we are reevaluating our intent and ability to repatriate foreign cash and will disclose in future 
filings any change in our intention and the resulting income tax impacts.

Over the next several quarters, we plan to closely manage working capital, and it is expected that excess cash will be directed 
primarily toward growth initiatives, acquisitions, debt reduction, and share repurchases. We remain focused on maintaining ample 
liquidity and credit availability. We anticipate capital expenditures in 2018 to be higher compared to 2017 as we continue to invest 
in our business. We believe our balance sheet and ability to generate ample cash flow provides us with a durable business model 
and should allow us to fund expansion needs and growth initiatives.

We finance our operating and investing needs as follows:

International Lines of Credit

Certain foreign subsidiaries of WESCO have entered into uncommitted lines of credit, which serve as overdraft facilities, to 
support local operations. The maximum borrowing limit varies by facility and ranges between $0.3 million and $21.0 million. The 
applicable interest rate for borrowings under these lines of credit varies by country and is governed by the applicable loan agreement. 
The international lines of credit are renewable on an annual basis and certain facilities are fully and unconditionally guaranteed 
by WESCO Distribution. Accordingly, borrowings under these lines directly reduce availability under the Revolving Credit Facility. 
The average interest rate for these facilities was 5.42% and 7.36% at December 31, 2017 and 2016, respectively.

Term Loan Facility

On December 12, 2012, WESCO Distribution, as U.S. borrower, WDCC Enterprises Inc. ("WDCC" and together with WESCO 
Distribution, the “Borrowers”), as Canadian borrower, and WESCO International entered into a Term Loan Agreement (the “Term 
Loan Agreement”) among WESCO Distribution, WDCC, the Company, the lenders party thereto and Credit Suisse AG Cayman 
Islands Branch, as administrative agent and as collateral agent. 

26

The Term Loan Agreement provided a seven-year term loan facility (the “Term Loan Facility”), which consisted of two separate 
sub-facilities: (i) a Canadian sub-facility in an aggregate principal amount of CAD150 million, issued at a 2.0% discount, and (ii) 
a U.S. sub-facility in an aggregate principal amount of $700 million, issued at a 1.0% discount. The proceeds of the Term Loan 
Facility were used to finance the acquisition of EECOL, and to pay fees and expenses incurred in connection with the acquisition 
and certain other transactions. Subject to the terms of the Term Loan Agreement, the Borrowers may request incremental term 
loans from time to time in an aggregate principal amount not to exceed at any time $300 million, with an equivalent principal 
amount in U.S. dollars being calculated for any incremental term loan denominated in Canadian dollars.  

On November 19, 2013, the Borrowers and WESCO International entered into an amendment (the “Term Loan Amendment”) 
to the Term Loan Agreement. The Term Loan Amendment, among other things, reduced the applicable margin on U.S. term loans 
by 0.50% and the LIBOR floor applicable to the U.S. sub-facility from 1.00% to 0.75%. The modified pricing terms were effective 
December 13, 2013. 

On November 26, 2013, WESCO Distribution sold $500 million aggregate principal amount of 5.375% Senior Notes due 2021 
(the “2021 Notes”), and used the net proceeds plus excess cash to prepay $500 million under the Company's U.S. sub-facility of 
the Term Loan Facility (see discussion below under “5.375% Senior Notes due 2021” for additional information). The prepayment 
satisfied  all  remaining  quarterly  repayment  obligations  under  the  U.S.  sub-facility. As  of  December 31,  2017,  the  amount 
outstanding under the U.S. sub-facility was $84.8 million. The Canadian sub-facility was fully repaid in 2015 using cash provided 
by Canadian operations.

Borrowings under the Term Loan Facility bear interest at base rates plus applicable margins. At December 31, 2017, the interest 
rate on borrowings under the U.S. sub-facility was 4.7%. To the extent not previously paid, the outstanding U.S. sub-facility will 
become  due  and  payable  on  December  12,  2019,  with  any  unpaid  incremental  term  loans  becoming  due  and  payable  on  the 
respective maturity dates applicable to those incremental term loans. At any time or from time to time, the Borrowers may prepay 
borrowings under the Term Loan Facility in whole or in part without premium or penalty. The Borrowers' obligations under the 
Term Loan Facility are secured by substantially all of the assets of the Borrowers, the Company and certain of the Company's 
other subsidiaries; provided that, with respect to borrowings under the U.S. sub-facility, the collateral does not include assets of 
certain foreign subsidiaries or more than 65% of the issued and outstanding equity interests in certain foreign subsidiaries. 

The Term Loan Facility contains customary affirmative and negative covenants for credit facilities of this type. The Term Loan 

Facility also provides for customary events of default.

Accounts Receivable Securitization Facility

On November 8, 2017, WESCO Distribution amended its accounts receivable securitization facility (the "Receivables Facility") 
pursuant to the terms and conditions of a Fifth Amendment to Fourth Amended and Restated Receivables Purchase Agreement, 
by and among WESCO Receivables Corp. (“WESCO Receivables”), WESCO Distribution, the various purchasers from time to 
time party thereto and PNC Bank, National Association, as Administrator (the "Amendment"). The Amendment extended the term 
of the Receivables Facility to September 24, 2020 and added and amended certain other defined terms. Substantially all other 
terms and conditions of the Receivables Facility remain unchanged.

The Receivables Facility has a purchase limit of $550 million with the opportunity to exercise an accordion feature that permits 
increases in the purchase limit of up to $100 million. The interest rate spread and commitment fee of the Receivables Facility is 
0.95% and 0.45%, respectively.

Under the Receivables Facility, WESCO sells, on a continuous basis, an undivided interest in all domestic accounts receivable 
to WESCO Receivables, a wholly owned special purpose entity (the “SPE”). The SPE sells, without recourse, a senior undivided 
interest in the receivables to financial institutions for cash while maintaining a subordinated undivided interest in the receivables, 
in the form of overcollateralization. WESCO has agreed to continue servicing the sold receivables for the third-party conduits and 
financial institutions at market rates; accordingly, no servicing asset or liability has been recorded.

As of December 31, 2017 and 2016, accounts receivable eligible for securitization totaled $751.2 million and $657.5 
million, respectively. The Consolidated Balance Sheets as of December 31, 2017 and 2016 include $380.0 million, for both 
periods ended, account receivable balances legally sold to third parties, as well as borrowings for equal amounts. At 
December 31, 2017, the interest rate for this facility was approximately 1.9%.

Revolving Credit Facility

On September 24, 2015, WESCO International, WESCO Distribution and certain other subsidiaries of the Company entered 
into a $600 million revolving credit facility (the “Revolving Credit Facility”), which contains a letter of credit sub-facility of up 
to  $125  million,  pursuant  to  the  terms  and  conditions  of  a  Second Amended  and  Restated  Credit Agreement  (the  "Credit 
Agreement"). The Revolving Credit Facility contains an accordion feature allowing WESCO Distribution to request increases to 
the borrowing commitments of up to $200 million in the aggregate, subject to customary conditions.

27

The Revolving Credit Facility matures in September 2020 and consists of two separate sub-facilities: (i) a Canadian sub-facility 
with a borrowing limit of up to $400 million, which is collateralized by substantially all assets of WESCO Canada and the other 
Canadian Borrowers, other than, among other things, real property, in each case, subject to customary exceptions and limitations, 
and (ii) a U.S sub-facility with a borrowing limit of up to $600 million less the amount of outstanding borrowings under the 
Canadian sub-facility. The U.S. sub-facility is collateralized by substantially all assets of WESCO Distribution and its subsidiaries 
which are party to the Credit Agreement, other than, among other things, real property and accounts receivable sold or intended 
to be sold pursuant to the Receivables Purchase Agreement. The applicable interest rate for borrowings under the Revolving Credit 
Facility includes interest rate spreads based on available borrowing capacity that range between 1.25% and 1.75% for LIBOR-
based borrowings and 0.25% and 0.75% for prime rate-based borrowings. At December 31, 2017, the interest rate for this facility 
was approximately 3.0%. 

The Credit Agreement requires ongoing compliance with certain customary affirmative and negative covenants. The Credit 

Agreement also contains customary events of default. 

During 2017, WESCO borrowed $834.4 million under the Revolving Credit Facility and made repayments in the aggregate 
amount  of  $826.4  million.  During  2016,  aggregate  borrowings  and  repayments  were  $1,025.8  million  and  $1,096.8  million, 
respectively. WESCO had $562.9 million available under the Revolving Credit facility at December 31, 2017, after giving effect 
to $18.0 million of outstanding letters of credit, $19.5 million of surety bonds, and $7.1 million of other reserves, as compared to 
$509.7 million available under the Revolving Credit facility at December 31, 2016, after giving effect to $20.1 million of outstanding 
letters of credit, $16.2 million of surety bonds, and $6.4 million of other reserves.

5.375% Senior Notes due 2021

In November 2013, WESCO Distribution issued $500 million aggregate principal amount of 2021 Notes through a private 
offering exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”). The 2021 
Notes were issued at 100% of par and are governed by an indenture (the “2021 Indenture”) entered into on November 26, 2013 
between WESCO International and U.S. Bank National Association, as trustee. The 2021 Notes are unsecured senior obligations 
of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. The 2021 Notes bear interest 
at a stated rate of 5.375%, payable semi-annually in arrears on June 15 and December 15 of each year. In addition, we incurred 
costs related to the issuance of the 2021 Notes totaling $8.4 million, which are recorded as a reduction to the carrying value of the 
debt and are being amortized over the life of the notes. The 2021 Notes mature on December 15, 2021. The net proceeds of the 
2021 Notes were used to prepay a portion of the U.S. sub-facility of the term loans due 2019. 

Under the terms of a registration rights agreement dated as of November 26, 2013 among WESCO Distribution, WESCO 
International and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as the representative of the initial purchasers of the 2021 
Notes, WESCO Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in 
all material respects to the 2021 Notes (the “2021 Exchange Notes”) and to make an offer to exchange the 2021 Exchange Notes 
for the 2021 Notes. WESCO Distribution launched the exchange offer on June 12, 2014 and the exchange offer expired on July 
17, 2014.   

At any time WESCO Distribution may redeem all or a part of the 2021 Notes. Between December 15, 2017 and December 14, 
2018, WESCO Distribution may redeem all or a part of the 2021 Notes at a redemption price equal to 102.688% of the principal 
amount. Between December 15, 2018 and December 14, 2019, WESCO Distribution may redeem all or a part of the 2021 Notes 
at a redemption price equal to 101.344% of the principal amount. On and after December 15, 2019, WESCO Distribution may 
redeem all or a part of the 2021 Notes at a redemption price equal to 100% of the principal amount.

The 2021 Indenture contains customary covenants and customary events of default. In addition, upon a change of control, the 
holders of 2021 Notes have the right to require WESCO Distribution to repurchase all or any part of the 2021 Notes at a redemption 
price equal to 101% of the principal amount, plus accrued and unpaid interest.  

5.375% Senior Notes due 2024 

In June 2016, WESCO Distribution issued $350 million aggregate principal amount of 5.375% Senior Notes due 2024 (the 
"2024 Notes") through a private offering exempt from the registration requirements of the Securities Act. The 2024 Notes were 
issued at 100% of par and are governed by an indenture (the “2024 Indenture”) entered into on June 15, 2016 among WESCO 
Distribution, as issuer, WESCO International, as parent guarantor, and U.S. Bank National Association, as trustee. The 2024 Notes 
are unsecured senior obligations of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. 
The 2024 Notes bear interest at a rate of 5.375% per annum, payable semi-annually in arrears on June 15 and December 15 of 
each year, commencing on December 15, 2016. We incurred costs totaling $6.0 million to issue the 2024 Notes, which are recorded 
as a reduction to the carrying value of the debt and are being amortized over the life of the note. The notes mature on June 15, 
2024. The Company used the net proceeds to redeem its 2029 Debentures on September 15, 2016.

28

Under the terms of a registration rights agreement dated as of June 15, 2016 among WESCO Distribution, as the issuer, WESCO 
International, as parent guarantor, and Goldman, Sachs & Co., as representative of the initial purchasers of the 2024 Notes, WESCO 
Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in all material 
respects to the 2024 Notes (the “2024 Exchange Notes”) and to make an offer to exchange the 2024 Exchange Notes for the 2024 
Notes. WESCO Distribution launched the exchange offer on December 28, 2016 and the exchange offer expired on January 31, 
2017. 

At any time on or after June 15, 2019, WESCO Distribution may redeem all or a part of the 2024 Notes. Between June 15, 
2019 and June 14, 2020, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 104.031% 
of the principal amount. Between June 15, 2020 and June 14, 2021, WESCO Distribution may redeem all or a part of the 2024 
Notes at a redemption price equal to 102.688% of the principal amount. Between June 15, 2021 and June 14, 2022, WESCO 
Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 101.344% of the principal amount. On and 
after June 15, 2022, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 100% of the 
principal amount.    

The 2024 Indenture contains customary covenants and events of default. Upon a change of control, the holders of the 2024 
Notes have the right to require WESCO Distribution to repurchase all or any part of the 2024 Notes at a redemption price equal 
to 101% of the principal amount thereof, plus accrued and unpaid interest.

6.0% Convertible Senior Debentures due 2029

On August 27, 2009, WESCO International completed an exchange offer pursuant to which it issued $345 million in aggregate 
principal amount of the 2029 Debentures. On September 15, 2016, the Company redeemed the 2029 Debentures. Holders of the 
2029 Debentures received cash totaling $344.8 million, which was equal to the principal amount of the then-outstanding debentures, 
in addition to accrued and unpaid interest. Holders who surrendered the 2029 Debentures for conversion received 18 shares of 
WESCO stock for each $1,000 principal amount of 2029 Debentures converted. In total, 6,267,688 shares were issued on the 
redemption date. The redemption resulted in a non-cash loss of $123.9 million, which included the write off of unamortized debt 
issuance costs.

WESCO separately accounted for the liability and equity components of its 2029 Debentures in a manner that reflected its non-
convertible debt borrowing rate. WESCO utilized an interest rate of 13.875% to reflect the non-convertible debt borrowing rate 
of its offering upon issuance, which was determined based on discussions with its financial institutions and a review of relevant 
market data, and resulted in a $181.2 million discount to the 2029 Debenture balance and a net increase in additional capital of 
$106.5 million. In addition, the financing costs incurred to issue the 2029 Debentures were allocated between the instrument's debt 
and equity components. WESCO amortized the debt discount and financing costs over the life of the instrument. For the years 
ended December 31, 2016 and 2015, non-cash interest expense for the amortization of the debt discount and debt issuance costs 
was $3.1 million and $4.2 million, respectively.

Covenant Compliance

We were in compliance with all relevant covenants contained in our debt agreements as of December 31, 2017.

Cash Flow

An analysis of cash flows for 2017 and 2016 follows:

Operating Activities. Cash provided by operating activities for 2017 totaled $149.1 million, compared with $300.3 million of 
cash generated in 2016. Cash provided by operating activities included net income of $163.1 million and adjustments to net income 
totaling $28.5 million. Sources of cash in 2017 were generated from an increase in accounts payable of $102.9 million, as a result 
of the increase in sales, an increase in noncurrent liabilities of $64.8 million, due to an accrued tax liability related to the taxation 
of undistributed earnings of foreign subsidiares under the TCJA, an increase in accrued payroll and benefit costs of $24.7 million
related to incentive compensation and a decrease in prepaid expenses and other current assets of $11.3 million, as a result of 
changes in other income taxes. Primary uses of cash in 2017 included a $119.0 million and a $113.0 million increase in inventory 
and trade receivables, respectively, as a result of an increase in customer backlog as well as an increase in sales, and a $14.2 million
increase in other accounts receivable, primarily related to the increase in supplier volume rebate accruals.

Cash provided by operating activities for 2016 totaled $300.2 million, compared with $283.1 million of cash generated in 2015. 
Cash provided by operating activities included net income of $101.1 million and adjustments to net income totaling $159.3 million, 
which included a loss on the redemption of our convertible debt of $123.9 million. Sources of cash in 2016 were generated from 
a decrease in trade receivables of $56.8 million, an increase in other current and noncurrent liabilities of $15.7 million, and a 
decrease in prepaid expenses and other noncurrent assets of $13.2 million. Primary uses of cash in 2016 included a $40.6 million 
decrease in accounts payable, a $1.9 million decrease in accrued payroll and benefit costs, and decreases in other accounts receivable 
and inventories of $1.6 million. In 2015, primary sources of cash were net income of $208.4 million and adjustments to net income 

29

totaling $121.2 million. Other sources of cash in 2015 were generated from decreases in other accounts receivable of $57.2 million, 
trade receivables of $40.1 million and inventories of $2.4 million. Primary uses of cash in 2015 included a $66.8 million decrease 
in other current and noncurrent liabilities, a $55.9 million decrease in accounts payable, a $15.0 million decrease in accrued payroll 
and benefit costs, and an $8.5 million increase in prepaid expenses and other noncurrent assets. 

Investing Activities. Net cash used in investing activities in 2017 was $5.3 million, compared with $70.5 million of net cash 
used in 2016, which included a payment of $50.9 million primarily related to the acquisition of Atlanta Electrical Distributors, 
LLC. Capital expenditures were $21.5 million and $18.0 million in 2017 and 2016, respectively. Proceeds from the sale of assets 
were $6.8 million and $8.4 million in 2017 and 2016, respectively. Other investing activities in 2017 included $9.4 million of cash 
inflows from the maturity of a foreign investment. 

Net cash used in investing activities in 2016 was $70.5 million, compared with $170.2 million of net cash used in 2015. Capital 
expenditures were $18.0 million and $21.7 million in 2016 and 2015, respectively. Proceeds from the sale of assets were $8.4 
million and $3.0 million in 2016 and 2015, respectively. During 2016, the Company had $50.9 million of acquisition payments, 
primarily related to Atlanta Electrical Distributors, LLC, compared to $151.6 million in 2015, primarily to acquire Hill Country 
Electric Supply, LP and Needham Electric Supply Corporation. Other investing activities in 2016 were $10.0 million. 

Financing Activities. Net cash used in financing activities in 2017 was $141.2 million, compared with $276.3 million in 2016. 
During 2017, financing activities consisted of borrowings and repayments of $834.4 million and $826.4 million, respectively, 
related  to  our  Revolving  Credit  Facility,  borrowings  and  repayments  of  $670.2  million,  related  to  our  Receivables  Facility, 
repayments of $60.0 million related to our Term Loan Facility, as well as borrowings and repayments of $175.8 million and $164.0 
million, respectively, related to our international lines of credit. Financing activities in 2017 also included the repurchase of $106.8 
million of the Company's common stock, of which $100.0 million was pursuant to the share repurchase plan announced on December 
17, 2014.

Net cash used in financing activities in 2016 was $276.3 million, compared with $67.8 million in 2015. During 2016, financing 
activities consisted of borrowings and repayments of $1.03 billion and $1.10 billion, respectively, related to our Revolving Credit 
Facility, borrowings and repayments of $706.9 million and $851.9 million, respectively, related to our Receivables Facility, proceeds 
from the issuance of the 2024 Notes of $350.0 million, a payment of $344.8 million to redeem the 2029 Debentures and repayments 
of $30.0 million applied to our Term Loan Facility. Financing activities in 2016 also included borrowings and repayments on our 
various international lines of credit of $111.5 million and $131.5 million, respectively.

Contractual Cash Obligations and Other Commercial Commitments

The following summarizes our contractual obligations, including interest, at December 31, 2017 and the effect such 

obligations are expected to have on liquidity and cash flow in future periods.

2018

2019 to 2020

2021 to 2022

2023 - After

Total

(In millions)
Contractual cash obligations (including interest):

Debt, excluding debt discount and debt issuance

costs

Interest on indebtedness (1)
Non-cancelable operating leases

  Taxes due on deemed repatriation of foreign 

earnings (2)

Total contractual cash obligations

$

$

35.3
58.8

65.5

4.2
163.8

$

$

477.5
108.3

99.4

12.2
697.4

$

$

500.0
63.4

57.4

9.7
630.5

$

$

350.0
28.3

49.2

38.9
466.4

$

$

1,362.8
258.8

271.5

65.0
1,958.1

(1)  Interest on the variable rate debt was calculated using the rates and balances outstanding at December 31, 2017.

(2)    Included in the table above is a provisional estimate of the U.S. federal and state income taxes due under the deemed repatriation provisions 
of the TCJA, net of available foreign tax credits, that will be paid over 8 years.  Absent guidance from the states on whether or not they will 
conform to the TCJA's repatriation provisions, management has assumed that the provisional state tax liability will be payable when the 
relevant 2017 and 2018 tax returns are filed.

Purchase orders for inventory requirements and service contracts are not included in the table above. Generally, our purchase 
orders and contracts contain clauses allowing for cancellation. We do not have significant agreements to purchase material or 
goods that would specify minimum order quantities. Also, we do not consider liabilities for uncertain tax benefits to be contractual 
obligations requiring disclosure due to the uncertainty surrounding the ultimate settlement and timing of these liabilities. As such, 
we have not included liabilities for uncertain tax benefits of $4.8 million in the table above.

30

 
 
 
 
 
 
 
 
 
Inflation

The rate of inflation, as measured by changes in the producer price index, affects different commodities, the cost of products 
purchased and ultimately the pricing of our different products and product classes to our customers. Our pricing related to inflation 
did not have a measurable impact on our sales revenue for the year. Historically, price changes from suppliers have been consistent 
with inflation and have not had a material impact on the results of our operations.

Seasonality

Sales during the first quarter are affected by a reduced level of activity. Sales during the second, third and fourth quarters are 
generally 6 - 8% higher than the first quarter. Sales typically increase beginning in March, with slight fluctuations per month 
through October. During periods of economic expansion or contraction, our sales by quarter have varied significantly from this 
pattern.

