To Our Shareholders
I am proud to report that 2010 was another outstanding year for ManTech.
We grew our revenues by nearly 30 percent, including over 10 percent
organic growth; and we positioned the company for future success by
completing several strategic acquisitions and strengthening our balance
sheet. For the fi rst time in our history, our employee count exceeded 10,000.
Our 2010 performance and optimism
about the future stem from three
key growth drivers: our focus on U.S.
government priorities with particular
emphasis in mission-critical national
security programs; our success at
identifying and integrating strategic
acquisitions that expand our
competencies and are accretive to
earnings; and our ability to recruit top-
notch talent and continue to build a
management team that is second to
none in program execution. Centering
on these three priorities will continue to
generate value for our shareholders.
Mission-critical national security
programs
ManTech is honored to be a valued
partner to the U.S. government, as we
address continuing global security
challenges. Our country is now fi ghting
wars in Iraq and Afghanistan and we face
growing threats from China, North Korea
and Iran, as well as increased instability
along our southern border. The threat of
cyber attack on our government and our
critical resources looms ever larger, as our
dependence on the digital infrastructure
grows and our adversaries become more
sophisticated.
Our government customers will
increasingly focus their eff orts on their
core missions and look to industry for
the most effi cient support. ManTech has
always been trusted to provide cost-
eff ective and mission-critical solutions,
and that positioning will be crucial to
our future success. Key national security
markets where we are strengthening
our base and expanding our cyber
footprint will continue to get priority
funding, in particular cyber security;
command, control, communications,
computers, intelligence, surveillance and
reconnaissance (C4ISR); logistics and
sustainment services for the Warfi ghter;
counter-terrorism and protection of the
homeland; and sophisticated support
to the intelligence community – areas
where ManTech has established expertise
and deep skills. We continue to mine
a robust pipeline of highly-qualifi ed
employee candidates who have
expertise in intelligence and key defense
technologies.
Strategic acquisitions
We completed three signifi cant
acquisitions in 2010 that complement our
capabilities and are delivering excellent
fi nancial returns.
Sensor Technologies, Inc. (STI), a leading
provider of mission-critical systems
engineering and C4ISR solutions to the
U.S. Army, delivered more than $500
million in revenues compared to $340
million the previous year. STI’s prime
contract position on the S3 contract
vehicle is helping us expand our mission-
George JJJ Pedersen
George J. Pedersen
Chairman of the Board and CEO
ManTech International Corporation 2010 Annual Report
critical C4ISR support to the U.S. Army.
Several STI contracts enabled ManTech
to develop additional business from our
existing customer base.
With the addition of QinetiQ North
America’s Security and Intelligence
Solutions business, we now off er
comprehensive solutions for the full
range of security threats – from physical
through cyber. A key prime contract
with the U.S. Missile Defense Agency will
be valuable as we continue to build our
security capabilities.
MTCSC, Inc. off ers C4ISR systems
integration, cyber security and network
engineering solutions, making it an
excellent fi t. MTCSC is a premier provider
of integrated commercial-off -the-shelf
products that support the U.S. Marine
Corps’ C4ISR needs, and this gives us a
strong platform from which to expand
these services to other agencies in
response to accelerating demand.
We began fi scal year 2011 with a small,
but strategic, acquisition – TranTech, Inc.,
a provider of information technology,
networking and cyber security services.
TranTech provides ManTech a prime
position on Defense Information Systems
Agency (DISA) ENCORE II, a multiple-
award contract with a $12 billion ceiling
and performance period through 2018.
As DISA and the U.S. Cyber Command
seek to protect and secure defense
networks and information, we see a
substantial pipeline of opportunities
to provide a full range of innovative
information technology, networking and
cyber solutions.
Acquisitions remain an integral part of
our growth strategy. The issuance of $200
million of senior notes in April 2010 and
full availability under our $350 million
revolving credit facility enhance our
ability to complete additional accretive
acquisitions to bolster our core off erings
in high-end defense and intelligence
and create a larger, stronger and more
integrated ManTech.
Top-notch talent and program
execution
been up approximately 17 percent and 16
percent, respectively.
