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ManTech International

mant · NASDAQ Technology
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Ticker mant
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Sector Technology
Industry Software - Application
Employees 5001-10,000
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FY2008 Annual Report · ManTech International
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ManTech at a Glance

•  Leading provider of innovative technologies and solutions focused on mission-critical national security programs for the U.S. Intelligence Community; the 

Departments of Defense, State, Homeland Security and Justice; Space Community; and other federal government agencies

•  2008 revenues of $1.87 billion – up 29 percent from 2007; organic growth of 18 percent 
•  Approximately 91 percent of revenues from the Intelligence Community and Department of Defense
•  Record cash fl ows in 2008 of $127 million 
•  Since 2002 initial public off ering, ManTech’s revenue and net income have grown by a compound annual rate of 25 percent
•  Approximately 8,000 highly skilled professionals; over 75 percent with active security clearances; approximately 42 percent cleared to Top Secret or above
•  214 locations worldwide with operations in approximately 40 countries 
• 

In 2008, ManTech received the following recognition:

- 

- 
- 
- 

 A-Space, a Web 2.0 enhanced collaboration tool developed by ManTech for the Intelligence Community was named one of the Top 50
inventions of the year by Time magazine.  Modeled after popular internet social networking sites, A-Space allows intelligence analysts to share 
information more freely and collaborate across agencies.
 Named one of the Top 100 IT companies in the world by Business Week magazine. 
 Chosen by Forbes.com as one of the 400 Best Big Businesses in America.
 Selected as a G.I. Jobs magazine Top Ten Military Friendly Employer for the third year in a row. 

2 3 %   C A G R

1,870

1,448

1,137

980

827

667

2 3 %   C A G R

153

114

91

84

68

55

2 1 %   C A G R

2.55

1.95

1.60 1.64

1.29

0.98

2003

2004

2005

2006

2007 2008

2003

2004

2005

2006

2007 2008

2003

2004

2005

2006

2007 2008

ANNUAL REVENUE *
(in millions)

ANNUAL OPERATING INCOME *
(in millions)

ANNUAL EPS *

OPERATING RESULTS  (in thousands, except per share data amounts)

2006

2007

2008

$1,137,178

$1,448,098

$1,870,879

2004

$826,928

$68,467

$41,918

$1.29

$22,963

$196,086

$127,034

$468,402

$25,184

$320,396

Revenues    

Operating Income

Income from continuing operations

Diluted earnings per share from 
continuing operations

Cash and cash equivalents

Accounts receivable

Working capital

Total assets

Total debt

Total stockholders’ equity

* Represents results from continuing operations

2008 Annual Report

2005

$980,289

$84,178

$53,203

$1.60

$90,650

$55,596

$1.64

BALANCE SHEET SUMMARY

$5,678

$239,676

$103,576

$555,985

$42,523

$378,582

$41,510

$236,436

$168,189

$613,252

$0

$459,016

$113,704

$67,327

$1.95

$8,048

$337,467

$68,409

$937,503

$165,000

$551,305

$153,358

$90,292

$2.55

$4,375

$407,248

$140,744

$1,021,712

$44,100

$680,536

 
ManTech International Corporation

To Our Shareholders

In 2008 we proudly celebrated our 40th year of providing advanced technology solutions and services 
r 
to the U.S. government and other customers and continued our history of success by delivering another 
s, 
banner year of performance.  Backed by the dedication and skills of our approximately 8,000 employees, 
e,
and the experienced leadership of our management team, we generated outstanding growth in revenue, 
ur 
income, earnings per share (EPS), cash fl ow and other key measurements. Our success was fueled by our 
performance on our existing contracts, new business awards, continued focus on the high-end defense 
ined
and intelligence markets that support national security and the Global War on Terrorism, and the disciplined 
execution of our growth strategy.

2008 revenue up 29 percent; income rises 34 percent 

Since 2002 when we went public, our revenue has grown by a compound annual growth rate of 25 percent.  
cent.  
revious 
We maintained that trend in 2008, producing $1.87 billion in revenue, a 29 percent increase from the previous 
e
year.  Our organic growth rate (non-acquisition related) in 2008 was 18 percent and over the prior three 
8 was
years our average organic growth has been 15 percent.  Net income from continuing operations for 2008 was 
nuing 
$90.3 million, up 34 percent compared to $67.3 million in 2007.  Diluted earnings per share from continuing 
operations for 2008 were $2.55, up 31 percent from $1.95 in 2007.

Contract awards are critical to our growth and in 2008 we recorded 2.97 billion, with 35 percent coming from 
new business awards.  This generated a contract backlog (an estimate of remaining revenue from signed contracts) 
for the year of $4 billion, a 24 percent increase from 2007. Funded backlog was $1.2 billion, up 56 percent from 2007.

Our persistent focus on cash collections in 2008 helped to generate operating cash fl ow from continuing operations of $127 million.  This strong fi nancial 
management left us with only $40 million in net debt at the end of 2008, which gives ManTech great operating fl exibility in the diffi  cult credit and 
liquidity environment our nation is currently experiencing.

Acquisition of Emerging Technologies Group and EWA Services Inc. 

We made two strategic acquisitions in 2008 that broaden our capabilities in the Department of Defense, the Intelligence Community and the cyber 
security arena, and add to our employee base of highly-skilled, cleared workers. Emerging Technologies Group, with 58 employees, was a privately held, 
fast growing provider of computer and network forensics supporting counterterrorism and counter intelligence missions around the world. EWA Services 
with 167 employees, was a subsidiary of a privately held company providing information technology, threat analysis, and test and evaluation for several 
Department of Defense agencies.  Nearly all the employees of both organizations hold security clearances.

Contract awards and other highlights

We won a number of signifi cant new contracts in 2008 including:

•  An $820 million, two-year contract with the U.S. Army TACOM Life Cycle Management Command to support Route Clearance Improvised 

Explosive Devices (IED) detection, removal and troop transport vehicles.

•   A $151 million, fi ve-year contract from the Naval Sea Systems Command for information technology support.
•  A $124 million, fi ve-year contract with the Department of State for its Global IT Modernization. 
•   A $268 million, one-year bridge extension under the Countermine program for the U.S. Army that helps protect the troops from IEDs.
•  A $62 million contract expansion to support the Army’s global property management system.

1

To Our Shareholders (cont’d)

We were also very proud to announce that our employees supported the 
USSOUTHCOM Military Group (MILGP) in Colombia during the successful rescue 
mission that freed 15 hostages that had been held captive for fi ve years or more 
by Colombian leftist rebels. ManTech assisted the MILGP with the installation and 
maintenance of the systems that supported the planning, real-time tracking, 
sensor and imagery data provided by the Intelligence Community. Our team in 
Colombia assisted the MILGP with the enhancement of the Colombian Armed 
Forces telecommunications systems which were critical to the command and 
control of the rescue operation.  ManTech also provides mission-critical support to 
our troops on the ground in Iraq and Afghanistan and other parts of the world.

Praised for Our Performance, Ethics and Innovation

Keith Stansell (foreground) steps off  the back ramp of a U.S. Air 
Force C-17 Globmaster III as he arrives on Lackland Air Force 
Base, Texas, July 2, 2008. Stansell was one of three U.S. defense 
contractor employees captured by Colombian guerillas after 
their plane crashed in the jungle in February 2003.  ManTech 
employees supported USSOUTHCOM in the successful rescue 
eff ort that freed 15 hostages.

U.S. Air Force photo by Lance Cheung

ManTech’s fi nancial accomplishments in 2008 were widely recognized. Business Week magazine named us one of the Top 100 IT companies in the world 
and Forbes.com ranked us as one of the 400 Best Big Companies in America. We were also cited for our business management. We received a top rating 
as a government contractor for our ethics and compliance programs from the Ethisphere Institute.

Our ability to provide our customers with leading-edge solutions is a key factor in our success. Two of our innovative off erings received special praise. 
A-Space, an information collaboration tool we developed for the Defense Intelligence Agency (DIA) and the Offi  ce of the Director of National Intelligence 
was named one of the Top 50 Inventions of 2008 by Time magazine. A-Space, which is being used throughout the Intelligence Community, provides an 
interactive workspace for intelligence analysts to solve problems, and among other capabilities, uses Web 2.0 tools to share geospatial intelligence data.

Another ManTech solution that was recognized for innovation was CORIN™ XLS, a transparent polyimide fi lm used in space and electronics applications. 
CORIN, which is a lightweight material that replaces metals and glass to lower the cost of satellites, was named by R&D Magazine as one of the top 100 
most innovative and technologically signifi cant new products of 2008.

ManTech – A Preferred Employer

For the third year in a row, G.I. Jobs magazine named us one of the Top Ten Military Friendly Employers in the nation.  This is a coveted distinction for any 
company, but particularly for ManTech because veterans are a key part of our workforce and we operate in a very competitive environment for skilled and 
cleared employees. We are focused on being a preferred company and ever-mindful that our employees are our most valuable asset. The welfare of our 
employees, particularly those serving in hostile environments is always our highest concern. We are forever thankful for their service and we remain 
vigilant for their continued safety.

Looking Ahead

Thanks to our continued strong operational performance, excellent fi nancial returns and disciplined execution of our strategic plan, ManTech is poised to 
continue to deliver high value to our shareholders.  Going forward, we will remain focused on the mission-critical markets in the Department of Defense 
and the Intelligence Community and we are poised to take advantage of growing markets such as cyber security. Protecting our nation’s cyber 
infrastructure is a major focus of the U.S. government and ManTech is well-positioned to support these eff orts. The combination of our uniquely skilled 
cyber security employees, our vast national security domain knowledge across the company, and our advanced facilities gives us the expertise and 
fast-response capability that is crucial in meeting today’s cyber threats. We are excited about our growth prospects and confi dent in our ability to reach 
the $3 billion growth mark and build ManTech into the premier mid-tier national security company.

George J. Pedersen
Chairman of the Board of Directors and Chief 
Executive Offi  cer

2

2008 Annual Report

Robert A. Coleman  
President and Chief Operating Offi  cer

 
ManTech International Corporation

A Corporate Commitment to Social Responsibility 

Corporate social responsibility is a fundamental tenet of ManTech’s core values. We are dedicated to being a good corporate citizen and for ManTech that 
means adhering to the highest ethical standards in our business, taking care of our employees, contributing to the protection of the environment and 
supporting the communities where we live and work.

We have earned a reputation as a fair and honest company thanks to our employees and their commitment to upholding high ethical standards, both at 
home and abroad.   In 2008 the Ethisphere Institute  ranked ManTech 15th among the largest 100 government contractors for our ethics and compliance 
initiatives.

We are constantly focused on our employees, their well-being and being an employer of choice in our marketplace. They are the energy which powers 
our success.  Last year G.I. Jobs magazine named us a Top 10 Military Friendly Employer for the third year in a row.

ManTech is devoted to environmental stewardship and being a leader in the community. We are focused internally on green initiatives and externally on 
helping our customers meet environmental directives for IT and lifecycle cost savings. 

Working to enrich the community - whether it’s aid to our neighbors in need, donations to non-profi t charities or supporting our men and women in the 
armed forces - has been a focus of ManTech since our founding. Here are some of the organizations that ManTech and its employees supported in 2008:

•   Alternative House
•   American Cancer Society 
•   American Diabetes Association
•   Arlington Alexandria Homeless Coalition
•   Charity Works 
•   Children’s National Medical Center 
•   Fisher House 
•   Easter Seals
•   Homestretch, Inc
•   INOVA Blood Bank 
•   Ivymount School
•   Komen Race for the Cure
•   March of Dimes

•   Marine Corps Marathon
•   Muscular Dystrophy Association
•   National Guard Youth Foundation
•   National Kidney Foundation
•   National Multiple Sclerosis Society
•   Our Neighbor’s Child
•   Relay for Life
•   Rolling Thunder 
•   Special Olympics – Virginia and Florida 
•   Teardrops to Rainbows
•   Toys for Tots
•   USO of Metropolitan Washington
•   Verizon Foundation Hopeline Phone
       Program to prevent domestic violence

Soldiers show appreciation for receiving ManTech care packages

3

Corporate Overview

ManTech International Corporation is a leading provider of innovative technologies and solutions for mission-critical national security programs for the 
Intelligence Community; the Departments of Defense, State, Homeland Security, and Justice; the Space Community; and other U.S. federal government 
agencies.  We have successfully supported national security missions since our founding and as a result we have built a deep reservoir of domain knowledge 
and highly skilled professionals, and earned a reputation in the marketplace as a trusted provider of high-priority professional services.  Those services include 
technical support to our armed services in essential operations around the world, helping fi ght the Global War on Terrorism and protecting our homeland.  
ManTech has approximately 8,000 employees who embody our culture based on integrity and high ethical standards.  More than 75 percent of our employees 
hold security clearances and approximately 42 percent are cleared at Top Secret or above. 

Worldwide presence – diverse spectrum of capabilities

With operations in approximately 40 countries and 42 states we can support our customers with a comprehensive and vast array of technical skills and solutions 
anywhere around the world.  Our off erings are in the areas of Cyber Operations, Intelligence Analysis, Mission Operations and Security; Information Technology; 
Systems Engineering and Integration; and Global Logistics Systems and Support.

Cyber Operations, Intelligence Analysis, Mission Operations and Security

Cyber Operations
ManTech’s cyber security capabilities form a center of excellence that leverages unique technical skills and information operations expertise to solve some of the 
most diffi  cult computer forensics and information security challenges faced by the U.S. government, the Intelligence Community and commercial organizations.  
We are experts at conducting reverse engineering, vulnerability assessments, computer network operations, computer network forensic services and training.

Intelligence Operations and Analysis Support
In support of the U.S. government and the Intelligence Community, we develop and integrate collection and analysis systems and techniques that support 
classifi ed systems and facilities designed to collect, analyze, process and report various intelligence sources here and around the world.

Secrecy Management, Program Security and Mission Operations
To protect a program’s assets from sophisticated cyber attacks, ManTech off ers a disciplined program protection approach and advanced skill in exposure 
analysis, secrecy architecture design, multi-disciplinary counterintelligence, and security policy development and implementation.

Global Integrated Logistics Systems and Support

Communication Systems and Infrastructure Support
ManTech personnel have provided C4I systems operations and maintenance support to deployed units in hostile environments beginning with Desert Storm 
and through the ongoing Iraqi Freedom initiative.  We support a variety of advanced surveillance systems deployed throughout Iraq and Afghanistan that gives 
the U.S. military the intelligence required to rapidly respond to hostile actions.

Global and Domestic Mission-Critical Logistics Support
For the U.S. Army we procure equipment from manufacturers and deliver systems and parts in theaters around the globe.  We sustain and maintain several 
variants of counter IED vehicles and systems. 

Global Property Management
We provide property program management and readiness tracking, automated records maintenance, property accountability, and property book visibility, 
evaluation, validation and analysis for the U.S. Army’s Global Property Management Services supporting operations worldwide.  

Global Information Technology Modernization
For the U.S. State Department we provide secure information technology systems life-cycle management to numerous government customers worldwide.  We 
modernize over 850 classifi ed and unclassifi ed networks in over 340 customer locations.  The backbone of our global capabilities is a comprehensive ISO 
9001:2000-certifi ed management and control system.

4

2008 Annual Report

ManTech International Corporation

Corporate Overview (cont’d)

Information Technology

A-Space
ManTech developed and operates A-Space for the Director of National Intelligence and DIA to accelerate the analytical transformation in support of post-9/11 
intelligence reform eff orts.  A-Space is a social networking and collaboration solution similar to popular Internet applications.  It is the focal point for 
information sharing across all 16 intelligence agencies.  In 2008 Time magazine named A-Space one of the top 50 inventions of the year. 

Secure Information Sharing and Collaboration
ManTech engineered and deployed a commercial-off -the-shelf based secure information sharing system now in use by the Army, Navy, FBI and other agencies 
that uses standard Microsoft desktop utilities, includes Voice-Over-Internet-Protocol, video teleconferencing and instant messaging.

Mission Enabling Solutions
We design, develop, implement, test, maintain and Web-enable software applications for information systems network infrastructures.

Enterprise Systems Engineering
ManTech implements proven enterprise-wide network infrastructures and components that include LAN/WAN architectures, messaging architectures, network 
management solutions, directory services architecture, and Web hosting.

Geospatial Intelligence Tools 
ManTech applies its expertise in information processing to develop geospatial intelligence analysis tools that support the Department of Homeland Security 
Common Operating Picture, the State Department’s Blue Force Tracker, and a radar signal processing toolkit that creates synthetic aperture radar images and 
performs moving target detection and characterization.

Service Oriented Architectures
The service oriented architecture (SOA) approach to system and application development maximizes fl exibility and reduces redundancy by making commonly 
used functions dynamically available as shared, reusable services.  ManTech professionals developed the fi rst operational SOA in DoD and provided DIA with a 
secure, standards-based SOA-enabled environment for intelligence analysis.

Systems Engineering and Integration

Space Community Support
We provide systems engineering, technical and scientifi c services to the Air Force, NASA, National Reconnaissance Offi  ce (NRO) and others in the Space 
Community to ensure quality engineering, reliability and system safety.  Space qualifi ed hardware we build is based on company developed cutting-edge 
materials that fully meet critical national security and commercial space requirements.

Systems Engineering Services
ManTech is a recognized leader in applying systems engineering across a wide array of complex development and acquisition programs for government and 
industry.  We are noted for implementing a disciplined, tailorable systems approach across the life-cycle for the U.S. Navy, Defense Advanced Research Projects 
Agency, Missile Defense Agency (MDA), NRO, Defense Threat Reduction Agency, Space and Missile Defense Command, Department of Homeland Security, FAA 
and NASA. ManTech is rated CMMI Level 3 for software and systems engineering.

Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance (C4ISR)
ManTech has proven experience in the design, analysis, implementation and support of all aspects of C4ISR systems and technology, with specifi c expertise 
working with the NRO, DOD, MDA, joint staff  and combatant commands.

Modeling and Simulation, Testing and Evaluation
For the U.S. Department of Homeland Security’s Domestic Nuclear Detection Offi  ce we provide system analysis, modeling and testing of technologies and 
systems being deployed to identify and detect nuclear and radiological sources attempting to enter the U.S.

5

Board of Directors

6

2008 Annual Report

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

Mary K. Bush
Founder and President, Bush International
Former Managing Director, Federal Housing Finance Board

Barry G. Campbell
Former Chairman and Chief Executive Offi  cer, Tracor Systems Technology, Inc.

Robert A. Coleman
President and Chief Operating Offi  cer 

Walter R. Fatzinger, Jr.
Vice Chairman and Director, ASB Capital Management, Inc.

Admiral David E. Jeremiah
U.S. Navy (Ret.), Former Vice Chairman of the Joint Chiefs of Staff 

Richard J. Kerr
Former Deputy Director, Central Intelligence Agency, CIA Offi  cer

Lieutenant General Kenneth 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

Left to Right:

George J. Pedersen
Chairman of the Board and Chief Executive Offi  cer 

Robert A. Coleman
President and Chief Operating Offi  cer

Kevin M. Phillips
Executive Vice President and Chief Financial Offi  cer

Louis M. Addeo
President, Defense Systems Group

James N. Allburn
President, ManTech Systems Engineering & Analysis

Kenneth J. Farquhar
President, ManTech Systems Engineering Corporation

Joseph R. Fox
President, ManTech Information Systems & Technology Corporation

Jay W. Kelley
President, ManTech Global Services Corporation

Thomas E. Mitchell
President, ManTech Security & Mission Assurance

Kurt J. Snapper
President, ManTech Security Technologies Corporation

ManTech International Corporation

Management Team

77

 
ManTech’s Commitment to Corporate Governance

Investor confi dence in ManTech is of paramount importance to us. 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 we strive 
to report 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 in accordance with the highest principles of business ethics, and meeting or exceeding the corporate governance 
requirements of the Sarbanes-Oxley Act and other SEC and NASDAQ regulations.  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 Board committees clearly establish their respective roles and responsibilities and are made publicly 

available on our website;

•  We have Corporate Governance Guidelines that assist the Board in the exercise of its responsibilities;

•  We have an established process by which our stockholders can communicate with our Board of Directors on matters 

important to them;

•  We have 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 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 have a related party transactions policy that is monitored by the Audit Committee, a copy of which is available on our 

website; and

•  We have a stock option grant policy that is approved and overseen by the Compensation Committee, a copy of which is 

available on our website.

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.

8

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2008 Annual Report

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

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

FORM 10–K

For the fiscal year ended December 31, 2008
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 No. 000-49604

Delaware
(State or other jurisdiction of incorporation or organization)

22-1852179
(I.R.S. Employer Identification No.)

(Exact name of registrant as specified in its charter)

12015 Lee Jackson Highway, Fairfax, VA 22033
(Address of principal executive offices)
(703) 218-6000
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Class A Common Stock, Par Value $0.01 Per Share

Name of each exchange on which registered
Nasdaq Stock Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant

Act. Yes È No ‘

is a well-known seasoned issuer, as defined in Rule 405 of the Securities

Indicate by check mark if the registrant

Act. Yes ‘ No È

is not required to file reports pursuant

to Section 13 or 15(d) of the

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 the past 90 days. Yes È 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 the 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. È

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

Large accelerated filer È
Non-accelerated filer ‘ (Do not check if a smaller reporting company)
Indicate by check mark whether

the registrant

Act). Yes ‘ No È

is a shell company (as defined in Rule 12b-2 of

the Exchange

Accelerated filer ‘
Smaller reporting company ‘

The aggregate market value of the voting stock held by non-affiliates of the registrant as of June 30, 2008 was $1,014,763,366

(based on the closing price of $48.12 per share on June 30, 2008, as reported by the Nasdaq National Market).

There were the following numbers of shares outstanding of each of the registrant’s classes of common stock as of
February 18, 2009: ManTech International Corp. Class A Common Stock, $.01 par value per share, 21,541,399 shares; ManTech
International Corp. Class B Common Stock, $.01 par value per share, 13,958,345 shares.

DOCUMENTS INCORPORATED BY REFERENCE

Certain portions of the definitive Proxy Statement to be filed with the Securities Exchange Commission pursuant to
Regulation 14A in connection with the registrant’s 2009 Annual Meeting of Stockholders, to be filed subsequent to the date hereof,
are incorporated by reference into Part III (Items 10, 11, 12, 13 and 14) of this Annual Report on Form 10-K. Such definitive Proxy
Statement will be filed with the Commission not later than 120 days after the end of the fiscal year covered by this Annual Report
on Form 10-K.

Item 1. Business

PART I

This Annual Report on Form 10-K contains forward-looking statements that involve substantial risks and
uncertainties, many of which are outside of our control. We believe that these statements are within the definition
of the Private Securities Litigation Reform Act of 1995. You can often identify these statements by the use of
words such as “may,” “will,” “expect,” “intend,” “anticipate,” “believe,” “plan,” “seek,” “estimate,” “continue”
and other similar words or variations on such words. You should read our forward-looking statements carefully
because they discuss our future expectations, make projections of our future results of operations or financial
condition or state other “forward-looking” information. Although forward-looking statements in this Annual
Report reflect our good faith judgment, such statements can only be based on facts and factors currently known
by us. Consequently, forward-looking statements are inherently subject to risks and uncertainties and actual
results and outcomes may differ materially from the results and outcomes discussed in or anticipated by the
forward-looking statements. The factors that could cause or contribute to such differences include, but are not
limited to, those discussed in Item 1A. “Risk Factors” below, as well as those discussed elsewhere in this Annual
Report. We undertake no obligation to update any forward-looking statement.

In this document, unless the context indicates otherwise, the terms “Company” and “ManTech,” as well as
the words “we,” “our,” “ours” and “us,” refer to both ManTech International Corporation and its consolidated
subsidiaries. The term “registrant” refers only to ManTech International Corporation, a Delaware corporation.

Industry and market data used throughout this Annual Report on Form 10-K were obtained through surveys
and studies conducted by third parties, industry and general publications and internal company research. INPUT,
an independent federal government market research firm, was the primary source for third-party industry and
market data and forecasts. We have not independently verified any of the data from third-party sources nor have
we ascertained any underlying economic assumptions relied upon therein. While we are not aware of any
misstatements regarding the industry data presented herein, estimates involve risks and uncertainties and are
subject to change based on various factors, including those discussed under the heading “Risk Factors.”

Business Overview

software services; enterprise architecture;

ManTech is a leading provider of innovative technologies and solutions for mission-critical national security
programs for the Intelligence Community; the departments of Defense, State, Homeland Security and Justice; the
Space Community and other U.S. federal government customers. Our expertise includes systems engineering and
integration;
forensics;
information assurance and security architecture; intelligence operations and analysis support; cyber security;
network and critical
information technology; communications integration and
engineering support; global logistics and supply chain management. With approximately 7,900 highly qualified
employees, we operate in the United States and approximately 40 countries worldwide. As of December 31,
2008, over 75% of our workforce possessed clearances and approximately 42% had Top Secret or above level
clearances, which are necessary to work on classified contracts.

information operations and computer

infrastructure protection;

In 2008, we had revenues of $1.87 billion, a 29.2% increase over our 2007 revenue of $1.45 billion. We
have grown substantially in the last seven years, from revenues of $431 million at the end of 2001, just prior to
our initial public offering (IPO) in February 2002, to our current levels today. We derive a substantial majority of
our revenues from our customers in the Intelligence Community and the Department of Defense:

Fiscal Year

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

Percentage of Revenues from Intelligence Community
and the Department of Defense

93.8%
93.3%
95.2%

Our Intelligence Community and Department of Defense customers include the Office of the Secretary of
Defense; the Department of State; the Department of Homeland Security; the Department of Justice; various
intelligence agencies; federal intelligence and terrorism task forces; the U.S. Army, Navy, Air Force and Marine
Corps; and joint military commands. We also provide solutions to federal government civilian agencies,
including the National Aeronautics and Space Administration (NASA) and the Patent & Trademark Office
(PTO), as well as to state and local governments and commercial customers.

Industry Background

The federal government is the largest consumer of information technology services and solutions in the
United States. We believe that the federal government’s spending on information technology will continue to
increase in the next several years, driven by the expansion of national defense and homeland security programs,
the continued need for sophisticated intelligence gathering and information sharing, increased reliance on
technology service providers due to shrinking ranks of government technical professionals and the continuing
impact of federal procurement reforms regarding information technology spending. Federal government spending
on information technology has consistently increased in each year since 1980. INPUT, an independent federal
government market research firm, expects this trend to continue, with federal government spending on
information technology forecast to increase from approximately $72 billion in federal fiscal year 2008 to $88
billion in federal fiscal year 2013, a compound annual growth rate in excess of 4% over the next five years.
Moreover, this data may not fully reflect government spending on classified intelligence programs, operational
support services to our armed forces and complementary technical services, which include sophisticated systems
engineering.