Impact of Recently Issued Accounting Standards

See  Note  2  of  the  Notes  to  Consolidated  Financial  Statements  for  information  regarding  the  effect  of  new  accounting 

pronouncements.

Item 7A. Quantitative and Qualitative Disclosures about Market Risks.

Foreign Currency Risks

Approximately 25% of our sales in 2017 were made by our foreign subsidiaries located in North America, South America, 
Europe, Africa, and Asia and are denominated in foreign currencies. We may establish additional foreign subsidiaries in the future. 
Accordingly,  we  may  derive  a  larger  portion  of  our  sales  from  international  operations,  and  a  portion  of  these  sales  may  be 
denominated in foreign currencies. As a result, our future operating results could become subject to fluctuations in foreign exchange 
rates relative to the U.S. dollar. Furthermore, to the extent that we engage in international sales denominated in U.S. dollars, an 
increase in the value of the U.S. dollar relative to foreign currencies could make our products less competitive in international 
markets. We have monitored and will continue to monitor our exposure to currency fluctuations.

Interest Rate Risk

Fixed Rate Borrowings: Approximately 63% of our debt portfolio is comprised of fixed rate debt. At various times, we have 
refinanced our debt to mitigate the impact of interest rate fluctuations. As the 2021 Notes and 2024 Notes were issued at fixed 
rates, interest expense would not be impacted by interest rate fluctuations, although market value would be. For the 2021 Notes 
and 2024 Notes, fair value approximated carrying value (see Note 7 to the Consolidated Financial Statements).

Floating Rate Borrowings: The Company's variable rate borrowings at December 31, 2017 were comprised of the amounts 
outstanding under the Term Loan Facility, Receivables Facility, Revolving Credit Facility, and the international lines of credit. 
The fair value of these debt instruments at December 31, 2017 approximated carrying value. We entered into the Term Loan 
Facility on December 12, 2012 and the proceeds were primarily used to finance the acquisition of EECOL. Borrowings under the 
U.S. sub-facility of the Term Loan Facility bear interest at 0.75% or, if greater, the applicable LIBOR (London Interbank Offered 
Rate) or base rates plus applicable margins and therefore are subject to fluctuations in interest rates. We borrow under our Revolving 
Credit  Facility  and  Receivables  Facility  for  general  corporate  purposes,  including  working  capital  requirements  and  capital 
expenditures. Borrowings under our Revolving Credit Facility bear interest at the applicable LIBOR / CDOR (Canadian Dealer 
Offered Rate) or base rates plus applicable margins, whereas borrowings under the Receivables Facility bear interest at the 30 day 
LIBOR plus applicable margins. A 100 basis point increase or decrease in interest rates would not have a significant impact on 
future earnings under our current capital structure.

Defined Benefit Pension Plan: The interest rate used to discount future estimated cash flows is determined using the Canadian 
Institute of Actuaries ("CIA") methodology, which references yield curve information provided by Fiera Capital. The discount 
rate used to determine the projected benefit obligations for the Canadian pensions was 3.5% at December 31, 2017. An increase 
in the discount rate of one percent would decrease the projected benefit obligations by $22.0 million, and a decrease in the discount 
rate of one percent would increase the projected benefit obligations by $29.7 million. The impact of a change in the discount rate 
of one percent would be either a charge of $2.0 million or a credit of $1.4 million to earnings in the following year.

31

Item 8. Financial Statements and Supplementary Data.

The information required by this item is set forth in our Consolidated Financial Statements contained in this Annual Report 

on Form 10-K. Specific financial statements can be found at the pages listed below:

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets as of December 31, 2017 and 2016

Consolidated Statements of Income and Comprehensive Income (Loss) for the years ended

December 31, 2017, 2016 and 2015

Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2017, 2016 and 2015

Consolidated Statements of Cash Flows for the years ended December 31, 2017, 2016 and 2015

Notes to Consolidated Financial Statements

PAGE

33

35

36

37

38

39

32

 
Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Stockholders of WESCO International, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of WESCO International, Inc. and its subsidiaries as of December 
31, 2017 and 2016, and the related consolidated statements of income and comprehensive income (loss), of stockholders’ equity 
and of cash flows for each of the three years in the period ended December 31, 2017, including the related notes and schedule of 
valuation and qualifying accounts for each of the three years in the period ended December 31, 2017 listed in the index appearing 
under Item 15(a)(2) (collectively referred to as the “consolidated financial statements”).  We also have audited the Company's 
internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated 
Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position 
of the Company as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years 
in the period ended December 31, 2017 in conformity with accounting principles generally accepted in the United States of America.  
Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of 
December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control 
over  financial  reporting,  and  for  its  assessment  of  the  effectiveness  of  internal  control  over  financial  reporting,  included  in 
Management’s Report on Internal Control over Financial Reporting appearing under Item 9A.  Our responsibility is to express 
opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based 
on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) 
("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws 
and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the 
audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether 
due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.  

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement 
of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks.  
Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial 
statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, 
as well as evaluating the overall presentation of the consolidated financial statements.  Our audit of internal control over financial 
reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness 
exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits 
also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits 
provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability 
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted 
accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (i) pertain 
to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets 
of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial 
statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are 
being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that 
could have a material effect on the financial statements.

33

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.   Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because 
of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP
Pittsburgh, Pennsylvania
February 21, 2018 

We have served as the Company’s auditor since 1994.

34

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

Current assets:

Assets

Cash and cash equivalents
Trade accounts receivable, net of allowance for doubtful accounts of $21,313 and $22,007

$

117,953

$

110,131

As of December 31,

2017

2016

(In thousands,
except share data)

in 2017 and 2016, respectively

Other accounts receivable
Inventories
Income taxes receivable (Note 2)
Prepaid expenses and other current assets (Note 2)

Total current assets

Property, buildings and equipment, net (Note 6)
Intangible assets, net (Note 3)
Goodwill (Notes 2 and 3)
Deferred income taxes (Note 9)
Other assets

    Total assets

Liabilities and Stockholders’ Equity

Current liabilities:
Accounts payable
Accrued payroll and benefit costs (Note 11)
Short-term debt (Note 7)
Current portion of long-term debt (Note 7)
Bank overdrafts
Income taxes payable (Note 2)
Other current liabilities

Total current liabilities

Long-term debt, net of debt discount and debt issuance costs of $14,224 and $17,278

in 2017 and 2016, respectively (Note 7)

Deferred income taxes (Notes 2 and 9)
Other noncurrent liabilities
    Total liabilities

Commitments and contingencies (Note 13)
Stockholders’ Equity:

Preferred stock, $.01 par value; 20,000,000 shares authorized, no shares issued or
outstanding (Note 8)
Common stock, $.01 par value; 210,000,000 shares authorized, 59,045,762 and 58,817,781
shares issued and 47,009,540 and 48,611,497 shares outstanding in 2017 and 2016,
respectively (Note 8)
Class B nonvoting convertible common stock, $.01 par value; 20,000,000 shares authorized,
4,339,431 issued and no shares outstanding in 2017 and 2016, respectively
Additional capital
Retained earnings (Note 2)
Treasury stock, at cost; 16,375,653 and 14,545,715 shares in 2017 and 2016, respectively
Accumulated other comprehensive loss (Note 2)

Total WESCO International, Inc. stockholders' equity
Noncontrolling interests
    Total stockholders’ equity
    Total liabilities and stockholders’ equity

1,170,080
101,229
956,148
23,250
40,189
2,408,849
156,445
367,104
1,771,877
24,203
6,990
4,735,468

799,520
72,686
34,075
1,224
37,644
9,712
86,108
1,040,969

1,313,261
136,858
128,237
2,619,325

1,034,402
85,019
821,441
5,725
46,360
2,103,078
157,607
393,362
1,730,950
15,803
31,041
4,431,841

684,721
49,250
20,920
1,218
29,384
9,881
78,425
873,799

$

$

1,363,135
168,245
63,031
2,468,210

$

—

591

—

588

43
999,156
2,079,697
(647,158)
(312,590)
2,119,739
(3,596)
2,116,143
4,735,468

$

43
986,020
1,914,757
(542,537)
(391,971)
1,966,900
(3,269)
1,963,631
4,431,841

$

$

$

$

The accompanying notes are an integral part of the consolidated financial statements.

35

 
 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (LOSS)

Net sales

Cost of goods sold (excluding depreciation and amortization)

Selling, general and administrative expenses

Depreciation and amortization

Income from operations

Interest expense, net

Loss on debt redemption (Note 7)

Income before income taxes

Provision for income taxes (Note 9)

Net income

Less: Net loss attributable to noncontrolling interests
  Net income attributable to WESCO International, Inc.

$

Other comprehensive income (loss):

  Foreign currency translation adjustments

  Post retirement benefit plan adjustments, net of tax (Note 11)

  Comprehensive income (loss) attributable to WESCO International, Inc.

$

Earnings per share attributable to WESCO International, Inc. (Note 10)

Basic

Diluted

$

$

3.42

3.38

Year Ended December 31,

2017

2016

2015

(In thousands, except per share data)

$

7,679,021

$

7,336,017

$

7,518,487

6,194,366

1,099,748

5,887,814

1,049,286

6,024,826

1,054,951

64,017

320,890

68,450

—

252,440

89,307

163,133
(327)
163,460

85,762
(6,381)
242,841

66,858

332,059

76,575

123,933

131,551

30,431

101,120
(468)
101,588

38,275
(2,485)
137,378

2.30

2.10

$

$

$

$

64,968

373,742

69,832

—

303,910

95,537

208,373
(2,314)
210,687

(225,795)
4,532
(10,576)

4.85

4.18

$

$

$

$

The accompanying notes are an integral part of the consolidated financial statements.

36

 
 
 
 
 
 
(In thousands)
Balance, December 31, 2014
Exercise of stock-based awards, including

tax benefit of $1,403

Stock-based compensation expense
Conversion of 2029 Debentures, net of tax
Repurchase of common stock
Tax withholding related to vesting of

restricted stock units and retirement of
common stock

Noncontrolling interests
Net income attributable to WESCO
Translation adjustments
Benefit plan adjustments, net of tax effect

of $1,661

Balance, December 31, 2015
Exercise of stock-based awards, including

tax benefit of $67

Stock-based compensation expense
Conversion of 2029 Debentures, net of tax
Tax withholding related to vesting of

restricted stock units and retirement of
common stock

Noncontrolling interests
Net income attributable to WESCO
Translation adjustments
Benefit plan adjustments, net of tax effect

of $302

Balance, December 31, 2016
Exercise of stock-based awards
Stock-based compensation expense
Repurchase of common stock
Tax withholding related to vesting of

restricted stock units and retirement of
common stock

Noncontrolling interests
Net income attributable to WESCO
Translation adjustments
Benefit plan adjustments, net of tax effect

of $2,361

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

 CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

Common Stock

Class B
Common Stock

Amount
584
$

Shares
58,400,736

Amount
43
$

Shares
4,339,431

Additional
Capital
$ 1,102,369

Retained
Earnings
(Deficit)
$ 1,602,139

Treasury Stock

Shares

Amount
$ (616,366)

Accumulated Other
Comprehensive
Income
(Loss)

Noncontrolling
Interests

(18,250,178) $

(487) $

(206,498)

2

—

230,206

427

1,344
12,899
(2)
3,013

(3,300)

(44,267)

(153,013)

(2,468,576)

—

(33,989)

(2,202)

(145)

210,687

(2,314)

$

586

58,597,380

$

43

4,339,431

$ 1,117,421

$ 1,812,681

$ (772,679)

(20,763,021) $

(2,801) $

2

—

—

230,464

7,295

(17,358)

(2,876)
12,493
(139,765)

(3,224)

(44,191)

233,366

6,261,497

(1,253)

488

101,588

(468)

$

588
3

58,817,781
243,361

$

43

4,339,431

$

986,020
(407)
14,809
38

$ 1,914,757

$ (542,537)
(4,583)

(14,545,715) $
(51,501)

(3,269) $

(100,038)

(1,778,537)

—

(15,380)

(1,304)

1,480

163,460

(327)

(225,795)

4,532
(427,761)

38,275

(2,485)
(391,971)

85,762

(6,381)
(312,590)

Balance, December 31, 2017

$

591

59,045,762

$

43

4,339,431

$

999,156

$ 2,079,697

$ (647,158)

(16,375,753) $

(3,596) $

The accompanying notes are an integral part of the consolidated financial statements.
37

 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

Operating Activities:
Net income
Adjustments to reconcile net income to net cash provided by operating activities:

Depreciation and amortization
Stock-based compensation expense
Amortization of debt discount and debt issuance costs
Loss on debt redemption (Note 7)
Gain on sale of property, buildings and equipment
Other operating activities
Deferred income taxes
Changes in assets and liabilities:

Trade receivables, net
Other accounts receivable
Inventories
Prepaid expenses and other assets
Accounts payable
Accrued payroll and benefit costs
Other current and noncurrent liabilities

Net cash provided by operating activities

Investing Activities:
Capital expenditures
Acquisition payments, net of cash acquired
Proceeds from sale of assets
Other investing activities

Net cash used in investing activities

Financing Activities:
Proceeds from issuance of short-term debt
Repayments of short-term debt
Proceeds from issuance of long-term debt
Repayments of long-term debt
Debt issuance costs
Repurchase of common stock (Note 10)
Other financing activities

Net cash used in financing activities

Effect of exchange rate changes on cash and cash equivalents
Net change in cash and cash equivalents
Cash and cash equivalents at the beginning of period
Cash and cash equivalents at the end of period
Supplemental disclosures:
Cash paid for interest
Cash paid for taxes
Non-cash investing and financing activities:

2017

Year Ended December 31,
2016
(In thousands)

2015

$

163,133

$

101,120

$

208,373

64,017
14,809
3,984
—
(4,038)
79
(50,396)

(112,977)
(14,163)
(119,002)
11,334
102,870
24,679
64,793
149,122

(21,507)
—
6,766
9,446
(5,295)

66,858
12,493
6,684
123,933
(4,702)
(836)
(45,174)

56,767
(1,628)
(1,612)
13,207
(40,607)
(1,922)
15,654
300,235

(17,957)
(50,890)
8,361
(10,000)
(70,486)

175,819
(164,030)
1,504,636
(1,556,636)
(915)
(106,792)
6,722
(141,196)
5,191
7,822
110,131
117,953

63,795
65,117

$

$

111,458
(131,501)
2,082,738
(2,323,568)
(6,002)
(4,818)
(4,570)
(276,263)
(3,634)
(50,148)
160,279
110,131

74,391
76,293

$

$

$

$

64,968
12,899
12,195
—
(45)
(11,627)
42,850

40,102
57,242
2,410
(8,517)
(55,914)
(15,015)
(66,872)
283,049

(21,658)
(151,595)
3,023
—
(170,230)

102,033
(101,353)
1,528,578
(1,435,820)
(3,359)
(155,805)
(2,089)
(67,815)
(13,044)
31,960
128,319
160,279

66,342
74,213

Property, buildings and equipment acquired through capital leases

552

1,143

288

The accompanying notes are an integral part of the consolidated financial statements.

38

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. ORGANIZATION

WESCO  International,  Inc.  ("WESCO  International")  and  its  subsidiaries  (collectively,  “WESCO”  or  the  "Company"), 
headquartered in Pittsburgh, Pennsylvania, is a full-line distributor of electrical, industrial and communications maintenance, 
repair and operating ("MRO") and original equipment manufacturer ("OEM") products, construction materials, and advanced 
supply chain management and logistics services used primarily in the industrial, construction, utility and commercial, institutional 
and government markets. WESCO serves approximately 70,000 active customers globally, through approximately 500 branches 
and 10 distribution centers located primarily in the United States, Canada and Mexico, with operations in 15 additional countries.

2. ACCOUNTING POLICIES

Basis of Consolidation

The consolidated financial statements include the accounts of WESCO International and all of its subsidiaries. All significant 

intercompany accounts and transactions have been eliminated in consolidation.

Revision of Prior Period Financial Statements

In the third quarter of 2017, management determined that the Company's income taxes receivable and payable and other tax 
account balances were overstated as of December 31, 2016 by a cumulative net amount of $46.4 million, which related to multiple 
prior periods. The Company also identified a $10.2 million understatement related to deferred income taxes and goodwill. In 
accordance with Staff Accounting Bulletin (“SAB”) No. 99, Materiality, and SAB No. 108, Considering the Effects of Prior Year 
Misstatements  when  Quantifying  Misstatements  in  Current  Year  Financial  Statements,  management  concluded  that  these 
misstatements are not material to the Company's previously issued annual and interim financial statements. Correcting the effected 
financial statement line items in the year ended December 31, 2017 would have materially misstated the consolidated financial 
statements presented herein. Accordingly, the Consolidated Balance Sheet at December 31, 2016 and the Consolidated Statements 
of Stockholders' Equity for the years ended December 31, 2016 and 2015 have been revised in this Annual Report on Form 10-
K. There was an immaterial effect on the Consolidated Statements of Income and Comprehensive Income (Loss) for the years 
ended December 31, 2016 and 2015, and no effect on the Consolidated Statements of Cash Flows for such periods.

The following table presents the effects on the financial statement line items that were revised:

Income taxes receivable
Prepaid expenses and other current assets

Total current assets

Goodwill

Total assets

Income taxes payable

Total current liabilities

Deferred income taxes

Total liabilities
Retained earnings (1)
Accumulated other comprehensive loss (1)
Total WESCO International, Inc. stockholders' equity

Total stockholders' equity

Total liabilities and stockholders' equity

December 31, 2016

As 
Reported

Adjustment

(In thousands)

As 
Revised

$

72,881

$

48,583

2,172,457

1,720,714

4,490,984

32,879

896,797

158,009

2,480,972

1,956,532
(387,365)
2,013,281

2,010,012

4,490,984

(67,156) $
(2,223)
(69,379)
10,236
(59,143)
(22,998)
(22,998)
10,236
(12,762)
(41,775)
(4,606)
(46,381)
(46,381)
(59,143)

5,725

46,360

2,103,078

1,730,950

4,431,841

9,881

873,799

168,245

2,468,210

1,914,757
(391,971)
1,966,900

1,963,631

4,431,841

(1)   These financial statement line items have been revised as of December 31, 2015 and 2014 in the Consolidated Statements of Stockholders' 

Equity for the years ended December 31, 2017, 2016 and 2015.

39

 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles in the United States of 
America requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial 
statements and accompanying notes. Although these estimates are based on management’s best knowledge of current events and 
actions WESCO may undertake in the future, actual results may ultimately differ from the estimates.

Revenue Recognition

Revenues are recognized for product sales when title, ownership and risk of loss pass to the customer or for services when the 
service is rendered. In the case of stock sales and special orders, a sale occurs at the time of shipment from WESCO's distribution 
point, as the terms of WESCO’s sales are typically FOB shipping point. In cases where WESCO processes customer orders that 
ship directly from suppliers, revenue is recognized once the product is shipped and title has passed. In all cases, revenue is recognized 
once the sales price to the customer is fixed or is determinable and WESCO has reasonable assurance as to the collectability. 

WESCO  provides  integrated  supply  services  to  certain customers,  which  include  some  or  all  of  the  following:  determine 
inventory stocking levels; establish inventory reorder points; launch purchase orders; receive material; pack away material; and, 
pick material for order fulfillment. WESCO recognizes revenue for these services in the period rendered based upon a previously 
negotiated fee arrangement. WESCO also sells inventory to these customers and recognizes revenue at the time title and risk of 
loss transfers to the customer. The amount of revenue recognized for integrated supply services totaled $26.2 million, $27.1 million, 
and $35.1 million in 2017, 2016 and 2015, respectively.

Selling, General and Administrative Expenses

WESCO includes warehousing, purchasing, branch operations, information services, and marketing and selling expenses in 

this category, as well as other types of general and administrative costs.

Supplier Volume Rebates

WESCO receives volume rebates from certain suppliers based on contractual arrangements with such suppliers. Volume rebates 
are included within other accounts receivable in the Consolidated Balance Sheets, and represent the estimated amounts due to 
WESCO under the rebate provisions of the various supplier contracts. The corresponding rebate income is derived from the level 
of actual purchases made by WESCO and is recorded as a reduction to cost of goods sold. Receivables under the supplier rebate 
program were $72.7 million at December 31, 2017 and $64.2 million at December 31, 2016. Supplier volume rebate rates have 
historically ranged between approximately 0.9% and 1.4% of sales depending on market conditions. In 2017, the rebate rate was 
1.3%.

Shipping and Handling Costs and Fees

WESCO records the costs and fees associated with transporting its products to customers as a component of selling, general 
and administrative expenses. These costs totaled $61.8 million, $57.9 million and $59.4 million in 2017, 2016 and 2015, respectively.

Cash Equivalents

Cash equivalents are defined as highly liquid investments with original maturities of 90 days or less when purchased.

Asset Securitization

WESCO  maintains  control  of  the  receivables  transferred  pursuant  to  its  accounts  receivable  securitization  program  (the 
“Receivables Facility”); therefore, the transfers do not qualify for “sale” treatment. As a result, the transferred receivables remain 
on the balance sheet, and WESCO recognizes the related secured borrowing. The expenses associated with the Receivables Facility 
are reported as interest expense in the Consolidated Statements of Income and Comprehensive Income (Loss). 

Allowance for Doubtful Accounts

WESCO maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make 
required payments. WESCO has a systematic procedure using estimates based on historical data and reasonable assumptions of 
collectability made at the local branch level and on a consolidated corporate basis to calculate the allowance for doubtful accounts. 
If the financial condition of WESCO’s customers were to deteriorate, resulting in an impairment of their ability to make payments, 
additional allowances may be required. The allowance for doubtful accounts was $21.3 million at December 31, 2017 and $22.0 
million at December 31, 2016. The total amount recorded as selling, general and administrative expense related to bad debts was 
$8.5 million, $5.9 million and $6.1 million for 2017, 2016 and 2015, respectively.