We continued to improve an already
stellar balance sheet and cash fl ow
levels. Cash fl ow from operating activities
for 2010 was $171 million, or 1.4 times
net income. This excellent conversion
ratio was the result of an effi cient and
disciplined cash management and
collections process. We closed the year
with $85 million in cash.
A future fi lled with promise
For 43 years, we have successfully
provided advanced technology for
our country’s mission-critical national
security programs. This has been and
will continue to be our hallmark. We are
targeting continued organic growth in
intelligence, global logistics, systems
engineering and technology, with
acquisitions centering on cyber security,
C4ISR, border security, and smart power.
Along with our mission success, our
fi nancial performance has distinguished
us as a leader in our peer group. Since
our public off ering in 2002, our revenues
and earnings per share have grown on
a compound annual basis of about 20
percent. Our balance sheet and credit
rating are as strong as ever, allowing us
to invest in organic growth and strategic
acquisitions. Our $4.9 billion backlog of
business represents a 30 percent increase
compared to the same time last year.
Our backlog and $2.8 billion of bookings
in 2010 give us confi dence in our target
of exceeding $3 billion in revenues this
year – and we remain on a steady path
to achieve our goal of $5 billion over the
next several years.
We instituted a new management
structure in 2010 with our three group
presidents – Lou Addeo, Terry Ryan and
Bill Varner – reporting directly to me
and assuming chief operating offi cer
responsibilities for their groups. Together
with our chief fi nancial offi cer, Kevin
Phillips, we form the senior executive
leadership team for the company. This
new organization has allowed us to
take ManTech to even greater levels of
performance by centering on growth
opportunities, fi nding cost effi ciencies,
and delivering fl awless program
execution for our customers.
A fi tting tribute to our fl awless program
execution was receiving the NASA
Goddard Space Flight Center Contractor
Excellence Award. The award recognized
our substantial contributions to NASA
Goddard’s mission and our commitment
to the philosophy of continuous
improvement. We were honored to
receive this award in 2010 – the third time
in the past 10 years. Our 22-year history
with this customer is a testament to the
passion and dedication of our staff . They
remain as committed as ever to operate
and maintain key technologies used
in space fl ight support, most notably
the Hubble Space Telescope. We also
received a number of less formal letters
of commendation from other customers
over the past year.
Rock-solid fi nancial performance
We have set aggressive growth goals and
plan to increase market share over the
next year. Our 2010 revenues were $2.6
billion, up 29 percent compared to 2009.
Our net income for 2010 was $125 million,
up 12 percent, with a diluted earnings
per share of $3.43 marking a 10 percent
increase over the prior year. Excluding the
impact of the increased interest expense
incurred in connection with the issuance
of $200 million in senior notes in April,
net income and diluted EPS would have
1
Who we are
ManTech International Corporation
is comprised of approximately 10,300
talented employees working in 49 states
and approximately 40 countries around
the world in support of our nation’s
national security mission. We adhere to
the simple, no-nonsense values on which
ManTech was founded more than four
decades ago, aligning squarely with the
mission objectives of our customers. As
our customer base continues to expand
and diversify, we continue to diversify
our workforce and solutions. Half our
employees have a military background,
and more than 70 percent hold a
government security clearance. As a
leading provider of innovative technology
services and solutions for the nation’s
defense, security, space, and intelligence
communities, we hold nearly 1,000 active
contracts with more than 40 diff erent
government agencies, including:
• All branches of the Armed Forces
• Departments of Defense, State and
Homeland Security
• Department of Justice and the Federal
Bureau of Investigation
• National Oceanic and Atmospheric
Administration
• Space and intelligence communities
• Other U.S. federal government
agencies
Our technology services and solutions
include:
• Command, control, computers,
communications, intelligence,
surveillance and reconnaissance
(C4ISR) lifecycle support
• Cyber security services (intrusion-
detection and monitoring; security
engineering; incident identifi cation
and response; vulnerability assessment
and penetration testing; cyber-threat
analysis; and specialized cyber training
services)
• Global logistics and sustainment
•
•
support
Intelligence/counter-intelligence
support
Information technology modernization
and sustainment
• Systems engineering and test and
evaluation
Integrated security solutions
•
• Network engineering solutions
• Space systems development and
operations
Financial Results
Results from Continuing Operations (in thousands, except EPS)
2006
2007
2008
2009
2010
Revenues
$1,137,178
$1,448,098
$1,870,879
$2,020,334
$2,604,038
Operating income
$90,650
$113,704
$153,358
$179,079
$215,140
Income from continuing operations
$55,596
$67,327
$90,292
$111,764
$125,096
Diluted earnings per share
$1.64
$1.95
$2.55
$3.11
$3.43
Balance Sheet Summary
Cash and cash equivalents
$41,510
$8,048
$4,375
$86,190
$84,829
Accounts receivable
$236,445
$337,467
$407,248
$399,239
$528,765
Working capital
$168,189
$68,409
$140,744
$276,087
$282,496
Total assets
Total debt
$613,252
$937,503
$1,021,712
$1,100,747
$1,590,477
$0
$165,000
$44,100
$0
$200,000
Total stockholders’ equity
$459,016
$551,305
$680,536
$817,465
$966,343
2
ManTech International Corporation 2010 Annual Report
2010 Honors and Awards
ManTech is a security and technology leader that continues to earn national, regional, and industry recognition.