Across the National Security community, we see the following trends that will continue to drive increased

spending and dependence on technology support contractors.

➢ Increased Spending on Defense and Intelligence to Combat the Global War on Terror

The Department of Defense is the largest purchaser of information technology in the federal government.
For government fiscal year 2009, President Bush signed a bill that authorizes $488 billion in defense spending.
This same appropriations bill includes supplemental funding of $66 billion to the Department of Defense.
Additionally, the Obama administration has requested another $75 billion of supplemental funding for the
remainder of fiscal year 2009. For government fiscal year 2010, the Obama administration has submitted a
defense budget for fiscal year 2010 of $534 billion and an additional $130 billion for the contingency operations
in Iraq and Afghanistan. The Intelligence Community is another significant source of our revenue base. The
intelligence budget for government fiscal year 2008 totaled approximately $48 billion, a 9% increase from
government fiscal year 2007 and has grown at a compound annual rate of 6% over the last ten years when it
totaled $27 billion in government fiscal year 1998. The vast majority of the growth has taken place after the 9/11
attacks, which created an urgent need to respond to the Global War on Terror with enhanced intelligence efforts.
We believe that the Intelligence Community will continue to see growth in its budget as the global threat of
terrorism has not diminished.

➢ Increased Spending on Cyber Security

In January 2008, President Bush signed National Security Directive 54 and Homeland Security Directive 23,
which established the Comprehensive National Cyber Initiative (CNCI). The CNCI, which is mostly classified, is
focused on securing the government’s cyber networks and involves all agencies of the federal government over
the next five to ten years. INPUT forecasts that federal spending on Cyber & Information Security will increase
from approximately $7 billion in federal fiscal year 2008 to approximately $11 billion in federal fiscal year 2013,
an 8% compound annual growth rate over the next five years.

➢ Continuing Focus on Information Sharing, Data Interoperability and Collaboration

We believe intelligence agencies will increase their demand for data and text mining solutions to enable
them to extract, analyze and present data gathered from the massive volumes of information available through

3

open sources such as the Internet. This increased focus on national security, homeland security and intelligence
has also reinforced the need for interoperability among the many disparate information technology systems
throughout the federal government. We believe the Department of Homeland Security and the intelligence
agencies will continue to be interested in enterprise systems that enable better coordination and communication
within and among agencies and departments. The Director of National Intelligence’s Vision 2015 supports
collaboration and sharing of information by calling for a globally networked Intelligence Enterprise that is
established on a collaborative foundation of shared services, mission-centric operations and integrated mission
management.

➢ Reliance on Technology Service Providers

The demand for technology service providers is expected to increase due to the need for federal agencies to
maintain core operational functions while maintaining and updating information technology across their
enterprises. A 2008 industry forecast from INPUT estimates that federal information technology outsourcing will
grow from over $16 billion in federal fiscal year 2008 to approximately $21 billion in federal fiscal year 2013, an
approximately 5% compound annual growth rate, due to several factors including the impending federal
information technology workforce shortage. Given the difficulty the federal government has experienced in
hiring and retaining skilled technology personnel in recent years, we believe the federal government will need to
rely heavily on technology service providers that have experience with government legacy systems, can sustain
mission-critical operations and have the required government security clearances to deploy qualified personnel in
classified environments.

➢ Continuing Impact of Federal Procurement Reform

In recent years, federal agencies have had increased access to alternative choices of contract acquisition
vehicles, such as indefinite delivery/indefinite quantity (ID/IQ) contracts, Government Wide Acquisition
Contracts (GWAC), the General Services Administration (GSA) schedule and agency specific Blanket Purchase
Agreements (BPA). These choices have created a market-based environment in government procurement. The
environment has increased contracting flexibility and provides government entities access to multiple channels to
contractor services. Contractors’ successful past performance, as well as technical capabilities and management
skills, remain critical elements of the award process. We believe the increased flexibility associated with the
multiple channel access, such as ID/IQ contracts, GWACs, GSA schedule contracts and BPAs, will result in the
continued utilization of these contracting vehicles in the future and will facilitate access to service providers to
meet the increased demand for, and delivery of, required services and solutions.

Our Solutions and Services

We deliver comprehensive information technology, technical and other services and solutions for mission-
critical, enterprise information technology and communication systems, primarily in support of national security
programs for the Intelligence Community and Department of Defense. Our solutions include the following
service offerings, often delivered in combination over an extended period of time in support of long-term
programs:

•

•

•

•

•

•

•

information technology (system development lifecycle management and system modernization);

cyber security/information assurance (security architecture, computer forensics, intrusion detection,
penetration testing and cyber threat analysis);

information operations and information warfare support;

intelligence operations and analysis support;

systems engineering and integration;

software development services;

enterprise architecture (design, review and implementation);

4

•

•

•

network and critical infrastructure protection;

communications integration; and

global logistics & supply chain management.

Our offerings fall into one or more of four basic categories: Information Technology Solutions; Intelligence
Analysis & Mission Operations; Systems Engineering & Integration Solutions; and Global Logistics & Supply
Chain Management.

Information Technology Solutions

We provide a broad range of information technology solutions to our customers, including the following:

➢ Secure Information Sharing and Collaboration

The ability to collaborate and share information across non-traditional boundaries, in a trusted fashion, has
become critically important for National Security. We apply extensive engineering experience and proven
solutions to facilitate collaboration and information sharing to meet Department of Defense and Intelligence
Community security requirements. We were selected as one of two companies to lead the development of a next
generation analytic sharing and collaboration program for the Office of the Director of National Intelligence
(ODNI). The prototype solution that we developed in support of this contract called A-Space was recognized by
TIME magazine as one of the Top 50 inventions of 2008. Additionally we have engineered and deployed for the
Army, Navy and Federal Bureau of Investigation (FBI) among others, highly secure (Director of Central
Intelligence Director (DCID) 6/3 Protection Level (PL) 3 accredited) robust information systems that provide
trusted information sharing tools and capabilities and a COTS-based solution that includes Microsoft Office,
email, Voice Over Internet Protocol (VOIP), Video Teleconferencing (VTC), instant messaging, document
management and an information portal.

➢ Mission Enabling Solutions

We design, develop, implement, test, maintain and web-enable security applications for our customers’
information systems and network infrastructures. We provide comprehensive e-commerce services, including
web development efforts that focus on designing and maintaining scalable, interoperable, reliable and portable
end-to-end information management solutions. We apply these capabilities to critical customer missions
requiring multi-layered security within applications in order to improve information sharing and collaboration.

For example, we developed a state-of-the-art analytic environment that provides access to regional, national
and international information with appropriate security level access controls, providing direct operational support
to time-sensitive counterterrorism activities in support of an Intelligence Community customer.

➢ Enterprise Systems Engineering

We provide network architecture planning and implementation services and systems engineering services in
support of enterprise-wide network infrastructures and components that
include LAN/WAN architectures,
messaging architectures, network management solutions, directory services architecture and web hosting. These
services are provided within secure environments requiring the application of multi-level security policies across
the enterprise. For example, we developed and implemented a scalable enterprise-wide network and messaging
infrastructure accredited to meet DCID 6/3 PL3 in support of an Intelligence Community customer. Additionally,
we provide enterprise systems engineering services to include LAN /WAN, messaging and e-mail infrastructure
architecture and implementation to an Intelligence Community customer.

➢ Service Oriented Architectures

We are a provider of Service Oriented Architecture (SOA) solutions to the federal government and we have
implemented and taken operational, numerous large scale SOA/data sharing programs. For example, we led the

5

design and implementation of the DoD Intelligence Information Systems (DoDIIS) service oriented architecture
and services-based capabilities for the Defense Intelligence Agency. The DoDIIS SOA framework helps
intelligence analysts to comb through millions of intelligence reports to find relevant and meaningful answers to
national security questions. The DoDIIS SOA better enables intelligence analysis,
information discovery,
knowledge management and information sharing. It provides the architectural framework for information sharing
across DoDIIS, the Intelligence Community and the Defense Intelligence mission areas.

Intelligence Analysis & Mission Operations

We provide a broad range of solutions to enhance systems and network availability and mission-critical
performance of our customers’ hardware, software, computer network and telecommunication assets and
operations, including the following.

➢ Intelligence Operations and Analysis Support

We provide services for strategic and tactical intelligence systems, networks and facilities in support of the
Intelligence Community and Department of Defense. To support classified systems and facilities designed to
collect, analyze, process and report on various intelligence sources, we develop and integrate collection and
analysis systems and techniques. Our intelligence-related services also include the design, rapid development and
prototyping, integration and management of real-time signal processing systems. We also provide support to the
development and application of analytical techniques to counterintelligence, Human-Intelligence (HUMINT)
operations/training and counter-terrorist operations. Our offerings also include subject matter expert analysts who
work directly with our Intelligence Community and Department of Defense customers to produce long-term
classified and unclassified research/analytic reporting, as well as provide real-time analytic support for ongoing
intelligence operations.

➢ Secrecy Management and Program Security Architecture

We provide secrecy management and security infrastructure services for highly-classified programs,
including intelligence operations and military programs. Due to the highly sensitive and classified nature of these
programs, opportunities are often limited to a select number of providers that possess the requisite capabilities,
qualifications and special access clearances. We provide secrecy and security services including vulnerability
assessment, exposure analysis, secrecy architecture design, security policy development and implementation,
lifecycle acquisition program security, Operations Security (OPSEC), information assurance, Anti-Tamper,
Export Compliance support, foreign disclosure, system security engineering, security awareness and training,
comprehensive security support services and technical certification and accreditation services.

For example, we provide integrated security support for the Joint Strike Fighter (JSF) Program. With
numerous highly classified technologies incorporated in its design and international content
in both its
development and its usage, the JSF Program presents the most complex security problem set of any weapon
system in our nation’s history. We provide a complete range of integrated security services to the JSF Program
Office, including physical, personnel and cyber security disciplines, as well as in-depth support to international
disclosure controls. Our established performance in security architecture development, critical information
protection and our security and risk management methodologies establish a framework for lifecycle JSF program
protection that encompasses all security disciplines.

➢ Cyber Security

We provide comprehensive cyber warfare and cyber defense solutions and services to the Department of
Defense, agencies in the Intelligence Community, Department of State and Department of Justice. We
accomplish this through our expertise in policy, planning and development; detection, analysis, prevention and
deterrence; penetration and exploitation; security architecture design, development and implementation;
certification and accreditation; and training and awareness support. Our services include specific competencies
such as cyber security incident response, threat and malcode analysis, computer forensics, cyber threat analysis
and vulnerability analysis.

6

➢ Information Operations and Information Assurance

We provide customers in the Department of Defense, Intelligence Community and commercial market a
wide range of services in the areas of Incident Response, Digital Vulnerability Assessments, Specialized
Network Architecture Support and Intrusion Operations. We perform advance services in the areas of data
mining analysis, atypical data recovery techniques and data extraction. We conduct advanced computer network
operations analysis including the reverse engineering of network protocols, applications and operating systems.
We also provide custom internet enumeration and analysis services and full lifecycle support for internet access
architectures.

For example, in support of a customer, we developed and staff a national level computer forensic laboratory

and provide a broad spectrum of subject matter expertise, including the following:

•

•

•

•

•

•

•

reverse engineering and code analysis;

forensic signature creation, detection and analysis;

damaged media recovery;

hidden data processing;

protected data processing;

forensic software development; and

custom training development and implementation.

We played a crucial role in the successful establishment of the mission and helped our government mission

partner create a strong foundation for providing advanced forensics support.

Systems Engineering & Integration Solutions

We offer our customers a broad range of systems engineering and systems integration solutions, including

the following.

➢ Systems Engineering Services

We perform comprehensive Systems Engineering services to analyze, develop and integrate solutions for
U.S. Navy hardware and software requirements. Systems Engineering is an interdisciplinary approach and means
for enabling the realization and deployment of successful systems. We provide Systems Engineering services
with scientists and engineers that consider both technical and business requirements to deliver quality products
that have been meeting the war fighter’s needs since 1968. We support the entire systems lifecycle from
requirements definition and analysis, through design and development and on to test and evaluation and
operational deployment. As part of our systems engineering support we address a full 360 degree perspective of a
program, including disciplines of system, software, hardware, acoustics, communications, reliability, safety and
test engineering as well as modeling, simulation and analysis. These services are provided across an entire
spectrum of Navy and Marine Corp systems and platforms that encompass subsurface, surface, ground, air and
space requirements. As an example of our commitment to the Systems Engineering discipline, we have achieved
a Capability Maturity Model® Integration Level 3 rating for Software and Systems Engineering.

➢ Modeling & Simulation, Testing and Evaluation

We provide system analysis, modeling and testing of technologies and systems, which are being deployed to
identify and detect nuclear and radiological sources that are attempting entry into the U.S. for the Department of
Homeland Security’s Domestic Nuclear Detection Office. Our services include technology assessments, sensor
modeling, situational awareness and test preparation and planning.

7

We test complex and mission-critical hardware and software systems used by the Army, Navy and NASA,
with many of these customer relationships spanning more than three decades. We have played key roles in
improving the performance, reliability, maintainability, supportability and weapons effectiveness of all Navy
in-service rotary and fixed wing platforms, including the F/A-18E/F Super Hornet, and their associated ordnance.
We are participating in the development of plans for testing and evaluating the JSF and the Multi-Mission
Maritime Aircraft.

➢ Independent Validation and Verification

We perform tests to certify that new systems or upgraded systems operate in accordance with their design
requirements. For example, we have performed certification services for aircraft weapon systems in support of
U.S. Naval Air Systems Command programs. We are a prime contractor on the Department of Homeland
Security’s Enterprise Acquisition Gateway for Leading Edge Solutions (EAGLE) in the functional category for
Independent Test, Evaluation, Validation and Verification. We were awarded the first task order issued under this
category to provide the DHS’ Science & Technology Directorate with IT security compliance services, IT
security architecture services and IT security independent verification and validation (IV&V) of the Directorate’s
applications and systems at headquarters and throughout its numerous research laboratories.

Global Logistics & Supply Chain Management

We offer our customers a global logistics and supply chain management solution set, which includes the

following offerings:

➢ Communication Systems and Infrastructure Support

We design, procure, install, operate, sustain, test, repair and maintain secure communication systems and
network infrastructures. This requires specialized knowledge of industry standards, state-of-the-art system
architectures and applications in order to recommend and design technology solutions for integration into our
customer’s secure communication systems to include voice, data and video communication systems.

For example, we manage and operate premier infrastructure and facility operations in regional support
centers throughout
the United States, Iraq, Afghanistan, Germany, Korea and elsewhere for intelligence,
electronic warfare and related critical missions. We perform systems and network troubleshooting, maintenance,
repair and installation, as well as integration and testing of electronic, electrical and mechanical equipment
designed for vehicular, airborne and portable platforms. Personnel located at these regional support centers have
supported every major military deployment since 1990. Beginning with Desert Storm and currently for Operation
Iraqi Freedom and Operation Enduring Freedom (OIF/OEF), our personnel have provided Command, Control,
Communications, Computers and Intelligence (C4I) systems operations and maintenance support to deployed
units in hostile environments. The Quality Management System we developed to support the centers received
International Standards Organization (ISO) 9001:2000 certification.

➢ Global and Domestic Mission-Critical Logistics Support

We are responsible for providing logistics, repair and maintenance services, unique system training and
curriculum support, resource management and inventory tracking technologies for complex, critical and
specialized customer systems in deployed, isolated and remote locations worldwide. Specifically, related to the
Route Clearance program on behalf of the U.S. Army in Southwest Asia (predominantly Iraq and Afghanistan),
we are responsible for maintaining critical and life-sustaining operational readiness levels for counter-improvised
explosive device (IED) vehicles and systems. To that end, we are responsible for the development and
management of supply levels as well as the streamlined operation of supply-chain channels to include vendor
partnerships with original equipment manufacturers (OEMs) to ensure the expedient, unencumbered delivery of
systems and parts to forward operating theatre locations.

8

➢ Global Property Management

We provide property program management and readiness tracking, automated records maintenance,
property accountability and property book visibility, evaluation, validation and analysis for the U.S. Army’s
Global Property Management Services and Property Accountability and Readiness Programs in multiple
locations throughout the western United States and Europe. This program combines our expertise in logistics;
supply support operations and services; operations and maintenance; and systems integration.

➢ Global Information Technology Modernization

We provide secure Information Technology Systems Lifecycle Management to numerous government
customers’ worldwide. We currently have the responsibility to modernize over 850 classified and unclassified
networks and systems in over 340 locations around the world. The backbone of our global capabilities is a
comprehensive ISO 9001:2000-certified management and control system designed to provide best value for the
customers and to lower the total cost of ownership across the systems’ lifecycles. All operations are executed
within our Top Secret-cleared systems storage and integration facilities. These secure facilities are connected to
our customers’ classified communications and networks and are designed to operate within a variety of
operational and physical security parameters. Our seamless interface with extensive secure multi-modal
distribution services is responsible for the successful, secure shipment of information technology equipment
using the entire spectrum of government and commercial distribution services.

Our Growth Strategy

Our objective is to grow our business profitably as a premier provider of comprehensive information
technology and technical services solutions to the federal government market. Our strategies for achieving this
objective include the following.

➢ Expand Our Customer Base

Since we were founded in 1968 we have focused on providing information technology-based solutions and
services for mission-critical national security programs. We have several long standing customer relationships;
many of our early customers are still our customers today. We intend to capitalize on our long-term relationships
with our customers and our reputation within the Intelligence Community, Department of Defense and other
government agencies to attract new customers and to cross-sell our broad array of solutions to our existing
customers. Under the “best value” contracting process that has resulted from reforms in the government
procurement process, past performance and technical approach are key factors that the government may consider
when evaluating competitive bids. Based on our long-term support to numerous customers, we believe we have a
successful past performance track record and have demonstrated technical expertise that gives us credibility with
these customers and enhances our ability to be successful in bidding on follow-on contracts and in competing for
new programs of both existing and new customers. As customers seek a “single integrator solution” approach, we
believe that we have sufficient experience and expertise to support such programs for current and new customers.
Because our personnel are on-site with our customers or work in close proximity to our customers, we develop
close relationships with them and are often able to enhance our customers’ operations by rapidly identifying and
developing solutions for customer-specific requirements.

➢ Target High Growth Segments of the Market

We believe the projected growth in government information technology and technical services spending will
offer opportunities for development and delivery of advanced technology solutions for enterprise applications
and information systems. We intend to expand our service offerings in high growth program areas. In particular,
we intend to focus on providing new or improved solutions in cyber security/information assurance, including
cyber security and homeland defense programs, and other secure systems and infrastructure solutions in support
of National Security programs that support the Global War on Terror and ongoing operations in active theaters of
military and intelligence operations. We also plan to continue to target customers seeking to improve their
information technology infrastructures and systems, especially those charged with building and operating

9

enhanced web-based collaboration/sharing platforms. We have also identified global logistics and supply chain
management opportunities related to sustainment, RESET and refurbishment of equipment.

➢ Attract, Train and Retain Highly Skilled and Highly Cleared Personnel

We continue to attract, train and retain skilled professionals, including engineers, scientists, analysts,
technicians and support specialists, to ensure that we have the capabilities to fulfill our customers’ requirements.
We target candidates who have served in the military or as civilian experts in the Intelligence Community and
Department of Defense, as well as those who are leading specialists in their technology disciplines. Since 2006,
we have annually been ranked in the Top 10 in the nation on the G.I. Jobs Magazine Military-Friendly
Employers list. In 2008, we announced an employer partnership with the U.S. Army Reserve that will allow both
our organizations to recruit, train and employ young people interested in serving the nation and pursuing a career
in information technology. We believe we can continue to retain our employees by offering competitive
compensation and incentive plans, opportunities for career growth through company-supported education
programs and diverse, challenging assignments at over 340 locations domestically and abroad. As of
December 31, 2008, over 75% of our workforce possess clearances and approximately 42% possess Top Secret
or above level clearances.

➢ Pursue Strategic Acquisitions

We plan to enhance our internal growth by selectively pursuing strategic acquisitions of businesses that can
cost-effectively broaden our domain expertise and service offerings and allow us to establish relationships with
new customers. We have successfully acquired twelve companies since our IPO in February 2002, accelerating
our overall revenue growth. We are focused primarily on acquiring businesses that provide value-added solutions
for the Intelligence Community and Department of Defense, but we will also consider opportunities to acquire
other businesses where we can leverage our reputation, core competencies and experienced management team.

2008 Acquisitions

EWA Services—On November 28, 2008, we completed the acquisition of all outstanding equity interests in
EWA Services, Inc. (EWA). EWA, was a subsidiary of a privately held company, providing information
technology, threat analysis and test and evaluation for several Department of Defense agencies. At November 28,
2008, EWA had 167 employees of which nearly 100% held security clearances.

The acquisition of EWA has expanded our work in the Department of Defense and Intelligence missions.

Emerging Technologies Group—On August 29, 2008, we completed the acquisition of all outstanding
equity interests in Emerging Technologies Group, USA, Inc. (ETG). ETG, was a privately-held company,
providing computer and network forensics supporting the counterterrorism and counter intelligence mission
around the world. ETG’s customer base focused primarily in the Intelligence Community and the Department of
Defense. At August 29, 2008, ETG had 58 employees of which nearly 100% held security clearances.

The acquisition of ETG has deepened our capabilities in cyber security and positions us to develop

additional work related to the CNCI.

2007 Acquisitions

McDonald Bradley—On December 18, 2007, we completed the acquisition of all outstanding shares of
McDonald Bradley, Inc. (MBI). MBI was a privately-held company with specialized knowledge in the areas of
information sharing and collaboration,
information assurance, data interoperability and Service Oriented
Architectures (SOA). Their largest customer is the Defense Intelligence Agency (DIA) and over 60 percent of
MBI’s revenue has historically been derived from the Department of Defense, Intelligence Community,
Department of Homeland Security and federal law enforcement agencies. MBI had 264 employees, including
highly-cleared personnel, at December 18, 2007.

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The acquisition of MBI expanded our capabilities in information sharing and data interoperability, added
more depth to our SOA skill set and increased our presence in the DIA and other high-end national security
agencies. Additionally, MBI has a prime contract on the Department of Homeland Security’s EAGLE contract,
which provides us with increased access to support the Department of Homeland Security’s information
technology programs.

SRS Technologies—On May 7, 2007, we completed the acquisition of all outstanding equity interests in
SRS Technologies (SRS). SRS was a privately-held company with specialized domain knowledge in the areas of
space-based radar and communications; chemical, biological, conventional and nuclear weapons detection and
defeat programs; imagery intelligence; and aeronautic, space and information systems development. More than
85 percent of SRS’s revenue has historically been derived from the U.S. government including the Department of
Defense, Intelligence Community and Department of Homeland Security. SRS had over 800 employees,
including highly-cleared and educated personnel, at May 7, 2007.

The acquisition of SRS extended our presence in the high-end national security marketplace and enhances
our presence in the U.S. Defense Advance Research Projects Agency (DARPA), Department of Homeland
Security, Missile Defense Agency, National Reconnaissance Office, National Geospatial-Intelligence Agency
and other Department of Defense agencies.

Our Customers

Our customers include U.S. federal government intelligence, military and civilian agencies; state and local
governments; and commercial customers. We have successful, long-standing relationships with our customers,
having supported many of them for over 30 years. Some of our representative customers include:

•

•

Intelligence Community and Department of Defense customers, such as the Office of the Secretary of
Defense; the U.S. Army, Navy, Air Force and Marine Corps; the Department of State; the Department
of Homeland Security; federal intelligence and terrorism task forces; and multiple intelligence and
classified agencies.

Civilian agencies or departments, such as NASA and PTO.

We derive the vast majority of our revenues from our federal government customers, consisting primarily of

customers in the Intelligence Community and Department of Defense.

Fiscal Year

Percentage of Revenue from
Federal Government Customers

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

98.1%
97.8%
97.8%

Our federal government customers typically exercise independent contracting authority, and even offices or
divisions within an agency or department may directly, or through a prime contractor, use our services as a
separate customer so long as that customer has independent decision-making and contracting authority within its
organization. For example, under a contract with one of the Army’s contracting agencies, program managers
throughout the Army and from other services and defense agencies are able to purchase a wide range of our
solutions. Another contract, the U.S. Army Countermine program accounted for 16.6%, 14.4% and 9.0% of our
revenues for the years ended December 31, 2008, 2007 and 2006, respectively. In addition, there were no sales to
any customers within a single country (except for the United States) where such sales accounted for 10% or more
of our total revenue.

For 2008 and 2007, we derived 52.1% and 46.4%, respectively, of our revenues through relationships with

prime contractors, who contract directly with the customer and subcontract to us.

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Foreign Operations

We treat sales to U.S. government customers as sales within the United States, regardless of where services
are performed. North Atlantic Treaty Organization (NATO) is the Company’s largest international customer. The
percentages of total revenues by geographic customer for the last three years were as follows:

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

98.9% 98.7% 98.9%
1.3
1.1

1.1

100.0% 100.0% 100.0%

Year Ended December 31,

2008

2007

2006

Backlog

At December 31, 2008, our backlog was $4.0 billion, of which $1.2 billion was funded backlog. At
December 31, 2007, our backlog was $3.2 billion, of which $758 million was funded backlog. Backlog
represents estimates that we calculate on the basis described below. We expect that approximately 35% to 45%
of our total backlog will be recognized as revenue prior to December 31, 2009.

We define backlog as our estimate of the remaining future revenues from existing signed contracts,
assuming the exercise of all options relating to such contracts and including executed task orders issued under
ID/IQ or GWAC contracts. This includes an estimate of revenues for solutions that we believe we will be asked
to provide in the future under the terms of executed multiple-award contracts for which we are not the sole
provider, meaning that the customer could turn to other companies to fulfill the contract. It also includes an
estimate of revenues from indefinite delivery, indefinite quantity contracts, which specify a maximum, but only a
token minimum, amount of goods or services that may be provided under the contract.

We define funded backlog to be the portion of backlog for which funding currently is appropriated and
allocated to the contract by the purchasing agency or otherwise authorized for payment by the customer upon
completion of a specified portion of work. Our funded backlog does not include the full value of our contracts,
because Congress often appropriates funds for a particular program or contract on a yearly or quarterly basis,
even though the contract may call for performance that is expected to take a number of years.