40

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Inventories

Inventories primarily consist of merchandise purchased for resale and are stated at the lower of cost and net realizable value. 
Cost is determined principally under the average cost method. WESCO makes provisions for obsolete or slow-moving inventories 
as necessary to reflect reductions in value. WESCO writes down its inventories to net realizable value based on internal factors 
derived from historical analysis of actual losses. On a retrospective basis, WESCO identifies items in excess of 36 months supply 
relative to demand or movement. WESCO then analyzes the ultimate disposition of identified excess inventories as they are sold, 
returned to supplier, or scrapped. This historical item-by-item analysis allows WESCO to develop an estimate of the likelihood 
that an item identified as being in excess supply ultimately becomes obsolete. WESCO applies the estimate to inventories currently 
in excess of 36 months supply, and reduces the carrying value of its inventories by the derived amount. Reserves for excess and 
obsolete inventories were $28.6 million and $27.3 million at December 31, 2017 and 2016, respectively. The total expense related 
to excess and obsolete inventories, included in cost of goods sold, was $8.8 million, $7.3 million and $8.6 million for 2017, 2016
and 2015, respectively. WESCO absorbs into the cost of inventories certain overhead expenses such as purchasing, receiving and 
storage and at December 31, 2017 and 2016, $70.7 million and $65.3 million, respectively, of these costs were included in ending 
inventories.

Property, Buildings and Equipment

Property, buildings and equipment are recorded at cost. Depreciation expense is determined using the straight-line method 
over the estimated useful lives of the assets. Leasehold improvements are amortized over either their respective lease terms or 
their  estimated  lives,  whichever  is  shorter.  Estimated  useful  lives  range  from  five  to  forty  years  for  buildings  and  leasehold 
improvements and three to ten years for furniture, fixtures and equipment.

Capitalized computer software costs are amortized using the straight-line method over the estimated useful life, typically three 

to five years, and are reported at the lower of unamortized cost or net realizable value.

Expenditures for new facilities and improvements that extend the useful life of an asset are capitalized. Ordinary repairs and 
maintenance are expensed as incurred. When property is retired or otherwise disposed of, the cost and the related accumulated 
depreciation are removed from the accounts and any resulting gains or losses are recorded and reported as selling, general and 
administrative expenses.

Of WESCO’s $156.4 million net book value of property, buildings and equipment as of December 31, 2017, $97.6 million
consists of land, buildings and leasehold improvements and are geographically dispersed among WESCO’s 500 branches and 10
distribution centers, mitigating the risk of impairment. WESCO assesses its long-lived assets for impairment whenever events or 
changes  in  circumstances  indicate  that  the  carrying  amount  of  any  such  assets  may  not  be  fully  recoverable.  Changes  in 
circumstances include technological advances, changes in the business model, capital structure, economic conditions or operating 
performance. The evaluation is based upon, among other things, utilization, serviceability and assumptions about the estimated 
future undiscounted cash flows that these assets are expected to generate. When the sum of the undiscounted cash flows is less 
than the carrying value of the asset or asset group, an impairment loss is recognized to the extent that carrying value exceeds fair 
value. Management applies its best judgment when performing these evaluations.

Goodwill and Indefinite-Lived Intangible Assets

Goodwill and indefinite-lived intangible assets are tested for impairment annually during the fourth quarter using information 
available at the end of September, or more frequently if triggering events occur, indicating that their carrying value may not be 
recoverable. WESCO tests for goodwill impairment on a reporting unit level and the evaluation involves comparing the fair value 
of each reporting unit to its carrying value. The fair values of the reporting units are determined using a combination of a discounted 
cash flow analysis and market multiples. Assumptions used for these fair value techniques are based on a combination of historical 
results,  current  forecasts,  market  data  and  recent  economic  events.  WESCO  evaluates  the  recoverability  of  indefinite-lived 
intangible assets using the relief-from-royalty method based on projected financial information. At December 31, 2017 and 2016, 
respectively, goodwill and indefinite-lived trademarks totaled $1.87 billion and $1.83 billion.

We performed our annual impairment testing of goodwill and indefinite-lived intangible assets during the fourth quarter. A 
possible  indicator  of  goodwill  impairment  is  the  relationship  of  a  company’s  market  capitalization  to  its  book  value. As  of 
December 31, 2017, our market capitalization exceeded our book value and the fair values of our reporting units exceeded their 
carrying values.  Accordingly, there were no impairment losses identified as a result of our annual test.

The determination of fair value involves significant management judgment and management applies its best judgment when 
assessing the reasonableness of financial projections. Fair values are sensitive to changes in underlying assumptions and factors. 
As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual goodwill and indefinite-
lived intangible impairment tests will prove to be an accurate prediction of future results. 

41

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

 Definite Lived Intangible Assets

Intangible assets are amortized over 2 to 20 years. A portion of intangible assets related to certain customer relationships are 
amortized using an accelerated method whereas all other intangible assets subject to amortization use a straight-line method that 
reflects the pattern in which the economic benefits of the respective assets are consumed or otherwise used. Intangible assets are 
tested for impairment if events or circumstances occur indicating that the respective asset might be impaired.

Insurance Programs

WESCO uses commercial insurance for auto, workers’ compensation, casualty and health claims, and information technology 
as a risk-reduction strategy to minimize catastrophic losses. The Company’s strategy involves large deductible policies where 
WESCO must pay all costs up to the deductible amount. WESCO estimates the reserve for these programs based on historical 
incident rates and costs. The assumptions included in developing this accrual include the period of time between the incurrence 
and payment of a claim. The total liability related to the insurance programs was $13.9 million and $9.5 million at December 31, 
2017 and 2016, respectively.

Income Taxes

WESCO accounts for income taxes under the asset and liability method, which requires the recognition of deferred income 
taxes for events that have future tax consequences. Under this method, deferred income taxes are recognized (using enacted tax 
laws and rates) based on the future income tax effects of differences in the carrying amounts of assets and liabilities for financial 
reporting and tax purposes. The effect of a tax rate change on deferred tax assets and liabilities is recognized in income in the 
period of change.

WESCO recognizes deferred tax assets at amounts that are expected to be realized. To make such determination, management 
evaluates all positive and negative evidence, including but not limited to, prior, current and future taxable income, tax planning 
strategies and future reversals of existing temporary differences. A valuation allowance is recognized if it is “more-likely-than-
not” that some or all of a deferred tax asset will not be realized. WESCO regularly assesses the realizability of deferred tax assets.

WESCO accounts for uncertainty in income taxes using a "more-likely-than-not" recognition threshold. Due to the subjectivity 
inherent  in  the  evaluation  of  uncertain  tax  positions,  the  tax  benefit  ultimately  recognized  may  materially  differ  from  the 
estimate. WESCO recognizes interest and penalties related to uncertain tax benefits as part of interest expense and income tax 
expense, respectively.

The Tax Cuts and Jobs Act of 2017 (the “TCJA”) imposes a one-time tax on the deemed repatriation of undistributed foreign 
earnings. Notwithstanding the effects of applying such provisions of the TCJA, WESCO continues to assert that the earnings of 
its foreign subsidiaries are indefinitely reinvested. However, as a result of the TCJA, the Company is reevaluating its intent and 
ability to repatriate foreign cash based upon the available liquidity and cash flow needs of its foreign subsidiaries and will disclose 
in future filings any change in its intention to repatriate undistributed foreign earnings and any resulting income tax impacts. Until 
the Company completes this reevaluation, it is not practicable to determine the amount of any unrecognized deferred income taxes 
on these undistributed foreign earnings.

The provisions of the TCJA also introduce U.S. taxation on certain global intangible low-taxed income ("GILTI"). WESCO 

has elected to account for any GILTI tax that arises in future periods as a component of income tax expense.

Provisional amounts are recorded for certain income tax effects of the TCJA for which the accounting is incomplete, but a 
reasonable estimate can be determined. Provisional amounts, or adjustments to provisional amounts, identified during the period 
ending on or before one year from the TCJA's enactment date are recognized as an adjustment to income tax expense or benefit 
from continuing operations in the period the amounts are determined.

Debt Issuance Costs

WESCO capitalizes costs associated with the issuance of debt and such costs are amortized over the term of the respective 
debt instrument on a straight-line basis. Debt issuance costs are presented in the Consolidated Balance Sheets as a direct reduction 
from the carrying amount of the related debt liability. Upon prepayment of debt, the Company accelerates the recognition of an 
appropriate amount of the costs as refinancing or extinguishment of debt. During the year ended December 31, 2017, the Company 
capitalized debt issuance costs of $0.9 million. As of December 31, 2017 and 2016, unamortized debt issuance costs of $13.7 
million and $16.5 million were recorded in the Consolidated Balance Sheets, respectively.

42

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Convertible Debentures

WESCO separately accounted for the liability and equity components of the 6.0% Convertible Senior Debentures due 2029 
(the "2029 Debentures") in a manner that reflected its non-convertible debt borrowing rate. WESCO estimated its non-convertible 
debt borrowing rate through a combination of discussions with its financial institutions and review of relevant market data. The 
discounts to the convertible debt balances were amortized to interest expense, using the effective interest method, over the implicit 
life of the debentures. 

Foreign Currency

The local currency is the functional currency for the majority of WESCO’s operations outside the United States. Assets and 
liabilities of these operations are translated to U.S. dollars at the exchange rate in effect at the end of each period. Income statement 
accounts are translated at an exchange rate that approximates the average for the period. Translation adjustments arising from the 
use of differing exchange rates from period to period are included as a component of other comprehensive income (loss) within 
stockholders’ equity. Gains and losses from foreign currency transactions are included in net income for the period.

Defined Benefit Pension Plan

Liabilities  and  expenses  for  pension  benefits  are  determined  using  actuarial  methodologies  and  incorporate  significant 
assumptions, including the interest rate used to discount the future estimated cash flows, the expected long-term rate of return on 
plan assets, and several assumptions relating to the employee workforce (salary increases, retirement age, and mortality).

The interest rate used to discount future estimated cash flows is determined using the Canadian Institute of Actuaries ("CIA") 
methodology, which references yield curve information provided by Fiera Capital and matches expected benefit payments. The 
expected long-term rate of return on plan assets is applied to the fair market-related value of plan assets. The discount rate used 
to determine the projected benefit obligations for the Canadian pensions was 3.5% at December 31, 2017.

Stock-Based Compensation

WESCO's stock-based employee compensation plans are comprised of stock-settled stock appreciation rights, restricted stock 
units, and performance-based awards. Compensation cost for all stock-based awards is measured at fair value on the date of grant, 
and compensation cost is recognized, net of forfeitures, over the service period for awards expected to vest. The fair value of stock-
settled appreciation rights and performance-based awards with market conditions is determined using the Black-Scholes and Monte 
Carlo simulation models, respectively. The fair value of restricted stock units with service conditions and performance-based 
awards with performance conditions is determined by the grant-date closing price of WESCO's common stock. Expected volatilities 
are based on historical volatility of WESCO's common stock. WESCO estimates the expected life of stock-settled stock appreciation 
rights using historical data pertaining to option exercises and employee terminations. The risk-free rate is based on the U.S. Treasury 
yields in effect at the time of grant. The forfeiture assumption is based on WESCO's historical employee behavior, which is reviewed 
on an annual basis. No dividends are assumed for stock-based awards.  For stock appreciation rights that are exercised and for 
restricted stock units and performance-based award that vest, shares are issued out of WESCO's outstanding common stock.

Treasury Stock

Common stock purchased for treasury is recorded at cost. At the date of subsequent reissue, the treasury stock account is 

reduced by the cost of such stock, with cost determined on a weighted-average basis.

Fair Value of Financial Instruments

The Company measures the fair value of financial assets and liabilities in accordance with Financial Accounting Standards 
Board (FASB) Accounting Standards Codification (ASC) 820, "Fair Value Measurements and Disclosures." ASC 820 establishes 
a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value and requires an entity to maximize 
the use of observable inputs and minimize the use of unobservable inputs. The hierarchy gives the highest priority to unadjusted 
quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to measurements 
involving significant unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows:

• 

• 

Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that are accessible at 
the measurement date.

Level 2 inputs include inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices 
in active markets for similar assets and liabilities, quoted prices for identical or similar assets or liabilities in markets 
that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially 
the full term of assets or liabilities.

43

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

• 

Level 3 inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop 
its own assumptions.

The  Company’s  financial  instruments  consist  of  cash  and  cash  equivalents,  accounts  receivable,  accounts  payable,  bank 
overdrafts, other accrued liabilities, and outstanding indebtedness. The reported carrying amounts of WESCO’s debt instruments 
totaled $1.36 billion and $1.40 billion at December 31, 2017 and 2016, respectively, and approximated their fair values which 
totaled $1.39 billion and $1.42 billion, respectively. The Company uses a market approach to fair value all of its debt instruments, 
utilizing quoted prices in active markets, interest rates and other relevant information generated by market transactions involving 
similar instruments. Therefore, all of the Company's debt instruments are classified as Level 2 within the valuation hierarchy. For 
all of the Company's remaining financial instruments, carrying values are considered to approximate fair value.

Environmental Expenditures

WESCO has facilities and operations that distribute certain products that must comply with environmental regulations and 
laws. Expenditures for current operations are expensed or capitalized, as appropriate. Expenditures relating to existing conditions 
caused by past operations, and that do not contribute to future revenue, are expensed. Liabilities are recorded when remedial efforts 
are probable and the costs can be reasonably estimated.  

Recently Adopted Accounting Pronouncements

In  March  2016,  the  Financial Accounting  Standards  Board  (FASB)  issued Accounting  Standards  Update  (ASU)  2016-09, 
Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which simplifies 
several  aspects  of  accounting  for  share-based  payment  transactions,  including  the  income  tax  consequences,  classification  of 
awards as either equity or liabilities, and classification on the statement of cash flows. The amendments in this ASU affect all 
entities that issue share-based payment awards to their employees. The Company adopted this ASU in the first quarter of 2017. 
The  amendment  related  to  the  recognition  of  excess  tax  benefits  and  deficiencies  was  applied  prospectively  and  lowered  the 
Company's effective tax rate by approximately 1% for the year ended December 31, 2017. The amendment related to the presentation 
of excess tax benefits on the statement of cash flows was also applied prospectively, and did not have a material impact on WESCO's 
cash flows. The other amendments, which were adopted by the Company according to the respective transition requirements, had 
no impact on the consolidated financial statements and notes thereto.

In  October  2016,  the  FASB  issued ASU  2016-16,  Income  Taxes  (Topic  740):  Intra-Entity  Transfers  of Assets  Other  Than 
Inventory. The purpose of ASU 2016-16 is to simplify the income tax accounting of an intra-entity transfer of an asset other than 
inventory and to record its effect when the transfer occurs. The Company early adopted this ASU on a modified retrospective basis 
in the first quarter of 2017. The adoption of this ASU did not have a material impact on WESCO's financial position and it had no 
impact on its results of operations or cash flows.

Recently Issued Accounting Pronouncements

In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers: Deferral of Effective Date. The 
Company previously reported that in May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which 
provides a framework for addressing revenue recognition issues and replaces almost all existing revenue recognition guidance in 
current U.S. generally accepted accounting principles. The core principle of ASU 2014-09 is for companies to recognize revenue 
for the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be 
entitled in exchange for those goods or services. ASU 2014-09 will also result in enhanced disclosures about revenue, provide 
guidance  for  transactions  that  were  not  previously  addressed  comprehensively,  and  improve  guidance  for  multiple-element 
arrangements. The  amendments  in ASU  2015-14  defer  the  effective  date  of  the  new  revenue  recognition  guidance  to  annual 
reporting periods beginning after December 15, 2017, including interim periods within that reporting period. During 2016, the 
FASB issued four ASUs that address implementation issues and correct or improve certain aspects of the new revenue recognition 
guidance, including ASU 2016-08, Principal versus Agent Considerations (Reporting Revenue Gross versus Net), ASU 2016-10, 
Identifying Performance Obligations and Licensing, ASU 2016-12, Narrow-Scope Improvements and Practical Expedients and 
ASU 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers. These ASUs do 
not change the core principles in the revenue recognition standard outlined above. The Company developed a multiphase plan and 
established a cross-functional team to evaluate and implement the new standard. Management completed the diagnostic and testing 
phase of the project, which involved reviewing various customer contracts and comparing current accounting to the requirements 
of the new standard. Currently management is evaluating the new disclosure requirements and identifying and implementing 
appropriate changes to the Company's business processes and controls to support recognition and disclosure under the new standard. 
The new standard will be adopted in the first quarter of 2018 using the modified retrospective method. Except for new disclosures 
requirements, the adoption of this pronouncement is not expected to have a material impact on WESCO's consolidated financial 
statements.

44

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

In February 2016, the FASB issued ASU 2016-02, Leases, a comprehensive new standard that amends various aspects of 
existing accounting guidance for leases, including the recognition of a right-of-use asset and a lease liability in the balance sheet 
and disclosing key information about leasing arrangements. This guidance is effective for fiscal years beginning after December 
15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The new leasing standard requires 
modified retrospective transition, which requires application of the new guidance at the beginning of the earliest comparative 
period presented in the year of adoption. Management is currently evaluating the impact of this standard and right-of-use assets 
and lease liabilities will be recorded in the Consolidated Balance Sheets upon adoption. An estimate of the impact of this standard 
is not currently determinable.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses 
on Financial Instruments, which introduces new guidance for the accounting for credit losses on certain financial instruments. 
The amendments in ASU 2016-13 are effective for fiscal years beginning after December 15, 2019, including interim periods 
within those fiscal years and early adoption is permitted. The Company does not expect the adoption of this accounting standard 
to have a material impact on its consolidated financial statements and notes thereto. 

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts 
and Cash Payments (a consensus of the Emerging Issues Task Force). This ASU provides guidance on eight specific cash flow 
issues where there is diversity in practice. The amendments in this ASU are effective for fiscal years beginning after December 
15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. Except 
for potential reclassifications within the statement of cash flows, the Company does not expect the adoption of this accounting 
standard to have a material impact on its consolidated financial statements and notes thereto.

In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill 
Impairment, which eliminates Step 2 from the goodwill impairment test. Under the amendments in this update, an entity should 
perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. 
An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair 
value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. An entity 
should apply the amendments in this ASU on a prospective basis. This guidance is effective for fiscal years beginning after December 
15, 2019, including interim periods within those fiscal years. The Company does not expect the adoption of this accounting standard 
to have a material impact on its consolidated financial statements and notes thereto.

In March 2017, the FASB issued ASU 2017-07, Compensation—Retirement Benefits (Topic 715): Improving the Presentation 
of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. Presently, net benefit cost is reported as an employee 
cost within operating income (or capitalized into assets when appropriate). This amendment requires the bifurcation of net benefit 
cost. The service component will be presented with other employee compensation costs in operating income (or capitalized in 
assets). The other components will be reported separately outside of operations, and will not be eligible for capitalization. This 
guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early 
adoption is permitted. The Company does not expect the adoption of this accounting standard to have a material impact on its 
consolidated financial statements and notes thereto.

In  May  2017,  the  FASB  issued ASU  2017-09,  Compensation—Stock  Compensation  (Topic  718):  Scope  of  Modification 
Accounting,  which  clarifies  when  to  account  for  a  change  to  the  terms  or  conditions  of  a  share-based  payment  award  as  a 
modification. Under the new guidance, modification accounting is required only if the fair value, the vesting conditions, or the 
classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective 
prospectively for all companies for annual periods beginning on or after December 15, 2017. Early adoption is permitted. The 
Company does not expect the adoption of this accounting standard to have a material impact on its consolidated financial statements 
and notes thereto.

Other pronouncements issued by the FASB or other authoritative accounting standards groups with future effective dates are 

either not applicable or are not expected to be significant to WESCO’s financial position, results of operations or cash flows.

45

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

3. GOODWILL AND INTANGIBLE ASSETS

Goodwill

The following table sets forth the changes in the carrying value of goodwill:

Beginning balance January 1

Foreign currency exchange rate changes
Adjustments to goodwill for acquisitions (1)
Prior period revision (Note 2)

Ending balance December 31

Year Ended December 31,

2017

2016

(In thousands)

$

1,730,950

$

1,681,662

40,927

—

—

21,434

17,618

10,236

$

1,771,877

$

1,730,950

(1)   For the year ended December 31, 2016, adjustments relate to goodwill resulting from the preliminary allocation of the purchase price for 
Atlanta Electrical Distributors, LLC to the respective assets acquired and liabilities assumed, partially offset by an adjustment to goodwill 
related to deferred income taxes.

Intangible Assets

The components of intangible assets are as follows:

December 31, 2017

December 31, 2016

Life

Gross 
Carrying
Amount (1)

Accumulated
Amortization (1)

Net
Carrying
Amount

Gross 
Carrying
Amount (1)

(In thousands)

Accumulated
Amortization (1)

Net
Carrying
Amount

Intangible assets:

Trademarks

Trademarks

Non-compete agreements

Customer relationships

Distribution agreements

Patents

Indefinite

$ 100,249

$

— $ 100,249

$ 96,962

$

— $

4-15

2-7

2-20

10-19

10

25,118

196

377,270

39,515

48,310

$ 590,658

(5,516)
(102)
(161,711)
(22,200)
(34,025)

19,602

25,098

94

196

215,559

362,637

17,315

38,972

48,310

$ 572,175

(3,426)
(63)
(126,835)
(19,295)
(29,194)

14,285
$ (223,554) $ 367,104

19,116
$ (178,813) $ 393,362

96,962

21,672

133

235,802

19,677

(1)  Excludes the original cost and accumulated amortization of fully-amortized intangible assets.

Amortization expense related to intangible assets totaled $37.8 million, $39.1 million and $36.9 million for the years ended 

December 31, 2017, 2016 and 2015, respectively.  