• One of the 100 fastest-growing companies in the nation (Fortune® magazine)
• A top-performing public company CEO among companies of $1 billion or more (Washington Business Journal)
• The best defense-related acquisition of 2010 (Washington Technology)
• NASA Goddard Space Flight Center Contractor Excellence Award (large business service category)
• One of the top 10 military employers for fi ve consecutive years (G.I. Jobs magazine)
• One of the top 10 best employers for veterans (Military Times EDGE magazine)
• One of the largest employers in the Washington, D.C., area (Washington Business Journal)
CEO George J. Pedersen was named a 2011 Federal 100 winner by Federal Computer Week magazine, his second time to appear on the list.
Growing ManTech through Strategic Acquisition
Since our IPO in February 2002, ManTech has successfully acquired 17 businesses. Our most recent acquisitions strengthen our core off erings in
national security and homeland defense, augment our cyber security capability and diversify our off erings into U.S. federal civilian agencies.
• TranTech, Inc., a provider of information technology, networking and cyber security services to the federal government, was acquired
February 11, 2011.
• MTCSC, Inc., a leading provider of C4ISR systems integration, cyber security and network engineering solutions to U.S. government customers,
was acquired December 23, 2010.
• QinetiQ North America’s Security and Intelligence Solution Business, a provider of integrated security solutions to the Department of
Defense and the intelligence community, was acquired October 8, 2010.
• Sensor Technologies, Inc., a leading provider of mission-critical systems engineering and C4ISR services and solutions to the Department of
Defense, was acquired January 15, 2010.
Additional Financial Information
Stock Performance Graph
Comparison of 5-Year Cumulative Total Returns as of December 31, 2010
ManTech
S&P Midcap 400 Index
Russell 2000 Index
NASDAQ Composite
Peer Group
$200
$150
$100
$50
$0
$148.42
$138.83
$132.11
$124.45
$83.41
2005
2006
2007
2008
2009
2010
The adjoining stock performance graph compares ManTech
common stock to the Nasdaq Stock Market (U.S.) Index,
Standard & Poor’s MidCap 400 Index, the Russell 2000 Index
and our Peer Group Index.* The period measured is
December 31, 2005 to December 31, 2010. The graph
assumes an investment of $100 for each of the groups with
reinvestment of all dividends. ManTech has never declared a
cash dividend.
* Peer group consists of: CACI International Inc.; Dynamics Research
Corporation; NCI, Inc.; SAIC; and SRA International, Inc.
3
What we do for our Customers
4
ManTech International Corporation 2010 Annual Report
Mission and Cyber Support
We tackle some of the most challenging cyber security problems facing our nation, including identifying
and neutralizing external cyber attacks, managing security operations centers (SOCs), developing
robust insider threat detection programs, and creating enterprise vulnerability management
programs. Our services and solutions include:
Cyber Defense and Cyber Security
In today’s increasingly dangerous world,
intelligence gathering and information
sharing have become even more vital
functions.
communications; cyber security;
systems engineering; tactical biometrics;
counterterrorism analytics; application
development; systems operations and
maintenance; and other IT support.