Changes in the amount of our backlog and funded backlog result from potential future revenues from the
execution of new contracts or the extension of existing contracts, reductions from contracts that end or are not
renewed, reductions from the early termination of contracts and adjustments to estimates for previously included
contracts. Changes in the amount of our funded backlog also are affected by the funding cycles of the
government. Our estimates of future revenues are inexact and the receipt and timing of any of these revenues is
subject to various contingencies, many of which are beyond our control. The actual accrual of revenues on
programs included in backlog and funded backlog may never occur or may change because a program schedule
could change, a program could be canceled, a contract could be modified or canceled, an option that we have
assumed would be exercised is not exercised or initial estimates regarding the level of solutions that we may
provide could prove to be wrong. For the same reason, we believe that period-to-period comparisons of backlog
and funded backlog are not necessarily indicative of future revenues that we may receive.

Employees

As of December 31, 2008, we had approximately 7,900 employees, including over 1,100 employees located
outside of the United States. Of our overall employee base, over 75 percent hold security clearances and
approximately 42 percent hold Top Secret or higher level clearances. We believe that our relationships with our
employees are good.

12

Patents, Trademarks, Trade Secrets and Licenses

We own two patents in the United States and two patents in Canada. While we believe these patents are

valid, we do not consider our business to be dependent on the protection of these patents in any material way.

We maintain a number of trademarks and service marks to identify and distinguish the goods and services
we offer, to assure consistent quality of those goods and services and to advertise and promote those goods and
services. While retaining protection of our trade secrets and vital confidential information is important, we are
not materially dependent on maintenance of any specific trade secret or group of trade secrets.

We also enter into confidentiality and intellectual property agreements with our employees that contain
provisions requiring them to disclose any inventions, developments, concepts, improvements or trade secrets
growing out of his/her employment with us. Additionally, employees must convey all rights to inventions to us
and refrain from the distribution of proprietary or confidential information. Further, creation of any copyrightable
work within the scope of employment is deemed a work for hire within the meaning of the U.S. Copyright Act
and is therefore owned by us. As such, we maintain a number of copyrights.

Seasonality

Our business is not seasonal. However, it is not uncommon for federal government agencies to award extra
tasks or complete other contract actions in the weeks before the end of the federal government’s fiscal year
(which is September 30) in order to avoid the loss of unexpended fiscal year funds. Additionally, in years when
the federal government does not complete its budget process before the end of its fiscal year, government
operations typically are funded pursuant to a continuing resolution that authorizes agencies of the federal
government to continue to operate, but traditionally does not authorize new spending initiatives. When much of
the federal government operates under a continuing resolution delays can occur in procurement of products and
services, such delays can affect our revenue and profit during the period of delay.

Competition

Our key competitors currently include divisions of large defense contractors such as Computer Sciences
Corporation, General Dynamics, Lockheed Martin Corporation, Northrop Grumman Corporation and Science
Applications International Corporation, as well as a number of mid-size U.S. government contractors with specialized
capabilities, such as CACI, Booz Allen & Hamilton, Stanley, Inc. and SRA International. Because of the diverse
requirements of U.S. government customers and the highly competitive nature of large procurements, corporations
frequently form teams to pursue contract opportunities. The same companies listed as competitors will, at times, team
with us or subcontract to us in the pursuit of new business. We believe that the major competitive factors in our market
are distinctive technical competencies, successful past contract performance, intelligence and military work experience,
price of services, reputation for quality and key management with domain expertise.

Company Information Available on the Internet

Our internet address is www.mantech.com. Through a link to the Investor Relations section of our website,
we make available, free of charge, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current
reports on Form 8-K and any amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of
the Exchange Act, as soon as reasonably practicable after we electronically file such material with, or furnish it
to, the Securities and Exchange Commission (SEC).

You may request a copy of the materials identified in the preceding paragraph, at no cost, by writing or

telephoning us at the following address or telephone number:

ManTech International Corporation
Attention: Investor Relations
12015 Lee Jackson Highway
Fairfax, Virginia 22033-3300
Phone: (703) 218-6000

13

Item 1A. Risk Factors

Forward-Looking and Cautionary Statements

Set forth below are the risks that we believe are material to investors who purchase our common stock. You
should carefully consider the following risks together with the other information contained in or incorporated by
reference into this Annual Report on Form 10-K, including our consolidated financial statements and notes
thereto. This section contains forward-looking statements. You should refer to the explanation of
the
qualification and limitations of forward-looking statements set forth at the beginning of Item 1 of this Annual
Report.

Risks Related to Our Business

We depend on contracts with the U.S. federal government for substantially all of our revenues. If our
relationships with the federal government were harmed, our business, future revenues and growth prospects
could be adversely affected.

We expect that federal government contracts will continue to be the primary source of our revenues for the
foreseeable future. We derived approximately 98% of our revenues from our federal government customers
(consisting primarily of customers in the Intelligence Community, the departments of Defense, State, Homeland
Security and Justice as well as other U.S. federal government agencies) in each of the last three years. Our
business, prospects, financial condition or operating results could be materially harmed if

• We are suspended or debarred from contracting with the federal government or a significant

•

•

government agency;

Our reputation or relationship with government agencies is impaired; or

The government ceases to do business with us, or significantly decreases the amount of business it does
with us.

Among the key factors in maintaining our relationships with federal government agencies are our
the strength of our professional reputation and the

performance on individual contracts and task orders,
relationships of our senior management with our customers.

Federal government spending and mission priorities may change in a manner that adversely affects our
future revenues and limits our growth prospects.

Our business depends upon continued federal government expenditures on intelligence, defense and other
programs that we support. These expenditures have not remained constant over time. For example, the overall
U.S. defense budget declined for periods of time in the late 1980s and the early 1990s, resulting in a slowing of
new program starts, program delays and program cancellations. These reductions caused many defense-related
government contractors to experience declining revenues, increased pressure on operating margins and, in some
cases, net losses. While spending authorizations for intelligence and defense-related programs by the government
has increased in recent years, particularly after the 2001 terrorist attacks and more recently in support of U.S. war
efforts in Southwest Asia. Future levels of expenditures, mission priorities and authorizations for these programs
may decrease, remain constant or shift to programs in areas where we do not currently provide services. Current
federal government spending levels on defense-related programs are in part related to the U.S. military
operations in Afghanistan and Iraq, and may not be sustainable, as a result of changes in government leadership,
policies or priorities. Additionally, our business, prospects, financial condition or operating results could be
materially harmed by the following

•

•

Budgetary constraints affecting federal government spending generally, or specific departments or
agencies in particular, and changes in fiscal policies or available funding;

Changes in federal government programs or requirements;

14

•

•

•

•

•

•

•

Realignment of funds with changed federal government priorities, which may impact the U.S. war
efforts, including reductions in funds for in-theater missions;

Federal government shutdowns (such as that which occurred during the federal government’s 1996
fiscal year) and other potential delays in the government appropriations process;

Delays in the payment of our invoices by federal government offices;

Curtailment of the federal government’s outsourcing of mission critical support and information
technology services;

Competition and consolidation in the information technology industry;

The adoption of new laws or regulations; and

General economic conditions.

These or other factors could cause federal government agencies and departments to reduce their purchases
under contracts, exercise their right to terminate contracts or not exercise options to renew contracts, any of
which could cause us to lose revenue. A significant decline in overall U.S. government spending or a shift in
expenditures away from agencies or programs that we support could cause a material decline to our revenue.

The failure by Congress to approve budgets on a timely basis for the federal agencies we support could
delay procurement of our services and solutions and cause us to lose future revenues.

On an annual basis, Congress must approve budgets that govern spending by the federal agencies that we
support. In years when Congress is not able to complete its budget process before the end of the federal
government’s fiscal year on September 30, Congress typically funds government operations pursuant to a
continuing resolution. A continuing resolution allows federal government agencies to operate at spending levels
approved in the previous budget cycle. When the U.S. government operates under a continuing resolution, it may
delay funding we expect to receive from clients on work we are already performing and will likely result in new
initiatives being delayed or in some cases cancelled.

If we fail to comply with complex procurement laws and regulations, we could lose business and be liable
for various penalties or sanctions.

We must comply with laws and regulations relating to the formation, administration and performance of
federal government contracts. These laws and regulations affect how we conduct business with our federal
government contracts.
In complying with these laws and regulations, we may incur additional costs.
Non-compliance may also allow for the assignment of additional fines and penalties, including contractual
damages. Among the more significant laws and regulations affecting our business are the following:

•

•

•

•

•

The Federal Acquisition Regulation, which comprehensively regulates the formation, administration
and performance of federal government contracts;

The Truth in Negotiations Act, which requires certification and disclosure of all cost and pricing data in
connection with contract negotiations;

The Cost Accounting Standards and Cost Principles, which impose accounting requirements that
govern our right to reimbursement under certain cost-based federal government contracts;

Laws, regulations and executive orders restricting the use and dissemination of information classified
for national security purposes and the export of certain products, services and technical data; and

U.S export controls, which apply when we engage in international work.

Failure to comply with these control regimes can lead to severe penalties, both civil and criminal, and can

include debarment from contracting with the U.S. government.

15

Our contracting agency customers periodically review our performance under and compliance with the
terms of our federal government contracts. If a government review or investigation uncovers improper or illegal
activities, we may be subject to civil or criminal penalties or administrative sanctions, including:

•

•

•

•

•

•

Termination of contracts,

Forfeiture of profits,

Cost associated with triggering of price reduction clauses,

Suspension of payments,

Fines and

Suspension or debarment from doing business with federal government agencies.

Additionally, the civil False Claims Act provides for potentially substantial civil penalties where, for
example, a contractor presents a false or fraudulent claim to the government for payment or approval. Actions
under the civil False Claims Act may be brought by the government or by other persons on behalf of the
government (who may then share a portion of any recovery).

If we fail to comply with these laws and regulations, we may also suffer harm to our reputation, which could
impair our ability to win awards of contracts in the future or receive renewals of existing contracts. If we are
subject to civil and criminal penalties and administrative sanctions or suffer harm to our reputation, our current
business, future prospects, financial condition or operating results could be materially harmed.

The government may also revise its procurement practices or adopt new contracting rules and regulations,
including cost accounting standards, at any time. Any new contracting methods could be costly to satisfy, be
administratively difficult for us to implement and could impair our ability to obtain new contracts.

Unfavorable federal government audit results could subject us to penalties or sanctions, adversely affect our
profitability, harm our reputation and relationships with our customers or impair our ability to win new
contracts.

The Defense Contract Audit Agency (DCAA) and other government agencies routinely audit and investigate
government contracts and systems. These agencies review a contractor’s performance on its contract, cost
structure and compliance with applicable laws, regulations and standards. The DCAA also reviews the adequacy
of, and a contractor’s compliance with, its internal control systems and policies, including the contractor’s
accounting, purchasing, estimating, compensation and management
information systems. Allegations of
impropriety or deficient controls could harm our reputation or influence the award of new contracts. Any costs
found to be improperly allocated to a specific contract will not be reimbursed, while such costs already
reimbursed must be refunded. Therefore, a DCAA audit could materially affect our competitive position and
result in a substantial adjustment to our revenues. DCAA audits for costs incurred on work performed after 2005
have not yet been completed and audits for 2005 are not yet complete for many of our business units. In addition,
government agency audits on a special segment of the Company have not been completed for the years 2002
through 2004 and one of our foreign operations has not yet been audited for 2003 and 2004. While we believe
that the vast majority of such costs will be approved upon final audit, we do not know the outcome of any future
audits and adjustments and, if any future audit adjustments exceed our estimates, our profitability could be
adversely affected. Additionally, if a government audit uncovers improper or illegal activities, we may be subject
to civil and criminal penalties and administrative sanctions, including termination of contracts, forfeiture of
profits, suspension of payments, fines and suspension or debarment from doing business with federal government
agencies.

16

Federal government contracts contain provisions giving government customers a variety of rights that are
unfavorable to us, including the ability to terminate a contract at any time for convenience.

Federal government contracts contain provisions and are subject to laws and regulations that give the
government rights and remedies not typically found in commercial contracts. These provisions may allow the
government to

•

•

•

•

•

•

•

•

•

Terminate existing contracts for convenience, as well as for default;

Reduce orders under, or otherwise modify contracts or subcontracts;

Cancel multi-year contracts and related orders if funds for contract performance for any subsequent
year become unavailable;

Decline to exercise an option to renew a multi-year contract;

Suspend or debar us from doing business with the federal government or with a governmental agency;

Prohibit future procurement awards with a particular agency as a result of a finding of an
organizational conflict of interest based upon prior related work performed for the agency that would
give a contractor an unfair advantage over competing contractors;

Subject the award of contracts to protest by competitors, which may require the contracting federal
agency or department to suspend our performance pending the outcome of the protest;

Claim rights in products and systems produced by us; and

Control or prohibit the export of our products and services.

If the government terminates a contract for convenience, we may recover only our incurred or committed
costs, settlement expenses and profit on work completed prior to the termination. If the government terminates a
contract for default, we may not recover even those amounts and instead may be liable for excess costs incurred
by the government in procuring undelivered items and services from another source. If one of our government
customers were to unexpectedly terminate, cancel or decline to exercise an option to renew one or more of our
significant contracts or programs, our revenues and operating results would be materially harmed.

We derive significant revenues from contracts awarded through a competitive bidding process. This process
can impose substantial costs upon us and we may lose revenue if we fail to compete effectively.

We derive significant revenue from federal government contracts that are awarded through a competitive
bidding process. We expect that a significant portion of our future business will also be awarded through
competitive bidding. Competitive bidding presents a number of risks, including:

•

•

•

•

•

Bidding on programs in advance of the completion of their design, which may result in unforeseen
technological difficulties and cost overruns;

Spending substantial cost and managerial time and effort to prepare bids and proposals for contracts
that may not be awarded to us, which may result in reduced profitability;

Failing to accurately estimate the resources and cost structure that will be required to service any
contract we are awarded;

Incurring expense and delay due to a competitor’s protest or challenge of contract awards made to us,
including the risk that any such protest or challenge could result in the resubmission of bids on
modified specifications, or in the termination, reduction or modification of the awarded contract, which
may result in reduced profitability;

Changes to client bidding practices or government reform of its procurement practices, which may alter
the prescribed contract relating to contract vehicles, contract types and consolidations; and

17

•

Changes in policy and goals by the government providing set-aside funds to small businesses,
disadvantaged businesses and other socio-economic requirements in the allocation of contracts.

If we are unable to win particular contracts that are awarded through the competitive bidding process, in
addition to the risk that our operating results may be adversely affected, we may be unable to operate in the
market for services that are provided under those contracts for a number of years. Even if we win a particular
contract through competitive bidding, our profit margins may be depressed as a result of the costs incurred
through the bidding process.

We may lose money on some contracts if we do not accurately estimate the expenses, time and resources
necessary to satisfy our contractual obligations.

We enter into three types of federal government contracts for our services: cost-plus, time-and-materials and

fixed-price. For our last two fiscal years, we derived revenue from such contracts as follows:

Contract Type

Cost-Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time-and-Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixed-Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2008

2007

20.4% 23.4%
66.1% 62.9%
13.5% 13.7%

Each of these types of contracts, to varying degrees, involves some risk that we could underestimate our cost

of fulfilling the contract, which may reduce the profit we earn or lead to a financial loss on the contract.

•

•

•

Under cost-plus contracts, we are reimbursed for allowable costs and paid a fee, which may be fixed or
performance-based. To the extent that the actual costs incurred in performing a cost-plus contract are
within the contract ceiling and allowable under the terms of the contract and applicable regulations, we
are entitled to reimbursement of our costs, plus a profit. However, if our costs exceed the ceiling or are
not allowable under the terms of the contract or applicable regulations, we may not be able to recover
those costs.

Under time-and-materials contracts, we are reimbursed for labor at negotiated hourly billing rates and
for certain expenses. We assume financial risk on time-and-material contracts because we assume the
risk of performing those contracts at negotiated hourly rates.

Under fixed-price contracts, we perform specific tasks for a fixed price. Compared to cost-plus
involve greater
contracts, fixed-price contracts generally offer higher margin opportunities, but
financial risk because we bear the impact of cost overruns and bear the risk of underestimating the
level of effort required to perform the contractual obligations, which could result in increased costs and
expenses.

Our profits could be adversely affected if our costs under any of these contracts exceed the assumptions we
used in bidding for the contract. Over time, and particularly if we acquire other businesses, our contract mix may
change, thereby potentially increasing our exposure to these risks.

We may not receive the full amount authorized under our contracts and we may not accurately estimate our
backlog, which could adversely affect our future revenues and growth prospects.

As of December 31, 2008, our estimated contract backlog totaled approximately $4.0 billion, of which
approximately $1.2 billion was funded. Backlog is our estimate of the remaining future revenues from existing
signed contracts and assumed exercises of all options relating to such contracts. Backlog also includes estimates
of revenues for solutions that we believe we will be asked to provide in the future under the terms of executed
multiple-award contracts and estimates of revenues from ID/IQ contracts. Our estimates are based on our
experience using such vehicles and similar contracts; however, we cannot assure that all, or any, of such

18

estimated contract revenue will be recognized as revenue. The U.S. government’s ability to modify, curtail or
terminate our major programs or contracts makes the calculation of backlog subject to numerous uncertainties.
There can be no assurance that our backlog projections will result in actual revenue in any particular period, or at
all, or that any contract included in backlog will be profitable. There is a higher degree of risk in this regard with
respect to unfunded backlog, since it contains management’s estimate of amounts expected to be realized on
unfunded contract work that may never be realized as revenues. If we fail to realize as revenues those amounts
included in our backlog, our future revenue and growth prospects may be adversely affected.

If we fail to recruit and retain skilled employees or employees with the necessary security clearances, we
might not be able to perform under our contracts or win new business and our growth may be limited.

To be competitive, we must have employees who have advanced information technology and technical
services skills and who work well with our customers in a government or defense-related environment. Often,
these employees must have some of the highest security clearances in the United States. These employees are in
great demand and are likely to remain a limited resource in the foreseeable future. Recruiting, training and
retention costs can place significant demands on our resources. If we are unable to recruit and retain a sufficient
number of these employees, our ability to maintain and grow our business could be negatively impacted. If we
are required to engage larger numbers of contracted personnel, our profit margins could be adversely affected. In
addition, some of our contracts contain provisions requiring us to commit to staff a program with certain
personnel the customer considers key to our successful performance under the contract. In the event we are
unable to provide these key personnel or acceptable substitutions, the customer may terminate the contract and
we may not be able to recover certain incurred costs.

Federal customers may be consolidating requirements to larger procurements for procurement efficiency.

Federal agencies with whom we conduct business may on occasion find it efficient or desirable to combine
requirements for services with the normal work we typically perform along with other requirements for services
or products that we do not provide. This technique of bundling of requirements reduces and/or eliminates our
ability to compete as a prime contractor for such work. This approach requires that we take a subcontract role
versus a prime role, as such may reduce our revenue opportunities and potentially impact our profit margins. This
approach may also affect contracts that we currently perform as the prime contractor, when completed or
scheduled for recompetition, since those may be combined with other procurement requirements, creating
consolidated procurements for which we either cannot compete due to the inclusion of products or services we do
not provide or our probability of winning may be substantially reduced by the inclusion of such
requirements outside of our normal business services.

Failure to maintain strong relationships with other contractors could result in a decline in our revenues.

In 2008 and 2007, we derived 52.1% and 46.4% of our revenues, respectively, from contracts in which we
acted as a subcontractor to other contractors or to joint ventures that we and other contractors formed to bid on
and execute particular contracts or programs. We expect to continue to depend on relationships with other
contractors for a portion of our revenues for the foreseeable future. Our business, prospects, financial condition
or operating results could be harmed if other contractors eliminate or reduce their subcontracts or joint venture
relationships with us because they choose to establish relationships with our competitors; they choose to directly
offer services that compete with our business; the government terminates or reduces these other contractors’
programs; or the government does not award them new contracts.

Our overall profit margins on our contracts may decrease and our results of operations could be adversely
affected if materials and subcontract revenue grow at a faster rate than labor-related revenues.

Our revenues are generated both from the efforts of our technical staff (labor-related revenue) and from the
receipt of payments for the costs of materials and subcontracts we use in connection with performing our services

19

(materials and subcontract revenue). Generally, our materials and subcontract revenue have lower profit-margins
than our labor-related revenues. If our materials and subcontract revenue grow at a faster rate than labor-related
revenues, our overall profit margins may decrease and our profitability could be adversely affected.

We face risks associated with our international business.

Approximately 1.1% and 1.3% of our total consolidated revenues in 2008 and 2007, respectively, was
generated by our entities outside of the United States. These international business operations are subject to a
variety of risks associated with conducting business internationally, including:

•

•

•

•

•

•

•

Changes in or interpretations of foreign laws or policies that may adversely affect the performance of
our services;

Political instability in foreign countries;

Imposition of inconsistent laws or regulations;

Conducting business in places where laws, business practices and customs are unfamiliar or unknown;

Imposition of limitations on or increase of withholding and other taxes on payments by foreign
subsidiaries or joint ventures;

Compliance with a variety of U.S. laws, including the Foreign Corrupt Practices Act, by us or
subcontractors; and

Compliance with U.S. export control regulations.

Although revenue generated from our international operations have not been significant to date, we do not

know the impact that these regulatory, geopolitical and other factors could have on our business in the future.

Acquisitions or other joint ventures could result in operating difficulties, dilution or other adverse
consequences to our business.

One of our key operating strategies is to selectively pursue acquisitions. We have made a number of
acquisitions in the past and we expect that a significant portion of our future growth will continue to come from
these transactions. We evaluate potential acquisitions, joint ventures and other investments on an ongoing basis.
Our acquisitions pose many risks, including:

• We may not be able to identify suitable acquisition candidates at prices we consider attractive;

• We may not be able to compete successfully for identified acquisition candidates, complete future

acquisitions or accurately estimate the financial effect of acquisitions on our business;

•

Future acquisitions may require us to issue common stock or spend significant cash, resulting in
dilution of ownership or additional leverage;

• We may have difficulty retaining an acquired company’s key employees or customers;

• We may have difficulty integrating acquired businesses, resulting in unforeseen difficulties, such as

incompatible accounting, information management or other control systems;

•

•

Acquisitions may disrupt our business or distract our management from other responsibilities; and

As a result of an acquisition, we may need to record write-downs from future impairments of intangible
assets, which could reduce our future reported earnings.

In connection with any acquisition that we make, there may be liabilities that we fail to discover or that we
inadequately assess. Acquired entities may not operate profitably or result in improved operating performance.
Additionally, we may not realize anticipated synergies. If our acquisitions perform poorly, our business and
financial results could be adversely affected.

20

Many of our federal government customers execute their procurement budgets through multiple award
contracts under which we are required to compete for post-award orders, or for which we may not be
eligible to compete, potentially limiting our ability to win new contracts and increase revenue.

Budgetary pressures and reforms in the procurement process have caused many U.S. federal government
customers to increasingly purchase goods and services through multiple award ID/IQ contracts and other
multiple award and/or GWAC vehicles. These contract vehicles require that we make sustained post-award
efforts to obtain task orders under the relevant contract. There can be no assurance that we will obtain revenues
or otherwise sell successfully under these contract vehicles. Our failure to compete effectively in this
procurement environment could harm our operating results.

Covenants in our credit facility may restrict our financial and operating flexibility.

We maintain a credit agreement with Bank of America N.A. The agreement provides for up to $300 million,
with an option to increase an additional $100 million, in available borrowings through April 2012. Under the
agreement, we are required to maintain specific financial covenants related to a leverage ratio and fixed charge
coverage. The agreement also places limitations on additional borrowings, mergers and related-party
transactions, on payment of dividends and with respect to capital expenditures. Borrowings under the agreement
are collateralized by our assets and bear interest at the Eurodollar Rate, or the lender’s base rate, plus market-rate
spreads that are determined based on the Company’s leverage ratio calculation. Our ability to satisfy these
financial ratios can be affected by events beyond our control and we cannot assure you that we will meet these
ratios. Default under our credit facility could allow the lenders to declare all amounts outstanding to be
immediately due and payable. We have pledged substantially all of our assets to secure the debt under our credit
facility. If the lenders declare amounts outstanding under the credit facility to be due, the lenders could proceed
against those assets. Any event of default, therefore, could have a material adverse effect on our business if the
creditors determine to exercise their rights. We also may incur future debt obligations that might subject us to
restrictive covenants that could affect our financial and operational flexibility, restrict our ability to pay
dividends on our common stock or subject us to other events of default.

From time-to-time we may require consents or waivers from our lenders to permit actions that are prohibited
by our credit facility. If our lenders refuse to provide waivers of our credit facility’s restrictive covenants and/or
financial ratios, then we may be in default under our credit facility, and we may be prohibited from undertaking
actions that are necessary or desirable to maintain and expand our business.

Recent events affecting the credit markets may restrict our ability to access additional financing.

The United States and worldwide capital and credit markets have recently experienced significant price
volatility, dislocations and liquidity disruptions, which have caused market prices of many stocks to fluctuate
substantially and the spreads on prospective debt financings to widen considerably. These circumstances have
materially impacted liquidity in the financial markets, making terms for certain financings less attractive, and in
some cases have resulted in the unavailability of financing. Continued uncertainty in the capital and credit
markets may negatively impact our business, including our ability to access additional financing at reasonable
terms, which may negatively affect our ability to make future acquisitions. A prolonged downturn in the financial
markets may cause us to seek alternative sources of potentially less attractive financing, and may require us to
adjust our business plan accordingly. These events also may make it more difficult or costly for us to raise capital
through the issuance of our equity securities. The disruptions in the financial markets may have a material
adverse effect on the market value of our common stock and other adverse effects on our business.

Our employees or subcontractors may engage in misconduct or other improper activities, which could cause
us to lose customers or affect our ability to contract with the federal government.

Because we are a government contractor, should an employee or subcontractor fraud or other misconduct
occur, such occurrences could have an adverse impact on our business and reputation. Misconduct by employees,
subcontractors or joint venture partners could include intentional failures to comply with federal laws including:

21

federal government procurement regulations; proper handling of sensitive or classified information; compliance
with the terms of our contracts that we receive; falsifying time records or failures to disclose unauthorized or
unsuccessful activities to us. These actions could lead to civil, criminal and/or administrative penalties (including
fines, imprisonment, suspension and/or debarment from performing federal government contracts) and harm our
reputation. The precautions we take to prevent and detect such activity may not be effective in controlling
unknown or unmanaged risks or losses, such misconduct by employees, subcontractors or joint venture partners
could result in serious civil or criminal penalties, sanctions or harm to our reputation, which could cause us to
lose contracts or cause a reduction in revenue.