The following table sets forth the estimated amortization expense for intangible assets for the next five years:

For the year ending December 31,
2018

2019

2020

2021

2022

(In thousands)
37,848
$

36,549

34,621

26,930

24,350

46

 
 
 
 
 
 
 
 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

4. CONCENTRATIONS OF CREDIT RISK AND SIGNIFICANT SUPPLIERS

WESCO distributes its products and services and extends credit to a large number of customers in the industrial, construction, 
utility, and commercial, institutional and government markets. Based upon WESCO’s broad customer base, the Company has 
concluded that it has no material credit risk as a result of customer concentration. WESCO's largest supplier is Eaton Corporation, 
accounting for approximately 11% of its purchases in 2017, 2016 and 2015. Therefore, WESCO could potentially incur risk due 
to supplier concentration. 

5. ACQUISITIONS

The following table sets forth the consideration paid for acquisitions:

Year Ended December 31,
2016

2015

2017

Fair value of assets acquired

Fair value of liabilities assumed

Cash paid for acquisitions

Supplemental cash flow disclosure related to acquisitions:

Cash paid for acquisitions

Less: cash acquired

Cash paid for acquisitions, net of cash acquired

(In thousands)

— $

—

— $

— $

—

— $

76,980

25,058

51,922

51,922
(1,032)
50,890

$

$

$

$

192,099

39,836

152,263

152,263
(668)
151,595

$

$

$

$

Atlanta Electrical Distributors, LLC

On  March 14,  2016,  WESCO  Distribution,  Inc.  ("WESCO  Distribution")  completed  the  acquisition  of Atlanta  Electrical 
Distributors, LLC, an Atlanta-based electrical distributor focused on the construction and MRO markets from five locations in 
Georgia with approximately $85 million in annual sales. WESCO Distribution funded the purchase price paid at closing with 
borrowings under its revolving credit facility. The purchase price was allocated to the respective assets and liabilities based upon 
their estimated fair values as of the acquisition date. In addition to the cash paid at closing, the purchase price included a contingent 
payment that may be earned upon the achievement of certain financial performance targets over three consecutive one year periods. 
The fair value of the contingent consideration was determined using a probability-weighted outcome analysis and Level 3 inputs 
such as internal forecasts. This amount was initially accrued at the maximum potential payout under the terms of the purchase 
agreement  and  was  reduced  in  2017  to  reflect  a  payout  that  is  aligned  with  current  financial  performance. The  fair  value  of 
intangibles was estimated by management and the allocation resulted in intangible assets of $21.8 million and goodwill of $30.0 
million. The intangible assets include customer relationships of $15.8 million amortized over 13 and 14 years, a trademark of $6.0 
million amortized over 13 years, and non-compete agreements of less than $0.1 million amortized over 5 years. No residual value 
was estimated for the intangible assets being amortized. The majority of goodwill is deductible for tax purposes.

Hill Country Electric Supply, LP and Needham Electric Supply Corporation

On May 1, 2015, WESCO Distribution completed the acquisition of Hill Country Electric Supply, LP ("Hill Country"), an 
electrical  distributor  focused  on  the  commercial  construction  market  from  nine  locations  in  Central  and  South  Texas  with 
approximately $140 million in annual sales. WESCO Distribution funded the purchase price paid at closing with borrowings under 
its prior revolving credit facility. The purchase price was allocated to the respective assets and liabilities based upon their estimated 
fair values as of the acquisition date. The fair value of intangibles was estimated by management and the allocation resulted in 
intangible assets of $21.1 million and goodwill of $16.2 million. The majority of goodwill is deductible for tax purposes.

On October 30, 2015, WESCO Distribution completed the acquisition of Needham Electric Supply Corporation ("Needham"), 
an  electrical  distributor  focused  on  the  commercial  construction  and  lighting  national  account  markets  from  24  locations  in 
Massachusetts, New Hampshire and Vermont with approximately $115 million in annual sales. WESCO Distribution funded the 
purchase price paid at closing with cash and borrowings under its revolving credit facility. The purchase price was allocated to the 
respective assets and liabilities based upon their estimated fair values as of the acquisition date. The fair value of intangibles was 
estimated by management and the allocation resulted in intangible assets of $31.0 million and goodwill of $35.7 million. The 
majority of goodwill is deductible for tax purposes.

47

 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

For the acquisitions of Hill Country and Needham that were made in 2015, the intangible assets include customer relationships 
of $37.6 million amortized over 11 to 14 years, trademarks of $14.3 million amortized over 12 and 13 years, and other intangibles 
of $0.2 million. No residual value is estimated for the intangible assets being amortized.

6. PROPERTY, BUILDINGS AND EQUIPMENT

The following table sets forth the components of property, buildings and equipment:

As of December 31,

2017

2016

(In thousands)

Buildings and leasehold improvements

$

117,894

$

Furniture, fixtures and equipment

Software costs

Accumulated depreciation and amortization

Land

Construction in progress

183,801

103,842

405,537
(278,455)
127,082

25,814

3,549

117,461

178,183

93,040

388,684
(259,126)
129,558

24,653

3,396

$

156,445

$

157,607

Depreciation expense was $16.3 million, $17.1 million and $17.8 million, and capitalized software amortization was $9.9 
million, $10.6 million and $10.3 million, in 2017, 2016 and 2015, respectively. The unamortized software cost was $22.4 million
and $21.6 million as of December 31, 2017 and 2016, respectively. Furniture, fixtures and equipment include capitalized leases 
of $10.6 million and $12.0 million and related accumulated amortization of $9.0 million and $8.9 million as of December 31, 2017
and 2016, respectively.

7. DEBT

The following table sets forth WESCO’s outstanding indebtedness:

As of 
December 31,

2017

2016

(In thousands)

International lines of credit

$

34,075

$

Term Loan Facility, less debt discount of $513 and $770 in 2017 and 2016, respectively

Accounts Receivable Securitization Facility

Revolving Credit Facility

5.375% Senior Notes due 2021

5.375% Senior Notes due 2024

Capital leases

Total debt

Less unamortized debt issuance costs

Less short-term debt and current portion of long-term debt

Total long-term debt

International Lines of Credit

84,237

380,000

12,000

500,000

350,000

1,959

20,920

143,980

380,000

4,000

500,000

350,000

2,881

1,362,271
(13,711)
(35,299)
1,313,261

$

1,401,781
(16,508)
(22,138)
1,363,135

$

Certain foreign subsidiaries of WESCO have entered into uncommitted lines of credit, which serve as overdraft facilities, to 
support local operations. The maximum borrowing limit varies by facility and ranges between $0.3 million and $21.0 million. The 
applicable interest rate for borrowings under these lines of credit varies by country and is governed by the applicable loan agreement. 
The international lines of credit are renewable on an annual basis and certain facilities are fully and unconditionally guaranteed 

48

 
 
 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

by WESCO Distribution. Accordingly, borrowings under these lines directly reduce availability under the Revolving Credit Facility. 
The average interest rate for these facilities was 5.42% and 7.36% at December 31, 2017 and 2016, respectively.

Term Loan Facility 

On December 12, 2012, WESCO Distribution, as U.S. borrower, WDCC Enterprises Inc. ("WDCC" and together with WESCO 
Distribution, the “Borrowers”), as Canadian borrower, and WESCO International entered into a Term Loan Agreement (the “Term 
Loan Agreement”) among WESCO Distribution, WDCC, the Company, the lenders party thereto and Credit Suisse AG Cayman 
Islands Branch, as administrative agent and as collateral agent. 

The Term Loan Agreement provided a seven-year term loan facility (the “Term Loan Facility”), which consisted of two separate 
sub-facilities: (i) a Canadian sub-facility in an aggregate principal amount of CAD150 million, issued at a 2.0% discount, and (ii) 
a U.S. sub-facility in an aggregate principal amount of $700 million, issued at a 1.0% discount. The proceeds of the Term Loan 
Facility were used to finance the acquisition of EECOL, and to pay fees and expenses incurred in connection with the acquisition 
and certain other transactions. Subject to the terms of the Term Loan Agreement, the Borrowers may request incremental term 
loans from time to time in an aggregate principal amount not to exceed at any time $300 million, with an equivalent principal 
amount in U.S. dollars being calculated for any incremental term loan denominated in Canadian dollars.  

On November 19, 2013, the Borrowers and WESCO International entered into an amendment (the “Term Loan Amendment”) 
to the Term Loan Agreement. The Term Loan Amendment, among other things, reduced the applicable margin on U.S. term loans 
by 0.50% and the LIBOR floor applicable to the U.S. sub-facility from 1.00% to 0.75%. The modified pricing terms were effective 
December 13, 2013. 

On November 26, 2013, WESCO Distribution sold $500 million aggregate principal amount of 5.375% Senior Notes due 2021 
(the “2021 Notes”), and used the net proceeds plus excess cash to prepay $500 million under the Company's U.S. sub-facility of 
the Term Loan Facility (see discussion below under “5.375% Senior Notes due 2021” for additional information). The prepayment 
satisfied  all  remaining  quarterly  repayment  obligations  under  the  U.S.  sub-facility. As  of  December 31,  2017,  the  amount 
outstanding under the U.S. sub-facility was $84.8 million. The Canadian sub-facility was fully repaid in 2015 using cash provided 
by Canadian operations.

Borrowings under the Term Loan Facility bear interest at base rates plus applicable margins. At December 31, 2017, the interest 
rate on borrowings under the U.S. sub-facility was 4.7%. To the extent not previously paid, the outstanding U.S. sub-facility will 
become  due  and  payable  on  December  12,  2019,  with  any  unpaid  incremental  term  loans  becoming  due  and  payable  on  the 
respective maturity dates applicable to those incremental term loans. At any time or from time to time, the Borrowers may prepay 
borrowings under the Term Loan Facility in whole or in part without premium or penalty. The Borrowers' obligations under the 
Term Loan Facility are secured by substantially all of the assets of the Borrowers, the Company and certain of the Company's 
other subsidiaries; provided that, with respect to borrowings under the U.S. sub-facility, the collateral does not include assets of 
certain foreign subsidiaries or more than 65% of the issued and outstanding equity interests in certain foreign subsidiaries. 

The Term Loan Facility contains customary affirmative and negative covenants for credit facilities of this type. The Term Loan 

Facility also provides for customary events of default.

Accounts Receivable Securitization Facility

On November 8, 2017, WESCO Distribution amended its Receivables Facility pursuant to the terms and conditions of a Fifth 
Amendment  to  Fourth Amended  and  Restated  Receivables  Purchase Agreement,  by  and  among  WESCO  Receivables  Corp. 
(“WESCO Receivables”), WESCO Distribution, the various purchasers from time to time party thereto and PNC Bank, National 
Association, as Administrator (the "Amendment"). The Amendment extended the term of the Receivables Facility to September 
24, 2020 and added and amended certain other defined terms. Substantially all other terms and conditions of the Receivables 
Facility were unchanged. 

The Receivables Facility has a purchase limit of $550 million with the opportunity to exercise an accordion feature that permits 
increases in the purchase limit of up to $100 million. The interest rate spread and commitment fee of the Receivables Facility is 
0.95% and 0.45%, respectively.

Under the Receivables Facility, WESCO sells, on a continuous basis, an undivided interest in all domestic accounts receivable 
to WESCO Receivables, a wholly owned special purpose entity (the “SPE”). The SPE sells, without recourse, a senior undivided 
interest in the receivables to financial institutions for cash while maintaining a subordinated undivided interest in the receivables, 
in the form of overcollateralization. WESCO has agreed to continue servicing the sold receivables for the third-party conduits and 
financial institutions at market rates; accordingly, no servicing asset or liability has been recorded.

As of December 31, 2017 and 2016, accounts receivable eligible for securitization totaled $751.2 million and $657.5 million, 
respectively. The Consolidated Balance Sheets as of December 31, 2017 and 2016 include $380.0 million of account receivable 

49

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

balances legally sold to third parties in both years, as well as borrowings for equal amounts. At December 31, 2017, the interest 
rate for this facility was approximately 1.9%.

Revolving Credit Facility

On September 24, 2015, WESCO International, WESCO Distribution and certain other subsidiaries of the Company entered 
into a $600 million revolving credit facility (the “Revolving Credit Facility”), which contains a letter of credit sub-facility of up 
to  $125  million,  pursuant  to  the  terms  and  conditions  of  a  Second Amended  and  Restated  Credit Agreement  (the  "Credit 
Agreement"). The Revolving Credit Facility contains an accordion feature allowing WESCO Distribution to request increases to 
the borrowing commitments of up to $200 million in the aggregate, subject to customary conditions. 

The Revolving Credit Facility matures in September 2020 and consists of two separate sub-facilities: (i) a Canadian sub-facility 
with a borrowing limit of up to $400 million, which is collateralized by substantially all assets of WESCO Canada and the other 
Canadian Borrowers, other than, among other things, real property, in each case, subject to customary exceptions and limitations, 
and (ii) a U.S sub-facility with a borrowing limit of up to $600 million less the amount of outstanding borrowings under the 
Canadian sub-facility. The U.S. sub-facility is collateralized by substantially all assets of WESCO Distribution and its domestic 
subsidiaries which are party to the Credit Agreement, other than, among other things, real property and accounts receivable sold 
or intended to be sold pursuant to the Receivables Purchase Agreement. The applicable interest rate for borrowings under the 
Revolving Credit Facility includes interest rate spreads based on available borrowing capacity that range between 1.25% and 
1.75% for LIBOR-based borrowings and 0.25% and 0.75% for prime rate-based borrowings. At December 31, 2017, the interest 
rate for this facility was approximately 3.0%. 

The Credit Agreement requires ongoing compliance with certain customary affirmative and negative covenants. The Credit 

Agreement also contains customary events of default. 

During 2017, WESCO borrowed $834.4 million under the Revolving Credit Facility and made repayments in the aggregate 
amount  of  $826.4  million.  During  2016,  aggregate  borrowings  and  repayments  were  $1,025.8  million  and  $1,096.8  million, 
respectively. WESCO had $562.9 million available under the Revolving Credit facility at December 31, 2017, after giving effect 
to $18.0 million of outstanding letters of credit, $19.5 million of surety bonds, and $7.1 million of other reserves, as compared to 
$509.7 million available under the Revolving Credit facility at December 31, 2016, after giving effect to $20.1 million of outstanding 
letters of credit, $16.2 million of surety bonds, and $6.4 million of other reserves.

5.375% Senior Notes due 2021

In November 2013, WESCO Distribution issued $500 million aggregate principal amount of 2021 Notes through a private 
offering exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”). The 2021 
Notes were issued at 100% of par and are governed by an indenture (the “2021 Indenture”) entered into on November 26, 2013 
between WESCO International and U.S. Bank National Association, as trustee. The 2021 Notes are unsecured senior obligations 
of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. The 2021 Notes bear interest 
at a stated rate of 5.375%, payable semi-annually in arrears on June 15 and December 15 of each year. In addition, WESCO incurred 
costs related to the issuance of the 2021 Notes totaling $8.4 million, which are recorded as a reduction to the carrying value of the 
debt and are being amortized over the life of the notes. The 2021 Notes mature on December 15, 2021. The net proceeds of the 
2021 Notes were used to prepay a portion of the U.S. sub-facility of the term loans due 2019. 

Under the terms of a registration rights agreement dated as of November 26, 2013 among WESCO Distribution, WESCO 
International and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as the representative of the initial purchasers of the 2021 
Notes, WESCO Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in 
all material respects to the 2021 Notes (the “2021 Exchange Notes”) and to make an offer to exchange the 2021 Exchange Notes 
for the 2021 Notes. WESCO Distribution launched the exchange offer on June 12, 2014 and the exchange offer expired on July 
17, 2014.   

At any time WESCO Distribution may redeem all or a part of the 2021 Notes. Between December 15, 2017 and December 14, 
2018, WESCO Distribution may redeem all or a part of the 2021 Notes at a redemption price equal to 102.688% of the principal 
amount. Between December 15, 2018 and December 14, 2019, WESCO Distribution may redeem all or a part of the 2021 Notes 
at a redemption price equal to 101.344% of the principal amount. On and after December 15, 2019, WESCO Distribution may 
redeem all or a part of the 2021 Notes at a redemption price equal to 100% of the principal amount.

The 2021 Indenture contains customary covenants and customary events of default. In addition, upon a change of control, the 
holders of 2021 Notes have the right to require WESCO Distribution to repurchase all or any part of the 2021 Notes at a redemption 
price equal to 101% of the principal amount, plus accrued and unpaid interest.  

50

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

5.375% Senior Notes due 2024 

In June 2016, WESCO Distribution issued $350 million aggregate principal amount of 5.375% Senior Notes due 2024 (the 
"2024 Notes") through a private offering exempt from the registration requirements of the Securities Act. The 2024 Notes were 
issued at 100% of par and are governed by an indenture (the “2024 Indenture”) entered into on June 15, 2016 among WESCO 
Distribution, as issuer, WESCO International, as parent guarantor, and U.S. Bank National Association, as trustee. The 2024 Notes 
are unsecured senior obligations of WESCO Distribution and are guaranteed on a senior unsecured basis by WESCO International. 
The 2024 Notes bear interest at a rate of 5.375% per annum, payable semi-annually in arrears on June 15 and December 15 of 
each year, commencing on December 15, 2016. WESCO incurred costs totaling $6.0 million to issue the 2024 Notes, which are 
recorded as a reduction to the carrying value of the debt and are being amortized over the life of the note. The notes mature on 
June 15, 2024. The Company used the net proceeds to redeem its 2029 Debentures on September 15, 2016.

Under the terms of a registration rights agreement dated as of June 15, 2016 among WESCO Distribution, as the issuer, WESCO 
International, as parent guarantor, and Goldman, Sachs & Co., as representative of the initial purchasers of the 2024 Notes, WESCO 
Distribution and WESCO International agreed to register under the Securities Act notes having terms identical in all material 
respects to the 2024 Notes (the “2024 Exchange Notes”) and to make an offer to exchange the 2024 Exchange Notes for the 2024 
Notes. WESCO Distribution launched the exchange offer on December 28, 2016 and the exchange offer expired on January 31, 
2017. 

At any time on or after June 15, 2019, WESCO Distribution may redeem all or a part of the 2024 Notes. Between June 15, 
2019 and June 14, 2020, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 104.031% 
of the principal amount. Between June 15, 2020 and June 14, 2021, WESCO Distribution may redeem all or a part of the 2024 
Notes at a redemption price equal to 102.688% of the principal amount. Between June 15, 2021 and June 14, 2022, WESCO 
Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 101.344% of the principal amount. On and 
after June 15, 2022, WESCO Distribution may redeem all or a part of the 2024 Notes at a redemption price equal to 100% of the 
principal amount.    

The 2024 Indenture contains customary covenants and events of default. Upon a change of control, the holders of the 2024 
Notes have the right to require WESCO Distribution to repurchase all or any part of the 2024 Notes at a redemption price equal 
to 101% of the principal amount thereof, plus accrued and unpaid interest. 

6.0% Convertible Senior Debentures due 2029

On August 27, 2009, WESCO International completed an exchange offer pursuant to which it issued $345 million in aggregate 
principal amount of the 2029 Debentures. On September 15, 2016, the Company redeemed the 2029 Debentures. Holders of the 
2029 Debentures received cash totaling $344.8 million, which was equal to the principal amount of the then-outstanding debentures, 
in addition to accrued and unpaid interest. Holders who surrendered the 2029 Debentures for conversion received 18 shares of  
WESCO stock for each $1,000 principal amount of 2029 Debentures converted. In total, 6,267,688 shares were issued on the 
redemption date. The redemption resulted in a non-cash loss of $123.9 million, which included the write off of unamortized debt 
issuance costs.

WESCO separately accounted for the liability and equity components of its 2029 Debentures in a manner that reflected its non-
convertible debt borrowing rate. WESCO utilized an interest rate of 13.875% to reflect the non-convertible debt borrowing rate 
of its offering upon issuance, which was determined based on discussions with its financial institutions and a review of relevant 
market data, and resulted in a $181.2 million discount to the 2029 Debenture balance and a net increase in additional capital of 
$106.5 million. In addition, the financing costs incurred to issue the 2029 Debentures were allocated between the instrument's debt 
and equity components. WESCO amortized the debt discount and financing costs over the life of the instrument. For the years 
ended December 31, 2016 and 2015, non-cash interest expense for the amortization of the debt discount and debt issuance costs 
was $3.1 million and $4.2 million, respectively.

Covenant Compliance

WESCO was in compliance with all relevant covenants contained in its debt agreements as of December 31, 2017.

51

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth the aggregate principal repayment requirements for all indebtedness for the next five years and 

thereafter, as of December 31, 2017:

2018

2019

2020

2021

2022

Thereafter

Total payments on debt

Debt discount

Total debt

(In thousands)

$

$

35,299

85,246

392,239

500,000

—

350,000

1,362,784
(513)
1,362,271

WESCO’s credit agreements contain various restrictive covenants that, among other things, impose limitations on: (i) dividend 
payments  or  certain  other  restricted  payments  or  investments;  (ii) the  incurrence  of  additional  indebtedness  and  guarantees; 
(iii) creation of liens; (iv) mergers, consolidation or sales of substantially all of WESCO’s assets; (v) certain transactions among 
affiliates; (vi) payments by certain subsidiaries to WESCO, and (vii) capital expenditures. In addition, the Revolving Credit Facility 
and the Receivables Facility require WESCO to meet certain fixed charge coverage tests depending on availability or liquidity, 
respectively.