ManTech off ers a full complement of
cyber technology services to help our
defense and intelligence customers
respond. These include computer
forensics, cyber threat analysis, computer
crime investigation, security operations
center management, specialized
information assurance training,
intelligence and counterintelligence
operations and analysis, language
translation and interpretation, and a host
of security and support services such as
secrecy architecture, program protection,
and classifi cation management.
ManTech’s 24/7 cyber security support
to the Federal Bureau of Investigation
(FBI) includes intrusion-detection
monitoring; security engineering; incident
identifi cation and response; vulnerability
assessment and penetration testing;
cyber-threat analysis; and specialized
cyber-training services. This best-in-class
example – our largest cyber security
operation center (SOC) award – is being
replicated for other federal agencies.
Added growth in our cyber defense
business includes SOC support at the
U.S. Department of Agriculture and the
Federal Deposit Insurance Corporation.
Expanded work with the FBI includes a
newly awarded Information Technology
Supplies and Support Services contract
for which ManTech will provide secured
Information Technology and
Intelligence Operations
Our information technology solutions
and mission support services enable
national intelligence agencies and other
classifi ed customers to assure continuous
operations, improve data gathering
and analysis, collaborate securely, and
protect program security. We provide
the full range of intelligence operations
technical solutions and support services,
including secure information sharing
and collaboration; multi-level, secure
network engineering; service-oriented
architectures; operations and analysis
support; and secrecy management and
program security architecture.
ManTech supports the information
technology and forensics mission of
the National Media Exploitation Center
(NMEC), the Center for Excellence for
document and media exploitation,
cyber, forensics, biometrics, and linguistic
support to the intelligence community
and the Warfi ghter. Our development
of cutting-edge document and media
exploitation tools has allowed us to
further grow this high-potential contract.
Our diverse set of services ranges from
program management and data center
operations to systems engineering and
architecture to forensic engineering.
5
What we do for our Customers
Biometrics: The New Frontier for Defense Technologies
• ManTech’s ability to deliver the latest technologies provides critical support to the nation’s law enforcement agencies.
We were chosen to run the technical research and development arm of the DOJ’s National Institute of Justice (NIJ),
the Sensor, Surveillance and Biometric Technologies Center of Excellence. Relying on our expertise in operational law
enforcement, tactical biometrics and technology assessment, we are testing, evaluating and introducing the best new
technologies to our nation’s law enforcers.
• Our support of the Defense Department’s Biometric Identifi cation System for Access is global and expansive, ranging
from base-access control in Iraq and Afghanistan to operation and maintenance of the Biometrics Fusion Center in
West Virginia. We provide software engineering, operations, hardware, software, telecommunications and training
to include electronic fi ngerprint transmission, cardholder verifi cation and development of training materials based
on real-world experience of the soldiers using the equipment. We also provide direct operational support to the
Warfi ghter and user maintenance for the Tactical Biometrics Systems deployed in Iraq, Afghanistan, Kuwait, Djibouti,
Germany, Qatar and Korea.
6
ManTech International Corporation 2010 Annual Report
Systems Engineering and Advanced Technology
Our disciplined systems engineering support relies on a proprietary toolset, the ManTech Enterprise
Framework, to guide us in integrating the full spectrum of project management, systems engineering
and acquisition practices necessary to effectively manage a project or system over its life cycle.
Our services and solutions include:
Systems Engineering
Testing and Evaluation
ManTech supports the entire system life
cycle, from requirements defi nition and
analysis through design and development,
test and evaluation, and operational
deployment. As a premier provider of
systems engineering services, our support
of large-scale system development and
acquisition programs spans government
and industry clients, to include:
• Support of current and future space
launch operations on behalf of the U.S.
Air Force Launch and Range Systems
Wing
For over 30 years, ManTech has provided
testing and evaluation services for the
Army, Air Force, Navy, NASA and others.