We may be liable for systems and service failures.

to our customers’ operations,

We create, implement and maintain information technology and technical services solutions that are often
critical
including those of federal, state and local governments. We have
experienced and may in the future experience some systems and service failures, schedule or delivery delays and
other problems in connection with our work. If our solutions, services, products or other applications have
significant defects or errors, are subject to delivery delays or fail to meet our customers’ expectations, we may:

•

•

•

•

Lose revenues due to adverse customer reaction;

Be required to provide additional services to a customer at no charge;

Receive negative publicity that could damage our reputation and adversely affect our ability to attract
or retain customers; and

Suffer claims for substantial damages against us.

In addition to any costs resulting from product warranties, contract performance or required corrective
action, these failures may result in increased costs or loss of revenues if they result in customers postponing
subsequently scheduled work, canceling contracts or failing to renew contracts.

While many of our contracts with the federal government limit our liability for damages that may arise from
negligence in rendering services to our customers, we cannot be sure that these contractual provisions will
protect us from liability for damages if we are sued. Furthermore, our errors and omissions and product liability
insurance coverage may not continue to be available on reasonable terms or in sufficient amounts to cover one or
more large claims, in addition the insurer may disclaim coverage as to some types of future claims. The
successful assertion of any large claim against us could seriously harm our business. Even if unsuccessful, these
claims could result in significant legal and other costs that may be a distraction to our management and/or may
harm our reputation.

Security breaches in classified government systems could adversely affect our business.

Many of the programs we support and systems we develop, install and maintain involve managing and
protecting information involved in intelligence, national security and other classified government functions.
While we have programs designed to comply with relevant security laws, regulations and restrictions, a security
breach in one of these systems could cause serious harm to our business, damage our reputation and prevent us
from being eligible for further work on critical classified systems for federal government customers. Losses that
we could incur from such a security breach could exceed the policy limits that we have for errors and omissions
and product liability insurance coverage. Damage to our reputation or limitations on our eligibility for additional
work resulting from a security breach in one of the systems we develop, install and maintain could materially
reduce our revenue.

Our business depends upon obtaining and maintaining required security clearances.

Many of our federal government contracts require our employees to maintain various levels of security
clearances and we are required to maintain certain facility security clearances complying with the Department of
Defense and Intelligence Community requirements. Obtaining and maintaining security clearances for employees

22

involves a lengthy process and it is difficult to identify, recruit and retain employees who already hold security
clearances. If our employees are unable to obtain or retain security clearances or if our employees who hold
security clearances terminate employment with us, the customer whose work requires cleared employees could
terminate the contract or decide not to renew it upon its expiration. In addition, we expect that many of the
contracts on which we will bid will require us to demonstrate our ability to obtain facility security clearances and
perform work with employees who hold specified types of security clearances. To the extent we are not able to
obtain facility security clearances or engage employees with the required security clearances for a particular
contract, we may not be able to bid on or win new contracts, or effectively re-bid on expiring contracts.

Risks Related to Our Stock

Our quarterly operating results may fluctuate.

Our quarterly revenues and operating results may fluctuate as a result of a number of factors, many of which
are outside of our control. For these reasons, comparing our operating results on a period-to-period basis may be
of limited significance in some cases, as such you should not rely on our past results as an indication of our
future performance. While our financial results may be negatively affected by any of the risk factors identified in
this section of our Form 10-K, a number of factors could cause our revenues, cash flow and operating results to
vary from quarter-to-quarter, including:

•

•

•

•

•

•

•

•

•

•

•

Timing of award or performance incentive fee notices;

Fluctuations in revenues earned on fixed-price contracts and contracts with a performance-based fee
structure;

Commencement, completion or termination of contracts during any particular quarter;

Reallocation of funds to customers due to priority;

Timing of significant bid and proposal costs;

Variable purchasing patterns under government contracts, BPAs and ID/IQ contracts;

Seasonal or quarterly fluctuations in our workdays and staff utilization rates;

Strategic decisions by us or our competitors, such as acquisitions, divestitures, spin-offs and joint
ventures;

Changes in Presidential administrations and senior federal government officials that affect the timing
of technology procurement;

Changes in federal government policy or budgetary measures that adversely affect government
contracts in general; and

Increased purchase requests from customers for equipment and materials in connection with the federal
government’s fiscal year end that may affect our quarter operating results.

Because a relatively large amount of our expenses are fixed, cash flows from our operations may vary
significantly as a result of changes in the volume of services provided under existing contracts and the number of
contracts that are commenced, completed or terminated during any quarter. We incur significant operating
expenses during the start-up and early stages of large contracts and typically we do not receive corresponding
payments in that same quarter. We may also incur significant or unanticipated expenses when a contract expires,
terminates or is not renewed.

Mr. Pedersen, our Chairman and Chief Executive Officer, effectively controls our Company, and his
interests may not be aligned with those of other stockholders.

As of December 31, 2008, Mr. Pedersen owned approximately 39.3% of our total outstanding shares of
common stock. Holders of our Class B common stock are entitled to ten votes per share. Mr. Pedersen

23

beneficially owned 13,958,345 shares of Class B common stock as of December 31, 2008, thus he owned or
controlled approximately 86.6% of the combined voting power of our stock as of December 31, 2008.
Accordingly, Mr. Pedersen controls the vote on all matters submitted to a vote of our stockholders. As long as
Mr. Pedersen beneficially owns a majority of the combined voting power of our common stock, he will have the
ability, without the consent of our public stockholders, to elect all members of our Board of Directors and to
control our management and affairs.

Mr. Pedersen’s voting control may have the effect of preventing or discouraging transactions involving an
actual or a potential change of control of the Company, regardless of whether a premium is offered over then-
current market prices. Mr. Pedersen will be able to cause a change of control of the Company. Mr. Pedersen
could also cause a registration statement to be filed and to become effective under the Securities Act of 1933,
thereby permitting him to freely sell or transfer the shares of common stock that he owns. In addition, the
interests of Mr. Pedersen may conflict with the interests of other holders of our common stock.

Provisions in our charter documents and Delaware law may inhibit potential acquisition bids that you and
other stockholders may consider favorable, and the market price of our Class A common stock my be lower
as a result.

There are provisions in our certificate of incorporation and bylaws that make it more difficult for a third
party to acquire, or attempt to acquire, control of our Company, even if a change of control were considered
favorable by you and other stockholders. Among the provisions that could have an anti-takeover effect, are
provisions relating to the following

•

•

•

•

The high vote nature of our Class B common stock;

The ability of the Board of Directors to issue preferred stock;

Stockholders cannot take action by written consent; and

Advance notice requirements for director nominations or other proposals by our stockholders.

Item 1B. Unresolved SEC Staff Comments

We have not received any written comments from the SEC staff regarding our periodic or current reports

under the Exchange Act that remain unresolved.

Item 2. Properties

We lease our office facilities and we do not own any facilities or real estate materially important to our
operations. Our facilities are leased in close proximity to our customers. Since 1992, we have leased our
corporate headquarters office building in Fairfax, Virginia. The lease on this facility expires in March 2020. As
of December 31, 2008, we leased 32 additional operating facilities throughout the metropolitan Washington, D.C.
area and 56 facilities in other parts of the United States. We also have employees working at customer sites
throughout the United States and in other countries.

We believe our current facilities are adequate to meet our current needs. We do not anticipate any
significant difficulty in renewing our leases or finding alternative space to lease upon the expiration of our leases
and to support our future growth. Lease expiration dates range from years 2009 through 2020.

24

The following table provides information concerning certain of our leased properties.

Lease Properties as of
December 31, 2008

Approximate
Square Footage

General
Usage

Chantilly, VA
Vienna, VA
Fairfax, VA
Herndon, VA
Arlington, VA
Hanover, MD
Springfield, VA
Lorton, VA
Lexington Park, MD
Huntsville, AL
Bethesda, MD
Fairmont, WV
Sarasota, FL
Other Locations
Foreign Locations

208,000
99,000
92,000
90,000
83,000
73,000
59,000
51,000
43,000
38,000
35,000
22,000
20,000
300,000
25,000

General Office
General Office
General Office
General Office
General Office
General Office and Warehouse
General Office
General Office
General Office
General Office and Lab
General Office
General Office
General Office
General Office and Warehouse
General Office

Item 3. Legal Proceedings

We are subject to certain legal proceedings, government audits, investigations, claims and disputes that arise
in the ordinary course of our business. Like most large government defense contractors, our contract costs are
audited and reviewed on a continual basis by an in-house staff of auditors from the DCAA. In addition to these
routine audits, we are subject from time-to-time to audits and investigations by other agencies of the federal
government. These audits and investigations are conducted to determine if our performance and administration of
our government contracts are compliant with contractual requirements and applicable federal statutes and
regulations. An audit or investigation may result in a finding that our performance, systems and administration is
compliant or, alternatively, may result in the government initiating proceedings against us or our employees,
including administrative proceedings seeking repayment of monies, suspension and/or debarment from doing
business with the federal government or a particular agency or civil or criminal proceedings seeking penalties
and/or fines. Audits and investigations conducted by the federal government frequently span several years.

Although we cannot predict the outcome of these and other legal proceedings, investigations, claims and
disputes, based on the information now available to us, we do not believe the ultimate resolution of these matters,
either individually or in the aggregate, will have a material adverse effect on our business, prospects, financial
condition or operating results.

Item 4. Submission of Matters to a Vote of Security Holders

No matters were submitted to a vote of security holders during the fourth quarter of the year ended

December 31, 2008.

25

PART II

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

Market Information

Our Class A common stock has been quoted on the Nasdaq Stock Market under the symbol “MANT” since
our initial public offering on February 7, 2002. The following table sets forth, for the periods indicated, the high
and low prices of our shares of common stock, as reported on the Nasdaq Stock Market.

2008

First Quarter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2007

High

Low

$48.34
53.98
62.06
59.92

$36.60
42.85
46.65
40.22

High

Low

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Quarter
Second Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$38.04
34.49
37.80
48.45

$32.42
30.37
29.71
34.87

There is no established public market for our Class B common stock.

As of February 18, 2009, there were 39 holders of record of our Class A common stock and 3 holders of
record of our Class B common stock. The number of holders of record of our Class A common stock is not
representative of the number of beneficial holders because many of the shares are held by depositories, brokers or
nominees.

Dividend Policy

Currently, we intend to retain any earnings for the future operation and growth of our business. In addition,
our credit facility restricts us from paying cash dividends to holders of our common stock. As a result, we do not
anticipate paying any cash dividends in the foreseeable future. No dividends have been declared on any class of
our common stock since our initial public offering in 2002. Any future dividends declared would be at the
discretion of our Board of Directors and would depend, among other factors, upon our results of operations,
financial condition and cash requirements, as well as the terms of our credit facility and other financing
agreements at the time such payment is considered.

Recent Sales of Unregistered Securities

We did not issue or sell any securities in fiscal 2008 that were not registered under the Securities Act of
1933. The issuance of shares to the Employee Stock Ownership Plan did not constitute sales within the meaning
of the Securities Act.

Equity Compensation Plan Information

Information regarding our equity compensation plans and the securities authorized for issuance there under

is incorporated by reference in Item 12.

26

Stock Performance Chart

The following stock performance graph compares the graph of ManTech common stock to the Nasdaq Stock
Market (U.S.) Index, Standard & Poor’s MidCap 400 Index*, Standard & Poor’s SmallCap 600 Index**, the
Russell 2000 Index, our new Peer Group Index and our old Peer Group Index***. The period measured is
December 31, 2003 to December 31, 2008. The graph assumes an investment of $100 for each of the groups and
also assumes reinvestment of all dividends. No cash dividend has been declared on ManTech common stock. We
have added the Standard & Poor’s MidCap 400 Index to our performance graph this year, and have also changed
the composition of our Peer Group. We have included Standard & Poor’s SmallCap 600 Index in this year’s
performance graph for comparison purposes. These changes are further explained below.

Comparison of 5 Year Cumulative Total Return
Assumes Initial Investment of $100
December 2008

250.00

200.00

150.00

100.00

50.00

0.00

2003

2004

2005

2006

2007

2008

MANTECH INTL -A

Old Peer Group Only

New Peer Group Only

S&P 400 Mid Cap Index

S&P 600 Index - Total Return

NASDAQ Composite-Total Returns

Russell 2000 Index Total Return

2003

2004

2005

2006

2007

2008

ManTech International Corporation . . . . . . . . . . .
S&P 400 Mid Cap Index . . . . . . . . . . . . . . . . . . . .
S&P 600 Index . . . . . . . . . . . . . . . . . . . . . . . . . . .
NASDAQ Composite . . . . . . . . . . . . . . . . . . . . . .
Russell 2000 Index . . . . . . . . . . . . . . . . . . . . . . . .
New Peer Group . . . . . . . . . . . . . . . . . . . . . . . . . .
Old Peer Group . . . . . . . . . . . . . . . . . . . . . . . . . . .

$100.00
$100.00
$100.00
$100.00
$100.00
$100.00
$100.00

$ 95.14
$116.47
$122.65
$109.16
$118.32
$142.05
$137.75

$111.65
$131.09
$132.07
$111.47
$123.72
$125.20
$121.53

$147.61
$144.61
$152.03
$123.05
$146.42
$116.61
$113.61

$175.65
$156.14
$151.58
$140.12
$144.16
$133.48
$117.85

$217.23
$ 99.55
$104.47
$ 84.12
$ 95.44
$119.45
$111.33

Explanation for changes in indices used to benchmark our stock price performance:

* We have added the Standard & Poor’s MidCap 400 Index to our stock price performance comparisons for

2008, because ManTech was added to the S&P MidCap 400 Index in 2008.

**

In connection with being added to the Standard & Poor’s MidCap 400 Index this year, we were removed
from the Standard & Poor’s SmallCap 600 Index. The Standard & Poor’s SmallCap 600 Index is included in
our performance graph for this year for comparison purposes only.

*** In 2007, our Peer Group consisted of CACI International, Inc.; Dynamics Research Corporation; MTC
Technologies, Inc.; NCI, Inc.; Science Applications International Corporation; SI International, Inc.; SRA
International Inc.; and Stanley, Inc. In 2008, we changed our Peer Group to omit MTC Technologies and SI
International, since they were acquired and ceased trading during 2008. We have also added DynCorp
International Inc., because they are in our industry and are a similar size.

27

Item 6. Selected Financial Data

The selected financial data presented below for each of the five years ended December 31, 2008 is derived
from our audited consolidated financial statements. The selected financial data presented below should be read in
conjunction with our consolidated financial statements, the notes to our consolidated financial statements and
Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Year Ended December 31,

2008 (a)

2007 (b)

2006 (c)

2005 (d)

2004 (e)

(In thousands, except per share amounts)

Statement of Income Data:
Revenues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative expenses . . . . . . . . .

$1,870,879
1,565,198
152,323

$1,448,098
1,214,150
120,244

$1,137,178
944,150
102,378

$ 980,289
805,853
90,258

$826,928
677,223
81,238

Operating income . . . . . . . . . . . . . . . . . . . . . . . .
Interest expense . . . . . . . . . . . . . . . . . . . . . . . . .
Interest income . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
Other items, net

153,358
(3,978)
812
(233)

113,704
(5,103)
1,261
263

90,650
(2,375)
809
1,337

84,178
(3,165)
894
3,372

68,467
(2,422)
495
554

Income from continuing operations before

income taxes and equity earnings . . . . . . . . .
Provision for income taxes . . . . . . . . . . . . . . . .
Earnings (losses) in equity of unconsolidated

subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gain on disposal of equity method

investment

. . . . . . . . . . . . . . . . . . . . . . . . . . .

149,959
(59,667)

110,125
(42,798)

90,421
(34,825)

85,279
(34,137)

67,094
(25,743)

—

—

—

—

—

—

471

1,590

567

—

Income from continuing operations . . . . . . . . . .

90,292

67,327

55,596

53,203

41,918

(Loss) gain from discontinued operations, net

of taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on disposal of discontinued operation, net
of taxes (sold to CEO) . . . . . . . . . . . . . . . . . .

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Basic earnings per share from continuing

operations—Class A and B (f) . . . . . . . . . . . .

$

$

Diluted earnings per share from continuing

—

—

(458)

(4,895)

(9,010)

(17,211)

338

—

—

—

90,292

$

67,207

$

50,701

$ 44,193

$ 24,707

2.58

$

1.97

$

1.66

$

1.62

$

1.30

operations—Class A and B (f) . . . . . . . . . . . .

$

2.55

$

1.95

$

1.64

$

1.60

$

1.29

Balance Sheet Data:
Cash and cash equivalents . . . . . . . . . . . . . . . . .
Working capital . . . . . . . . . . . . . . . . . . . . . . . . .
Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . .
Total stockholders’ equity . . . . . . . . . . . . . . . . .
Statement of Cash Flows Data:
Cash flow from operating activities . . . . . . . . . .
Cash flow from investing activities . . . . . . . . . .
Cash flow from financing activities . . . . . . . . . .

$
4,375
$ 140,744
$1,021,712
$
$ 680,536

8,048
$
$
68,409
$ 937,503
39,000
$ 551,305

$
41,510
$ 168,189
$ 613,252
$
$ 459,016

$
5,678
$ 103,576
$ 555,985
21
$ 378,582

$ 22,963
$127,034
$468,402
104
$
$320,396

— $

— $

$

$ 127,266
$ 27,285
$ (39,162) $ (275,286) $ (25,709) $(105,617) $ (17,440)
3,854
$ (91,777) $ 178,500

$ (22,815) $ 26,846

$ 61,486

84,356

63,324

$

$

a) On November 28, 2008, we acquired EWA for $12.3 million, which includes a $0.3 million estimated
working capital adjustment. The purchase price included a working capital adjustment, which is subject to a
closing balance sheet review. EWA added $1.8 million in revenue to our 2008 results. For further
information on acquisitions see Note 3 to the consolidated financial statements in Item 8.

28

On August 29, 2008, we acquired ETG for $25.1 million, which includes $0.1 million in transaction fees.
ETG added $3.4 million in revenue to our 2008 results. For further information on acquisitions see Note 3 to
the consolidated financial statements in Item 8.

Cash outflows from investing activities were primarily the result of our acquisitions of EWA and ETG, as
noted above. Cash outflows from financing activities are primarily the result of paying down our credit
facility with cash from operations; this was slightly offset by borrowings under our credit facility to finance
our aforementioned acquisitions.

b) On December 18, 2007, we acquired MBI for $78.9 million, which includes $0.4 million in transaction fees.
MBI added $1.2 million in revenue to our 2007 results. For further information on acquisitions see Note 3 to
the consolidated financial statements in Item 8.

On May 7, 2007 we acquired SRS for $199.1 million, which includes $1.2 million in transaction fees. SRS
added $139.1 million in revenue to our 2007 results. For further information on acquisitions see Note 3 to
the consolidated financial statements in Item 8.

On February 23, 2007 we sold our MSM Security Services subsidiary business (MSM) to MSM Security
Services Holdings, LLC for $3.0 million in cash. The sale resulted in a pre-tax gain of $0.6 million. MSM
Security Services Holdings, LLC is solely owned by George J. Pedersen, our Chairman and Chief Executive
Officer (CEO). For further information on the sale of MSM see Note 15 to the consolidated financial
statements in Item 8.

In January 2007, Mr. Pedersen received a distribution of 609,296 shares of Class B common stock, which
had been held by the ManTech International Corporation Supplemental Executive Retirement Plan for the
benefit of George J. Pedersen (GJP SERP). We recognized an $8.6 million tax benefit on the distribution
from the trust. The tax benefit was recorded to additional paid-in-capital.

c) On October 5, 2006, we acquired GRS Solutions, Inc (GRS) for $17.8 million in cash. Subsequent to the
acquisition, contingent consideration of $2.2 million was paid to the shareholders of GRS. GRS added $2.7
million in revenue to our 2006 results. For further information on acquisitions see Note 3 to the consolidated
financial statements in Item 8.

On October 31, 2006, we sold assets related to our NetWitness® operation to the NetWitness Acquisition
Corporation for $2.0 million in cash and an equity stake of less than 5% in the new company. We recorded
approximately a $1.0 million pre-tax gain on the sale.

On January 1, 2006, we adopted Statement of Financial Accounting Standards (SFAS) No. 123 (revised
2004), Share-Based Payment, or SFAS 123(R). As a result, we recorded $5.7 million of expense in general
and administrative expenses. For further information, see Note 10 to the consolidated financial statements in
Item 8.

d) On February 11, 2005, we sold our ManTech Environmental Technology, Inc. (METI) subsidiary to another
company for $7.0 million, which resulted in a pre-tax gain of approximately $3.7 million. METI had
revenues of $1.4 million and $13.2 million in 2005 and 2004, respectively.

During the first quarter of 2005, we decided to exit the personnel security investigation business and sell
MSM. We classified our MSM subsidiary as held for sale in our consolidated balance sheets and in
discontinued operations for our consolidated statement of income. For further information see Note 15 to the
consolidated financial statements in Item 8.

On May 31, 2005, we acquired Gray Hawk Systems, Inc. for $101.8 million, including acquisition-related
cost. As a result of this acquisition, revenue increased $52.9 million in 2005.

During December 2005, we sold our 40 percent interest in Vosper-ManTech joint venture in the United
Kingdom for approximately $4.3 million including accrued dividends. The sale resulted in an approximate
$1.6 million pre tax gain recorded in gain on disposal of equity method investment.

29

e) On February 27, 2004, we acquired certain operations from Affiliated Computer Services, Inc. (ACS) for
$6.5 million, and on June 1, 2004, acquired additional operations from ACS for $1.5 million. As a result of
these acquisitions, revenue increased $27.5 million in 2004.

During 2004, we experienced a significant decline in our MSM business primarily related to losses recorded
on a Defense Security Services contract, which ended in the fourth quarter of 2004. For 2004, MSM’s
revenues were down $18.9 million from 2003, which contributed to the loss from discontinued operations.

f)

The holders of each share of Class A common stock are entitled to one vote per share and the holders of
each share of Class B common stock are entitled to ten votes per share. For more information on earnings
per share including the two class method see Note 4 to the consolidated financial statements in Item 8.

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

The following discussion of our financial condition and results of operations should be read together with
the consolidated financial statements and the notes to those statements included in Item 8 of this document. This
discussion contains forward-looking statements that involve risks and uncertainties. This discussion addresses
primarily our continuing operations, except in the discussion under the heading, “Discontinued Operations.” For
more information on our discontinued operations, please see Note 15 to our consolidated financial statements.

Overview

We are a provider of innovative technologies and solutions for mission-critical national security programs
for the Intelligence Community; the departments of Defense, State, Homeland Security and Justice; the Space
Community; and other U.S. federal government customers. Our expertise includes engineering, systems
information assurance and security architecture,
integration,
software services, enterprise architecture,
intelligence operations and analysis support, network and critical
information
infrastructure protection,
information technology, communications integration and engineering
operations and computer forensics,
support. With approximately 7,900 highly qualified employees, we operate in the United States and
approximately 40 countries worldwide.

We derive revenue primarily from contracts with U.S. government agencies that are focused on national
security and as a result, funding for our programs is generally linked to trends in U.S. government spending in
the areas of defense, intelligence and homeland security. Related to the evolving terrorist threats and world
events, the U.S. government has substantially increased its overall defense, intelligence and homeland security
budgets. Our revenue increased mainly as a result of the expansion of our sustainment and countermine support
provided in military deployed environments with U.S. and allied forces in support of peace-keeping efforts
worldwide; efforts involving telecommunications, infrastructure, maintenance and repair; from our work with
intelligence agencies in U.S; and the acquisitions that occurred in the past three years.

For the three years ended December 31, 2008, over 93% of our revenues were derived from our customers
in the Intelligence Community and the Department of Defense. These customers include the Office of the
Secretary of Defense; the Department of State; the Department of Homeland Security; various intelligence
agencies; federal intelligence and terrorism task forces; the U.S. Army, Navy, Air Force and Marine Corps; and
joint military commands. We also provide solutions to federal government civilian agencies, including NASA
and PTO, as well as to state and local governments and commercial customers. The following table shows our
revenue from each type of customer as a percentage of our total revenue for the period shown.

Department of Defense and intelligence agencies . . . . . . . . . . . . . . . . . . . . .
Federal civilian agencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State agencies, international agencies and commercial entities . . . . . . . . . . .

93.8% 93.3% 95.2%
2.6%
4.5%
4.3%
2.2%
2.2%
1.9%

Total Revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.0% 100.0% 100.0%

Years Ended December 31,

2008

2007

2006

30

We provide our services and solutions under three types of contracts: time and materials; cost reimbursable;
and fixed price. Our contract mix varies from year-to-year due to numerous factors, including our business
strategies and federal government procurement objectives. The following table shows our revenue from each of
these types of contracts as a percentage of our total revenue for the periods shown.

Years Ended December 31,

2008

2007

2006

Cost reimbursable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time and materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixed price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20.4% 23.4% 24.7%
66.1% 62.9% 64.5%
13.5% 13.7% 10.8%

Total Revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.0% 100.0% 100.0%

Time and materials contracts. Under time and materials contracts, we are reimbursed for labor at fixed
hourly rates and generally reimbursed separately for allowable materials, costs and expenses. To the extent that
our actual labor costs under a time and materials contract are higher or lower than the billing rates under the
contract, our profit under the contract may be either greater or less than we anticipated or we may suffer a loss
under the contract. We recognize revenues under time and materials contracts by multiplying the number of
direct labor hours expended by the contract billing rates and adding the effect of other billable direct costs. In
general, we realize a higher profit margin on work performed under time and materials contracts than cost
reimbursable contracts.

Cost reimbursable contracts. Under cost reimbursable contracts, we are reimbursed for costs that are
determined to be reasonable, allowable and allocable to the contract and paid a fee representing the profit margin
negotiated between us and the contracting agency, which may be fixed or performance based. Under cost
reimbursable contracts we recognize revenues and an estimate of applicable fees earned as costs are incurred. We
consider fixed fees under cost reimbursable contracts to be earned in proportion to the allowable costs incurred in
performance of the contract. For performance based fees under cost reimbursable contracts, we recognize the
relevant portion of the expected fee to be awarded by the client at the time such fee can be reasonably estimated,
based on factors such as our prior award experience and communications with the client regarding performance.
For cost reimbursable contracts with performance-based fee incentives that are subject to the provisions of SEC
Topic 13, Revenue Recognition, we recognize the relevant portion of the fee upon customer approval. In general,
cost reimbursable contracts are the least profitable of our government contracts.