8. CAPITAL STOCK

Preferred Stock

There are 20 million shares of preferred stock authorized at a par value of $0.01 per share; there are no shares issued or 
outstanding. The Board of Directors has the authority, without further action by the stockholders, to issue all authorized preferred 
shares in one or more series and to fix the number of shares, designations, voting powers, preferences, optional and other special 
rights and the restrictions or qualifications thereof. The rights, preferences, privileges and powers of each series of preferred stock 
may differ with respect to dividend rates, liquidation values, voting rights, conversion rights, redemption provisions and other 
matters.

Common Stock

There are 210 million shares of common stock and 20 million shares of Class B common stock authorized at a par value of 
$0.01 per share. The Class B common stock is identical to the common stock, except for voting and conversion rights. The holders 
of Class B common stock have no voting rights. With certain exceptions, Class B common stock may be converted, at the option 
of the holder, into the same number of shares of common stock.

The terms of the Revolving Credit Facility and the Term Loan Facility provide certain limits on declaring or paying dividends, 
and repurchasing common stock. In addition, the indentures governing the 2021 Notes and 2024 Notes place limits on the Company's 
ability to pay dividends and repurchase common stock. At December 31, 2017 and 2016, no dividends had been declared and, 
therefore, no retained earnings were reserved for dividend payments.

9. INCOME TAXES

The Tax Cuts and Jobs Act of 2017 (the "TCJA”), enacted on December 22, 2017, provides a broad range of tax reform, 
including changes to the U.S. corporate tax rate, business-related exclusions, deductions and credits, as well as international tax 
provisions. Most notably, the TCJA permanently reduces the U.S. corporate income tax rate from 35% to 21%, effective January 
1, 2018, and imposes a one-time tax on the deemed repatriation of undistributed foreign earnings (the "transition tax"). The TCJA 
also introduces anti-base erosion provisions, including the global intangible low-taxed income ("GILTI") tax.

As a result of the reduction in the U.S. corporate income tax rate, the Company remeasured its U.S. deferred income tax balances 
as of December 31, 2017 and recorded a provisional deferred income tax benefit of $56.4 million for the year ended December 31, 
2017. The Company also recognized provisional current income tax expense for the transition tax under the TCJA of $82.8 million 
for the year ended December 31, 2017. After the utilization of foreign tax credit carryforwards of $17.8 million, a provisional 
liability of $65.0 million was accrued for the transition tax as of December 31, 2017 and is payable over a period of eight years.

52

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

As of December 31, 2017, the Company had not completed its accounting for certain income tax effects of the TCJA and the 
provisional amounts described above could change materially in future periods. Although the Company made reasonable estimates 
to determine the effect of the TCJA on its deferred income taxes, the Company must gather and analyze additional information to 
complete the related accounting. Similarly, the Company's accounting for the income tax effects of the transition tax is incomplete 
primarily due to the complexity of computing foreign earnings and measuring the portion of such earnings held in cash and cash 
equivalents, which is subject to a higher tax rate. Further regulatory guidance is expected to be issued regarding the implementation 
and interpretation of the TCJA provisions, which could affect the Company's analyses and ultimate conclusions. As described in 
Note 2, future adjustments (if any) will be recognized as discrete income tax expense or benefit in the period the adjustments are 
determined. The accounting for the income tax effects of the TCJA will be completed within the measurement period defined in 
Note 2.

The following table sets forth the components of income before income taxes by jurisdiction:

United States

Foreign

   Income before income taxes

Year Ended December 31,
2016

2015

2017

(In thousands)

$

$

180,957

71,483

252,440

$

$

80,881

50,670

131,551

$

$

288,881

15,029

303,910

The following table sets forth the components of the provision (benefit) for income taxes:

Current income taxes:
  Federal (1)

State

Foreign

Total current income taxes

Deferred income taxes:

Federal

State

Foreign

Total deferred income taxes

 Provision for income taxes

Year Ended December 31,
2016

2015

2017

(In thousands)

$

122,170

$

65,614

$

45,812

2,259

15,274

139,703

6,489

3,502

75,605

(48,060)
4,508
(6,844)
(50,396)
89,307

$

(42,835)
(2,938)
599
(45,174)
30,431

$

$

4,565

2,309

52,686

29,593

3,767

9,491

42,851

95,537

(1)  Income tax (expense) benefit related to stock-based awards and other equity instruments recorded directly to additional paid in capital totaled 
$(0.1) million and $1.6 million in 2016 and 2015, respectively. Due to the adoption of ASU 2016-09, as described in Note 2, there was no 
income tax (expense) benefit recorded to additional paid in capital for stock-based awards in 2017.

53

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth the reconciliation between the federal statutory income tax rate and the effective tax rate:

Federal statutory rate

State income taxes, net of federal income tax benefit

Deemed repatriation of undistributed foreign earnings

Deferred income tax remeasurement

Tax effect of intercompany financing

Foreign tax rate differences

Valuation allowance against deferred tax assets

Nondeductible expenses

Adjustment related to uncertain tax positions

Other

Effective tax rate

Year Ended December 31,
2016

2015

2017

35.0%

35.0%

35.0%

1.4

32.8
(22.4)
(10.5)
(1.3)
0.4
(0.1)
—

0.1

1.0

—

—
(19.9)
(0.4)
1.1

1.6

3.7

1.0

2.2

—

—
(8.8)
(1.1)
—

1.2

2.7

0.2

35.4%

23.1%

31.4%

As of December 31, 2017, WESCO’s foreign subsidiaries had undistributed earnings of approximately $884.0 million, of which 
$807.2  million  was  attributable  to  the  Company's  Canadian  operations. As  described  above, WESCO  recognized  provisional 
income tax expense of $82.8 million for the year ended December 31, 2017 resulting from the transition tax. Notwithstanding the 
effects of applying such provisions of the TCJA, WESCO continues to assert that the earnings of its foreign subsidiaries are 
indefinitely reinvested to fund growth in the foreign markets. However, as a result of the TCJA, the Company is reevaluating its 
intent and ability to repatriate foreign cash based upon the available liquidity and cash flow needs of its foreign subsidiaries and 
will disclose in future filings any change in its intention to repatriate undistributed foreign earnings and any resulting income tax 
impacts. Until the Company completes this reevaluation, it is not practicable to determine the amount of any unrecognized deferred 
income taxes on these undistributed foreign earnings.

The following table sets forth deferred tax assets and liabilities:

As of December 31,

2017

2016

(In thousands)

Assets

Liabilities

Assets

Liabilities

Accounts receivable

Inventories

Depreciation of property, buildings and equipment
Amortization of intangible assets (1)
Employee benefits
Stock-based compensation (2)
Advance payments

Foreign tax credits

Tax loss carryforwards

Other

Deferred income taxes before valuation allowance

Valuation allowance

Total deferred income taxes (1)

$

$

3,496

$

— $

3,484

$

—

—

—

14,835

16,341

8,456

—

19,128

11,850

74,106
(2,518)
71,588

3,181

13,283

159,107

—

—

—

—

—

8,672

184,243

—

$

184,243

$

—

—

—

18,577

23,844

22,056

15,698

18,440

7,175

109,274
(1,430)
107,844

—

4,001

11,487

237,015

—

—

—

—

—

7,783

260,286

—

$

260,286

(1)   As described in Note 2, the Consolidated Balance Sheet at December 31, 2016 was revised to correct certain financial statement line items, 

including deferred income taxes.

(2)   The Company does not expect the realizability of the deferred tax asset related to stock-based compensation to be materially impacted by 

the TCJA's expansion on the limitation of deductions for excessive employee compensation.

54

 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

As of December 31, 2017 and 2016, WESCO had deferred tax assets of $10.4 million and $10.0 million, respectively, related 
to Canadian net operating loss carryforwards. The Canadian net operating loss carryforwards expire beginning in 2029 through 
2037. Additionally, WESCO had deferred tax assets of $7.0 million and $6.2 million as of December 31, 2017 and 2016, respectively, 
related to non-Canadian foreign net operating loss carryforwards. These net operating loss carryforwards expire beginning in 2019, 
while some may be carried forward indefinitely. As of December 31, 2017 and 2016, WESCO had deferred tax assets of $3.1 
million and $3.2 million, respectively, related to state net operating loss carryforwards. These carryforwards expire beginning in 
2022 through 2036. The Company has determined, based upon an evaluation of all available evidence, that it "more-likely-than-
not" will utilize all of its net operating loss carryforwards before expiration other than those incurred in a non-Canadian foreign 
location. Accordingly, the Company recorded a full valuation allowance against the total deferred tax asset related to these non-
Canadian foreign net operating loss carryforwards of $2.5 million at December 31, 2017.

As of December 31, 2016, WESCO had deferred tax assets of $15.7 million related to foreign tax credit (“FTC”) carryforwards. 
As described above, the Company fully utilized these FTC carryforwards against the liability recorded for the transition tax imposed 
by the TCJA.

The Company is under examination by tax authorities in the U.S. and Canada and remains subject to examination until the 
applicable statutes of limitation expire. The statutes of limitation for the material jurisdictions in which the Company files income 
tax returns remain open as follows:

United States — Federal
United States — Material States
Canada

2004 and forward
2013 and forward
2004 and forward

The statutes of limitation with respect to the Company’s 2004 to 2007 U.S. federal income tax returns are open by waiver only 
in connection with the implementation of the Mutual Agreement Procedure (“MAP”) concluded in the fourth quarter of 2015 
between the Competent Authorities of the Internal Revenue Service (the "IRS") and the Canada Revenue Agency (the “CRA”) 
and the request for MAP assistance filed with the IRS and CRA in 2017 with respect to certain other 2004 to 2007 transfer pricing 
matters. The statutes of limitation with respect to the Company’s 2008 to 2011 U.S. federal income tax returns are open by waiver 
only in connection with the implementation of the Advance Pricing Agreement (“APA”) concluded in the fourth quarter of 2015 
between the IRS and CRA and certain other transfer pricing matters pending with the CRA. The statutes of limitation with respect 
to the Company’s 2012 and 2013 U.S. federal income tax returns are open by waiver only in connection with the IRS examination 
of the 2012 and 2013 years and the APA. 

The following table sets forth the reconciliation of gross unrecognized tax benefits:

2017

As of December 31,
2016

(In thousands)

2015

Beginning balance January 1

$

6,181

$

5,436

$

20,033

Additions based on tax positions related to the current year

Additions for tax positions of prior years
Reductions for tax positions of prior years

Settlements

Lapse in statute of limitations

Foreign currency exchange rate changes

Ending balance December 31

—

—
(155)
(1,025)
(755)
102

—

3,298
(21)
(1,921)
(728)
117

$

4,348

$

6,181

$

46

402
(378)
(9,638)
(1,497)
(3,532)
5,436

The total amount of unrecognized tax benefits were $4.3 million, $6.2 million, and $5.4 million as of December 31, 2017, 2016 
and  2015,  respectively. The  amount  of  unrecognized  tax  benefits  that  would  affect  the  effective  tax  rate  if  recognized  in  the 
consolidated financial statements was $1.7 million, $7.5 million, and $6.2 million, respectively.

It is reasonably possible that the amount of unrecognized tax benefits will decrease by approximately $3.0 million within the 
next twelve months due to the settlement of uncertain tax positions related to IRS audits or the expiration of statutes of limitation. 
Of this amount, approximately $0.3 million could impact the effective tax rate. 

The  Company  classifies  interest  related  to  unrecognized  tax  benefits  as  interest  income  or  expense.  Interest  expense  on 
unrecognized tax benefits was $0.1 million and $1.2 million for 2017 and 2016, respectively. In 2015, interest income of $8.7 
million was recognized as a result of the conclusion of the MAP and APA proceedings for the 2004 to 2014 tax years. As of 

55

 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

December 31, 2017 and 2016, WESCO had an accrued liability of $1.8 million and $2.2 million, respectively, for interest expense 
related to unrecognized tax benefits. The Company classifies penalties related to unrecognized tax benefits as part of income tax 
expense. Penalties recorded in income tax expense were immaterial in 2017, 2016, and 2015.

10. EARNINGS PER SHARE

Basic earnings per share is computed by dividing net income attributable to WESCO International by the weighted-average 
number of common shares outstanding during the periods. Diluted earnings per share is computed by dividing net income attributable 
to WESCO International by the weighted-average common shares and common share equivalents outstanding during the periods. 
The dilutive effect of common share equivalents is considered in the diluted earnings per share computation using the treasury 
stock method, which includes consideration of equity awards and contingently convertible debt.

The following tables set forth the details of basic and diluted earnings per share:

Year Ended December 31,
2016

2015

2017

(In thousands, except per share data)

Net income attributable to WESCO International

$

163,460

$

101,588

$

210,687

Weighted-average common shares outstanding used in computing basic

earnings per share

Common shares issuable upon exercise of dilutive equity awards

Common shares issuable from contingently convertible debentures (see

below for basis of calculation)

Weighted-average common shares outstanding and common share

equivalents used in computing diluted earnings per share

Earnings per share attributable to WESCO International

Basic

Diluted

47,849

512

—

44,116

543

3,674

43,433

626

6,314

48,361

48,333

50,373

$

$

3.42

3.38

$

$

2.30

2.10

$

$

4.85

4.18

The computation of diluted earnings per share attributable to WESCO International excluded equity awards of approximately 
1.3 million for the year ended December 31, 2017 and approximately 1.2 million for the years ended December 31, 2016 and 2015. 
These shares were excluded because their effect would have been antidilutive.

Because of WESCO’s previous obligation to settle the par value of the 2029 Debentures in cash upon conversion, WESCO 
was required to include shares underlying the 2029 Debentures in its diluted weighted-average shares outstanding when the average 
stock price per share for the period exceeded the conversion price of the debentures. Only the number of shares that would have 
been issuable under the treasury stock method of accounting for share dilution were included, which was based upon the amount 
by which the average stock price exceeded the conversion price. The conversion price of the 2029 Debentures was $28.87 and the 
maximum amount of share dilution was limited to 11,951,932 shares. Since the 2029 Debentures were redeemed on September 15, 
2016, there was no dilution from contingently convertible debentures for the year ended December 31, 2017. For the years ended 
December 31, 2016 and 2015, the effect of the 2029 Debentures on diluted earnings per share attributable to WESCO International 
was a decrease of $0.17 and $0.60, respectively.

In December 2014, the Company's Board of Directors authorized the repurchase of up to $300 million of the Company's 
common  stock  through  December  31,  2017.  As  of December 31,  2016,  WESCO  had  repurchased 2,468,576 shares  of  the 
Company's common stock for $150.0 million under this repurchase authorization. During the year ended December 31, 2017, the 
Company entered into accelerated stock repurchase agreements (the "ASR Transactions") with a certain financial institution to 
repurchase additional shares of its common stock. In exchange for up-front cash payments totaling $100.0 million, the Company 
received 1,778,537 shares. The total number of shares ultimately delivered under the ASR Transactions was determined by the 
average  of  the  volume-weighted-average  prices  of  the  Company's  common  stock  for  each  exchange  business  day  during  the 
respective  settlement  valuation  periods.  WESCO  funded  the  repurchases  with  borrowings  under  its  accounts  receivable 
securitization and revolving credit facilities. For purposes of computing earnings per share, share repurchases have been reflected 
as a reduction to common shares outstanding on the respective delivery dates.

56

 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

11. EMPLOYEE BENEFIT PLANS  

Defined Contribution Plans

A majority of WESCO’s employees are covered by defined contribution retirement savings plans for their services rendered 
subsequent to WESCO’s formation. WESCO also offers a deferred compensation plan for select individuals. For U.S. participants, 
WESCO matches contributions made by employees at an amount equal to 50% of participants' total monthly contributions up to 
a maximum of 6% of eligible compensation. For Canadian participants, WESCO makes contributions in amounts ranging from 
3% to 5% of participants' eligible compensation based on years of continuous service. WESCO may also make, subject to the 
Board  of  Directors'  approval,  a  discretionary  contribution  to  the  defined  contribution  retirement  savings  plan  covering  U.S. 
participants if certain predetermined profit levels are attained. A discretionary employer contribution charge of $10.0 million was 
incurred  in  2017.  In  2016  and  2015,  there  were  no  charges  for  discretionary  employer  contributions.  For  the  years  ended 
December 31, 2017, 2016 and 2015, WESCO incurred charges of $31.3 million, $18.5 million, and $18.1 million, respectively, 
for all such plans. Contributions are made in cash to employee retirement savings plan accounts. The deferred compensation plan 
is an unfunded plan. As of December 31, 2017 and 2016, the Company's obligation under the deferred compensation plan was 
$24.3 million and $21.7 million, respectively. Employees have the option to transfer balances allocated to their accounts in the 
defined contribution retirement savings plan and the deferred compensation plan into any of the available investment options.

Defined Benefit Plans

The Company sponsors a contributory defined benefit plan (the "Plan") covering substantially all Canadian employees of 
EECOL. The Plan provides retirement benefits based on earnings and credited service, and participants contribute 2% of their 
earnings to the Plan. Participants become 100% vested after two years of continuous service or, if earlier, at the participant's normal 
retirement age. 

The Company also sponsors a Supplemental Executive Retirement Plan (the "SERP"), which provides additional pension 
benefits to certain executives of EECOL based on earnings, and credited service. Effective January 1, 2013, the SERP was closed 
to new participants and existing participants became 100% vested. SERP participants continue to contribute 4% of their earnings 
to the Plan. 

57

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following tables present the changes in benefit obligations, plan assets and funded status for the pension plans and the 

components of net periodic pension cost.

(In thousands)

Accumulated Benefit Obligation (ABO) at December 31

Change in Projected Benefit Obligation (PBO)

PBO at beginning of year

Service cost

Interest cost

Participant contributions

Actuarial loss, including assumption changes

Benefits paid

Foreign currency exchange rate changes

PBO at end of year

Change in Plan Assets

Fair value of plan assets at beginning of year

Actual return on plan assets

Participant contributions

Employer contributions

Benefits paid

Foreign currency exchange rate changes

Fair value of plan assets at end of year

Funded Status

Amounts Recognized in the Consolidated Balance Sheets

Current liabilities

Noncurrent liabilities

Net amount recognized

Amounts Recognized in Accumulated Other Comprehensive Income (Loss)

Net actuarial loss (gain)

Total amount recognized, before tax effect

Year Ended December 31,

2017

2016

92,375

$

75,666

96,160

$

87,186

4,328

3,912

735

10,906
(3,005)
7,283

120,319

$

84,753

$

7,875

735

368
(3,005)
6,456

97,182

$

3,845

3,856

709

2,172
(4,404)
2,796

96,160

79,185

4,115

709

1,956
(4,404)
3,192

84,753

(23,137) $

(11,407)

(395) $

(22,742)
(23,137) $

(364)
(11,043)
(11,407)

2,508

2,508

$

$

(6,234)
(6,234)

$

$

$

$

$

$

$

$

$

$

58

 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Year Ended December 31,
2016

2015

2017

Components of Net Periodic Pension Cost

Service cost

Interest cost

Expected return on plan assets

Recognized actuarial gain

Net periodic pension cost

(In thousands)

$

4,328

$

3,845

$

4,537

3,912
(5,562)
(149)
2,529

$

3,856
(5,328)
(31)
2,342

$

4,012
(5,260)
(15)
3,274

$

Other Changes in Plan Assets and PBO Recognized in Accumulated

Other Comprehensive Income (Loss)

Net actuarial loss (gain)

Amortization of unrecognized net actuarial gain

Total amount recognized, before tax effect

Tax effect
Total amount recognized, after tax effect

Total recognized in net periodic pension cost and accumulated other

comprehensive income (loss)

$

$

$

8,593

$

2,756

$

149

8,742
(2,361)
6,381

$

31

2,787
(302)
2,485

$

(6,208)
15
(6,193)
1,661
(4,532)

8,910

$

4,827

$

(1,258)

The following weighted-average actuarial assumptions were used to determine benefit obligations at December 31:

Discount rate

Rate of compensation increase

2017

2016

Pension Plan

SERP

Pension Plan

SERP

3.5%

3.8%

3.5%

3.8%

3.9%

3.8%

3.9%

3.8%

The following weighted-average actuarial assumptions were used to determine net periodic pension costs at January 1:

Year Ended December 31,

2017

2016

2015

Pension 
Plan

SERP

Pension 
Plan

SERP

Pension 
Plan

SERP

Discount rate

Expected long-term return on

assets

Rate of compensation increase

3.9%

6.4%

3.8%

3.9%

n/a

3.8%

4.2%

6.4%

4.0%

4.2%

n/a

4.0%

4.1%

6.4%

4.0%

4.1%

n/a

4.0%

The following benefit payments, which reflect expected future service, are expected to be paid:

Years ending December 31

(In thousands)

2018

2019

2020

2021

2022

2023 to 2027

The Company expects to contribute approximately $0.4 million to the SERP in 2018.

59

$

3,092

3,131

3,215

3,382

3,488

21,776

 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The Plan's weighted asset allocations by asset category are as follows:

Asset Category

Pooled Funds:

Canadian equities

U.S. equities

Non-North American equities

Fixed income investments

Other

Total

December 31

2017

2016

11.5%

4.6%

20.8%

41.4%

21.7%

11.7%

4.6%

21.6%

43.4%

18.7%

100.0%

100.0%

The Plan's long-term overall objective is to maintain benefits at their current level without affecting the cost of maintaining 

the Plan, assuming that the demographic make-up of the group of members remains the same.  

The primary investment objective, in support of the overall objective, is to earn the highest rate of return possible for the Plan, 
while keeping risk at acceptable levels. The long-term return objective of the Plan is to achieve a minimum annualized rate of 
return in excess of the actuarial requirements. This translates into a required return of 3.0% above inflation, net of investment 
management fees. The return objective is consistent with the overall investment risk level that the Plan assumes in order to meet 
the pension obligations of the Plan. To achieve this long term investment objective, the Plan has adopted an asset mix that has a 
combination of primarily equity and fixed income investments. Risk is controlled by investing in a well-diversified portfolio of 
asset classes. A benchmark portfolio is established based on the expected returns for each asset class available. The investment of 
the Plan's assets in accordance with the benchmark portfolio should enable the Plan to not only attain, but also exceed the minimum 
overall objective. 