This involves the testing of complex,
mission-critical hardware and software
systems and spans a variety of program
needs:
• Technical, administrative and
operations support to the Defense
Information Systems Agency, Joint
Interoperability Test Command (JITC),
to certify most tactical and strategic
C4ISR systems
• Systems engineering, program
• Providing technology assessments,
sensor modeling, situational awareness
and test preparation and planning on
behalf of the DHS’ Domestic Nuclear
Detection Offi ce
• Testing for C4ISR, navigation and
sensor systems for reliability, availability
and maintainability, electromagnetic
interference/compatibility and security
for the U.S. Army Electronic Proving
Ground (Forts Huachuca, Hood, Bliss
and Lewis; Aberdeen and Yuma Proving
Grounds; White Sands Missile Range)
management support services, and
education- and training-related tasks for
the Department of Homeland Security’s
Secure Border Initiative Program Offi ce,
which is responsible for protecting
against and preventing terrorist attacks
and other transnational crimes
• Engineering, technical and program
management support for submarine
and surface ship silencing programs
for the Naval Surface Warfare Center
(Carderock Division)
• Technical and engineering services
for combat identifi cation and air-
traffi c control systems supporting the
U.S. Naval Air Warfare Center Aircraft
Division
• Program, engineering and technical
services for Naval Undersea Warfare
Center’s acoustic testing
7
What we do for our Customers
8
ManTech International Corporation 2010 Annual Report
Technical Services
We provide maintenance and sustainment, supply chain management, and infrastructure support for
communications; intelligence, surveillance and reconnaissance; and other systems. Our services and
solutions include:
Global Logistics
In deployed, isolated and remote
locations worldwide, ManTech provides
mission-critical logistics support. Key
services include warehousing; logistics
management; property management;
shipping and receiving; repair and
maintenance; unique system training
and curriculum support; resource
management and inventory training.
Our logistics work on behalf of the
military includes:
• Maintenance and repair of mine-
resistant, ambush-protected vehicles
(MRAP) and MRAP all-terrain vehicles
predominantly in Iraq and Afghanistan
on behalf of the U.S. Army
•
Integrated logistics support services for
the U.S. Army Sustainment Command
in the Pacifi c region, to include pre-
deployment training equipment,
theater-provided equipment and
supply support activity
Intelligence, Surveillance and
Reconnaissance Services
Mission-critical C4ISR solutions, a
particular stronghold for ManTech, have
been bolstered by the acquisitions of
Sensor Technologies, Inc. and MTCSC, Inc.
In work with the National Reconnaissance
Offi ce, Department of Defense, Missile
Defense Agency and all the military
services, ManTech develops, tests and
fi elds the ground, airborne and space
systems that fulfi ll today’s tactical ISR
requirements. Our expertise also includes
the rapidly growing fi eld of unmanned
systems. For nearly every major U.S.
confl ict since 1990 – including missions in
Kuwait, Afghanistan and Iraq – ManTech
engineers and technicians make certain
that intelligence and electronic warfare
systems and C4ISR equipment are in
good working order as part of our on-the-
ground support to the U.S. Army. Some
notable examples of our work include:
• Managerial, logistics, administrative
and business services for the Base
Expeditionary Target Surveillance
Systems – Combined in Iraq
• Field software and systems
engineering support to the U.S.
Army Communications-Electronics
Management Command’s Software
Engineering Center Field Support
Directorate in support of the Army’s
evolving tactical C4ISR eff orts
• Technical support services to augment
C4ISR required by multiple Defense
Department and other federal agencies
on behalf of the Space and Naval
Warfare Systems Command Center
Atlantic
• Continuous cell phone coverage for
operational forces in Afghanistan
9
Why Choose ManTech?
We believe ManTech is the most effi cient
provider of mission-critical services in
the federal government marketplace.
We have earned the trust and
confi dence of our customers, employees
and investors. This has translated into
a track record of customer retention
and growth, employee loyalty and
recognition, and shareholder value.
Customer-driven
Our primary customer is the U.S. federal
government. In today’s increasingly
dangerous world the need for
sophisticated intelligence gathering and
information sharing activities is greater
than ever. The dynamic threat America
faces – from shootings to car bombs to
simultaneous suicide attacks to in-fl ight
bombings of passenger aircraft – calls for
reliance on companies like ManTech to
help the intelligence, law enforcement
and defense communities execute
their mission.
Employee-centered
For more than 10,000 highly skilled
employees, ManTech is their employer
of choice. In 2010, we added over 2,000
new hires – a record number – and we
are proud that half of our new recruits are
military veterans. We target candidates
who have served in the military or
as civilian experts in the intelligence
community and Department of Defense,
as well as experts in the technology
disciplines. Our partnership with the U.S.