Fixed price contracts. Under fixed price contracts, we perform specific tasks for a fixed price. Compared to
cost reimbursable and time and materials contracts, fixed price contracts generally offer higher profit margin
opportunities but involve greater financial risk because we bear the impact of cost overruns in return for the full
benefit of any cost savings. We generally do not undertake complex, high-risk work, such as long-term software
development, under fixed price terms. Fixed price contracts may include either a product delivery or specific
service performance over a defined period. Revenue on fixed price contracts that provide for the Company to
render services throughout a period is recognized as earned according to contract terms as the service is provided
on a proportionate performance basis. These contracts are generally less than six months in duration. For fixed
price contracts that provide for the delivery of a specific product with related customer acceptance provisions,
revenues are recognized as those products are delivered and accepted.

We derive a majority of our revenues from contracts directly with the U.S. government or as a subcontractor
to other providers of services to the U.S. government. The following table shows our revenues as prime
contractor and as subcontractor as a percentage of our total revenue for the following periods:

Prime contract revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subcontract revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47.9% 53.6% 67.7%
52.1% 46.4% 32.3%

Total Revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.0% 100.0% 100.0%

Years Ended December 31,

2008

2007

2006

31

Our prime contract revenue as a percentage of our total revenue decreased from 2006 to 2008 as customers
increased the purchase of goods and services through larger, more consolidated contract vehicles. However, we
expect the prime contract revenue percentage to increase in future periods due to the award of the Countermine
prime contract for Route Clearance in August 2008.

Revenue

Substantially all of our revenue is derived from services and solutions provided to the federal government or
to prime contractors supporting the federal government, including services provided by our employees, our
subcontractors and through solutions that includes third-party hardware and software that we purchase and
integrate as a part of our overall solutions. The level of hardware and software purchases we made in support of
solutions we provide to our clients increased significantly during 2008. These requirements may vary from
period-to-period depending on specific contract and client requirements. Since we earn higher profits from labor
services that our employees provide compared with subcontracted efforts and other reimbursable items such as
hardware and software purchases for clients, we seek to optimize our labor services on all of our engagements.

Cost of Services

Cost of services primarily includes direct costs incurred to provide our services and solutions to customers.
The most significant portion of these costs are direct labor costs, including salaries and wages, plus associated
fringe benefits of our employees directly serving customers, in addition to the related management, facilities and
infrastructure costs. Cost of services also includes other direct costs, such as the costs of subcontractors and
outside consultants and third-party materials, including hardware or software that we purchase and provide to the
customer as part of an integrated solution. Since we earn higher profits on our own labor services, we expect the
ratio of cost of services as a percent of revenue to decline when our labor services mix increases relative to
subcontracted labor or third-party material. Conversely, as subcontracted labor or third-party material purchases
for customers increase relative to our own labor services, we expect the ratio of cost of services as a percent of
revenue to increase. Changes in the mix of services and equipment provided under our contracts can result in
variability in our contract margins.

General and Administrative Expenses

General and administrative expenses include the salaries and wages, plus associated fringe benefits of our
employees not performing work directly for clients. Among the functions covered by these costs are facilities,
corporate business development, bid and proposal, contracts administration, finance and accounting, legal,
corporate governance and executive and senior management. In addition, we include stock-based compensation,
as computed under SFAS 123(R), as well as depreciation expense of $4.2 million and amortization expense of
$10.4 million related to the general and administrative function for the year ended December 31, 2008.
Depreciation and amortization expenses include the depreciation of computers, furniture and other equipment,
the amortization of third party software we use internally, leasehold improvements and intangible assets.
Identifiable intangible assets include customer relationships and contract backlogs acquired in business
combinations are amortized over their estimated useful lives.

Interest Expense

Interest expense is primarily related to interest expense incurred or accrued under our outstanding

borrowings and notes payable, deferred financing charges and interest on capital leases.

Interest Income

Interest income is primarily from cash on hand and notes receivable.

32

Provision for Income Taxes

Our effective income tax rates are approximately 39.8%, 38.9% and 38.5% for the years ended 2008, 2007
and 2006, respectively. The higher tax rate in 2008 as compared to 2007 related primarily to the impact of
non-deductible losses related to our Employee Supplemental Savings Plan, which were partially offset by
research and development credits.

Results of Operations

Year Ended December 31, 2008 Compared to Year Ended December 31, 2007

Consolidated Statements of Income

The following table sets forth certain items from our consolidated statements of income and the relative
percentages that certain items of expense and earnings bear to revenue as well as the year-over-year change from
December 31, 2007 to December 31, 2008.

Years Ended December 31,

2008

2007

2008

2007

Year-to-Year
Change

2007 to 2008

Dollars

Percentages

Dollars

Percent

(dollars in thousands)

REVENUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services . . . . . . . . . . . . . . . . . . . . .
General and administrative expenses . . . . .

$1,870,879
1,565,198
152,323

$1,448,098
1,214,150
120,244

100.0% 100.0% $422,781
83.7% 83.8% 351,048
32,079
8.1% 8.3%

29.2%
28.9%
26.7%

OPERATING INCOME . . . . . . . . . . . . . . . . . .
Interest expense . . . . . . . . . . . . . . . . . . . . .
Interest income . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
Other income (expense), net

153,358
(3,978)
812
(233)

113,704
(5,103)
1,261
263

8.2% 7.9%
0.2% 0.4%
0.0% 0.1%
0.0% 0.0%

39,654
1,125
(449)
(496)

34.9%
-22.0%
-35.6%
-188.6%

INCOME FROM CONTINUING

OPERATIONS BEFORE INCOME
TAXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for income taxes . . . . . . . . . . . .

INCOME FROM CONTINUING

OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . .
Loss from discontinued operations, net of

taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of discontinued operation, net
of taxes (sold to CEO) . . . . . . . . . . . . . .

149,959
(59,667)

110,125
(42,798)

39,834
8.0% 7.6%
3.2% 3.0% (16,869)

36.2%
39.4%

90,292

67,327

4.8% 4.6%

22,965

34.1%

—

—

(458)

0.0% 0.0%

458

-100.0%

338

0.0% 0.0%

(338)

-100.0%

NET INCOME . . . . . . . . . . . . . . . . . . . . . . . . . .

$

90,292

$

67,207

4.8% 4.6% $ 23,085

34.3%

Revenues

Revenues increased 29.2% to $1.87 billion for the year ended December 31, 2008, compared to $1.45
billion for the same period in 2007. The increase was primarily due to our contracts supporting forward
deployments in Iraq, Afghanistan and other areas around the world and our acquisitions of SRS in May 2007,
MBI in December 2007, ETG in August 2008 and EWA in November 2008. Revenue growth of $206.6 million
came from global logistics and supply chain management contracts; specifically contracts for the installation and
repair of systems designed to counter or clear mines and IEDs. For the year ending December 31, 2008, our
recent acquisitions, SRS, MBI, ETG and EWA, contributed revenue increases of $125.5 million.

We are expecting the growth in revenue to continue in 2009 as a result of our recent acquisitions and our
continued support of the Global War on Terror, including increased demand in support of operations within the

33

Southwest Asian region, including Iraq and Afghanistan. We are well positioned to compete for and receive
contracts related to the Comprehensive National Cyber Initiative. Possible future changes in U.S. policy and
tactics related to the wars may impact our future performance trend.

Cost of services

Cost of services increased 28.9% to $1.57 billion for the year ended December 31, 2008, compared to $1.21
billion for the same period in 2007. The increase in cost of services is primarily due to larger purchases of
equipment, materials and other direct costs directly related to our contracts and our recent acquisitions of SRS,
MBI, ETG and EWA. As a percentage of revenues, cost of services decreased 0.1% to 83.7% for the year ended
December 31, 2008 as compared to 83.8% for the same period in 2007. Direct labor costs, which include
applicable fringe benefits and overhead, increased by $126.9 million primarily due to the recent acquisitions and
growth in staff supporting global logistics and supply chain management. As a percentage of revenues, direct
labor costs decreased 2.5% to 38.5% for the year ended December 31, 2008 compared to 41.0% for the same
period in 2007. The decrease in direct labor as a percentage of revenues is primarily due to an increase in other
direct costs in relation to revenues. Other direct costs, which include subcontractors and third party equipment
and materials used in the performance of our contracts, increased by 36.1% over the same period in 2007. The
increase in other direct costs was primarily due to an increase in purchases of equipment and materials on our
contracts for installation and repair of systems designed to counter or clear mines and IEDs, as noted above, as
well as our recent acquisitions. As a percentage of revenues, other direct costs increased from 42.9% for the year
ended December 31, 2007 to 45.2% for the same period in 2008.

General and administrative expenses

General and administrative expenses increased 26.7% to $152.3 million for the year ended December 31,
2008, compared to $120.2 million for the same period in 2007. The increase in expense resulted primarily from
the recent acquisitions of SRS, MBI, ETG and EWA and increased spending to support the growth of our
business. As a percentage of revenues, general and administrative expenses decreased to 8.1% from 8.3% for the
year ended December 31, 2008 and 2007, respectively. The reduction as a percentage of revenues was largely
due to the leveraging of our administrative expenses over a larger revenue base.

Interest expense

Interest expense decreased $1.1 million to $4.0 million for the year ended December 31, 2008, compared to
$5.1 million for the same period in 2007. The decrease in interest expense is due to a decline in interest rates,
partially offset by an increase in our average outstanding debt balance. Our average outstanding debt balance for
the year ended December 31, 2008 was $122.3 million as compared to $84.7 million for the year ended
December 31, 2007. The interest rate we incur on our credit facility is impacted by changes in the Federal Funds
Rate or London Interbank Offer Rate (LIBOR). Changes in these lending rates could lead to fluctuations in our
interest expense in future periods. For additional information, see “Credit Agreement,” below.

Interest income

Interest income decreased $0.5 million to $0.8 million for the year ended December 31, 2008, compared to
$1.3 million for the same period in 2007. During the first four months of 2007, we did not have any outstanding
borrowings. As a result we had cash on hand, which generated interest income during that period.

Provision for Income Taxes

The provision for income taxes increased $16.9 million to $59.7 million for the year ended December 31,
2008, compared to $42.8 million for the same period in 2007. Our effective income tax rates were 39.8% and
38.9% for the years ended 2008 and 2007 respectively. The higher tax rate in 2008 as compared to 2007 related
primarily to the impact of non-deductible losses related to our Employee Supplemental Savings Plan. These were
partially offset by research and development credits.

34

Loss from discontinued operations

On February 23, 2007, we sold our MSM subsidiary. Prior to that date, MSM was classified as held for sale
in our consolidated balance sheets and discontinued operations, net of applicable income taxes in our
consolidated statements of income. For additional information see “Discontinued Operations,” below.

Gain on sale of discontinued operation

On February 23, 2007, we sold MSM to MSM Security Services Holdings, LLC (an entity that is solely
owned by George J. Pedersen, our Chairman and CEO) for $3.0 million in cash. We recorded a $0.3 million net
gain on the transaction. For additional information see “Discontinued Operations,” below.

Net income

Net income increased 34.3% to $90.3 million for the year ended December 31, 2008, compared to $67.2
million for the same period in 2007. The increase is a result of higher revenue and improved margins primarily
driven by the leveraging of our administrative expenses over a larger revenue base. Our effective tax rates for the
years ended December 31, 2008 and 2007 were 39.8% and 38.9%, respectively.

Year Ended December 31, 2007 Compared to Year Ended December 31, 2006

Consolidated Statements of Income

The following table sets forth certain items from our consolidated statements of income and the relative
percentages that certain items of expense and earnings bear to revenue as well as the year-over-year change from
December 31, 2006 to December 31, 2007.

Years Ended December 31,

2007

2006

2007

2006

Year-to-Year
Change

2006 to 2007

Dollars

Percentages

Dollars

Percent

(in thousands)

REVENUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services . . . . . . . . . . . . . . . . . . . . .
General and administrative expenses . . . . .

$1,448,098
1,214,150
120,244

$1,137,178
944,150
102,378

100.0% 100.0% $310,920
83.8% 83.0% 270,000
17,866
8.3% 9.0%

27.3%
28.6%
17.5%

OPERATING INCOME . . . . . . . . . . . . . . . . . .
Gain on disposal of operations . . . . . . . . .
Interest expense . . . . . . . . . . . . . . . . . . . . .
Interest income . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
Other income (expense), net

INCOME FROM CONTINUING

OPERATIONS BEFORE INCOME
TAXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for income taxes . . . . . . . . . . . .

INCOME FROM CONTINUING

OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . .
Loss from discontinued operations, net of

taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of discontinued operation, net
of taxes (sold to CEO) . . . . . . . . . . . . . .

113,704
—
(5,103)
1,261
263

90,650
955
(2,375)
809
382

7.9% 8.0%
0.0% 0.1%
0.4% 0.2%
0.1% 0.1%
0.0% 0.0%

23,054
(955)
(2,728)
452
(119)

25.4%
-100.0%
114.9%
55.9%
-31.2%

110,125
(42,798)

90,421
(34,825)

7.6% 8.0%
3.0% 3.1%

19,704
(7,973)

21.8%
22.9%

67,327

55,596

4.6% 4.9%

11,731

21.1%

(458)

(4,895)

0.0% 0.4%

4,437

-90.6%

338

—

0.0% 0.0%

338

100.0%

NET INCOME . . . . . . . . . . . . . . . . . . . . . . . . . .

$

67,207

$

50,701

4.6% 4.5% $ 16,506

32.6%

35

Revenues

Revenues increased 27.3% to $1.45 billion for the year ended December 31, 2007, compared to $1.14
billion for the same period in 2006. The acquisition of SRS in May 2007 added $139.1 million to our revenues
for the year ended December 31, 2007. Additionally, the increase is attributable to countermine/counter IED
support in Iraq and Afghanistan. One contract for the installation and repair of systems designed for countermine
programs and counter IED’s accounted for $209.2 million and $102.4 million of revenues for the years ended
December 31, 2007 and 2006, respectively. There were increases on other programs related to the global war on
terrorism. We also experienced growth on U.S. based support contracts. GRS, acquired during the fourth quarter
of 2006, contributed $13.9 million to our revenues for the year ended December 31, 2007. The MBI acquisition
on December 18, 2007 had an insignificant impact to our 2007 revenue.

Cost of services

Cost of services increased 28.6% to $1.21 billion for the year ended December 31, 2007, compared to
$944.2 million for the same period in 2006. The increase is related to the increase in revenues for the period. As a
percentage of revenues, cost of services increased 0.8% to 83.8% for the year ended December 31, 2007
compared to 83.0% for the same period in 2006. This increase was due to larger purchases of equipment and
materials directly for contracts and increased use of subcontractors in support of our contracts. The increase in
other direct costs resulted in lower income from continuing operations primarily due to generally lower profit
margins on purchases of equipment and materials. Direct labor costs, which include applicable fringe benefits
and overhead, increased by 17.1% due to the acquisition of SRS and the growth of our work force. As a
percentage of revenues, direct labor costs decreased 3.6% to 41.0% for the year ended December 31, 2007
compared to 44.6% for the same period in 2006 due to the significant growth in other direct cost. Other direct
costs increased by 41.9% over the same period in 2006, from $437.4 million to $620.7 million. The increase in
other direct costs is due to the increase in purchases of equipment and materials and increased use of
subcontractors as noted above. As a percentage of revenues, other direct costs increased from 38.5% for the year
ended December 31, 2006 to 42.9% for the same period in 2007.

General and administrative

General and administrative expenses increased 17.5% to $120.2 million for the year ended December 31,
2007, compared to $102.4 million for the same period in 2006. The increase in expense during the year resulted
primarily from the acquisition and integration of SRS, increased bid and proposal spending, a net realizable value
adjustment related to an intangible asset of a previous acquisition and share-based compensation. In addition,
amortization of intangibles increased due to our acquisition of SRS in May 2007 as well as our acquisition of
GRS in October 2006. As a percentage of revenues, general and administrative expenses decreased to 8.3% from
9.0% for the years ended December 31, 2007 and 2006, respectively. The reduction as a percentage of revenues
was due largely to a management cost cutting initiative in 2007 and leveraging our administrative expenses over
a larger revenue base. For the years ended December 31, 2007 and 2006, we recognized $6.7 million and $5.8
million in share-based compensation expense under SFAS 123(R), respectively.

Gain on disposal of operations

There were no gains on disposal of operations in 2007. In October 31, 2006, we sold assets related to our
NetWitness® business to the NetWitness Acquisition Corporation, an unrelated third party. We recorded a $1.0
million pre-tax gain in 2006 on the transaction. For additional information see “Gain on Disposal of Operations
and Equity Method Investment,” below.

Interest expense

Interest expense increased to $5.1 million for the year ended December 31, 2007, compared with $2.4 million for
the same period in 2006. For the year ended December 31, 2007, we had an average debt balance of $84.7 million,
compared to $28.4 million for the same period in 2006. The increase in our average debt balance in 2007 was primarily

36

driven by increased borrowings to fund the acquisitions of SRS and MBI. In 2006, we had paid off all borrowings
under a previous credit facility, which had been used to finance the acquisition of Gray Hawk Systems in 2005.

Interest income

Interest income increased to $1.3 million for the year ended December 31, 2007, compared to $0.8 million
for the same period in 2006. The fluctuation is due to increased cash on hand for almost half of the year ended
December 31, 2007, collection of interest on an old receivable and an income tax refund. As we used a
combination of cash on hand and our new credit facility to finance the acquisition of SRS in May 2007 and MBI
in December 2007, our cash balance was reduced significantly during the second half of 2007.

Loss from discontinued operations

On February 23, 2007, we sold our MSM subsidiary. Prior to that date, MSM was classified as held for sale
in our consolidated balance sheets and discontinued operations, net of applicable income taxes in our
consolidated statements of income. Loss from discontinued operations decreased to $0.5 million for the year
ended December 31, 2007, compared with $4.9 million for the same period in 2006. The sale of MSM resulted in
the reflection of only two months of MSM operations in 2007 versus a full year of MSM operations for the same
period in 2006. For additional information see “Discontinued Operations,” below.

Gain on sale of discontinued operation

On February 23, 2007, we sold MSM to MSM Security Services Holdings, LLC (an entity that is solely
owned by George J. Pedersen, our Chairman and CEO) for $3.0 million in cash. We recorded a $0.3 million net
gain on the transaction. For additional information see “Discontinued Operations,” below.

Net income

Net income increased 32.6% to $67.2 million for the year ended December 31, 2007, compared to $50.7
million for the same period in 2006. The increase is a result of higher revenue, increased income from continuing
operations and a reduced net loss on discontinued operations of $0.5 million in 2007 versus a loss of $4.9 million
for the same period in 2006. Our effective tax rates for the years ended December, 31 2007 and 2006 were 38.9%
and 38.5%, respectively.

Backlog

For the years ended 2008, 2007 and 2006 our backlog was $4.0 billion, $3.2 billion and $2.9 billion,
respectively, of which $1.2 billion, $758 million and $622 million, respectively, was funded backlog. Backlog
represents estimates that we calculate on a consistent basis. At December 31, 2008, ETG and EWA contributed
approximately $28 million in backlog combined. We estimate that approximately 35% to 45% of our total
backlog will be recognized as revenues prior to December 31, 2009.

Effects of Inflation

Inflation and uncertainties in the macroeconomic environment, such as conditions in the financial markets
could impact our labor rates beyond the predetermined escalation factors. However, we generally have been able
to price our contracts in a manner to accommodate the rates of inflation experienced in recent years. Under our
time and materials contracts, labor rates are usually adjusted annually by predetermined escalation factors. Our
cost reimbursable contracts automatically adjust for changes in cost. Under our fixed-price contracts, we include
a predetermined escalation factor, but generally, we have not been adversely affected by near-term inflation.
Purchases of equipments and materials directly for contracts are usually cost reimbursable.

In addition, inflation or inflationary concerns could prompt the Federal Reserve to begin increasing the
Federal Funds Rate. As one of the borrowing rates in our credit facility is tied to the Federal Funds Rate,

37

increases in this rate, given similar levels of debt, could lead to higher interest expense. However, the Federal
Reserve recently cut this rate because the pace of U.S. economic activity has slowed and inflation is expected to
moderate as a result of lower energy and commodities prices.

Liquidity and Capital Resources

Our primary liquidity needs are the financing of acquisitions, working capital and capital expenditures. Our
primary source of liquidity is cash provided by operations and our revolving credit facility. On April 30, 2007,
we executed a Credit Agreement with a syndicate of lenders led by Bank of America N.A., as administrative
agent. The Credit Agreement initially provides for up to $300.0 million in available borrowings. See “Credit
Agreement” below for additional information. At December 31, 2008, we had $44.1 million outstanding under
our credit facility and we were contingently liable under letters of credit totaling $0.7 million, which reduces our
ability to borrow under our credit facility. The maximum available borrowing under our credit facility at
December 31, 2008 was $255.2 million. Generally, cash provided by operating activities is adequate to fund our
operations. Due to fluctuations in our cash flows and the growth in our operations, it is necessary from
time-to-time to increase borrowings under our credit facility to meet cash demands. In the future, we may borrow
greater amounts in order to finance acquisitions or new contract start ups. The interest rates we pay under our
credit facility are based on market rates that are at historic lows. We anticipate that this rate will increase in the
future, however we cannot predict the timing of such increase.

The U.S. and worldwide capital and credit markets have recently experienced significant price volatility,
dislocations and liquidity disruptions. Continued uncertainty in the capital and credit markets may negatively
impact our business, including our ability to access financing at reasonable terms, which may negatively affect
our ability to make future acquisitions. A prolonged downturn in the financial markets may cause us to seek
alternative sources of potentially less attractive financing.

Cash flows from operating activities

(in thousands)

Year Ended December 31,

2008

2007

2006

Net cash flow from operating activities of continuing operations:
. . . . . . . . . . . .
Net cash flow from discontinued operations: . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$127,266

$64,886
— (1,562)

$90,873
(6,517)

Net cash flow from operating activities:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$127,266

$63,324

$84,356

Our operating cash flow is primarily affected by the overall profitability of our contracts, our ability to
invoice and collect from our clients in a timely manner and our ability to manage our vendor payments. We bill
most of our clients and prime contractors monthly after services are rendered. Increased cash flow from
operations in 2008 as compared to 2007 was also favorably impacted by the timing of vendor and other direct
cost payments, which were paid shortly after our fiscal year end. The reduced cash inflow from operations in
2007 as compared to 2006 was the result of a significant collection of receivables in 2006 under a management
collection initiative. The reduced cash outflow from discontinued operations in 2007 compared to 2006 is due to
the sale of MSM on February 23, 2007.

Cash flows from investing activities

(in thousands)

Net investing cash flow from continuing operations:
. . . . . . . . . . . . . . . . . . . .
Net investing cash flow from discontinued operations: . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2008

2007

2006

$(39,162) $(278,286) $(25,244)
(465)

3,000

—

Net cash flow from investing activities: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$(39,162) $(275,286) $(25,709)

38

Our cash flow used in investing activities consists primarily of capital expenditures and business
acquisitions offset by disposals of operations. Cash outflows in 2008 were primarily from our acquisition of ETG
on August 29, 2008 for $25.1 million, net of cash acquired, our acquisition of EWA on November 28, 2008 for
$12.3 million, net of cash acquired and purchases of equipment and software for internal use. Cash outflows in
2007 were primarily from our acquisition of SRS on May 7, 2007 for $199.1 million, net of cash acquired, our
acquisition of MBI on December 18, 2007 for $78.9 million, net of cash acquired and purchases of equipment
and software for internal use. These were partially offset by the sale of office buildings and land for $1.8 million
that we acquired in 2005. We had a cash inflow from discontinued operations of $3.0 million due to the sale of
our MSM subsidiary. For more information see “Discontinued Operations,” below. Cash flow from investing
activities could fluctuate significantly in the future with the execution of our acquisition strategy.

Cash flows from financing activities

(in thousands)

Year Ended December 31,

2008

2007

2006

Net cash flow from financing activities: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$(91,777) $178,500

$(22,815)

Cash used in financing activities during 2008 resulted primarily from paying down our credit facility with
cash from operations, this was slightly offset by borrowings under our credit facility to finance our acquisitions
of EWA and ETG; and proceeds from the exercise of stock options. We intend to pay down the remaining
balance on our Credit Facility during fiscal year 2009. In addition, we acquired treasury stock with a cost of $9.1
million related to the distribution of a supplemental executive retirement plan (GJP SERP) for our Chairman and
CEO (for additional information see Note 10 in our consolidated financial statements). The cash outflow for the
acquisition of treasury stock was offset by the excess tax benefits generated by stock option exercises and the
GJP SERP transaction.

Cash provided by financing activities in 2007 resulted primarily from the use of our credit facility to support
the acquisitions of SRS and MBI and proceeds from the exercise of stock options. In the second quarter of 2007,
we refinanced our credit facility to support future acquisitions and liquidity requirements.

Credit Agreement

On April 30, 2007, we terminated our $125.0 million credit facility with a syndicate of lenders led by
Citizens Bank of Pennsylvania, as administrative agent, and executed a credit facility with a syndicate of lenders
led by Bank of America, N.A, as administrative agent. The Credit Agreement provides for a $300.0 million
revolving credit facility, with a $25.0 million letter of credit sublimit and a $30.0 million swing line loan
sublimit. The Credit Agreement also contains an accordion feature that permits the Company to arrange with the
lenders for them to provide up to $100.0 million in additional commitments. The maturity date for the Credit
Agreement is April 30, 2012.

Borrowings under the Credit Agreement are collateralized by our assets and bear interest at one of the
following rates as selected by the Company: a LIBOR-based rate plus market-rate spreads that are determined
based on the Company’s leverage ratio calculation (0.875% to 1.5%), or the lender’s base rate, which is the lower
of the Federal Funds Rate plus 0.5% or Bank of America’s prime lending rate.

The terms of the Credit Agreement permit prepayment and termination of the loan commitments at any
time, subject to certain conditions. The Credit Agreement requires the Company to comply with specified
financial covenants, including the maintenance of a certain leverage ratio and fixed charge coverage ratio. The
Credit Agreement also contains various covenants, including affirmative covenants with respect to certain
reporting requirements and maintaining certain business activities, and negative covenants that, among other
things, may limit our ability to incur liens, incur additional indebtedness, make investments, make acquisitions,

39

pay cash dividends and undertake certain additional actions. As of December 31, 2008, we were in compliance
with our financial covenants under the Credit Agreement.