The following table presents the target asset mix based on market value for each investment category within which the investment 

managers must invest the Plan's assets. The asset mix is reviewed and rebalanced to target on an annual basis.

Asset Category

Canadian equities

Non-Canadian equities

Total equities

Fixed income investments

Other investments

Target %

12.5%

27.5%

40%

45%

15%

The Plan's assets are measured at fair value, which is defined as the price that would be received to sell an asset or paid to 
transfer a liability in an orderly transaction between market participants at the measurement date. Financial assets and liabilities 
are classified in the fair value hierarchy based on the lowest level of any input that is significant to the measurement of fair value. 
Investments for which fair value is measured using the net asset value (NAV) per share practical expedient are not classified in 
the fair value hierarchy. The following describes the valuation methodologies used to measure the fair value of the Plan's assets.

Pooled Equity Investments. These investments consist of the Plan's share of segregated funds that primarily invest in equity 

securities. The funds are valued at the net asset value of shares held in the underlying funds.

Pooled Fixed Income Investments. These investments consist of the Plan's share of a segregated fund that primarily invests 

in Canadian issued bonds and debentures and is valued at the net asset value of shares held in the underlying funds.

Other Investments. These investments consist of cash and cash equivalents, a money market fund and diversified growth 
funds. The diversified growth funds invest in a broad range of asset classes, including equities, bonds, infrastructure, property, 
commodities and absolute return strategies. These investments are valued at the net asset value of shares held in the underlying 
funds.

The  fair  value  methods  described  above  may  not  be  indicative  of  net  realizable  value  or  reflective  of  future  fair  values. 
Additionally, while the Company believes the valuation methods are appropriate and consistent with other market participants, 

60

 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a 
different fair value measurement at the reporting date.

The following tables set forth the fair value of the Plan's assets by asset category:

(In thousands)

Pooled Funds:

Canadian equities

U.S. equities

Non-North American equities

Fixed income investments

Other

Total investments

(In thousands)

Pooled Funds:

Canadian equities

U.S. equities

Non-North American equities

Fixed income investments

Other

Total investments

Level 1

Level 2

December 31, 2017
Level 3

NAV (1)

Total

$

— $

— $

— $

11,211

$

—

—

—

3,996

—

—

—

—

—

—

—

—

4,436

20,207

40,193

17,139

$

3,996

$

— $

— $

93,186

$

11,211

4,436

20,207

40,193

21,135

97,182

Level 1

Level 2

December 31, 2016
Level 3

NAV (1)

Total

$

$

— $

— $

— $

9,916

$

—

—

—

235

235

—

—

—

—

—

—

—

—

3,881

18,296

36,677

15,748

$

— $

— $

84,518

$

9,916

3,881

18,296

36,677

15,983

84,753

(1)   As described above, investments measured at fair value using the NAV per share practical expedient have not been classified in the fair value 

hierarchy. The amounts presented in the tables are intended to reconcile the fair value hierarchy to the total fair value of plan assets.

12. STOCK-BASED COMPENSATION

WESCO  sponsors  four  stock-based  compensation  plans.  The  1999  Long-Term  Incentive  Plan,  as  amended  and  restated 
(“LTIP”), was designed to be the successor plan to all prior plans. Any shares remaining reserved for future issuance under the 
prior plans are available for issuance under the LTIP. The LTIP and predecessor plans are administered by the Compensation 
Committee of the Board of Directors.

On May 31, 2017, the Company renewed and restated the LTIP, increasing the maximum number of shares of common stock 
that may be issued under the plan by 1.7 million shares to 3.4 million. Under the LTIP, the total number of shares of common stock 
authorized to be issued will be reduced by 1 share of common stock for every 1 share that is subject to a stock appreciation right 
granted, and 1.83 shares of common stock for every 1 share that is subject to an award other than a stock appreciation right granted 
on or after May 31, 2017. As of December 31, 2017, 3.6 million shares of common stock were reserved under the LTIP for future 
equity award grants. 

Except for the performance-based award, awards granted vest and become exercisable once criteria based on time is achieved. 
Performance-based awards vest based on market or performance conditions. All awards vest immediately in the event of a change 
in control. Each award terminates on the tenth anniversary of its grant date unless terminated sooner under certain conditions.

WESCO recognized $14.8 million, $12.5 million and $12.9 million of non-cash stock-based compensation expense, which is 
included in selling, general and administrative expenses, for the years ended December 31, 2017, 2016 and 2015, respectively. As 
of December 31, 2017, there was $18.7 million of total unrecognized compensation expense related to non-vested stock-based 
compensation arrangements for all awards previously made of which approximately $11.3 million is expected to be recognized 
in 2018, $6.6 million in 2019 and $0.8 million in 2020.

The total intrinsic value of awards exercised during the years ended December 31, 2017, 2016, and 2015 was $17.2 million, 
$13.0 million, and $15.8 million, respectively. The gross deferred tax benefit associated with the exercise of stock-based awards 
totaled $6.4 million, $4.9 million, and $5.7 million in 2017, 2016, and 2015, respectively.

61

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth a summary of stock-settled stock appreciation rights and related information for the years indicated:

2017

2016

2015

Weighted-
Average
Exercise
Price

Weighted-
Average
Remaining
Contractual
Life

Aggregate
Intrinsic
Value
(In 
thousands)

Awards

Beginning of year

2,439,487

$

Granted

Exercised

Canceled

455,807

(495,181)

(161,506)

End of year

2,238,607

52.62

71.21

42.19

66.06

57.75

Exercisable at end

of year

1,331,580

$

56.96

6.2

4.6

$

$

28,791

Weighted-
Average
Exercise
Price

54.47

42.63

41.54

63.71

52.62

Awards

2,567,021

$

709,999
(526,818)
(310,715)
2,439,487

Weighted-
Average
Exercise
Price

50.91

69.54

35.80

73.59

54.47

Awards

2,480,745

$

394,182
(232,542)
(75,364)
2,567,021

18,801

1,549,350

$

53.35

2,034,263

$

49.36

WESCO granted the following stock-settled stock appreciation rights at the following weighted-average assumptions:

Stock-settled stock appreciation rights granted
Risk free interest rate

Expected life (in years)

Expected volatility

2017
455,807
1.9%

5

29%

2016
709,999
1.2%

5

32%

2015
394,182
1.6%

5

32%

The weighted-average fair value per stock-settled stock appreciation right granted was $20.52, $12.88 and $21.68 for the years 

ended December 31, 2017, 2016 and 2015, respectively. 

The following table sets forth a summary of time-based restricted stock units and related information for the years ended 

December 31, 2017, 2016 and 2015:

2017

2016

2015

Weighted-
Average
Fair
Value

Awards

Unvested at beginning of year

257,096

$

Granted

Vested

Forfeited

100,993

(44,720)

(23,315)

Unvested at end of year

290,054

$

57.47

71.33

84.57

57.52

58.11

Weighted-
Average
Fair
Value

74.52

44.45

72.41

59.15

57.47

Awards

175,411

$

162,256
(60,015)
(20,556)
257,096

$

Weighted-
Average
Fair
Value

73.87

69.05

66.89

75.73

74.52

Awards

185,457

$

81,022
(76,387)
(14,681)
175,411

$

The  weighted-average  fair  value  per  restricted  stock  unit  granted  was  $71.33,  $44.45  and  $69.05  for  the  years  ended 

December 31, 2017, 2016 and 2015, respectively. 

62

 
 
 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth a summary of performance-based awards for the year ended December 31, 2017:

2017

2016

2015

Weighted-
Average
Fair
Value

Awards

Unvested at beginning of year

149,320

$

     Granted

     Vested

     Forfeited

39,978

—

(40,790)

Unvested at end of year

148,508

$

60.36

76.63

—

76.77

60.23

Weighted-
Average
Fair
Value

76.48

47.00

—

71.25

60.36

Awards

114,520

$

91,768

—
(56,968)
149,320

$

Weighted-
Average
Fair
Value

80.21

67.81

72.25

80.14

76.48

Awards

130,004

$

59,661
(38,869)
(36,276)
114,520

$

The weighted-average fair value per performance-based award granted was $76.63, $47.00 and $67.81 for the years ended 

December 31, 2017, 2016 and 2015, respectively.

The fair value of the performance shares based on total stockholder return granted during the year ended December 31, 2017, 

2016 and 2015 were estimated using the following weighted-average assumptions:

Grant date share price

WESCO expected volatility

Peer group median volatility

Risk-free interest rate

Correlation

Year ended December 31,

2017

2016

2015

$

71.65

$

42.44

$

69.54

29%

24%

1.5%

114%

26%

24%

0.9%

122%

27%

23%

1.1%

96%

The unvested performance-based awards in the table above include 74,254 shares in which vesting of the ultimate number of 
shares is dependent upon WESCO's total stockholder return in relation to the total stockholder return of a select group of peer 
companies over a three-year period. The fair value of these awards is determined using a Monte Carlo simulation model. These 
awards are accounted for as awards with market conditions; compensation cost is recognized over the service period, regardless 
of whether the market conditions are achieved and the awards ultimately vest.

Vesting of the remaining 74,254 shares of performance-based awards in the table above is dependent upon the three-year average 
growth rate of WESCO's net income. The fair value of these awards is based upon the grant-date closing price of WESCO's common 
stock.  These  awards  are  accounted  for  as  awards  with  performance  conditions;  compensation  cost  is  recognized  over  the 
performance period based upon WESCO's determination of whether it is probable that the performance targets will be achieved.

13. COMMITMENTS AND CONTINGENCIES

Future minimum rental payments required under operating leases, primarily for real property that have noncancelable lease 

terms in excess of one year as of December 31, 2017, are as follows:

Years ending December 31

2018

2019

2020

2021

2022
Thereafter

(In thousands)

$

65,510

55,378

44,036

33,498

23,904
49,150

Rental expense for the years ended December 31, 2017, 2016 and 2015 was $82.0 million, $76.7 million and $70.7 million, 

respectively.

63

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

From time to time, a number of lawsuits and claims have been or may be asserted against us relating to the conduct of its 
business, including routine litigation relating to commercial and employment matters. The outcome of any litigation cannot be 
predicted with certainty, and some lawsuits may be determined adversely to WESCO. However, management does not believe 
that the ultimate outcome of any such pending matters is likely to have a material adverse effect on WESCO's financial condition 
or liquidity, although the resolution in any fiscal period of one or more of these matters may have a material adverse effect on 
WESCO's results of operations for that period.

WESCO is subject to the laws and regulations of states and other jurisdictions concerning the identification, reporting and 
escheatment (the transfer of property to the state) of unclaimed or abandoned funds, and is subject to audit and examination for 
compliance  with  these  requirements.  The  State  of  Delaware  conducted  an  audit  concerning  the  identification,  reporting  and 
escheatment of unclaimed or abandoned property, and in December 2017, WESCO reached agreement in principle with the State 
of Delaware to resolve the audit. The settlement amount was not material to the Company’s financial condition or results of 
operations.

In October 2014, WESCO was notified that the New York County District Attorney’s Office was conducting an investigation 
involving minority and disadvantaged business contracting practices in the construction industry in New York City and that various 
contractors, minority and disadvantaged business firms, and their material suppliers, including the Company, were part of this 
investigation. The Company cooperated with the government investigation and, in November 2017, reached an agreement in 
principle for a civil settlement to resolve the Company’s involvement in the investigation. The settlement amount was not material 
to the Company’s financial condition or results of operations.

14. SEGMENTS AND RELATED INFORMATION

WESCO provides distribution of product and services through its four operating segments, which have been aggregated as 
one reportable segment. WESCO has approximately 230,000 unique product stock keeping units and markets more than 1,000,000
products for customers. There were no material amounts of sales or transfers among geographic areas and no material amounts of 
export sales.

WESCO attributes revenues from external customers to individual countries on the basis of the point of sale. The following 

table sets forth information about WESCO by geographic area:

Net Sales
Year Ended December 31,
2016

2017

2015

2017

Long-Lived Assets
December 31,
2016

2015

(In thousands)

United States

$ 5,775,988

75% $ 5,635,803

77% $ 5,665,962

75% $

95,851

$

123,465

$

157,570

Canada

Mexico

1,521,378

77,280

20%

1%

1,394,657

62,430

19%

1%

1,533,705

70,048

21%

1%

Subtotal North American

Operations

7,374,646

7,092,890

7,269,715

Other International

304,375

4%

243,127

3%

248,772

3%

56,591

262

152,704

3,741

60,372

227

63,088

332

184,064

220,990

4,583

5,369

Total

$ 7,679,021

$ 7,336,017

$ 7,518,487

$

156,445

$

188,647

$

226,359

The following table sets forth sales information about WESCO’s sales by product category:

(percentages based on total sales)

General Supplies

Wire, Cable and Conduit

Communications and Security

Electrical Distribution and Controls
Lighting and Sustainability

Automation, Controls and Motors

Year Ended December 31,
2016

40%

14%

15%

11%
12%

8%

2015

40%

15%

15%

11%
10%

9%

2017

40%

15%

15%

10%
12%

8%

64

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

15. CONDENSED CONSOLIDATING FINANCIAL INFORMATION

WESCO Distribution has outstanding $500 million in aggregate principal amount of 2021 Notes and $350 million in aggregate 
principal amount of 2024 Notes. The 2021 Notes and 2024 Notes are unsecured senior obligations of WESCO Distribution and 
are fully and unconditionally guaranteed on a senior unsecured basis by WESCO International.  

Condensed  consolidating  financial  information  for  WESCO  International,  WESCO  Distribution  and  the  non-guarantor 

subsidiaries is presented in the following tables.

Cash and cash equivalents

Trade accounts receivable, net
Inventories

Prepaid expenses and other current assets

Total current assets

Intercompany receivables, net

Property, buildings and equipment, net

Intangible assets, net

Goodwill

Investments in affiliates

Other assets

Total assets

Accounts payable

Short-term debt

Other current liabilities

Total current liabilities

Intercompany payables, net

Long-term debt

Other noncurrent liabilities

Condensed Consolidating Balance Sheet
December 31, 2017

(In thousands)

WESCO
International,
Inc.

WESCO
Distribution,
Inc.

Non-Guarantor
Subsidiaries

Consolidating
and
Eliminating
Entries

Consolidated

$

— $

50,602

$

67,351

$

— $

117,953

—
—

4,730

4,730

—

—

—

—

— 1,170,080
526,056

430,092

42,547

152,531

523,241

1,916,018

— 2,189,136

50,198

2,770

106,247

364,334

257,623

1,514,254

3,058,613

5,023,826

—

2,778

—

28,415

$ 3,063,343

$ 5,860,436

$ 6,118,404

— 1,170,080
—
956,148
(35,140)
(35,140)
(2,189,136)
—

2,408,849

156,445

164,668

—

—

367,104

— 1,771,877

(8,082,439)
—

31,193
$ (10,306,715) $ 4,735,468

—

$

— $

417,690

$

381,830

$

— $

799,520

—

—

—

—

80,039

497,729

939,784

1,249,352

—

3,820

934,033

120,709

34,075

162,475

578,380

—

379,228

140,566

—
(35,140)
(35,140)
(2,189,136)

34,075

207,374

1,040,969

—

— 1,313,261

265,095

—
(8,082,439)
—

2,119,739
(3,596)
$ (10,306,715) $ 4,735,468

Total WESCO International stockholders’ equity

2,119,739

3,058,613

Noncontrolling interests

—

—

Total liabilities and stockholders’ equity

$ 3,063,343

$ 5,860,436

5,023,826
(3,596)
$ 6,118,404

65

 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Condensed Consolidating Balance Sheet
December 31, 2016

(In thousands)

WESCO
International,
Inc.

WESCO
Distribution,
Inc.

Non-Guarantor
Subsidiaries

Consolidating
and
Eliminating
Entries

Consolidated

$

— $

41,552

$

68,579

$

Cash and cash equivalents

Trade accounts receivable, net

Inventories

Prepaid expenses and other current assets

Total current assets

Intercompany receivables, net

Property, buildings and equipment, net

Intangible assets, net

Goodwill

Investments in affiliates
Other assets

Total assets

Accounts payable

Short-term debt

Other current liabilities

Total current liabilities

Intercompany payables, net

Long-term debt

Other noncurrent liabilities

— 1,034,402

364,562

34,833

456,879

211,637

440,947

1,771,497

— 2,060,336

51,824

3,417

105,783

389,945

— $

110,131

— 1,034,402

—
(123,013)
(123,013)
(2,060,336)
—

—

821,441

137,104

2,103,078

—

157,607

393,362

—

—

13,647

13,647

—

—

—

—

257,623

1,473,327

— 1,730,950

3,538,476
—

4,028,502
23,846

$ 3,552,123

$ 4,806,159

$ 5,823,886

22,998

— (7,566,978)
—

—
46,844
$ (9,750,327) $ 4,431,841

$

— $

381,795

$

302,926

$

— $

684,721

—

—

—

1,572,486

—

12,737

—

120,299

502,094

487,850

983,449

55,898

20,920

170,872

494,718

—
(123,013)
(123,013)
— (2,060,336)

20,920

168,158

873,799

—

379,686

162,641

4,790,110
(3,269)
$ 5,823,886

— 1,363,135

231,276

—
(7,566,978)
—

1,966,900
(3,269)
$ (9,750,327) $ 4,431,841

Total WESCO International stockholders’ equity

1,966,900

2,776,868

Noncontrolling interests

—

—

Total liabilities and stockholders’ equity

$ 3,552,123

$ 4,806,159

66

 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Condensed Consolidating Statement of Income and Comprehensive
Income
Year ended December 31, 2017

(In thousands)

Net sales

WESCO
International,
Inc.

WESCO
Distribution,
Inc.

Non-Guarantor
Subsidiaries

$

— $ 3,370,088

$ 4,441,655

Cost of goods sold (excluding depreciation and

— 2,714,511

3,612,577

Consolidating
and
Eliminating
Entries

Consolidated
$ (132,722) $ 7,679,021
6,194,366

(132,722)

amortization)

Selling, general and administrative expenses

Depreciation and amortization

Results of affiliates’ operations

Interest expense (income), net

Provision for income taxes

Net income
Less: Net loss attributable to noncontrolling interests

—

—

160,587

—
(2,546)
163,133
—

555,503

18,442

168,782

94,313
(4,486)
160,587
—

Net income attributable to WESCO International

$

163,133

$

160,587

$

544,245

45,575

—
(25,863)
96,339

168,782
(327)
169,109

— 1,099,748

—
(329,369)
—

—
(329,369)
—

$ (329,369) $

64,017

—

68,450

89,307

163,133
(327)
163,460

Other comprehensive income (loss):

Foreign currency translation adjustments

Post retirement benefit plan adjustments

Comprehensive income attributable to WESCO

International

85,762
(6,381)

85,762
(6,381)

85,762
(6,381)

(171,524)
12,762

85,762
(6,381)

$

242,514

$

239,968

$

248,490

$ (488,131) $

242,841

Condensed Consolidating Statement of Income and Comprehensive
Income
Year ended December 31, 2016
(In thousands)

Net sales

WESCO
International,
Inc.

WESCO
Distribution,
Inc.

Non-Guarantor
Subsidiaries

$

— $ 3,306,265

$ 4,134,508

Cost of goods sold (excluding depreciation and

— 2,651,409

3,341,161

Consolidating
and
Eliminating
Entries

Consolidated
$ (104,756) $ 7,336,017
5,887,814

(104,756)

amortization)

Selling, general and administrative expenses

Depreciation and amortization

Results of affiliates’ operations

Interest expense (income), net

Loss on debt redemption

Provision for income taxes

Net income

Less: Net loss attributable to noncontrolling interests

61

—

240,571

17,555

123,933
(2,098)
101,120

—

477,437

20,226

155,814

87,824

—

8,263

216,920

—

Net income attributable to WESCO International

$

101,120

$

216,920

$

571,788

46,632

—
(28,804)
—

24,266

179,465
(468)
179,933

— 1,049,286

—
(396,385)
—

—

—
(396,385)
—

$ (396,385) $

66,858

—

76,575

123,933

30,431

101,120
(468)
101,588

Other comprehensive income (loss):
Foreign currency translation adjustments

Post retirement benefit plan adjustments

Comprehensive income attributable to WESCO

International

38,275
(2,485)

38,275
(2,485)

38,275
(2,485)

(76,550)
4,970

38,275
(2,485)

$

136,910

$

252,710

$

215,723

$ (467,965) $

137,378

67

 
 
 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Condensed Consolidating Statement of Income and Comprehensive
Income (Loss)
Year ended December 31, 2015

(In thousands)

Net sales

WESCO
International,
Inc.

WESCO
Distribution,
Inc.