Army Reserve allows both organizations
to identify young people interested in
serving the nation and pursuing a career
in mission-critical technologies.
A robust employee referral program
helps us identify and recruit top-
quality candidates, and our market
competitive benefi ts and opportunities
for professional development and growth
continue to attract a stellar cadre of
applicants. ManTech attracts superior
professionals and emphasizes employee
10
ManTech International Corporation 2010 Annual Report
retention, and we have reduced our
voluntary attrition rate in each of the last
two years. We off er:
• Challenging assignments that support
our country and fulfi ll our clients’
mission-critical needs
• Job security, coupled with competitive
compensation and incentive plans
• Opportunities for professional growth
and development through ManTech
University, our in-house corporate
learning and professional development
arm
• A Career Mobility Program that helps
identify new career opportunities for
active employees
• Matched employee contributions
to charities that provide relief, and
engagement in events that promote
wellness and advance health
Investor-focused
As a premier provider of technology
and engineering services and solutions
to the federal government market, our
strategy centers on growing our business
strategically and profi tably. The pillars of
our strategy are:
• Expand within our national security
base through a holistic approach that
capitalizes on our global footprint and
existing customer base to cross-sell our
broad array of solutions
• Target high-growth segments of the
market, in particular cyber security,
information assurance and C4ISR
lifecycle support, and fast growing
areas such as smart power and border
security
• Leverage our competitive
advantages, including our experience
on mission-critical technology
solutions, our global presence and the
reputation ManTech has earned as a
trusted partner to the intelligence and
defense communities
• Pursue strategic acquisitions that
broaden our domain expertise and
service off erings, with particular
focus on building our core off erings
in national security and homeland
defense; augmenting our cyber
security capability; and diversifying into
U.S. federal civilian agencies
• Maintain our relentless focus
on effi ciency by off ering a strong
value proposition to our customers
that identifi es ManTech as a cost-
competitive provider that is well-
positioned in the marketplace
• Attract and retain highly dedicated
and cleared personnel to build the
key managers and technical staff
needed to meet our growth objectives
11
How we support the community
Community involvement is a mainstay
of our corporate culture, and our
employees are committed to making
a real diff erence in the communities in
which we operate.
Our team members at all levels select
and participate in charitable activities
they care deeply about. In partnership
with CharityWorks, a major philanthropic
organization in the Washington, D.C.
metropolitan area, ManTech participates
in combined giving campaigns in which
employees donations are matched by the
company and its leadership.
Given our legacy with the national
defense agencies, much of our
philanthropic giving and volunteerism
aims to support the military men and
women who serve our country and their
families. We support the Injured Marine
Semper Fi Fund, a group dedicated
to providing aid to those injured in
the line of duty and their families by
linking them to health, employment,
childcare, housing, and education and
training services. In 2010, employees
gave $25,000 and ManTech contributed
$75,000, making our total donation
$100,000 to this worthy group.
In support of the CIA Offi cers Memorial
Foundation, ManTech contributed to the
fund for the children and spouses of CIA
offi cers killed in action or who have died
on active duty. ManTech also provides
support to the Special Operations Warrior
Foundation (SOWF) to advance its eff orts
to provide a college education to every
child with a parent who died during an
operational or training mission for the
Army, Navy, Air Force or Marine Corps
Special Operations. This also includes
the surviving children of soldiers who
died fi ghting our nation’s war against
terrorism, “Operation Enduring Freedom,”
in Afghanistan and the Philippines, as well
12
ManTech International Corporation 2010 Annual Report
as “Operation Iraqi Freedom.”
ManTech’s support of the “Special
Guests” program of the Virginia Chamber
Orchestra helps make it possible for
wounded warriors and their families
to attend complimentary orchestra
performances and dinner during the
concert season. For wounded warriors
unable to leave the hospital to attend a
concert, the Virginia Chamber Orchestra
performs at the Walter Reed Army
Medical Center in Washington, D.C.
Our support of education is broad-based.