We believe the capital resources available to us under our credit agreement and cash from our operations are
adequate to fund our ongoing operations and to support the internal growth we expect to achieve for at least the
next twelve months. We anticipate financing our external growth from acquisitions and our longer-term internal
growth through one or more of the following sources: cash from operations; additional borrowing; issuance of
equity; use of the existing revolving facility; or a refinancing of our credit facility. At December 31, 2008, we
had $44.1 million outstanding under our credit facility.

Off-Balance Sheet Arrangements

None.

Contractual Obligations

Our contractual obligations as of December 31, 2008 are as follows (in thousands):

Contractual Obligations

Debt obligations (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating lease obligations (2) . . . . . . . . . . . . . . . . . . . . . .
Other long-term liabilities (3) . . . . . . . . . . . . . . . . . . . . . . .
Accrued defined benefit obligations (4) . . . . . . . . . . . . . . .

Payments Due By Period

Total

$ 44,100
118,738
7,769
1,730

Less than
1 Year

$44,100
22,989
—
171

1-3
Years

3-5
Years

More than
5 Years

$ — $ — $ —
25,682
28,348
41,719
951
2,769
4,049
900
328
331

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$172,337

$67,260

$46,099

$31,445

$27,533

(1) See Note 8 to our consolidated financial statements in Item 8 for additional information regarding debt and
related matters. The amounts in the table above represents the periods in which we estimate the debt
obligation to be repaid. However, the borrowings are due on the maturity date of the credit agreement,
April 30, 2012.

(2) Operating lease obligations have been reduced for the related amount disclosed in other long-term liabilities
as deferred rent (see below). See Note 9 to our consolidated financial statements in Item 8 for additional
information regarding operating leases.

(3) Other long-term liabilities at December 31, 2008 included approximately $6.0 million of deferred rent
liabilities resulting from recording rent expenses on a straight-line basis over the life of the respective lease
in accordance with SFAS 13, Accounting for Leases, and Financial Accounting Standards Board (FASB)
Technical Bulletin No. 85-3, Accounting for Operating Leases with Scheduled Rent Increases. Also
included in other long-term liabilities is a gross unrecognized tax benefit liability of $1.5 million resulting
from the adoption of FASB Interpretation No. (FIN) 48, Accounting for Uncertainty in Income Taxes An
Interpretation of FASB Statement No. 109, or FIN 48, in January 2007.

(4) Accrued defined benefit obligation includes approximately $1.7 million of unfunded pension obligations
related to nonqualified supplemental defined benefit pension plans for certain retired employees of an
acquired company. The amounts above are subject to change based on actuarial as well as the vital status of
participants. This obligation is included in the accrued retirement amount on our consolidated balance
sheets. In addition, the accrued retirement amount on our consolidated balance sheets includes amounts for
one non-qualified deferred compensation plan for certain highly compensated employees. The funds
deferred by the employees are invested and these investment assets are maintained in rabbi trusts. The rabbi
trusts’ assets are reflected in the Employee Supplemental Savings Plan Assets on our consolidated balance
sheet. Because these liabilities will be satisfied by assets held in rabbi trusts, the amounts have been
excluded from the above table.

40

Gain on Disposal of Operations and Equity Method Investment

On October 31, 2006, we sold assets related to our NetWitness® operation to NetWitness Acquisition
Corporation, an unrelated third party, for $2.0 million in cash and an equity stake in the new company of less
than 5%. The sale of NetWitness® included $1.0 million in goodwill and a fully amortized intangible asset with a
cost basis of $0.4 million. We recorded a pre-tax gain of approximately $1.0 million on the transaction. We
continue to provide NetWitness® product and services to various federal government agencies through
subcontracts with NetWitness Acquisition Corporation.

Discontinued Operations

In February 2005, we reached a final corporate determination to exit the personnel security investigation
services business and discontinue operations at our MSM subsidiary. We reached the determination to sell our
MSM subsidiary after we concluded that the MSM business no longer furthered our long-term strategic objectives.

On February 23, 2007, we sold MSM to MSM Security Services Holdings, LLC for $3.0 million in cash.
The sale resulted in a pre-tax gain of $0.6 million in the first quarter of 2007. MSM Security Services Holdings,
LLC is solely owned by George J. Pedersen, our Chairman and CEO. Mr. Pedersen presented an offer to our
Board of Directors to purchase our MSM subsidiary. Mr. Pedersen’s offer exceeded the value of any other
definitive offers extended to the Company.

After Mr. Pedersen presented a formal offer to the Company to purchase our MSM subsidiary, the Board of
Directors formed a special committee comprised solely of independent directors to review, evaluate and
determine the advisability of the transaction. The special committee retained the services of independent legal
counsel and independent financial advisor to advise the special committee and assist it in connection with its
duties. The special committee received a fairness opinion from the independent financial advisor. The special
committee of the Board of Directors considered the opinions received from its advisors and unanimously
recommended approval of the transaction to the independent members of the Board of Directors and the
transaction was approved by our independent directors.

Our consolidated financial statements and related note disclosures reflect our ManTech MSM Security
Services, Inc. subsidiary as long-lived assets to be disposed of by sale for all periods presented in accordance
with SFAS 144, Accounting for the Impairment or Disposal of Long-Lived Assets. As such, MSM was classified
as held for sale in our consolidated balance sheets and discontinued operations, net of applicable income taxes in
our consolidated statements of income.

Critical Accounting Estimates and Policies

Critical accounting policies are defined as those that are reflective of significant

judgments and
uncertainties, and potentially result in materially different results under different assumptions and conditions.
Application of these policies is particularly important to the portrayal of our financial condition and results of
operations. The discussion and analysis of our financial condition and results of operations are based on our
consolidated financial statements, which have been prepared in accordance with accounting principles generally
accepted in the United States of America. The preparation of these consolidated financial statements requires
management to make estimates and judgments that affect the reported amount of assets, liabilities, revenues and
expenses. Actual results may differ from these estimates under different assumptions or conditions. Our
significant accounting policies, including the critical policies listed below, are more fully described in the notes
to our consolidated financial statements included in this report.

Revenue Recognition and Cost Estimation

We recognize revenue when persuasive evidence of an arrangement exists, services have been rendered, the
contract price is fixed or determinable and collectability is reasonably assured. We have a standard internal
process that we use to determine whether all required criteria for revenue recognition have been met.

41

Our revenues consist primarily of services provided by our employees and the pass through of costs for
materials and subcontract efforts under contracts with our customers. Cost of services consists primarily of
compensation expenses for program personnel, the fringe benefits associated with this compensation and other
direct expenses incurred to complete programs, including cost of materials and subcontract efforts.

We derive the majority of our revenue from cost-plus-fixed-fee, cost-plus-award-fee, firm-fixed-price or
time-and-materials contracts. Revenues for cost reimbursable contracts are recorded as reimbursable costs are
incurred, including an estimated share of the applicable contractual fees earned. For performance-based fees
under cost reimbursable contracts, that are subject to the provisions of American Institute of Certified Public
Accountants (AICPA) Statement of Position (SOP) No. 81-1, Accounting for Performance of Construction-Type
and Certain Production-Type Contract, or SOP 81-1, we recognize the relevant portion of the expected fee to be
awarded by the client at the time such fee can be reasonably estimated, based on factors such as our prior award
experience and communications with the client regarding performance. For cost reimbursable contracts with
performance-based fee incentives that are subject to the provisions of SEC Topic 13, we recognize the relevant
portion of the fee upon customer approval. For time-and-material contracts, revenue is recognized to the extent of
billable rates times hours delivered plus material and other reimbursable costs incurred. For long-term fixed-price
production contracts, revenue is recognized at a rate per unit as the units are delivered or by other methods to
measure services provided. Revenue from other long-term fixed-price contracts is recognized ratably over the
contract period or by other appropriate methods to measure services provided. Contract costs are expensed as
incurred except for certain limited long-term contracts noted below. For long-term contracts, specifically
described in the scope section of SOP 81-1 or other appropriate accounting literature, we apply the percentage of
completion method. Under the percentage of completion method, income is recognized at a consistent profit
margin over the period of performance based on estimated profit margins at completion of the contract. This
method of accounting requires estimating the total revenues and total contract cost at completion of the contract.
During the performance of long-term contracts, these estimates are periodically reviewed and revisions are made
as required. The impact on revenue and contract profit as a result of these revisions is included in the periods in
which the revisions are made. This method can result in the deferral of costs or the deferral of profit on these
contracts. Because we assume the risk of performing a fixed-price contract at a set price, the failure to accurately
estimate ultimate costs or to control costs during performance of the work could result, and in some instances has
resulted, in reduced profits or losses for such contracts. Estimated losses on contracts at completion are
recognized when identified. In certain circumstances, revenues are recognized when contract amendments have
not been finalized.

Accounting for Business Combinations and Goodwill

The purchase price of an acquired business is allocated to the tangible assets, financial assets and separately
recognized intangible assets acquired less liabilities assumed based upon their respective fair values, with the
excess recorded as goodwill. Such fair value assessments require judgments and estimates that can be affected by
contract performance and other factors over time, which may cause final amounts to differ materially from
original estimates.

We review goodwill at least annually for impairment. We have elected to perform this review annually
during the second quarter of each calendar year and no adjustments were necessary for our continuing operations.

Due to the many variables inherent in the estimation of a reporting unit’s fair value and the relative size of
the Company’s recorded goodwill, differences in assumptions may have a material effect on the results of the
Company’s impairment analysis.

Recent Accounting Pronouncements

In December 2007, the FASB issued SFAS 141(R), Business Combinations. The new standard moves closer
to a fair value model by requiring the acquirer to measure all assets acquired and all liabilities assumed at their
respective fair values at the date of acquisition, including the measurement of noncontrolling interests at fair

42

value. SFAS 141(R) also establishes principles and requirements as to how the acquirer recognizes and measures
goodwill acquired in a business combination or a gain from a bargain purchase and determines what information
to disclose to enable users of the financial statements to evaluate the nature and financial effects of the business
combination. In addition, SFAS 141(R) significantly changes the accounting for business combinations in a
number of areas, including the treatment of contingent consideration, preacquisition contingencies, in-process
research and development, restructuring costs and requires the expensing of acquisition-related costs as incurred.
The effective date of SFAS 141(R) is for fiscal years beginning after December 15, 2008. For transactions
consummated after the effective date of SFAS 141(R), prospective application of the new standard is applied. For
business combinations consummated prior to the effective date of SFAS 141(R), the guidance in SFAS 141,
Business Combinations, is applied. The adoption of SFAS 141(R) is not expected to have a material impact on
our consolidated financial statements.

In December 2007, the FASB issued SFAS 160, Noncontrolling Interests in Consolidated Financial
Statements, which amends Accounting Research Bulletin No. 51, Consolidated Financial Statements, and
provides accounting and reporting standards for the noncontrolling interest in a subsidiary, commonly referred to
as minority interest, and for the deconsolidation of a subsidiary. The new standard requires noncontrolling
interests to be presented separately within equity in the consolidated statement of financial position. Consolidated
net income attributable to the parent and noncontrolling interests will be clearly identified and presented on the
face of the statement of operations. When a change in control of a subsidiary occurs it will either be accounted
for as an equity transaction when control is maintained or a gain or loss will be recognized when control is not
maintained. The remaining noncontrolling interest will be remeasured to fair value when control is lost. SFAS
160 requires that the noncontrolling interest continue to be attributed its share of losses and thus is no longer
limited to the original carrying amount of the noncontrolling interest. This may result in a negative carrying
balance.

The effective date of SFAS 160 is for fiscal years beginning after December 15, 2008. SFAS 160 will be
applied prospectively as of the beginning of the year in which SFAS 160 is adopted except for presentation and
disclosure requirements, which will be applied retrospectively for all periods presented. We do not expect the
adoption of SFAS 160 to have a material impact on our consolidated financial statements.

On April 25, 2008, the FASB issued FSP No. FAS 142-3, Determination of the Useful Life of Intangible
Assets, or FSP 142-3. FSP 142-3 addresses determining the useful life of an intangible asset when the intangible
asset has renewal or extension options. FSP 142-3 amends SFAS 142, Goodwill and Other Intangible Assets,
which explains the useful life assessment criteria in regards to developing assumptions about renewal or
extension options to allow entities to consider its own historical experience in renewing or extending similar
arrangements adjusted for entity-specific factors. SFAS 142 requires entities to determine whether the renewal or
extension can be accomplished without substantial cost or material modifications of the existing terms and
conditions in connection with the asset. FSP 142-3 removes the criteria to consider whether an intangible asset
can be renewed without substantial cost or material modification. The guidance in FSP 142-3 applies
prospectively to intangible assets acquired after December 15, 2008, the effective date of FSP 142-3. The new
disclosure requirements of FSP 142-3 apply to all
to
December 15, 2008. We do not believe the adoption of FSP 142-3 will have a material impact on our
consolidated financial statements.

intangible assets recognized as of and subsequent

In May 2008, the FASB issued SFAS 162, The Hierarchy of Generally Accepted Accounting Principles,
which establishes the sources of accounting principles and the framework for selecting the principles to be used
in the preparation of financial statements that are presented in conformity with generally accepted accounting
principles (GAAP). The current GAAP hierarchy is set forth in AICPA Statement on Auditing Standards No. 69,
The Meaning of Present Fairly in Conformity With Generally Accepted Accounting Principles. In issuing SFAS
162, the GAAP hierarchy now resides in accounting literature established by the FASB versus the AICPA. The
adoption of SFAS 162 will not impact our current practice of preparing financial statements in conformity with
GAAP.

43

In December 2008, the FASB issued FSP FAS 140-4 and FIN 46(R)-8, Disclosures by Public Entities
(Enterprises) about Transfers of Financial Assets and Interests in Variable Interest Entities, which amends SFAS
140, Accounting for Transfers and Servicing of Financial Assets and Extinguishments of Liabilities, to require
public entities to provide additional disclosures about transfers of financial assets. It also amends FIN 46(R),
Consolidation of Variable Interest Entities, to require public enterprises to provide additional disclosures about
their involvement with variable interest entities. FSP FAS 140-1 and FIN 46(R)-8 requires certain disclosures to
be provided by a public enterprise that is (a) a sponsor of a qualifying Special Purpose Entity (SPE) that holds a
variable interest in the qualifying SPE but was not the transferor (nontransferor) of financial assets to the
qualifying SPE and (b) a servicer of a qualifying SPE that holds a significant variable interest in the qualifying
SPE but was not the transferor (nontransferor) of financial assets to the qualifying SPE. FSP FAS 140-4 and FIN
46(R)-8 is effective for the first reporting period ending after December 15, 2008 and will apply to each annual
and interim reporting period thereafter. The adoption of FSP FAS 140-4 and FIN 46(R)-8 is not expected to have
a material impact on our financial statements.

In June 2008 the FASB issued FSP EITF 03-6-1, Determining Whether Instruments Granted in Share-Based
Payment Transactions Are Participating Securities. FSP EITF 03-6-1 addresses whether instruments granted in
share-based payment transactions are participating securities prior to vesting and, therefore, need to be included
in the earnings allocation in computing earnings per share under the two-class method of SFAS 128, Earnings
per Share. FSP EITF 03-6-1 is effective for financial statements issued for fiscal years beginning after
December 15, 2008 and interim periods within those years. All prior-period earnings per share data presented
will be adjusted retrospectively (including interim financial statements, summaries of earnings and selected
financial data) to conform to the provisions of FSP EITF 03-6-1. Early application is not permitted. We are
currently assessing the impact that this potential change would have on our financial statements.

In November 2008, the SEC issued for comment a proposed roadmap regarding the potential use by U.S.
issuers of financial statements prepared in accordance with International Financial Reporting Standards (IFRS).
IFRS is a comprehensive series of accounting standards published by the International Accounting Standards
Board (IASB). Under the proposed roadmap, we could be required in fiscal 2014 to prepare financial statements
in accordance with IFRS. The SEC will make a determination in 2011 regarding the mandatory adoption of
IFRS. We are currently assessing the impact that this potential change would have on our consolidated financial
statements and we will continue to monitor the development of the potential implementation of IFRS.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

Our exposure to market risk relates to changes in interest rates for borrowings under our revolving credit
facility. At December 31, 2008, we had $44.1 million outstanding on our revolving credit facility. Borrowings
under our revolving credit facility bear interest at variable rates. A hypothetical 10% increase in interest rates
would have increased our annual interest expense for the year ended December 31, 2008 by less than $0.3
million.

We do not use derivative financial instruments for speculative or trading purposes. When we have excess
cash, we invest in short-term,
investment grade, interest-bearing securities. Our investments are made in
accordance with an investment policy. Under this policy, no investment securities can have maturities exceeding
six months and the weighted average maturity of the portfolio cannot exceed 60 days.

44

Item 8. Financial Statements and Supplementary Data

Index to Consolidated Financial Statements

Report of Independent Registered Public Accounting Firm on the Consolidated Financial Statements and
Financial Statement Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Balance Sheets as of December 31, 2008 and 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Income for the years ended December 31, 2008, 2007 and 2006 . . . . . . . . . .
Consolidated Statements of Comprehensive Income for the years ended December 31, 2008, 2007 and

2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Changes in Stockholders’ Equity for the years ended December 31, 2008,

Page(s)

46
47
48

49

2007 and 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Cash Flows for the years ended December 31, 2008, 2007 and 2006 . . . . . . .
Notes to Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

50
51-52
53-81

45

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
ON THE CONSOLIDATED FINANCIAL STATEMENTS AND FINANCIAL
STATEMENT SCHEDULE

To the Board of Directors and Stockholders of ManTech International Corporation
Fairfax, Virginia

We have audited the accompanying consolidated balance sheets of ManTech International Corporation and
subsidiaries (the “Company”) as of December 31, 2008 and 2007, and the related consolidated statements of
income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the three years in the
period ended December 31, 2008. Our audits also included the financial statement schedule listed in the Index at
Item 15. These financial statements and financial statement schedule are the responsibility of the Company’s
management. Our responsibility is to express an opinion on the financial statements and financial statement
schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board
(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether the financial statements are free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the
accounting principles used and significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial
position of ManTech International Corporation and subsidiaries as of December 31, 2008 and 2007, and the
results of their operations and their cash flows for each of the three years in the period ended December 31, 2008,
in conformity with accounting principles generally accepted in the United States of America. Also, in our
opinion, such financial statement schedule, when considered in relation to the basic consolidated financial
statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

As discussed in Note 12 to the consolidated financial statements, the Company adopted, effective January 1,
2007, a new accounting standard for accounting for uncertain income tax positions.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board
(United States), the Company’s internal control over financial reporting as of December 31, 2008, based on the
criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring
Organizations of the Treadway Commission and our report dated February 27, 2009 expressed an unqualified
opinion on the Company’s internal control over financial reporting.

/s/ DELOITTE & TOUCHE LLP

McLean, Virginia
February 27, 2009

46

MANTECH INTERNATIONAL CORPORATION

CONSOLIDATED BALANCE SHEETS
(Dollars in Thousands, Except Share Amounts)

CURRENT ASSETS:

ASSETS

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receivables—net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other

$

Total Current Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property and equipment—net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other intangibles—net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Employee supplemental savings plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2008

2007

4,375
407,248
14,200

425,823
16,563
479,516
78,710
14,771
6,329

$

8,048
337,467
19,104

364,619
14,170
451,832
82,976
17,999
5,907

TOTAL ASSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,021,712

$937,503

LIABILITIES AND STOCKHOLDERS’ EQUITY

CURRENT LIABILITIES:

Current portion of debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable and accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued salaries and related expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Billings in excess of revenue earned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Total Current Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Debt—net of current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued retirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other long-term liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income taxes—non-current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44,100
157,407
75,121
8,451

285,079
—
15,930
7,769
32,398

$126,000
100,447
61,429
8,334

296,210
39,000
18,973
7,848
24,167

TOTAL LIABILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

341,176

386,198

COMMITMENTS AND CONTINGENCIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

—

STOCKHOLDERS’ EQUITY:

Common stock, Class A—$0.01 par value; 150,000,000 shares authorized;

21,765,004 and 20,474,379 shares issued at December 31, 2008 and 2007;
21,521,964 and 20,231,339 shares outstanding at December 31, 2008 and
2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Common stock, Class B—$0.01 par value; 50,000,000 shares authorized;

13,958,345 and 14,279,813 shares issued and outstanding at December 31, 2008
and 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional paid-in capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Treasury stock, 243,040 shares at cost at December 31, 2008 and 2007 . . . . . . . . . .
Retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unearned Employee Stock Ownership Plan shares . . . . . . . . . . . . . . . . . . . . . . . . . .

218

205

140
336,454
(9,114)
352,978
(140)
—

143
297,827
(9,114)
262,686
(147)
(295)

TOTAL STOCKHOLDERS’ EQUITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

680,536

551,305

TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY . . . . . . . . . . . . . . . . . . .

$1,021,712

$937,503

See notes to consolidated financial statements.

47

MANTECH INTERNATIONAL CORPORATION

CONSOLIDATED STATEMENTS OF INCOME
(In Thousands Except Per Share Amounts)

Year Ended December 31,

2008

2007

2006

REVENUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative expenses . . . . . . . . . . . . . . . . . . . . . . . .

$1,870,879
1,565,198
152,323

$1,448,098
1,214,150
120,244

$1,137,178
944,150
102,378

OPERATING INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on disposal of operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other (expense) income, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

153,358
—
(3,978)
812
(233)

113,704
—
(5,103)
1,261
263

INCOME FROM CONTINUING OPERATIONS BEFORE

INCOME TAXES

Provision for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INCOME FROM CONTINUING OPERATIONS . . . . . . . . . . . . . . .
(Loss) from operations of discontinued component, net of taxes . . . . . . .
Gain on sale of discontinued operation, net of taxes (sold to CEO) . . . . .

(Loss) from discontinued operations, net of taxes . . . . . . . . . . . . . . . . . .

149,959
(59,667)

110,125
(42,798)

90,292
—
—

—

67,327
(458)
338

(120)

90,650
955
(2,375)
809
382

90,421
(34,825)

55,596
(4,895)
—

(4,895)

NET INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

90,292

$

67,207

$

50,701

BASIC EARNINGS (LOSS) PER SHARE:
Class A common stock
Income from continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Loss) from discontinued operations, net of taxes . . . . . . . . . . . . . . . . . .

Class A basic earnings per share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Weighted average common shares outstanding . . . . . . . . . . . . . . . . . . . .

Class B common stock
Income from continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Loss) from discontinued operations, net of taxes . . . . . . . . . . . . . . . . . .

Class B basic earnings per share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Weighted average common shares outstanding . . . . . . . . . . . . . . . . . . . .

DILUTED EARNINGS (LOSS) PER SHARE:
Class A common stock
Income from continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Loss) from discontinued operations, net of taxes . . . . . . . . . . . . . . . . . .

Class A diluted earnings per share . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Weighted average common shares outstanding . . . . . . . . . . . . . . . . . . . .

Class B common stock
Income from continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Loss) from discontinued operations, net of taxes . . . . . . . . . . . . . . . . . .

Class B diluted earnings per share . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

$

$

$

$

$

$

2.58
—

2.58

20,982

2.58
—

2.58

14,046

2.55
—

2.55

21,413

2.55
—

2.55

$

$

$

$

$

$

$

$

1.97
—

1.97

19,683

1.97
—

1.97

14,431

1.95
—

1.95

20,102

1.95
—

1.95

$

$

$

$

$

$

$

$

1.66
(0.15)

1.51

18,450

1.66
(0.15)

1.51

15,062

1.64
(0.15)

1.49

18,893

1.64
(0.15)

1.49

Weighted average common shares outstanding . . . . . . . . . . . . . . . . . . . .

14,046

14,431

15,062

See notes to consolidated financial statements.

48

MANTECH INTERNATIONAL CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In Thousands)

Year Ended December 31,

2008

2007

2006

NET INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$90,292

$67,207

$50,701

OTHER COMPREHENSIVE (LOSS) INCOME:

Translation adjustments, net of tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuarial gain (loss) on defined benefit pension plans, net of tax . . . . . . . . . .
Adoption of SFAS No. 158, net of tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total other comprehensive income (loss) . . . . . . . . . . . . . . . . . . . . . . .

(29)
36
—

7

6
(33)
—

(27)

(15)
—
(93)

(108)

COMPREHENSIVE INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$90,299

$67,180

$50,593

See notes to consolidated financial statements.

49

MANTECH INTERNATIONAL CORPORATION

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY
(In Thousands)

Common Stock, Class A

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock option exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conversion Class B to Class A common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contribution of Class A common stock to Employee Stock Ownership Plan

(ESOP)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Common Stock, Class B

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conversion Class B to Class A common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Additional Paid-In Capital

December 31,

2008

2007

2006

$

205
10
3

—
218

143
(3)
140

$

190
7
7

1
205

150
(7)
143

180
8
1

1
190

151
(1)
150

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock option exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit from the exercise of stock options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock option expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit from distribution of shares held in grantor trust
. . . . . . . . . . . . . . . . . . . .
Contribution of Class A common stock to ESOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

297,827
22,667
6,834
6,626
—
2,500
336,454

263,409
13,068
2,696
6,706
8,581
3,367
297,827

233,360
16,781
4,362
5,830
—
3,076
263,409

Treasury Stock, at cost

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Treasury stock acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(9,114)
—
(9,114)

—
(9,114)
(9,114)

—
—
—

Retained Earnings

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adoption of FIN 48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

262,686
90,292
—
352,978

195,604
67,207
(125)
262,686

144,903
50,701
—
195,604

Accumulated Other Comprehensive (Loss) Income

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Translation adjustments, net of tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuarial loss on defined benefit pension plans, net of tax . . . . . . . . . . . . . . . . . . . . . .
Adoption of SFAS No. 158, net of tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unearned ESOP Shares

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Increase) Decrease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deferred Compensation

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distribution of shares held in grantor trust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shares Held in Grantor Trust

At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distribution of shares held in grantor trust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Stockholders’ Equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(147)
(29)
36
—
(140)

(295)
295

—

—
—
—

—
—
—

(120)
6
(33)
—
(147)

(217)
(78)

(295)

640
(640)
—

(640)
640
—

(12)
(15)
—
(93)
(120)

—
(217)

(217)

640
—
640

(640)
—
(640)

$680,536

$551,305

$459,016

See notes to consolidated financial statements.