Non-Guarantor
Subsidiaries

$

— $ 3,456,883

$ 4,177,383

Cost of goods sold (excluding depreciation and

— 2,784,413

3,356,192

Consolidating
and
Eliminating
Entries

Consolidated
$ (115,779) $ 7,518,487
6,024,826

(115,779)

amortization)

Selling, general and administrative expenses

Depreciation and amortization

Results of affiliates’ operations

Interest expense (income), net

Provision for income taxes

Net income
Less: Net loss attributable to noncontrolling interests

Net income attributable to WESCO International

Other comprehensive income (loss):

Foreign currency translation adjustments

Post retirement benefit plan adjustments

Comprehensive (loss) income attributable to

WESCO International

26

—

225,370

24,910
(7,939)
208,373
—

208,373

$

$

$

$

611,549

19,703

219,619

63,261
(6,929)
204,505
—

204,505

$

$

443,376

45,265

—
(18,339)
110,405

240,484
(2,314)
242,798

— 1,054,951

—
(444,989)
—

—

$ (444,989) $

—

64,968

—

69,832

95,537

208,373
(2,314)

$ (444,989) $

210,687

(225,795)
4,532

(225,795)
4,532

(225,795)
4,532

451,590
(9,064)

(225,795)

4,532

$

(12,890) $

(16,758) $

21,535

$

(2,463) $

(10,576)

68

 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Condensed Consolidating Statement of Cash Flows
Year ended December 31, 2017

Net cash (used in) provided by operating activities

Investing activities:

Capital expenditures

Proceeds from sale of assets

Dividends received from subsidiaries

Advances to subsidiaries and other

Net cash (used in) provided by investing activities

Financing activities:

Proceeds from issuance of debt

Repayments of debt
Equity activities

Dividends paid by subsidiaries

Other

Net cash provided by (used in) financing activities

Effect of exchange rate changes on cash and cash

equivalents

Net change in cash and cash equivalents

Cash and cash equivalents at the beginning of period

—

—

—

—

—

143,367

—
(106,792)
—

—

36,575

—

—

—

WESCO
International,
Inc.
(36,575) $

$

WESCO
Distribution,
Inc.

(In thousands)

Non-Guarantor
Subsidiaries

Consolidating
and 
Eliminating
Entries

Consolidated

101,826

$

83,871

$

— $

149,122

(13,215)
—

307,784
(383,686)
(89,117)

775,926
(785,392)
—

—

5,807
(3,659)

—

9,050

41,552

(8,292)
6,766

—

26,912

25,386

1,144,848
(952,740)
—
(307,784)
—
(115,676)

5,191
(1,228)
68,579

—

—
(307,784)
366,220

58,436

(383,686)
17,466
—

307,784

—
(58,436)

(21,507)
6,766

—

9,446
(5,295)

1,680,455
(1,720,666)
(106,792)
—

5,807
(141,196)

—

—

—

5,191

7,822

110,131

Cash and cash equivalents at the end of period

$

— $

50,602

$

67,351

$

— $

117,953

69

 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Condensed Consolidating Statement of Cash Flows
Year ended December 31, 2016
(In thousands)

WESCO
International,
Inc.

WESCO
Distribution,
Inc.

Non-Guarantor
Subsidiaries

Consolidating
and 
Eliminating
Entries

Consolidated

Net cash provided by (used in) operating activities

$

95,388

$ (243,476) $

448,323

$

— $

300,235

Investing activities:

Capital expenditures

Acquisition payments, net of cash acquired

Proceeds from sale of assets

Dividends received from subsidiaries

Advances to subsidiaries and other

Net cash used in investing activities

Financing activities:

Proceeds from issuance of debt
Repayments of debt

Equity activities

Dividends paid by subsidiaries

Other

Net cash (used in) provided by financing activities

Effect of exchange rate changes on cash and cash

equivalents

Net change in cash and cash equivalents

Cash and cash equivalents at the beginning of period

—

—

—

—

—

—

(12,482)
(50,890)
—

82,912
(297,259)
(277,719)

252,246
(344,804)
(2,830)
—

—
(95,388)

1,566,864
(1,030,520)
—

—
(12,560)
523,784

—

—

—

—

2,589

38,963

(5,475)
—

8,361

—
(337,344)
(334,458)

672,345
(752,401)
—
(82,912)
—
(162,968)

(3,634)
(52,737)
121,316

—

—

—
(82,912)
624,603

541,691

(17,957)
(50,890)
8,361

—
(10,000)
(70,486)

(297,259)
(327,344)
—

82,912

—
(541,691)

2,194,196
(2,455,069)
(2,830)
—
(12,560)
(276,263)

—

—

—

(3,634)
(50,148)
160,279

Cash and cash equivalents at the end of period

$

— $

41,552

$

68,579

$

— $

110,131

70

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Condensed Consolidating Statement of Cash Flows
Year ended December 31, 2015

(In thousands)

WESCO
International,
Inc.

WESCO
Distribution,
Inc.

Non-Guarantor
Subsidiaries

Consolidating
and 
Eliminating
Entries

Consolidated

Net cash provided by operating activities

$

3,531

$

214,037

$

65,481

$

— $

283,049

Investing activities:

Capital expenditures

Acquisition payments, net of cash acquired

Proceeds from sale of assets

Dividends received from subsidiaries

Advances to subsidiaries and other

Net cash (used in) provided by investing activities

—

—

—

—

—

—

(15,266)
(151,595)
—

114,101
(197,345)
(250,105)

Financing activities:

Proceeds from issuance of debt
Repayments of debt

Equity activities

Dividends paid by subsidiaries

Other

Net cash provided by (used in) financing activities

Effect of exchange rate changes on cash and cash

equivalents

Net change in cash and cash equivalents

Cash and cash equivalents at the beginning of period

150,705

1,224,596
— (1,175,056)
—

(154,236)
—

—
(3,531)

—

—

—

—
(7,017)
42,523

—

6,455

32,508

(6,392)
—

3,023

—

17,461

14,092

452,655
(379,578)
—
(114,101)
—
(41,024)

(13,044)
25,505

95,811

—

—

—
(114,101)
179,884

65,783

(197,345)
17,461

—

114,101

—
(65,783)

(21,658)
(151,595)
3,023

—

—
(170,230)

1,630,611
(1,537,173)
(154,236)
—
(7,017)
(67,815)

—

—

—

(13,044)
31,960

128,319

Cash and cash equivalents at the end of period

$

— $

38,963

$

121,316

$

— $

160,279

Revisions

As described in Note 2, the Consolidated Balance Sheet at December 31, 2016 has been revised to correct certain financial statement line items.

71

 
 
WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

16. SELECTED QUARTERLY FINANCIAL DATA (unaudited)

The following table sets forth selected quarterly financial data for the years ended December 31, 2017 and 2016:

2017

Net Sales

First
Quarter

Second
Quarter

Third
Quarter

Fourth
Quarter

$

1,772,591

$

1,909,624

$

2,000,159

$

1,996,647

Cost of goods sold (excluding depreciation and amortization)

1,422,573

1,543,510

1,614,814

1,613,469

Income from operations

Income before income taxes
Net income (1)

  Net income attributable to WESCO International (1)

67,089

50,368

37,800

37,729

83,105

66,289

49,535

49,510

89,250

71,939

53,576

53,675

81,446

63,844

22,222

22,546

Basic earnings per share attributable to WESCO                                                                                                                                                    

International (1) (2)

0.77

1.03

Diluted earnings per share attributable to WESCO                                                                                    

International (1) (3)

0.76

1.02

1.13

1.12

0.48

0.47

2016

Net Sales

$

1,775,961

$

1,911,582

$

1,855,212

$

1,793,262

Cost of goods sold (excluding depreciation and amortization)

1,420,793

1,532,113

1,490,173

1,444,735

Income from operations

Income (loss) before income taxes

Net income (loss)

69,508

50,679

34,534

87,987

68,535

49,852

92,555
(52,170)
(31,021)
(31,611)

82,009

64,507

47,755

  Net income (loss) attributable to WESCO International

36,053
Basic earnings (loss) per share attributable to WESCO                                                                                                                                                    

47,348

49,798

International (2) (4)

0.85

1.18

(0.73)

Diluted earnings (loss) per share attributable to WESCO                                                                                    

International (3) (4)

0.77

1.02

(0.73)

0.97

0.96

(1)  As described in Note 9, net income and net income attributable to WESCO International include provisional discrete income tax expense of 
$26.4  million  resulting  from  the  application  of  the TCJA,  which  affected  basic  and  diluted  earnings  per  share  attributable  to WESCO 
International in the fourth quarter of 2017.

(2)  Earnings per share (EPS) in each quarter is computed using the weighted-average number of shares outstanding during that quarter while 
EPS for the full year is computed by using the weighted-average number of shares outstanding during the year. Thus, the sum of the four 
quarters’ EPS may not equal the full-year EPS.

(3)  Diluted EPS in each quarter is computed using the weighted-average number of shares outstanding and common share equivalents during 
that quarter while Diluted EPS for the full year is computed by using the weighted-average number of shares outstanding and common share 
equivalents during the year. Thus, the sum of the four quarters’ Diluted EPS may not equal the full-year Diluted EPS.

(4)  On September 15, 2016, the Company completed the redemption of its 2029 Debentures. The redemption resulted in a non-cash charge 
of $123.9  million  and  consequently  a  net  loss  attributable  to  WESCO  International  for  the three months  ended September 30,  2016. 
Accordingly, dilutive shares were not included in the calculation of diluted loss per share for the three months ended September 30, 2016 
because  their  effect  was  antidilutive. As  described  in  Note  9,  net  income  and  net  income  attributable  to WESCO  International  include 
provisional discrete income tax expense of $26.4 million resulting from the application of the TCJA, which affected basic and diluted earnings 
per share attributable to WESCO International in the fourth quarter of 2017.

72

 
 
 
 
 
 
 
 
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal 
financial officer, we conducted an evaluation of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15
(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)). Based 
on this evaluation, our principal executive officer and our principal financial officer concluded that our disclosure controls and 
procedures and internal control over financial reporting were effective as of the end of the period covered by this report.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as such 
term is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Because of its inherent limitations, internal control over financial 
reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject 
to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies 
or  procedures  may  deteriorate.  Under  the  supervision  and  with  the  participation  of  our  management,  including  our  principal 
executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our internal control over 
financial reporting based on the updated framework in Internal Control — Integrated Framework (2013) (2013 Framework) issued 
by the Committee of Sponsoring Organizations of the Treadway Commission on May 14, 2013. Based on our evaluation under 
the 2013 Framework, our management concluded that our internal control over financial reporting was effective as of December 31, 
2017.

The effectiveness of the Company’s internal control over financial reporting as of December 31, 2017 has been audited by 
PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report, which is included herein.

Changes in Internal Control Over Financial Reporting

During the last fiscal quarter of 2017, there were no changes in the Company’s internal control over financial reporting identified 
in connection with management’s evaluation of the effectiveness of the Company’s internal control over financial reporting that 
have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Item 9B. Other Information.

None.

73

Item 10. Directors, Executive Officers and Corporate Governance.

PART III

The information set forth under the captions “Board of Directors” and “Executive Officers” in our definitive Proxy Statement 

for our 2018 Annual Meeting of Stockholders is incorporated herein by reference.

Codes of Business Ethics and Conduct

We have adopted a Code of Business Ethics and Conduct (“Code of Conduct”) that applies to our Directors, officers and 
employees  that  is  available  on  our  website  at  www.wesco.com  by  selecting  the  “Investors”  tab  followed  by  the  “Corporate 
Governance” heading. Any amendment or waiver of the Code of Conduct for our officers or Directors will be disclosed promptly 
at that location on our website.

We also have adopted a Senior Financial Executive Code of Principles for Senior Executives (“Senior Financial Executive 
Code”) that applies to our principal executive officer, principal financial officer, principal accounting officer or controller, or 
persons performing these functions. The Senior Financial Executive Code is also available at that same location on our website. 
We intend to timely disclose any amendment or waiver of the Senior Financial Executive Code on our website and will retain such 
information on our website as required by applicable SEC rules.

A copy of the Code of Conduct and/or Senior Financial Executive Code may also be obtained upon request by any stockholder, 
without charge, by writing to us at WESCO International, Inc., 225 West Station Square Drive, Suite 700, Pittsburgh, Pennsylvania 
15219, Attention: Corporate Secretary.

The information required by Item 10 that relates to our Directors and executive officers, including the Audit Committee and 
its financial expert, required by this item, is incorporated by reference from the information appearing under the captions “Corporate 
Governance,” “Board and Committee Meetings” and “Security Ownership” in our definitive Proxy Statement for our 2018 Annual 
Meeting of Stockholders that is to be filed with the SEC pursuant to the Exchange Act within 120 days of the end of our fiscal 
year on December 31, 2017.

Item 11. Executive Compensation.

The information set forth under the captions “Compensation Discussion and Analysis” and “Director Compensation” in our 

definitive Proxy Statement for our 2018 Annual Meeting of Stockholders is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

The information set forth under the caption “Security Ownership” in our definitive Proxy Statement for our 2018 Annual 

Meeting of Stockholders is incorporated herein by reference.

The following table provides information as of December 31, 2017 with respect to the shares of our common stock that may 

be issued under our existing equity compensation plans:

Plan Category

Equity compensation plans approved by security holders

Equity compensation plans not approved by security holders

Total

Number of securities
to be issued
upon exercise of
outstanding options,
warrants and rights

Weighted-average
exercise price of
outstanding options,
warrants and rights

Number of securities
remaining available
for future issuance
under equity
compensation plans

2,677,169

—

2,677,169

$

$

48.29

—

48.29

3,595,989

—

3,595,989

Item 13. Certain Relationships and Related Transactions, and Director Independence.

The information set forth under the captions “Transactions with Related Persons” and “Corporate Governance” in our definitive 

Proxy Statement for our 2018 Annual Meeting of Stockholders is incorporated herein by reference.

Item 14. Principal Accountant Fees and Services.

The  information  set  forth  under  the  caption  “Independent  Registered  Public Accounting  Firm  Fees  and  Services”  in  our 

definitive Proxy Statement for our 2018 Annual Meeting of Stockholders is incorporated herein by reference.

74

PART IV

Item 15. Exhibits and Financial Statement Schedule.

The financial statements, financial statement schedule and exhibits listed below are filed as part of this annual report:

(a) 

(1) Financial Statements

The list of financial statements required by this item is set forth in Item 8, “Financial Statements and Supplementary 
Data,” and is incorporated herein by reference.

(2) Financial Statement Schedule

Schedule II — Valuation and Qualifying Accounts

(b) 

Exhibits

Exhibit No.
3.1

Description of Exhibit
Restated Certificate of Incorporation of WESCO 
International, Inc.

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 3.1 to WESCO’s
Registration Statement on Form S-4 (No. 333-70404)

Certificate of Amendment of Certificate of 
Incorporation to Restated Certificate of Incorporation 
of WESCO International, Inc.

Incorporated by reference to Exhibit 3.1 to WESCO’s
Current Report on Form 8-K, dated May 29, 2014

Amended and Restated By-laws of WESCO 
International, Inc., effective as of May 29, 2014

Incorporated by reference to Exhibit 3.2 to WESCO’s
Current Report on Form 8-K, dated May 29, 2014

Indenture, dated November 26, 2013, among WESCO 
Distribution, Inc. and U.S. Bank National Association, 
as trustee

Incorporated by reference to Exhibit 4.1 to WESCO’s
Current Report on Form 8-K, dated November 27,
2013

Form of 5.375% Unrestricted Note due 2021

Indenture, dated June 15, 2016, among WESCO 
Distribution, Inc. and U.S. Bank National Association, 
as trustee

4.4

Form of 5.375% Unrestricted Note due 2024

1999 Deferred Compensation Plan for Non-Employee 
Directors, as amended and restated September 20, 2007

Form of Stock Appreciation Rights Agreement for 
Employees

Form of Stock Appreciation Rights Agreement for 
Non-Employee Directors

Incorporated by reference to Exhibit A-2 to Exhibit 4.1
to WESCO’s Current Report on Form 8-K, dated
November 27, 2013

Incorporated by reference to Exhibit 4.1 to WESCO’s 
Current Report on Form 8-K, dated June 15, 2016

Incorporated by reference to Exhibit A-2 to Exhibit 4.1
to WESCO’s Current Report on Form 8-K, dated June
15, 2016

Incorporated by reference to Exhibit 10.5 to WESCO's
Annual Report on Form 10-K for the year ended
December 31, 2011

Incorporated by reference to Exhibit 10.7 to WESCO's
Annual Report on Form 10-K for the year ended
December 31, 2011

Incorporated by reference to Exhibit 10.3 to WESCO’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2010

Amended and Restated Employment Agreement, dated 
as of September 1, 2009, between WESCO 
International Inc. and John J. Engel

Incorporated by reference to Exhibit 10.2 to WESCO’s
Quarterly Report on Form 10-Q for the quarter ended
September 30, 2009

Term Sheet, dated January 15, 2010, memorializing 
terms of employment of Diane Lazzaris by WESCO 
International, Inc.

Incorporated by reference to Exhibit 10.28 to
WESCO’s Annual Report on Form 10-K for the year
ended December 31, 2009

75

3.2

3.3

4.1

4.2

4.3

10.1

10.2

10.3

10.4

10.5

Exhibit No.
10.6

Description of Exhibit
Term Sheet, dated June 18, 2010, memorializing terms 
of employment of Kimberly Windrow by WESCO 
International, Inc.

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 10.1 to WESCO’s
Quarterly Report on Form 10-Q for the quarter ended
September 30, 2010

10.7

10.8

10.9

Term Loan agreement, dated as of December 12, 2012 
among WESCO Distribution, Inc., WDCC Enterprises 
Inc., WESCO International, Inc., Credit Suisse AG, 
Cayman Islands Branch, as Administrative Agent and 
Collateral Agent and the other Lenders and Agents 
party thereto

Incorporated by reference to Exhibit 10.1 to WESCO's
Current Report on Form 8-K, dated December 17,
2012

1999 Long-Term Incentive Plan, as restated effective 
as of May 30, 2013

Incorporated by reference to Appendix A to the Proxy 
Statement filed on Schedule 14A on April 16, 2013

First Amendment to Term Loan Agreement, dated as 
of November 19, 2013 among WESCO Distribution, 
Inc., WDCC Enterprises Inc., WESCO International, 
Inc., Credit Suisse AG, Cayman Islands Branch, as 
Administrative Agent and Collateral Agent and the 
other Lenders and Agents party thereto

Incorporated by reference to Exhibit 10.31 to
WESCO's Annual Report on Form 10-K for the year
ended December 31, 2013

10.10

Form of Stock Appreciation Rights Agreement for 
Employees

Incorporated by reference to Exhibit 10.33 to
WESCO's Annual Report on Form 10-K for the year
ended December 31, 2014

10.11

10.12

Second Amended and Restated Credit Agreement, 
dated as of September 24, 2015 among WESCO 
Distribution, Inc., the other U.S. Borrowers party 
thereto, WESCO Distribution Canada LP, the other 
Canadian Borrowers party thereto, WESCO 
International, Inc., the Lenders party thereto, 
JPMorgan Chase Bank, N.A., as Administrative Agent, 
and JPMorgan Chase Bank, N.A., Toronto Branch, as 
Canadian Administrative Agent

Fourth Amended and Restated Receivables Purchase 
Agreement, dated as of September 24, 2015, by and 
among WESCO Receivables Corp., WESCO 
Distribution, Inc., the various Purchaser Groups from 
time to time party thereto and PNC Bank, National 
Association, as Administrator

Incorporated by reference to Exhibit 10.1 to WESCO’s
Current Report on Form 8-K, dated September 24,
2015

Incorporated by reference to Exhibit 10.2 to WESCO’s
Current Report on Form 8-K, dated September 24,
2015

10.13

Form of Non-Employee Director Restricted Stock Unit 
Agreement

Incorporated by reference to Exhibit 10.1 to WESCO’s 
Quarterly Report on Form 10-Q, for the quarter ended 
March 31, 2016

10.14

10.15

10.16

10.17

Form of Notice of Performance Share Award Under 
the WESCO International, Inc. 1999 Long-Term 
Incentive Plan, as amended May 30, 2013

Incorporated by reference to Exhibit 10.23 to 
WESCO's Annual Report on Form 10-K for the year 
ended December 31, 2015

Form of Director and Officer Indemnification 
Agreement, entered among WESCO International, Inc. 
and certain of its executive officers and directors listed 
on a schedule attached thereto

Incorporated by reference to Exhibit 10.24 to 
WESCO's Annual Report on Form 10-K for the year 
ended December 31, 2015

First Amendment to Fourth Amended and Restated 
Receivables Purchase Agreement, dated as of 
December 18, 2015

Incorporated by reference to Exhibit 10.1 to WESCO’s
Quarterly Report on Form 10-Q, for the quarter ended
June 30, 2016

Second Amendment to Fourth Amended and Restated 
Receivables Purchase Agreement, dated as of April 19, 
2016

Incorporated by reference to Exhibit 10.2 to WESCO’s
Quarterly Report on Form 10-Q, for the quarter ended
June 30, 2016

76

Exhibit No.
10.18

Description of Exhibit
Third Amendment to Fourth Amended and Restated 
Receivables Purchase Agreement, dated as of May 10, 
2016

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 10.3 to WESCO’s
Quarterly Report on Form 10-Q, for the quarter ended
June 30, 2016

10.19

10.20

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

21.1

23.1

31.1

31.2

32.1

32.2

Fourth Amendment to Fourth Amended and Restated 
Receivables Purchase Agreement, dated as of May 27, 
2016

Incorporated by reference to Exhibit 10.4 to WESCO’s 
Quarterly Report on Form 10-Q, for the quarter ended 
June 30, 2016

Term Sheet, dated October 6, 2016, memorializing 
terms of employment of David S. Schulz by WESCO 
International, Inc.

Incorporated by reference to Exhibit 10.28 to
WESCO's annual report on Form 10-K, for the year
ended December 31, 2016

Fifth Amendment to Fourth Amended and Restated 
Receivables Purchase Agreement, dated as of 
November 8, 2017

Incorporated by reference to Exhibit 10.1 to WESCO's
Current Report on Form 8-K, dated November 8, 2017

Sixth Amendment to Fourth Amended and Restated 
Receivables Agreement, dated as of December 29, 
2017

Filed herewith

Form of Non-Employee Director Restricted Stock Unit 
Agreement

Filed herewith

Form of Restricted Stock Unit Agreement for 
Employees

Form of Stock Appreciation Rights Agreement for 
Employees

Form of Notice of Performance Share Award Under 
the WESCO International, Inc. 1999 Long-Term 
Incentive Plan, as amended May 31, 2017

Filed herewith

Filed herewith

Filed herewith

1999 Long-Term Incentive Plan, as restated effective 
as of May 31, 2017

Incorporated by reference to Appendix A to the Proxy
Statement filed on Schedule 14A on April 17, 2017

Term Sheet, dated December 4, 2015, memorializing 
terms of employment of Robert Minicozzi by WESCO 
International, Inc.