Our aim is to strengthen the pipeline
and make our local communities a better
place. A sampling of our regional eff orts
includes:
• A partnership with the Northern
Virginia Urban League to sponsor
a high school student with a paid
internship at ManTech and a partial
college scholarship
• Supplemental academic instruction,
tutoring, homework help, test
preparation, life skills training and
cultural enrichment activities at the
Washington, D.C.-based The Fishing
School
• A partnership with the Ivymount
School, in which we host student
interns at our corporate headquarters
as part of the school’s “Transition-to-
Work Program for Special Students”
• Promotion of early literacy by providing
books to ill or hospitalized children
through Reach Out and Read, with
ManTech student interns collecting
more than 900 children’s books for the
“Summer of a Million Books” campaign
book drive
13
Commitment to Corporate Governance
14
ManTech International Corporation 2010 Annual Report
Investor confi dence in ManTech is of paramount importance to us, and our corporate
governance policies provide a framework for the effi cient operation of our company,
consistent with the best interests of our stockholders and applicable legal and
regulatory requirements.
ManTech has a system of controls and procedures designed to ensure the integrity and accuracy of our
fi nancial results. At ManTech, we have always been diligent in complying with our established fi nancial
accounting policies (consistent with GAAP) and in reporting our results with objectivity and the highest
degree of integrity. We are committed to providing fi nancial information that is transparent, timely,
complete, relevant and accurate.
We are also committed to rigorously and diligently exercising our oversight responsibilities throughout the
company, managing our aff airs consistent with the highest principles of business ethics, and meeting or
exceeding the corporate governance requirements of the SEC and NASDAQ. Some of the steps we have
taken to fulfi ll this commitment include:
• A majority of our Board members are independent of ManTech and its management
• Our key Board committees – the Audit Committee, the Compensation Committee and the
Nominating and Corporate Governance Committee – are comprised solely of independent directors
• Our independent directors meet regularly in executive session, without management present
• The charters of our key Board committees clearly establish their respective roles and responsibilities
and are publicly available
• Our Nominating and Corporate Governance Committee has established a formal policy regarding
the recommendation of director candidates by our stockholders, a copy of which is available on our
Website
• We have a code of business conduct and ethics that is monitored by our Corporate Compliance
Department, a copy of which is available on our Website
• We have an ethics offi ce with a hotline available to all of our employees, and our Audit Committee
has procedures in place for the anonymous submission of employee complaints about accounting,
internal control or auditing matters
We are devoted to ensuring that the high standards that we have established are consistently maintained.
Our culture demands integrity and an unyielding commitment to strong internal practices and policies.
We have the highest confi dence in our fi nancial reporting, our underlying system of internal controls, and
our people. We thank you for the confi dence you have placed in us.
George JJJ Pedersen
George J. Pedersen
Chairman of the Board and CEO
15
Our Leadership Team
Management Team
Left to Right
Louis M. Addeo – President and Chief Operating Offi cer,
ManTech Technical Services Group
Kevin M. Phillips – Executive Vice President and Chief Financial
Offi cer, ManTech International Corporation
George J. Pedersen – Chairman of the Board and Chief
Executive Offi cer, ManTech International Corporation
Terry M. Ryan – President and Chief Operating Offi cer,
ManTech Systems Engineering and Advanced Technology Group
L. William Varner – President and Chief Operating Offi cer,
ManTech Mission, Cyber and Technology Solutions Group
Board of Directors
Top Row, Left to Right
Bottom Row, Left to Right
George J. Pedersen – Chairman of the Board and Chief Executive Offi cer
Ambassador Richard L. Armitage – Former Deputy Secretary of State; Former
Assistant Secretary of Defense; Former Presidential Special Envoy during the
Gulf War
Walter R. Fatzinger, Jr. – Director, Chevy Chase Trust Company and Director, ASB
Capital Management, Inc.
Admiral David E. Jeremiah – U.S. Navy (Ret.) – Former Vice Chairman of the Joint
Chiefs of Staff
Mary K. Bush – Founder and President, Bush International; Former Managing
Director, Federal Housing Finance Board
Richard J. Kerr – Former Deputy Director, Central Intelligence Agency and
CIA Offi cer
Barry G. Campbell – Former Chairman and Chief Executive Offi cer, Tracor Systems
Technology, Inc.