50

MANTECH INTERNATIONAL CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS
(In Thousands)

CASH FLOWS FROM OPERATING ACTIVITIES:
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to reconcile net income to net cash provided by operating

activities:

Loss from discontinued operations, net of tax . . . . . . . . . . . . . . . . . . . . . .
Gain on disposal of operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of discontinued operation, net of tax . . . . . . . . . . . . . . . . . .
Unrealized loss (gain) on warrants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefits from the exercise of stock options . . . . . . . . . . . . . . .
Deferred income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Change in assets and liabilities—net of effects from acquired and disposed

businesses:

Receivables-net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable and accrued expenses . . . . . . . . . . . . . . . . . . . . . .
Accrued salaries and related expenses . . . . . . . . . . . . . . . . . . . . . . .
Billings in excess of revenue earned . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued retirement
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,
2007

2008

2006

$ 90,292

$ 67,207

$ 50,701

—
—
—
—
6,626
(6,446)
8,157
17,323

(62,513)
(223)
59,888
11,768
85
(3,043)
5,352

458
—
(338)
76
6,706
(2,374)
284
14,244

(45,275)
5,498
16,350
(143)
(158)
2,120
231

64,886
(1,562)

4,895
(955)
—
(543)
5,830
(2,918)
(1,271)
10,177

5,180
(4,271)
17,950
4,777
(1,328)
3,546
(897)

90,873
(6,517)

Net cash flow from operating activities of continuing operations . . . . . . . .
Net cash flow from discontinued operations . . . . . . . . . . . . . . . . . . . . . . . . .

127,266
—

Net cash flow from operating activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

127,266

63,324

84,356

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from the sale of property and equipment . . . . . . . . . . . . . . . . . . . . . .
Investment in capitalized software for internal use . . . . . . . . . . . . . . . . . . . . . .
Proceeds from note receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercise of GSE warrants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from sale of GSE shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition of businesses, net of cash acquired . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . .
Proceeds from disposal of operations and equity method investment

Net investing cash flow from continuing operations . . . . . . . . . . . . . . . . . .
Net investing cash flow from discontinued operations . . . . . . . . . . . . . . . . .

(5,050)
—
(2,742)
5,126
—
—
(36,496)
—

(39,162)
—

(2,721)
1,828
(2,113)
—
(133)
600
(275,747)
—

(278,286)
3,000

(5,160)
6
(2,245)
—
—
—
(19,845)
2,000

(25,244)
(465)

Net cash flow from investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(39,162)

(275,286)

(25,709)

See notes to consolidated financial statements.

51

MANTECH INTERNATIONAL CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS—(Continued)
(In Thousands)

CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefits from the exercise of stock options . . . . . . . . . . . . . . . . . . .
Excess tax benefit from distribution of shares held in grantor trust . . . . . . . . .
Treasury stock acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Borrowing under line of credit, non-current . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net (decrease) increase in borrowing under lines of credit, net of associated

Year Ended December 31,

2008

2007

2006

$ 22,677
6,446
—
—
—

$ 13,075
2,374
8,581
(9,114)
39,000

$ 16,790
2,918
—
—
—

origination fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repayment of notes payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(120,900)
—

124,584
—

(42,402)
(121)

Net cash flow from financing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(91,777)

178,500

(22,815)

NET (DECREASE) INCREASE IN CASH AND CASH

EQUIVALENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD . . . . . .

(3,673)
8,048

(33,462)
41,510

35,832
5,678

CASH AND CASH EQUIVALENTS, END OF PERIOD . . . . . . . . . . . . . .

$

4,375

$

8,048

$ 41,510

SUPPLEMENTAL CASH FLOW INFORMATION
Noncash financing activities:

Employee Stock Ownership Plan Contributions . . . . . . . . . . . . . . . . . . . .

$

2,500

$

3,290

$ 2,859

See notes to consolidated financial statements.

52

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Years Ended December 31, 2008, 2007 and 2006

1. Description of the Business

ManTech International Corporation (ManTech) is a leading provider of innovative technologies and
solutions for mission-critical national security programs for the Intelligence Community; the departments of
Defense, State, Homeland Security and Justice; the Space Community and other U.S. federal government
customers. Our expertise includes systems engineering and integration; software services; enterprise architecture;
information operations and computer forensics; information assurance and security architecture; intelligence
operations and analysis support; cyber security; network and critical infrastructure protection; information
technology; communications integration and engineering support; and global
logistics and supply chain
management. With approximately 7,900 highly qualified employees, we operate in the United States and
approximately 40 countries worldwide.

2. Summary of Significant Accounting Policies

Principles of Consolidation—Our consolidated financial statements include the accounts of ManTech
International Corporation, wholly-owned subsidiaries and other entities, which we control. Minority interest
represents minority stockholders’ proportionate share of the equity in one of our consolidated subsidiaries. Our
share of affiliates’ earnings (losses) that we do not control is included in our consolidated statements of income
using the equity method. All inter-company accounts and transactions have been eliminated.

We determine whether we have a controlling financial interest in an entity by evaluating whether or not the
entity is a variable interest entity (VIE) in accordance with Financial Accounting Standards Board (FASB)
Interpretation No. (FIN) 46, Consolidation of Variable Interest Entities as revised, or FIN 46(R). VIEs are
entities in which equity investors do not have the characteristics of a controlling financial interest or do not have
sufficient equity at risk for the entity to finance its activities without additional subordinated financial support.
We consolidate VIEs where ManTech is the primary beneficiary, generally defined as the enterprise that will
absorb a majority of the expected losses or receive a majority of the expected residual returns of the entity, or
both.

We had one entity that has been consolidated under FIN 46(R). The purpose of the entity is to perform on
certain U.S. Navy contracts. The maximum amount of loss we are exposed to as of December 31, 2008 is not
material to our consolidated financial statements.

Use of Accounting Estimates—We prepare our consolidated financial statements in conformity with
accounting principles generally accepted in the United States of America, which requires management to make
estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent
assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses
during the reporting period. These estimates involve judgments with respect to, among other things, various
future economic factors that are difficult to predict and are beyond the control of the Company. Therefore, actual
amounts could differ from these estimates.

Revenue Recognition—We derive the majority of our revenue from cost-plus-fixed-fee, cost-plus-award-
fee, firm-fixed-price or time-and-materials contracts. Revenues for cost reimbursable contracts are recorded as
reimbursable costs are incurred, including an estimated share of the applicable contractual fees earned. For
performance-based fees under cost reimbursable contracts, that are subject to the provisions of American
Institute of Certified Public Accountants (AICPA) Statement of Position (SOP) No. 81-1, Accounting for
Performance of Construction-Type and Certain Production-Type Contracts, or SOP 81-1, we recognize the
relevant portion of the expected fee to be awarded by the client at the time such fee can be reasonably estimated,
based on factors such as our prior award experience and communications with the client regarding performance.
For cost reimbursable contracts with performance-based fee incentives that are subject to the provisions of

53

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Securities and Exchange Commission (SEC) Topic 13, Revenue Recognition, we recognize the relevant portion of
the fee upon customer approval. For time-and-material contracts, revenue is recognized to the extent of billable rates
times hours delivered plus material and other reimbursable costs incurred. For long-term fixed-price production
contracts, revenue is recognized at a rate per unit as the units are delivered or by other methods to measure services
provided. Revenue from other long-term fixed-price contracts is recognized ratably over the contract period or by
other appropriate methods to measure services provided. Contract costs are expensed as incurred except for certain
limited long-term contracts noted below. For long-term contracts, specifically described in the scope section of
SOP 81-1 or other appropriate accounting literature, we apply the percentage of completion method. Under the
percentage of completion method, income is recognized at a consistent profit margin over the period of performance
based on estimated profit margins at completion of the contract. This method of accounting requires estimating the
total revenues and total contract cost at completion of the contract. During the performance of long-term contracts,
these estimates are periodically reviewed and revisions are made as required. The impact on revenue and contract
profit as a result of these revisions is included in the periods in which the revisions are made. This method can result
in the deferral of costs or the deferral of profit on these contracts. Because we assume the risk of performing a fixed-
price contract at a set price, the failure to accurately estimate ultimate costs or to control costs during performance
of the work could result, and in some instances has resulted, in reduced profits or losses for such contracts.
Estimated losses on contracts at completion are recognized when identified. In certain circumstances, revenues are
recognized when contract amendments have not been finalized.

Cost of Services—Cost of services consists primarily of compensation expenses for program personnel, the
fringe benefits associated with this compensation and other direct expenses incurred to complete programs,
including cost of materials and subcontract efforts.

Cash and Cash Equivalents—For the purpose of reporting cash flows, cash and cash equivalents include
cash on hand, amounts due from banks and short-term investments with maturity dates of three months or less at
the date of purchase. Due to the short maturity of cash equivalents, the carrying value on our consolidated
balance sheets approximates fair value.

Property and Equipment—Property and equipment are recorded at original cost. Upon sale or retirement,
the costs and related accumulated depreciation or amortization are eliminated from the respective accounts and
any resulting gain or loss is included in income. Maintenance and repairs are charged to expense as incurred.

Depreciation and Amortization—Furniture and office equipment are depreciated using the straight-line
method with estimated useful lives ranging from five to seven years. Leasehold improvements are amortized
using the straight-line method over the term of the lease.

Inventory—Inventory is included in prepaid expenses and other in our consolidated balance sheets and is
carried at the lower of cost or market. Cost is computed on a specific identification basis. There was no inventory
valuation allowance at December 31, 2008 or December 31, 2007.

Goodwill and Other Intangibles—net—Goodwill represents the excess of cost over the fair value of net
tangible and identifiable intangible assets of acquired companies. Contract rights and other intangibles are
amortized primarily using the pattern of benefits method over periods ranging from three to twenty-five years.

We accounted for the cost of computer software developed or obtained for internal use in accordance with
SOP 98-1, Accounting for the Cost of Computer Software Developed or Obtained for Internal Use. These
capitalized software costs are included in other intangibles, net.

Software Development Costs—We account for software development costs related to software products for
sale, lease or otherwise marketed in accordance with Statement of Financial Accounting Standards (SFAS)

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MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

No. 86, Accounting for the Costs of Computer Software to be Sold, Leased, or Otherwise Marketed. For projects
fully funded by us, significant development costs are capitalized from the point of demonstrated technological
feasibility until the point in time that the product is available for general release to customers. Once the product is
available for general release, capitalized costs are amortized based on units sold or on a straight-line basis over a
five-year period or other such shorter period as may be required. We recorded $1.0 million, $1.4 million and $1.1
million per year of amortization expense for the years ended December 31, 2008, 2007 and 2006, respectively.
Amortization expense for the years ended December 31, 2008 and 2007 include write downs of an acquisition
related intangible asset for internally developed software of $0.8 million and $0.9 million, respectively. The write
downs were based on changes in the estimated net realizable value of the asset. Capitalized software costs included
in other intangibles, net at December 31, 2008 and 2007, were $0.3 million and $1.2 million, respectively.

Impairment of Long-Lived Assets—Whenever events or changes in circumstances indicate that the carrying
amount of long-lived assets may not be fully recoverable, we evaluate the probability that future undiscounted
net cash flows, without interest charges, will be less than the carrying amount of the assets. If any impairment
were indicated as a result of this review, we would recognize a loss based on the amount by which the carrying
amount exceeds the estimated fair value.

We review goodwill at least annually for impairment. We have elected to perform this review annually
during the second quarter of each calendar year and no adjustments were necessary for our continuing operations.

Employee Supplemental Savings Plan Assets—We maintain several non-qualified defined contribution
supplemental retirement plans for certain key employees that are accounted for in accordance with Emerging
Issues Task Force (EITF) Issue No. 97-14, Accounting for Deferred Compensation Arrangements Where
Amounts Earned Are Held in a Rabbi Trust and Invested, or EITF 97-14, as the underlying assets are held in
rabbi trusts with investments directed by the respective employee. A rabbi trust is a grantor trust generally set up
to fund compensation for a select group of management and the assets of this trust are available to satisfy the
claims of general creditors in the event of bankruptcy of the Company. As required by EITF 97-14, the assets
held by the rabbi trusts are recorded at cash surrender value in our consolidated financial statements as Employee
Supplemental Savings Plan (ESSP) assets with a related liability to employees recorded as a deferred
compensation liability in accrued retirement.

Billings In Excess of Revenue—We receive advances and milestone payments from customers that exceed

the revenue earned to date. We classify such items as current liabilities.

Stock-based Compensation—We use the modified prospective method as stated in SFAS 123(R), Share-
Based Payments. Under this method, compensation costs for all awards granted after the date of adoption and the
unvested portion of previously granted awards are measured at an estimated fair value and included in operating
expenses or capitalized as appropriate over the period in which an employee provides service in exchange for the
award. See Note 10 for further discussion regarding stock-based compensation.

Income Taxes—We account for income taxes in accordance with SFAS 109, Accounting for Income Taxes,
as clarified by FIN 48, Accounting for Uncertainty in Income Taxes. Under this method, deferred income taxes
are determined based on the estimated future tax effects of differences between the financial statement and tax
bases of assets and liabilities given the provisions of enacted tax laws. Deferred income tax provisions and
benefits are based on changes to the assets or liabilities from year-to-year. In providing for deferred taxes, we
consider tax regulations of the jurisdictions in which we operate, estimates of future taxable income and available
tax planning strategies. If tax regulations, operating results or the ability to implement tax-planning strategies
vary, adjustments to the carrying value of deferred tax assets and liabilities may be required. Valuation
allowances are recorded related to deferred tax assets based on the “more likely than not” criteria of SFAS 109.

55

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

FIN 48 requires that we recognize the financial statement benefit of a tax position only after determining
that the relevant tax authority would “more likely than not” sustain the position following an audit. For tax
positions meeting the “more likely than not” threshold, the amount recognized in the financial statements is the
largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate settlement with the
relevant tax authority. FIN 48 also provides guidance on measurement, derecognition, classification, interest and
penalties, accounting in interim periods, disclosures and transition. FIN 48 was effective for fiscal years
beginning after December 15, 2006. We adopted the provisions of FIN 48 on January 1, 2007. As a result of the
implementation of FIN 48, we recognized approximately a $0.1 million increase in the liability for unrecognized
tax benefits, which was recorded for as a reduction to the January 1, 2007 balance of retained earnings. See Note
12 for further discussion on the adoption of FIN 48.

Foreign-Currency Translation—All assets and liabilities of foreign subsidiaries are translated into U.S.
dollars at fiscal year-end exchange rates. Income and expense items are translated at average monthly exchange
rates prevailing during the fiscal year. The resulting translation adjustments are recorded as a component of
accumulated other comprehensive income loss.

Comprehensive Income—Comprehensive income is presented in our consolidated statements of changes in
stockholders’ equity. Comprehensive income consists of net income, changes in our unfunded pension liability,
adoption of SFAS 158, Employer’s Accounting for Defined Benefit Pension and Other Postretirement Plans an
amendment of FASB Statement No. 87, 88, 106, and 132(R), and foreign-currency translation adjustments.

Fair Value of Financial Instruments—The carrying value of our cash and cash equivalents, accounts

receivable, accounts payable, accrued expenses and debt approximate their fair values.

Recent Accounting Pronouncements

In December 2007, the FASB issued SFAS 141(R), Business Combinations. The new standard moves closer
to a fair value model by requiring the acquirer to measure all assets acquired and all liabilities assumed at their
respective fair values at the date of acquisition, including the measurement of noncontrolling interests at fair
value. SFAS 141(R) also establishes principles and requirements as to how the acquirer recognizes and measures
goodwill acquired in a business combination or a gain from a bargain purchase and determines what information
to disclose to enable users of the financial statements to evaluate the nature and financial effects of the business
combination. In addition, SFAS 141(R) significantly changes the accounting for business combinations in a
number of areas, including the treatment of contingent consideration, preacquisition contingencies, in-process
research and development, restructuring costs and requires the expensing of acquisition-related costs as incurred.
The effective date of SFAS 141(R) is for fiscal years beginning after December 15, 2008. For transactions
consummated after the effective date of SFAS 141(R), prospective application of the new standard is applied. For
business combinations consummated prior to the effective date of SFAS 141(R), the guidance in SFAS 141,
Business Combinations, is applied. The adoption of SFAS 141(R) is not expected to have a material impact on
our consolidated financial statements.

In December 2007, the FASB issued SFAS 160, Noncontrolling Interests in Consolidated Financial
Statements, which amends Accounting Research Bulletin No. 51, Consolidated Financial Statements, and
provides accounting and reporting standards for the noncontrolling interest in a subsidiary, commonly referred to
as minority interest, and for the deconsolidation of a subsidiary. The new standard requires noncontrolling
interests to be presented separately within equity in the consolidated statement of financial position. Consolidated
net income attributable to the parent and noncontrolling interests will be clearly identified and presented on the
face of our statement of operations. When a change in control of a subsidiary occurs it will either be accounted
for as an equity transaction, when control is maintained, or a gain or loss will be recognized when control is not

56

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

maintained. The remaining noncontrolling interest will be remeasured to fair value when control is lost. SFAS
160 requires that the noncontrolling interest continue to be attributed its share of losses and thus is no longer
limited to the original carrying amount of the noncontrolling interest. This could result in a negative carrying
balance in certain circumstances.

The effective date of SFAS 160 is for fiscal years beginning after December 15, 2008. SFAS 160 will be
applied prospectively as of the beginning of the year in which SFAS 160 is adopted except for presentation and
disclosure requirements, which will be applied retrospectively for all periods presented. We do not expect the
adoption of SFAS 160 to have a material impact on our consolidated financial statements.

On April 25, 2008, the FASB issued FSP No. FAS 142-3, Determination of the Useful Life of Intangible
Assets, or FSP 142-3. FSP 142-3 addresses determining the useful life of an intangible asset when the intangible
asset has renewal or extension options. FSP 142-3 amends SFAS 142, Goodwill and Other Intangible Assets,
useful life assessment criteria in regards to developing assumptions about renewal or extension options to allow
entities to consider its own historical experience in renewing or extending similar arrangements adjusted for
entity-specific factors. SFAS 142 requires entities to determine whether the renewal or extension can be
accomplished without substantial cost or material modifications of the existing terms and conditions in
connection with the asset. FSP 142-3 removes the criteria to consider whether an intangible asset can be renewed
without substantial cost or material modification. The guidance in FSP 142-3 applies prospectively to intangible
assets acquired after December 15, 2008, the effective date of FSP 142-3. The new disclosure requirements of
FSP 142-3 apply to all intangible assets recognized as of, and subsequent to December 15, 2008. We do not
believe the adoption of FSP 142-3 will have a material impact on our consolidated financial statements.

In May 2008, the FASB issued SFAS 162, The Hierarchy of Generally Accepted Accounting Principles,
which establishes the sources of accounting principles and the framework for selecting the principles to be used
in the preparation of financial statements that are presented in conformity with generally accepted accounting
principles (GAAP). The current GAAP hierarchy is set forth in the AICPA Statement on Auditing Standards
No. 69, The Meaning of Present Fairly in Conformity With Generally Accepted Accounting Principles. In issuing
SFAS 162, the GAAP hierarchy now resides in accounting literature established by the FASB versus the AICPA.
The adoption of SFAS 162 will not impact our current practice of preparing financial statements in conformity
with GAAP.

In December 2008, the FASB issued FSP FAS 140-4 and FIN 46(R)-8, Disclosures by Public Entities
(Enterprises) about Transfers of Financial Assets and Interests in Variable Interest Entities, which amends SFAS
140, Accounting for Transfers and Servicing of Financial Assets and Extinguishments of Liabilities, to require
public entities to provide additional disclosures about transfers of financial assets. It also amends FIN 46(R) to
require public enterprises to provide additional disclosures about their involvement with VIEs. FSP FAS 140-1
and FIN 46(R)-8 requires certain disclosures to be provided by a public enterprise that is (a) a sponsor of a
qualifying Special Purpose Entity (SPE) that holds a variable interest in the qualifying SPE but was not the
transferor (nontransferor) of financial assets to the qualifying SPE and (b) a servicer of a qualifying SPE that
holds a significant variable interest in the qualifying SPE but was not the transferor (nontransferor) of financial
assets to the qualifying SPE. FSP FAS 140-4 and FIN 46(R)-8 is effective for the first reporting period ending
after December 15, 2008 and will apply to each annual and interim reporting period thereafter. The adoption of
FSP FAS 140-4 and FIN 46(R)-8 will not impact our financial statements.

In June 2008, the FASB issued FSP EITF 03-6-1, Determining Whether Instruments Granted in Share-Based
Payment Transactions Are Participating Securities. FSP EITF 03-6-1 addresses whether instruments granted in
share-based payment transactions are participating securities prior to vesting and, therefore, need to be included in
the earnings allocation in computing earnings per share (EPS) under the two-class method of SFAS 128,

57

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Earnings per Share. FSP EITF 03-6-1 is effective for financial statements issued for fiscal years beginning after
December 15, 2008 and interim periods within those years. All prior-period EPS data presented will be adjusted
retrospectively (including interim financial statements, summaries of earnings and selected financial data) to
conform to the provisions of FSP EITF 03-6-1. Early application is not permitted. We are currently assessing the
impact that this potential change would have on our financial statements.

In November 2008, the SEC issued for comment a proposed roadmap regarding the potential use by U.S.
issuers of financial statements prepared in accordance with International Financial Reporting Standards (IFRS).
IFRS is a comprehensive series of accounting standards published by the International Accounting Standards
Board (IASB). Under the proposed roadmap, we could be required in fiscal 2014 to prepare financial statements
in accordance with IFRS. The SEC will make a determination in 2011 regarding the mandatory adoption of
IFRS. We are currently assessing the impact that this potential change would have on our consolidated financial
statements and we will continue to monitor the development of the potential implementation of IFRS.

3. Acquisitions

Each of the following acquisitions has been accounted for as a purchase, and accordingly, the operating
results of each of the acquired entities have been included in our consolidated financial statements since the
respective dates of acquisition.

EWA Services Acquisition—On November 28, 2008, we completed the acquisition of all outstanding equity
interests of EWA Services, Inc. (EWA). The results of EWA’s operations have been included in our consolidated
financial statements since that date. The acquisition was consummated pursuant to a stock purchase agreement
(EWA Purchase Agreement), dated November 28, 2008, by and among ManTech Telecommunications and
Information Systems Corp. (MTISC), a wholly owned subsidiary of ManTech, and Electronic Warfare
Associates, Inc., pursuant to which MTISC purchased all the capital stock of EWA from Electronic Warfare
Associates, Inc.

EWA was a subsidiary of a privately held company, providing information technology, threat analysis and
test and evaluation for several Department of Defense agencies. At November 28, 2008, EWA had 167
employees of which nearly 100 percent held security clearances. For the eleven months ended November 30,
2008, EWA’s revenue was approximately $21.4 million.

The acquisition of EWA has expanded our work in Department of Defense and Intelligence missions.

The initial purchase price was $12.3 million, which included a $0.3 million estimated working capital
adjustment. The initial purchase may be increased or reduced if the final closing working capital differs from the
estimated closing working capital pursuant to the Purchase Agreement. The Company and EWA have a 90-day
period following the date of acquisition to finalize any purchase price adjustment, as defined in the EWA Purchase
Agreement. Any potential purchase price adjustment will be based on the Company’s calculation of the closing
working capital, which will be subject to review and approval by EWA. Pursuant to the EWA Purchase Agreement,
$1.2 million of the purchase price was placed into an escrow account to satisfy potential indemnification liabilities
of EWA and its shareholders. The escrow claim period expires 18 months after the purchase closing date. We
primarily utilized borrowings under our credit agreement (see Note 8) to finance the acquisition.

The preliminary purchase price was allocated to the underlying assets and liabilities based on their estimated
fair values at the date of acquisition. The fair value assigned to the assets and liabilities is still under review and
could be adjusted upon completion of our assessment of fair value. Total assets were $14.9 million, including
goodwill and intangible assets recognized in connection with the acquisition, and total liabilities were $2.5 million.
Included in total assets were $2.4 million in acquired intangible assets. We have recorded initial goodwill of $9.0

58

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

million, which will be deductible for tax purposes over 15 years, assuming adequate levels of taxable income.
Recognition of goodwill is largely attributed to the highly skilled employees and the value paid for companies
supporting high-end defense, intelligence and homeland security markets. The assets, liabilities and results of
operations of EWA were not significant to the Company’s consolidated financial position or results of operations.

The components of intangible assets associated with the acquisition were backlog valued at $0.4 million and
customer relationships valued at $2.0 million, respectively. Customer contracts and related relationships
represent the underlying relationships and agreements with EWA’s existing customers. Backlog and customer
relationships are being amortized over their estimated useful lives of 1 year and 20 years, respectively, using the
pattern of benefits method. The weighted-average amortization period for the intangibles is 16.9 years.

Emerging Technologies Group Acquisition—On August 29, 2008, we completed the acquisition of all
outstanding equity interests in Emerging Technologies Group, USA, Inc. (ETG). The results of ETG’s operations
have been included in our consolidated financial statements since that date. The acquisition was consummated
pursuant to an Agreement and Plan of Merger (Merger Agreement), dated August 15, 2008, by and among
ManTech, ETG, certain shareholders of ETG, Project Eagle Inc., a newly formed and wholly owned subsidiary
of the Company (ETG Merger Sub), and a Rights Holder Representative for the shareholders and option holders
of ETG. Pursuant to the terms of the Merger Agreement, ETG Merger Sub merged with and into ETG, with ETG
continuing as the surviving corporation and a wholly owned subsidiary of the Company.

ETG was a privately-held company, providing computer and network forensics

supporting the
counterterrorism and counter intelligence mission around the world. ETG’s customer base focused primarily in
the Intelligence Community and the Department of Defense. At August 29, 2008, ETG had 58 employees of
which nearly 100% held security clearances. For the twelve months ended June 30, 2008, ETG’s revenue was
approximately $14.4 million.

The acquisition of ETG has deepened our capabilities in cyber security and positions us to develop

additional work related to the Comprehensive National Cyber Initiative.

The initial purchase price was $25.1 million, which included $0.1 million in transaction fees. Pursuant to the
Merger Agreement, $3.8 million of the purchase price was placed into an escrow account to satisfy potential
indemnification liabilities of ETG and its shareholders. The escrow claim period expires eighteen months after
the purchase closing date. We primarily utilized borrowings under our credit agreement (see Note 8) to finance
the acquisition.