Filed herewith

Subsidiaries of WESCO International, Inc.

Consent of Independent Registered Public Accounting 
Firm

Filed herewith

Filed herewith

Certification of Chief Executive Officer pursuant to 
Rule 13a-14(a) promulgated under the Exchange Act

Filed herewith

Certification of Chief Financial Officer pursuant to 
Rule 13a-14(a) promulgated under the Exchange Act

Filed herewith

Certification of Chief Executive Officer pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002

Filed herewith

Certification of Chief Financial Officer pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002

Filed herewith

101

Interactive Data File

Filed herewith

The registrant hereby agrees to furnish supplementally to the Commission, upon request, a copy of any omitted schedule to any 
of the agreements contained herein.

Copies of exhibits may be retrieved electronically at the Securities and Exchange Commission’s home page at www.sec.gov. 
Exhibits will also be furnished without charge by writing to David S. Schulz, Senior Vice President and Chief Financial Officer, 
225 West Station Square Drive, Suite 700, Pittsburgh, Pennsylvania 15219. Requests may also be directed to (412) 454-2200.

77

Schedule II—Valuation and Qualifying Accounts

Allowance for doubtful accounts

Year ended December 31, 2017

Year ended December 31, 2016

Year ended December 31, 2015

Balance at
Beginning

of Period

Charged to

Expense

Charged to
Other
Accounts(1)

(In thousands)

Balance at

Deductions(2)

End of Period

$

22,007

22,587

21,084

8,466

5,888

6,099

—

21

1,305

(9,160) $
(6,489)
(5,901)

21,313

22,007

22,587

_________________________
(1)  Represents allowance for doubtful accounts in connection with certain acquisitions and divestitures.
(2)  Includes a reduction in the allowance for doubtful accounts due to write-off of accounts receivable.

78

Item 16. Form 10-K Summary.

Not applicable.

79

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused 

this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

WESCO INTERNATIONAL, INC.

By:   /s/ JOHN J. ENGEL  
Name:   John J. Engel 
Title:   Chairman, President and Chief Executive Officer 
Date:   February 21, 2018

WESCO INTERNATIONAL, INC.

By:   /s/ DAVID S. SCHULZ
Name:   David S. Schulz
Title:   Senior Vice President and Chief Financial Officer 
Date:   February 21, 2018

80

 
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following 

persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature

Title

Date

/s/ JOHN J. ENGEL  
John J. Engel

/s/ DAVID S. SCHULZ
David S. Schulz

Chairman, President and Chief Executive Officer 

February 21, 2018

(Principal Executive Officer)

Senior Vice President and Chief Financial Officer 

February 21, 2018

(Principal Financial and Accounting Officer)

/s/ SANDRA BEACH LIN

Director 

Sandra Beach Lin

/s/ MATTHEW J. ESPE

Matthew J. Espe

/s/ BOBBY J. GRIFFIN

Bobby J. Griffin

/s/ JOHN K. MORGAN

John K. Morgan

Director 

Director 

Director 

/s/ STEVEN A. RAYMUND

Director 

Steven A. Raymund

February 21, 2018

February 21, 2018

February 21, 2018

February 21, 2018

February 21, 2018

/s/ JAMES L. SINGLETON

Director 

February 21, 2018

James L. Singleton

/s/ LYNN M. UTTER

Lynn M. Utter

Director 

February 21, 2018

81

Exhibit 21.1

SUBSIDIARIES OF WESCO INTERNATIONAL, INC.

1502218 Alberta Ltd., an Alberta corporation

2077871 Alberta ULC, an Alberta unlimited liability company

Atlanta Electrical Distributors, LLC, a Delaware limited liability company

Calvert Wire & Cable Corporation, a Delaware corporation

Carlton-Bates Company, an Arkansas corporation

Carlton-Bates Company de Mexico S.A. de C.V., a Mexico variable capital company

Carlton-Bates Company of Texas GP, Inc., a Texas corporation

CBC LP Holdings, LLC, a Delaware limited liability company

CDW Holdco, LLC, a Delaware limited liability company

Communications Supply Corporation, a Connecticut corporation

Conney Investment Holdings, LLC, a Delaware limited liability company

Conney Safety Products, LLC, a Delaware limited liability company

Distribuidora Materiales Electricos E-Supply Limitada, a Chile limited liability company

EECOL Electric Bolivia Ltda., a Bolivia limited liability company

EECOL Electric Peru S.A.C., a Peru sociedad anonima cerrada

EECOL Electric ULC, an Alberta unlimited liability company

EECOL Industrial Electric Ecuador Limitada, an Ecuador limited liability company

EECOL Industrial Electric (SudAmerica) Limitada, a Chile limited liability company

EECOL Industrial Electric Limitada, a Chile limited liability company

EECOL Power S.A., a Chile closed stock corporation

EECOL Properties Corp., an Alberta corporation

Hazmasters, Inc., an Ontario corporation

Hi-Line Utility Supply Company, LLC, an Illinois limited liability company

Hill Country Electric Supply, L.P., a Texas limited partnership

Liberty Wire & Cable, Inc., a Delaware corporation

Needham Electric Supply, LLC, a Delaware limited liability company

Obras Y Servicios Sunpark S.A.C. (OS Sunpark), a Peru sociedad anonima cerrada

SASK Alta Holdings S.A., a Chile closely held stock corporation

Services Voice, Video and Data Distribution de Mexico, S. de R.L. de C.V., a Mexico limited liability company

Stone Eagle Electrical Supply GP Inc., an Alberta corporation

Stone Eagle Electrical Supply Limited Partnership, an Alberta limited partnership

TVC Communications, L.L.C., a Delaware limited liability company

TVC Espana Distribucion y Venta De Equipos, S.L., a Spain limited liability company

TVC International Holding, L.L.C., a Delaware limited liability company

TVC UK Holdings Limited, a United Kingdom limited company

Voice, Video and Data Distribution de Mexico, S. de R.L. de C.V., a Mexico limited liability company

WDC Holding Inc., a Delaware corporation

WDCC Enterprises Inc., an Alberta corporation

WDCH, LP, a Pennsylvania limited partnership

WDCH US LP, a Delaware limited partnership

WDI-Angola, LDA, an Angola company

WDINESCO B.V., a Netherlands private company with limited liability

WDINESCO C.V., a Netherlands limited partnership

WDINESCO II B.V., a Netherlands private company with limited liability

WDINESCO III B.V., a Netherlands private company with limited liability

WDINESCO II C.V., a Netherlands limited partnership

WDINESCO III C.V., a Netherlands limited partnership

WEAS Company, S. de R.L., a Mexico private limited company

WESCO (Suzhou) Trading Co., Ltd., a China limited liability company

WESCO Australia Pty Ltd, an Australian company

WESCO Canada I, LP, an Alberta limited partnership

WESCO Canada II, LP, an Alberta limited partnership

WESCO Canada GP Inc., an Ontario Corporation

WESCO Distribution Canada Co., a Nova Scotia unlimited liability company

WESCO Distribution Canada GP Inc., an Ontario Corporation

WESCO Distribution Canada LP, an Ontario limited partnership

WESCO Distribution de Mexico, S. de R.L., a Mexico private limited company

WESCO Distribution HK Limited, a Hong Kong limited private company

WESCO Distribution II ULC, a Nova Scotia unlimited liability company

WESCO Distribution III ULC, a Nova Scotia unlimited liability company

WESCO Distribution-International Limited, a United Kingdom limited company

WESCO Distribution Ireland Limited, an Ireland limited company

WESCO Distribution, Inc., a Delaware Corporation

WESCO Distribution NL B.V., a Netherlands private company with limited liability

WESCO Distribution Pte. Ltd., a Singapore limited private company

WESCO Enterprises, Inc., a Delaware corporation

WESCO Equity Corporation, a Delaware corporation

WESCO Holdings, LLC, a Delaware limited liability company

WESCO Integrated Supply, Inc., a Delaware corporation

WESCO Integrated Supply Polska Spolka z o.o., a Poland limited company

WESCO Nevada, Ltd., a Nevada corporation

WESCO Netherlands B.V., a Netherlands private company with limited liability

WESCO Nigeria, Inc., a Delaware corporation

WESCO Procurement Canada ULC, an Alberta unlimited liability company

WESCO Real Estate I, LLC, a Delaware limited liability company

WESCO Real Estate II, LLC, a Delaware limited liability company

WESCO Real Estate III, LLC, a Delaware limited liability company

WESCO Real Estate IV, LLC, a Delaware limited liability company

WESCO Receivables Corp., a Delaware corporation

WESCO TLD Holdings Co., Ltd., a Thailand limited private company

WND Nigeria Limited, a Nigeria corporation

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 23.1

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No's. 333-188979, 
333-188978, 333-81845, 333-172531, 333-91187, 333-81841, 333-81847, 333-81857 and 333-218541) of WESCO 
International, Inc. of our report dated February 21, 2018 relating to the financial statements, financial statement schedule and 
the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP
Pittsburgh, Pennsylvania
February 21, 2018 

Exhibit 31.1 
CERTIFICATION 

     I, John J. Engel, certify that: 

     1. I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2017, of WESCO International, 
Inc.; 

     2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material 
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not 
misleading with respect to the period covered by this report; 

     3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in 
all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods 
presented in this report; 

     4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and 
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as 
defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: 

     (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed 
under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is 
made known to us by others within those entities, particularly during the period in which this report is being prepared; 

     (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be 
designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the 
preparation of financial statements for external purposes in accordance with generally accepted accounting principles; 

     (c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our 
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report 
based on such evaluation; and 

     (d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the 
registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially 
affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 

     5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control 
over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons 
performing the equivalent functions): 

     (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting 
which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial 
information; and 

     (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the 
registrant's internal control over financial reporting. 

Date: February 21, 2018

By:   /s/ John J. Engel  

John J. Engel 

Chairman, President and Chief Executive Officer 

 
 
 
 
 
 
 
Exhibit 31.2 
CERTIFICATION 

     I, David S. Schulz, certify that: 

     1. I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2017, of WESCO International, 
Inc.; 

     2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material 
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not 
misleading with respect to the period covered by this report; 

     3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in 
all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods 
presented in this report; 

     4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and 
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as 
defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: 

     (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed 
under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is 
made known to us by others within those entities, particularly during the period in which this report is being prepared; 

     (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be 
designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the 
preparation of financial statements for external purposes in accordance with generally accepted accounting principles; 

     (c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our 
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report 
based on such evaluation; and 

     (d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the 
registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially 
affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 

     5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control 
over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons 
performing the equivalent functions): 

     (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting 
which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial 
information; and 

     (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the 
registrant's internal control over financial reporting. 

Date: February 21, 2018

By:   /s/ David S. Schulz

David S. Schulz
Senior Vice President and Chief Financial Officer 

 
 
 
 
 
 
 
Exhibit 32.1 

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

In connection with the Annual Report of WESCO International, Inc. (the “Company”) on Form 10-K for the fiscal year ended 
December 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, 
in the capacity and on the date indicated below, hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge: 

1. 

2. 

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of 
operation of the Company.  

Date: February 21, 2018

By:   /s/ John J. Engel  

John J. Engel 

Chairman, President and Chief Executive Officer 

 
 
 
 
 
 
 
Exhibit 32.2 

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

In connection with the Annual Report of WESCO International, Inc. (the “Company”) on Form 10-K for the fiscal year ended 
December 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, 
in the capacity and on the date indicated below, hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge: 

1. 

2. 

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of 
operation of the Company.  

Date: February 21, 2018

By:   /s/ David S. Schulz

David S. Schulz

Senior Vice President and Chief Financial Officer 

 
 
 
 
 
 
 
90   WESCO International, Inc.

Non-GAAP Reconciliations

(Dollars in millions, except for diluted EPS)

Adjusted EBITDA:   
Income from operations (EBIT) 
Litigation recovery  
Adjusted income from operations (Adjusted EBIT) 
Depreciation and amortization 
Adjusted EBITDA 

Adjusted net income attributable to  
     WESCO International, Inc.: 
Net income attributable to WESCO International, Inc. 
Litigation recovery, net of tax 
Loss on debt redemption, net of tax 
Income tax expense for the Tax Cuts and Jobs Act of 2017 (TCJA) 
Adjusted net income attributable 
     to WESCO International, Inc. 

Adjusted Diluted EPS: 
Diluted share count 
Adjusted Diluted EPS (1) 

Adjusted stockholders’ equity: 
Stockholders’ equity (2) 
Add: Loss on debt redemption, net of tax 
Add: Income tax expense for TCJA 
Adjusted stockholders’ equity 

2013 

2014 

2015 

2016 

2017

 481  
 (36) 
 445  
 68  
513  

 276  
 (22) 
 –    
 –    

 254  

466  
–    
 466  
 68  
 534  

 276  
 –    
 –    
 –    

 276  

374  
–    
 374  
 65  
 439  

 211  
 –    
 –    
–    

 211  

 332  
–   
332  
 67  
 399  

 102  
 –    
 82  
 –    

184  

 52.7  
 4.82  

 53.3  
 5.18  

 50.4  
4.18  

48.3  
 3.80  

 1,765  
 –    
 –    
 1,765  

 1,928  
 –    
 –    
 1,928  

 1,774  
 –    
 –    
1,774  

 1,964  
 82  
 –    
 2,046  

321 
 –   
321 
64 
 385 

164 
–   
 –   
 26 

190 

48.4 
3.93 

2,116 
 82 
26 
 2,224

(1)   2016 excludes the third quarter loss per diluted share on debt redemption of $1.70, net of tax, based on 48.7 million diluted shares.  2017 excludes the income tax expense related to the application of the TCJA. 

(2)   As described in Note 2 of the Notes to Consolidated Financial Statements in the Annual Report on Form 10-K for the year ended December 31, 2017, the Consolidated Balance Sheet at December 31, 2016 was 

revised to correct certain financial statement line items, including stockholders’ equity. 

 
 
 
 
 
 
 
 
 
 
 
  
  
 
  
 
  
 
  
 
 
 
 
  
  
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
  
  
 
 
  
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
Non-GAAP Reconciliations

(Dollars in millions, except percentages)

Free Cash Flow: 
Cash provided by operations 
Less: capital expenditures 
Add: non–recurring pension contribution 
Free cash flow 

Adjusted net income attributable 
     to WESCO International, Inc. 

Free cash flow as a % of adjusted net income 

Return on Invested Capital (ROIC): 
Adjusted income from operations 
Tax effect (year–end effective tax rate) (1) 
Tax effected adjusted income from operations 

Par debt   
December 31 of the prior year 
March 31 of the current year 
June 30 of the current year 
September 30 of the current year 
December 31 of the current year 
Average par debt 

Stockholders’ equity 
December 31 of the prior year (adjusted) (2) (3) 
Less: debt discount 
Stockholders’ equity, net of debt discount 

March 31 of the current year (adjusted) (2) (3) 
Less: debt discount 
Stockholders’ equity, net of debt discount 

June 30 of the current year (adjusted) (2) (3) 
Less: debt discount 
Stockholders’ equity, net of debt discount 

September 30 of the current year (adjusted) (2) (3) 
Less: debt discount 
Stockholders’ equity, net of debt discount 

December 31 of the current year (adjusted) (2) (3) 
Less: debt discount 
Stockholders’ equity, net of debt discount 

Average stockholders’ equity, net of debt discount 
Average par debt and stockholders’ equity 
ROIC 

(1)   Adjusted for the income tax impact of applying the TCJA in 2017. 

2017 Annual Report   |   A World of Solutions   91

2013 

2014 

2015 

2016 

2017

 315  
 (28) 
 21  
308  

254 

121% 

 445  
 121  
 324  

 1,919  
1,857  
 1,797  
 1,758  
 1,662  
1,799  

 1,576  
 184  
 1,392  

 1,614  
 183  
 1,431  

 1,639 
 181 
 1,458  

 1,739  
 180  
 1,559  

 1,765  
 175  
 1,590  

 1,486  
 3,285  
9.9% 

 251  
 (21) 
 –    
230  

 276  

84% 

 466  
 132  
 334  

 1,662  
 1,676  
 1,741  
1,689  
 1,586  
 1,671  

 1,765 
 175  
 1,590  

 1,774  
 174  
 1,600 

 1,890 
 173 
 1,717 

 1,909 
 172 
1,737  

1,928  
 170  
1,758 

1,680  
3,351 
10.0% 

283  
(22) 
 –    
 261  

 211  

125% 

374  
 117  
257  

 1,586  
 1,557  
1,653  
1,667  
1,665  
 1,626 

 1,928  
 170  
1,758  

1,837  
169  
 1,668  

 1,866  
 167  
 1,699  

 1,760  
 166  
 1,594  

 1,774  
 164  
 1,610  

 1,666  
 3,292  
7.8% 

300  
(18) 
 –    
 282  

 184  

154% 

 332  
 77  
255  

 1,665  
 1,621  
 1,589  
 1,474  
 1,403 
 1,550  

1,774  
 164  
1,610  

 1,893  
 163  
1,730  

1,943  
 162  
 1,781  

1,993  
 –    
1,993  

2,046  
 –    

2,046 

1,832  
3,382  
7.5% 

149 
(21)
 –   
 128 

190 

67%

 321 
80 
241 

 1,403 
 1,355 
1,375 
 1,424 
 1,363 
 1,384 

2,045 
 –   
 2,045 

 2,093 
–   
2,093 

2,131 
 –   
 2,131 

2,143 
 –   
2,143 

2,224 
 –   
 2,224 

 2,127 
 3,511 
6.9%

(2)   Adjusted for the impact of a litigation matter in 2013, loss on debt redemption in 2016 and income tax expense from the TCJA in 2017. 

(3) 

 Adjusted for the revision to the Consolidated Balance Sheet at December 31, 2016, as described in Note 2 of the Notes to Consolidated Financial Statements in the  
Annual Report on Form 10-K for the year ended December 31, 2017. 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
  
  
  
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
  
 
 
  
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
  
 
  
 
  
  
 
 
 
 
  
 
  
  
 
 
 
  
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
  
  
 
 
 
  
 
 
 
 
  
 
  
 
 
  
  
  
 
  
  
  
  
 
  
  
 
 
 
 
  
 
 
 
 
 
  
  
 
 
  
 
 
 
  
 
  
  
 
  
 
  
  
 
 
 
 
 
 
  
  
  
  
 
  
 
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
92   WESCO International, Inc.

CORPORATE INFORMATION

Corporate Headquarters

WESCO International, Inc. 
Suite 700 
225 West Station Square Drive 
Pittsburgh, PA 15219-1122 
Phone: 412-454-2200 
www.wesco.com

Investor Relations

For questions regarding WESCO, contact Investor Relations  
at investorrelations@wesco.com.  A copy of the Company’s  
Annual Report on Form 10-K or other financial information may  
be requested through our website (www.wesco.com) or  
by contacting Investor Relations.

Common Stock

WESCO International, Inc. is listed on the New York Stock Exchange 
under the ticker symbol WCC.

Annual Meeting

The Annual Meeting of Stockholders will be held on  
May 31, 2018, at 2:00 p.m., E.D.T., at:

Hyatt Regency Pittsburgh International Airport 
1111 Airport Boulevard 
Pittsburgh, PA 15231

Transfer Agent and Registrar

Computershare 
P.O. Box 505000 
Louisville, KY 40233 
Toll free: 877-264-3927 
TDD for Hearing Impaired: 800-231-5469 
Foreign Shareholders: 201-680-6578 
TDD Foreign Shareholders: 201-680-6610

Website address: 
www.computershare.com/investor

Independent Registered Public  
Accounting Firm

PricewaterhouseCoopers LLP 
Pittsburgh, PA

Certifications to the NYSE and the SEC

On June 15, 2017, the Company submitted its CEO Certification  
to the NYSE under NYSE Rule 303A.12(a).  Also, any CEO/CFO 
certifications required to be filed with the SEC, including the Section 
302 certifications, are filed by the Company as exhibits to its Annual 
Report on Form 10-K.

An online version of the Annual Report is available  
at www.wesco.com

CORPORATE GOVERNANCE

BOARD OF DIRECTORS
(left to right)

John K. Morgan
Former Chairman, President, 
and Chief Executive Officer
Zep, Inc.

John J. Engel
Chairman, President, and 
Chief Executive Officer
WESCO International, Inc.

Lynn M. Utter
Chief Executive Officer
First Source, LLC

Sandra Beach Lin
Former Chief Executive Officer
Calisolar, Inc. 

Bobby J. Griffin
Former President, 
International Operations  
Ryder System, Inc.

James L. Singleton 
Chairman and 
Chief Executive Officer 
Cürex Group Holdings, LLC

Steven A. Raymund
Former Chairman
Tech Data Corporation

Matthew J. Espe
Operating Partner 
Advent International

Term expires May 2018
Sandra Beach Lin
John J. Engel 
Matthew J. Espe
Bobby J. Griffin
John K. Morgan
Steven A. Raymund
James L. Singleton
Lynn M. Utter

EXECUTIVE OFFICERS
(as of December 31, 2017)

John J. Engel
Chairman, President, and  
Chief Executive Officer

Diane E. Lazzaris
Senior Vice President and 
General Counsel

Robert Minicozzi
Vice President and  
Chief Information Officer

David S. Schulz
Senior Vice President and  
Chief Financial Officer

Kimberly G. Windrow
Senior Vice President and  
Chief Human Resources Officer

WESCO International, Inc. 
Suite 700 
225 West Station Square Drive 
Pittsburgh, Pennsylvania 15219-1122 
Phone: 412-454-2200 
www.wesco.com

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