Lieutenant General Kenneth A. Minihan, – USAF (Ret.) – Managing Director of
the Homeland Security Fund for Paladin Capital Group; Former Director, National
Security Agency; Former Director, Defense Intelligence Agency
Stephen W. Porter – Senior Counsel, Arnold and Porter
16
ManTech International Corporation 2010 Annual Report
Corporation Information
Corporate Headquarters
ManTech International Corporation
12015 Lee Jackson Highway
Suite 800
Fairfax, VA 22033-3300
Main: (703) 218-6000
Fax: (703) 218-8296
Website
www.mantech.com
Employment
It is ManTech’s policy to recruit, hire, employ,
train and promote persons in all job
classifi cations without regard to race, color,
religion, sex, age, national origin, disability or
any other characteristics protected by law.
Shareholder Information
Transfer Agent
Stockholders may obtain information with respect to share position, transfer requirements, address
changes, lost stock certifi cates and duplicate mailings by writing or telephoning:
American Stock Transfer & Trust Co.
6201 15th Avenue, Brooklyn, NY 11219
Attn: Shareholder Services
800-937-5449 or 718-921-8124 • www.amstock.com
Annual Meeting
ManTech’s Annual Meeting will be held on Thursday, May 12, 2011, 11:00 am ET,
at the Fair Lakes Hyatt, Fairfax, VA
Class A Common Stock
Stock symbol: MANT
Listed: NASDAQ National Market
Independent Auditors
Deloitte & Touche LLP
McLean, VA
Investor Communications
Investors seeking the Form 10-K and additional information about the Company may call
703-218-6000, write to Investors Relations at our corporate headquarters, or send an email to
investor@mantech.com. ManTech’s earnings announcements, news releases, SEC fi lings and
other investor information are available in the Investors section of our Website.
Forward-Looking Statement
This summary annual report contains forward-looking statements that involve substantial risks and uncertainties, many of which are outside of our control.
You can identify these forward-looking statements by the use of words such as “may,” “will,” “intends,” “should,” “expects,” “plans,” “projects,” “anticipates,” “believes,”
“estimates,” “predicts,” “potential,” “continue,” or “opportunity,” or the negative of these terms or words of similar import. You should read our forward looking
statements carefully; because they discuss our future expectations, make projections of our future results of operations or fi nancial condition, or state other
forward-looking information.
Although forward-looking statements in this summary annual report refl ect the good faith judgment of management, such statements can only be based
on facts and circumstances currently known to us. Consequently, these forward-looking statements are inherently subject to risks and uncertainties; and
actual results and outcomes may diff er materially from the results and outcomes we anticipate. Factors that could cause actual results to diff er materially from
the results we anticipate include, but are not limited to the following: adverse changes in U.S. government spending priorities; failure to retain existing U.S.
government contracts, win new contracts or win recompetes; adverse changes in future levels of expenditures for programs we support caused by budgetary
pressures facing the federal government; risks associated with complex U.S. government procurement laws and regulations; adverse results of U.S. government
audits of our government contracts; risk of contract performance, modifi cation, or termination; failure to obtain option awards, task orders, or funding under
contracts; adverse changes in our mix of contract types; risks of fi nancing, such as increases in interest rates and restrictions imposed by our outstanding
indebtedness, including the ability to meet fi nancial covenants and risks related to an inability to obtain new or additional fi nancing; failure to successfully
integrate recently acquired companies or businesses into our operations or to realize any accretive or synergistic eff ects from such acquisitions; failure to
identify, execute or eff ectively integrate future acquisitions; and competition. These and other risk factors are more fully discussed in the section entitled “Risk
Factors” in ManTech’s Annual Report on Form 10-K fi led with the Securities and Exchange Commission on February 25, 2011, Item 1A of Part II of our Quarterly
Reports on Form 10-Q and, from time to time, in ManTech’s other fi lings with the Securities and Exchange Commission.
We urge you not to place undue reliance on these forward-looking statements, which speak only as of the date of this summary annual report. We undertake
no obligation to update any of the forward-looking statements made herein, whether as a result of new information, subsequent events or circumstances,
changes in expectations, or otherwise. We also suggest that you carefully review and consider the various disclosures made in our Annual Report on Form 10-K
and other fi lings with the Securities and Exchange Commission that attempt to advise interested parties of the risks and factors that may aff ect our business,
fi nancial condition, results of operations, and prospects.
17