The preliminary purchase price was allocated to the underlying assets and liabilities based on their estimated
fair values at the date of acquisition. The fair value assigned to the assets and liabilities is still under review and
could be adjusted upon completion of our assessment of fair value. Total assets were $27.2 million, including
goodwill and intangible assets recognized in connection with the acquisition, and total liabilities were $2.0
million. Included in total assets were $4.6 million in acquired intangible assets. Approximately $0.4 million of
the purchase price had been reserved in escrow for payment of certain compensation liabilities. These liabilities
were settled in January 2009. In addition, approximately $0.3 million of the purchase price has been reserved in
escrow related to an outstanding customer receivable. This escrow item is expected to be resolved during the first
quarter of fiscal year 2009. We have recorded initial goodwill of $18.3 million, which will be deductible for tax
purposes over 15 years, assuming adequate levels of taxable income. Recognition of goodwill is largely
attributed to the highly skilled employees and the value paid for companies supporting high-end defense,
intelligence and homeland security markets. The assets, liabilities and results of operations of ETG were not
significant to the Company’s consolidated financial position or results of operations.

The components of

intangible assets associated with the acquisition were backlog and customer
relationships valued at $0.2 million and $4.4 million, respectively. Customer contracts and related relationships

59

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

represent the underlying relationships and agreements with ETG’s existing customers. Backlog and customer
relationships are being amortized over their estimated useful lives of 1 year and 20 years, respectively, using the
pattern of benefits method. The weighted-average amortization period for the intangibles is 19.2 years.

McDonald Bradley Acquisition—On December 18, 2007, we completed the acquisition of all outstanding
equity interests in McDonald Bradley, Inc. (MBI). The results of MBI’s operations have been included in our
consolidated financial statements since that date. The acquisition was consummated pursuant to an Agreement and
Plan of Merger (MBI Merger Agreement), dated November 15, 2007, by and among ManTech, McDonald Bradley,
Spyglass Acquisition Corp., a newly formed and wholly owned subsidiary of the Company (MBI Merger Sub), and
a Shareholder Representative for the shareholders of MBI. Pursuant to the terms of the MBI Merger Agreement,
MBI Merger Sub merged with and into MBI, with MBI continuing as the surviving corporation and a wholly owned
subsidiary of the Company. At December 18, 2007, MBI had 264 employees including approximately two-thirds
who held clearances. For calendar year 2007, MBI’s revenues were $49.5 million.

MBI, was a privately-held company, doing business as a secure information sharing and IT solutions
provider to the federal government with a focus on Department of Defense, Intelligence Community and
Homeland Security markets. MBI is a leading provider of high-end, mission-critical, technology-differentiated
solutions primarily in areas of Service Oriented Architectures, data interoperability and information assurance.

The acquisition of MBI has deepened our capabilities in the high-end defense, intelligence and homeland
security marketplace and strengthens our position as a leading provider of secure information sharing and data
interoperability solutions.

The purchase price was $78.9 million, which included $0.4 million in transaction fees. The initial purchase
price included a closing date working capital adjustment of $1.9 million, which is subject to further adjustment
based upon resolution of escrow. Pursuant to the MBI Merger Agreement, $7.7 million of the purchase price was
placed into an escrow account to satisfy potential indemnification liabilities of the Company and to satisfy
potential expenses of the Shareholder Representative. The escrow term is for a period of sixteen months. We
utilized borrowings under our Credit Agreement (see Note 8) to finance the acquisition.

The purchase price was allocated to the underlying assets and liabilities based on their estimated fair values
at the date of acquisition. Total assets were $85.6 million, including goodwill and intangible assets recognized in
connections with the acquisition, and total liabilities were $6.7 million. Included in total assets were $10.2
million in acquired intangible assets. Other than goodwill and other intangible assets recognized in connection
with the acquisition, the assets, liabilities and result of operations of MBI were not significant to the Company’s
consolidated financial position or results of operations. We recorded initial goodwill of $63.2 million, which,
assuming adequate levels of taxable income, will be deductible for tax purposes over 15 years. Recognition of
goodwill is largely attributed to the highly skilled employees and the value paid for companies supporting
high-end defense, intelligence and homeland security markets.

The primary components of intangible assets associated with the acquisition were backlog and customer
relationships valued at $0.8 million and $9.5 million, respectively. Customer contracts and related relationships
represent the underlying relationships and agreements with MBI’s existing customers. Backlog and customer
relationships are being amortized over their estimated useful lives of 1 year and 20 years, respectively, using the
pattern of benefits method. The weighted-average amortization period for the intangibles is 18.6 years.

SRS Acquisition—On May 7, 2007, we completed the acquisition of all outstanding equity interests in SRS
Technologies (SRS). The results of SRS’s operations have been included in our consolidated financial statements
since that date. The acquisition was consummated pursuant to an Agreement and Plan of Merger (SRS Merger
Agreement), dated April 6, 2007, by and among ManTech, a wholly owned subsidiary of ManTech SRS, certain
shareholders of SRS, and certain persons acting as a representative for the shareholders of SRS. The SRS Merger

60

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Agreement provided for the merger of a wholly owned subsidiary of ManTech with and into SRS, with SRS
surviving the merger and becoming a wholly owned subsidiary of ManTech.

SRS was a privately-held company with specialized domain knowledge in the areas of space-based radar
and communications; chemical, biological, conventional and nuclear weapons detection and defeat programs;
imagery intelligence; and aeronautic, space and information systems development. More than 85 percent of
SRS’s revenue has historically been derived from the U.S. government including Department of Defense,
Intelligence Community and the Department of Homeland Security. SRS had over 800 employees, including
highly-cleared and educated personnel, at May 7, 2007.

The acquisition of SRS has extended our presence in the high-end national security marketplace and
enhances our presence in the U.S. Defense Advance Research Projects Agency (DARPA), Department of
Homeland Security, Missile Defense Agency, National Reconnaissance Office, National Geospatial-Intelligence
Agency and other Department of Defense agencies.

The purchase price was $199.1 million, which included $1.2 million in transaction fees. The purchase price
included a closing date working capital adjustment of $2.9 million. Pursuant to the SRS Merger Agreement and as
security for the SRS shareholders’ indemnification for unanticipated contingencies, an escrow account in the amount of
$36.1 million has been established for a period of three years from the date of acquisition. On May 8, 2008, $11.4
million was paid out of the escrow account and distributed to the respective SRS shareholders. We utilized a
combination of cash on hand and borrowings under our Credit Agreement (see Note 8) to finance the acquisition.

Purchase Price Allocation

The acquisition has been accounted for as a business combination. Under business combination accounting,
the total purchase price was allocated to SRS’s net tangible and identifiable intangible assets based on their
estimated fair values as of May 7, 2007, as set forth below. The excess of the purchase price over the net tangible
and identifiable intangible assets was recorded as goodwill. Recognition of goodwill is largely attributed to the
highly skilled employees of SRS, their presence in the high-end security marketplace and the value paid for
companies in this business. The goodwill is not deductible for tax purposes. The following table represents the
purchase price allocation (in thousands):

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receivables-net
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other
Property and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contract and program intangibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable and accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued salaries and related expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income taxes-current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Billings in excess of revenue earned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income taxes-non-current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued retirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other long-term liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

1,912
44,117
5,180
2,922
332
58
40,900
150,465
(12,018)
(11,821)
(2,312)
(2,744)
(13,705)
(103)
(4,099)

Total purchase price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$199,084

61

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Intangible Assets

In allocating the purchase price, we considered, among other factors, our intention for future use of acquired
assets, analyses of historical financial performance and estimates of future performance of SRS’s contracts. The
components of intangible assets associated with the acquisition were backlog, customer relationships and
technology valued at $17.7 million, $23.1 million and $0.1 million, respectively. Customer contracts and related
relationships represent the underlying relationships and agreements with SRS’s existing customers. Technology
represents certain licenses, patents and software of SRS. Backlog, customer relationships and technology are
being amortized over their estimated useful lives of 9 years, 20 years and 6 years, respectively, using the pattern
of benefits method. The weighted-average amortization period for the intangibles is 15.2 years.

Pro Forma Financial Information

The unaudited financial information in the table below summarizes the combined results of operations of
ManTech and SRS, on a pro forma basis, as though the companies had been combined as of the beginning of
each of the periods presented. The pro forma financial information is presented for informational purposes only
and is not indicative of the results of operations that would have been achieved if the acquisition and borrowings
under our Credit Agreement (see Note 8) had taken place at the beginning of each of the periods presented. The
pro forma financial information for all periods presented includes the business combination accounting effect on
historical ManTech for amortization charges from acquired intangible assets, interest expense at our current level
of debt, removal of SRS’s Chief Executive Officer (CEO) salary and benefit related costs and the related tax
effects (in thousands except per share amounts).

Year Ended December 31,

2007

2006

Revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income from continuing operations—net of taxes . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted earnings per share (Class A and B common stock) . . . . . . . . . . . .

$1,524,689
68,048
$
67,928
$
1.97
$

$1,287,799
55,412
$
50,483
$
1.49
$

GRS Solutions, Inc.—On October 5, 2006, we completed the acquisition of all outstanding shares of GRS
Solutions, Inc. (GRS) for $19.8 million in cash, subject to certain shareholder indemnification obligations. The
source of funds for the acquisition was our available cash.

GRS was a privately held company headquartered in Falls Church, Virginia providing specialized technical,
operational and analytical services to the Intelligence Community. The acquisition improves our strategic
position within the Intelligence Community and strengthens our capabilities in supporting counterterrorism/
counterintelligence missions around the world. For its fiscal year ended September 30, 2006, GRS had revenues
of approximately $10.4 million. For the year ending December 31, 2006, GRS contributed $2.7 million in
revenue to our consolidated results of operations.

The purchase price was $20.0 million, which includes a closing balance sheet adjustment of $(0.2) million
and contingent consideration of $2.2 million based on a defined performance objective, which was met
subsequent to the initial purchase. The purchase price was allocated to the underlying assets and liabilities based
on their estimated fair values. The assets, liabilities and result of operations of GRS were not significant to the
Company’s consolidated financial position or results of operations, and thus pro forma information is not
presented. We recorded goodwill of $11.8 million, which, assuming adequate levels of taxable income, will be
deductible for tax purposes over 15 years. Recognition of goodwill is largely attributed to the highly skilled
employees and the value paid for companies supporting the Intelligence Community.

62

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The components of intangible assets associated with the acquisition are backlog and customer relationships
valued at $3.2 million and $4.7 million, respectively. Customer contracts and related relationships represent the
underlying relationships and agreements with GRS’s existing customers. Backlog and customer relationships are
being amortized straight-line method over their estimated useful lives of 4 years and 15 years, respectively. The
weighted-average amortization period for the intangibles is 10.5 years.

4. Earnings per Share

In SFAS 128 the two-class method is an earnings allocation formula that determines EPS for each class of
common stock according to dividends declared (or accumulated) and participation rights in undistributed
earnings. Under that method, basic and diluted EPS data are presented for each class of common stock.

In applying the two-class method, we determined that undistributed earnings should be allocated equally on
a per share basis between Class A and Class B common stock. Under the Company’s Certificate of Incorporation,
the holders of the common stock are entitled to participate ratably, on a share-for-share basis as if all shares of
common stock were of a single class, in such dividends, as may be declared by the Board of Directors from
time-to-time.

Basic EPS has been computed by dividing net income available to common stockholders by the weighted
average number of shares of common stock outstanding during each period. Shares issued during the period and
shares reacquired during the period are weighted for the portion of the period in which the shares were
outstanding. Diluted EPS has been computed in a manner consistent with that of basic EPS while giving effect to
all potentially dilutive common shares that were outstanding during each period.

The weighted average number of common shares outstanding is computed as follows (in thousands):

Year Ended December 31,

2008

2007

2006

Numerator for net income per Class A and Class B common stock:

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$90,292

$67,207

$50,701

Numerator for basic net income Class A common stock . . . . . . . . . . . . . . . . .
Numerator for basic net income Class B common stock . . . . . . . . . . . . . . . . .

$54,085
$36,207

$38,777
$28,430

$27,913
$22,788

Numerator for diluted net income Class A common stock . . . . . . . . . . . . . . .
Numerator for diluted net income Class B common stock . . . . . . . . . . . . . . .

$54,525
$35,767

$39,122
$28,085

$28,211
$22,490

Basic weighted average common shares outstanding

Class A common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Class B common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20,982
14,046

19,683
14,431

18,450
15,062

Effect of potential exercise of stock options

Class A common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Class B common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

431
—

419
—

443
—

Diluted weighted average common shares outstanding—Class A . . . . . . . . . . .

21,413

20,102

18,893

Diluted weighted average common shares outstanding—Class B . . . . . . . . . . .

14,046

14,431

15,062

For the years ended December 31, 2008 and 2007, options to purchase 431 thousand and 671 thousand
shares, respectively, weighted for the portion of the period in which they were outstanding, were outstanding but

63

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

not included in the computation of diluted EPS because the options’ effect would have been anti-dilutive. For the
years ended December 31, 2008 and 2007, shares issued from the exercise of stock options were 922 thousand
and 635 thousand, respectively.

5. Revenues and Receivables

We deliver a broad array of information technology and technical services solutions under contracts with the
U.S. government, state and local governments and commercial customers. Revenues from the U.S. government
under prime contracts and subcontracts, as compared to total contract revenues, were approximately 98.1%,
97.7% and 97.8% for the years ended December 31, 2008, 2007 and 2006, respectively. The components of
contract receivables are as follows (in thousands):

Billed receivables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unbilled receivables:

Amounts billable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revenues recorded in excess of funding . . . . . . . . . . . . . . . . . . . . . . . . . .
Revenues recorded in excess of milestone billings on fixed price

Year ended
December 31,

2008

2007

$342,619

$298,059

57,505
11,341

32,194
7,792

contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Retainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowance for doubtful accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

929
3,175
(8,321)

3,448
2,127
(6,153)

$407,248

$337,467

Amounts billable consist principally of amounts to be billed within the next month. Revenues recorded in
excess of funding are billable upon receipt of contractual amendments or other modifications. Revenues recorded
in excess of milestone billings on fixed price contracts consist of amounts not expected to be billed within the
next month. The retainage is billable upon completion of the contract performance and approval of final indirect
expense rates by the government. Accounts receivable at December 31, 2008 are expected to be substantially
collected in 2009 except for approximately $3.2 million.

6. Property and Equipment

Major classes of property and equipment are summarized as follows (in thousands):

Furniture and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leasehold improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 27,196
15,543

$ 23,916
13,543

Less: Accumulated depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . .

42,739
(26,176)

37,459
(23,289)

$ 16,563

$ 14,170

December 31,

2008

2007

Depreciation and amortization expense relating to property and equipment for the years ended December 31,

2008, 2007 and 2006 was $4.4 million, $3.6 million and $3.1 million, respectively.

64

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

7. Goodwill and Other Intangibles

During the second quarter, we completed our annual goodwill impairment test. Based on the results of step
one of this test, no impairment losses were identified and performance of step two was not required. The changes
in the carrying amounts of goodwill during 2008 and 2007 are as follows (in thousands):

Gross amount at December 31, 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less: Accumulated amortization (pre adoption of SFAS 142) . . . . . . . . . . . . .

Net amount at December 31, 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition-SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition-MBI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional consideration for the acquisition of GRS . . . . . . . . . . . . . . . . . . . .

Net amount at December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition-ETG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional consideration for the acquisition of MBI . . . . . . . . . . . . . . . . . . . .
Additional consideration for the acquisition of SRS . . . . . . . . . . . . . . . . . . . . .
Acquisition-EWA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net amount at December 31, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$150,345
62,965
200

$ 18,349
223
120
8,992

Goodwill
Balance

$248,429
(10,107)

$238,322

213,510

$451,832

27,684

$479,516

Intangible assets consisted of the following (in thousands):

December 31, 2008

December 31, 2007

Gross Carrying
Amount

Accumulated
Amortization

Net Carrying
Amount

Gross Carrying
Amount

Accumulated
Amortization

Net Carrying
Amount

Amortized intangible assets:
Contract and program

intangibles . . . . . . . . . . . . . . . . $103,255
10,138

Capitalized software for sale . . . .
Capitalized software for internal

use . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . .

15,119
58

$29,913
9,847

$73,342
291

$ 96,240
11,672

$20,265
10,430

$75,975
1,242

10,093
7

5,026
51

13,699
57

7,997
—

5,702
57

$128,570

$49,860

$78,710

$121,668

$38,692

$82,976

Aggregate amortization expense relating to intangible assets for the years ended December 31, 2008, 2007
and 2006 was $12.5 million, $10.1 million and $6.9 million, respectively. Amortization expense for the year
ended December 31, 2008 includes a write down of an acquisition related intangible asset for internally
developed software of $0.6 million. The write down was based on a change in the estimated net realizable value
of the asset. We estimate that we will have the following amortization expense for the future periods indicated
below (in thousands):

Year ending:

December 31, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$11,785
9,723
6,822
5,593
4,726

65

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

8. Debt

Borrowings consisted of the following (in thousands):

Revolving credit facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Less: Current portion of debt

$44,100
44,100

$165,000
126,000

Debt—net of current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ — $ 39,000

December 31,

2008

2007

On April 30, 2007, we terminated our credit facility with a syndicate of lenders led by Citizens Bank of
Pennsylvania, as administrative agent (see below), and executed a new revolving credit agreement with a
syndicate of lenders led by Bank of America, N.A, as administrative agent. The Credit Agreement allows for
greater available capital to help fund future acquisitions and growth. We expensed the remaining unamortized
deferred debt expense of $0.2 million on April 30, 2007. The Credit Agreement provides for a $300.0 million
revolving credit facility, with a $25.0 million letter of credit sublimit and a $30.0 million swing line loan
sublimit. The Credit Agreement also contains an accordion feature that permits the Company to arrange with the
lenders for them to provide up to $100.0 million in additional commitments. We incurred $1.4 million in
financing cost related to the Credit Agreement, which has been deferred and will be amortized over the term of
the agreement. The maturity date for the Credit Agreement is April 30, 2012.

Borrowings under the Credit Agreement are collateralized by our assets and bear interest at one of the
following rates as selected by the Company: a London Interbank Offer Rate (LIBOR) based rate plus market-rate
spreads that are determined based on the Company’s leverage ratio calculation (0.875% to 1.5%), the lender’s
base rate, which is the lower of the Federal Funds Rate plus 0.5% or Bank of America’s prime lending rate. At
December 31, 2008, the borrowing rate on our outstanding debt was 0.64%. The aggregate annual weighted
average interest rates were 2.42% and 3.53% for 2008 and 2007, respectively.

The terms of the Credit Agreement permit prepayment and termination of the loan commitments at any time,
subject to certain conditions. The Credit Agreement requires the Company to comply with specified financial
covenants, including the maintenance of a certain leverage ratio and fixed charge coverage ratio. The Credit
Agreement also contains various covenants, including affirmative covenants with respect to certain reporting
requirements and maintaining certain business activities, and negative covenants that, among other things, may limit
our ability to incur liens, incur additional indebtedness, make investments, make acquisitions, pay cash dividends and
undertake certain additional actions. As of, and during, December 31, 2008 and 2007, we were in compliance with our
financial covenants under the Credit Agreement as well as the prior credit facility with Citizens Bank.

The total interest paid was $3.7 million, $5.0 million and $2.3 million for the years ended December 31,

2008, 2007 and 2006, respectively.

We had $44.1 million outstanding on our credit facility at December 31, 2008 and $165.0 million
outstanding at December 31, 2007. The weighted average borrowings under the revolving portion of the facility
during the years ended December 31, 2008 and 2007 were $122.3 million and $84.7 million, respectively. The
maximum additional available borrowing under the credit facility at December 31, 2008 was $255.2 million. At
both December 31, 2008 and 2007, we were contingently liable under letters of credit totaling $0.7 million,
which reduces our availability to borrow under our credit facility.

Debt outstanding at December 31, 2008 is estimated to be repaid in 2009. Borrowings on the credit facility

are due on the maturity date of the credit agreement, April 30, 2012.

66

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

In 2006 and through April 30, 2007, we maintained a Credit and Security Agreement with Citizens Bank of
Pennsylvania. The agreement initially provided for a $125 million credit facility that could be increased to $200
million. The maturity date of the agreement was February 25, 2009.

9. Commitments and Contingencies

Payments to us on cost-reimbursable contracts with the U.S. government are provisional payments subject
to adjustment upon audit by the Defense Contract Audit Agency (DCAA). The majority of audits through 2002,
2003 and 2004 have been completed and resulted in no material adjustments. The remaining audits for 2002
through 2008 are not expected to have a material effect on the results of future operations.

In the normal course of business, we are involved in certain governmental and legal proceedings, claims and
disputes and have litigation pending under several suits. We believe that the ultimate resolution of these matters
will not have a material effect on our financial position, results of operations or cash flows.

We lease office space and equipment under long-term operating leases. A number of the leases contain
renewal options and escalation clauses. At December 31, 2008, aggregate future minimum rental commitments
under these leases are as follows (in thousands):

Office Space

Equipment

Total

Year ending:
December 31, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 24,189
22,829
21,479
17,155
13,621
26,644

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$125,917

$2,245
926
481
289
128
—

$4,069

$ 26,434
23,755
21,960
17,444
13,749
26,644

$129,986

Office space and equipment rent expense totaled approximately $53.4 million, $33.0 million and $28.0

million for the years ended December 31, 2008, 2007 and 2006, respectively.

We had $7.2 million and $6.3 million of deferred rent liabilities resulting from recording rent expense on a
straight-line basis over the life of the respective lease in accordance with SFAS 13, Accounting for Leases, and
FASB Technical Bulletin No. 85-3, Accounting for Operating Leases with Scheduled Rent Increases, for the
years ended 2008 and 2007, respectively.

10. Stockholders’ Equity and Stock Options

Common Stock—We have 150,000,000 shares of authorized Class A common stock, par value $0.01 per
share. We have 50,000,000 shares of authorized Class B common stock, par value $0.01 per share. On
December 31, 2008, there were 21,521,964 shares of Class A common stock outstanding, 243,040 shares of
Class A common stock recorded as treasury stock, and 13,958,345 shares of Class B common stock outstanding.

Holders of Class A common stock are entitled to one vote for each share held of record and holders of Class
B common stock are entitled to ten votes for each share held of record, except with respect to any “going private
transaction” (generally, a transaction in which George J. Pedersen (our Chairman of the Board and CEO), his
affiliates, his direct and indirect permitted transferees or a group, generally including Mr. Pedersen, such
affiliates and permitted transferees, seek to buy all outstanding shares), as to which each share of Class A
common stock and Class B common stock are entitled to one vote per share. The Class A common stock and the

67

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Class B common stock vote together as a single class on all matters submitted to a vote of stockholders,
including the election of directors, except as required by law. Holders of common stock do not have cumulative
voting rights in the election of directors.

Stockholders are entitled to receive, when and if declared by the Board of Directors from time-to-time, such
dividends and other distributions in cash, stock or property from our assets or funds legally available for such
purposes subject to any dividend preferences that may be attributable to preferred stock that may be authorized.
Each share of Class A common stock and Class B common stock is equal in respect of dividends and other
distributions in cash, stock or property, except that in the case of stock dividends, only shares of Class A common
stock will be distributed with respect to the Class A common stock and only shares of Class B common stock will
be distributed with respect to Class B common stock. In no event will either Class A common stock or Class B
common stock be split, divided or combined unless the other class is proportionately split, divided or combined.

The shares of Class A common stock are not convertible into any other series or class of securities. Each
share of Class B common stock, however, is freely convertible into one share of Class A common stock at the
option of the Class B stockholder. Upon the death or permanent mental incapacity of the Mr. Pedersen, all
outstanding shares of Class B common stock automatically convert to Class A common stock.

Preferred Stock—We are authorized to issue an aggregate of 20,000,000 shares of preferred stock, $0.01
par value per share, the terms and conditions of which are determined by our Board of Directors upon issuance.
The rights, preferences and privileges of holders of our common stock are subject to, and may be adversely
affected by, the rights of holders of any shares of preferred stock that we may designate and issue in the future.
At December 31, 2008 and 2007, no shares of preferred stock were outstanding and the Board of Directors
currently has no plans to issue a series of preferred stock.

Shares Held in Grantor Trust—At December 31, 2006 there were 609,296 shares of Class B common
stock, with a cost value of $0.6 million, reflected in equity in accordance with EITF 97-14. These shares were
held in a rabbi trust to satisfy a defined contribution pension obligation, to be paid in stock for the benefit of
Mr. Pedersen.

On January 8, 2007, Mr. Pedersen received a distribution of 609,296 shares of Class B common stock, which
had been held by the ManTech International Corporation Supplemental Executive Retirement Plan for the benefit of
George J. Pedersen (GJP SERP). The Class B common stock is convertible into Class A common stock at any time
on a one-for-one basis and has no expiration date. On January 8, 2007, Mr. Pedersen converted 243,040 shares of
Class B common stock to 243,040 shares of Class A common stock to satisfy tax withholding requirements.

The converted shares were surrendered to the Company to pay taxes applicable to the distribution of all GJP
SERP shares on Mr. Pedersen’s behalf. The taxes have been paid and the shares have been accounted for as treasury
stock on our consolidated balance sheets, using the cost method, at a value of $9.1 million. In addition, we
recognized an $8.6 million tax benefit on the distribution from the trust. The tax benefit was recorded to additional
paid-in capital and is reported as a cash inflow from financing activities on our statements of cash flows.

Accounting for Stock-Based Compensation:

Stock Options—In June 2006, the Company’s stockholders approved our 2006 Management Incentive Plan
(the Plan), which was designed to enable us to attract, retain and motivate key employees. The Plan amended and
restated the Company’s Management Incentive Plan that was approved by the Company’s stockholders prior to
the initial public offering in 2002 (the 2002 Plan). In connection with the creation of the Plan, all options
outstanding under the 2002 Plan and the ManTech International Corporation 1995 Long-Term Incentive Plan

68

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

were assumed. Awards granted under the Plan are settled in shares of Class A common stock. At the beginning of
each year, the Plan provides that the number of shares available for issuance automatically increases by an
amount equal to one and one-half percent of the total number of shares of Class A and Class B common stock
outstanding on December 31st of the previous year. On January 1, 2009, 532,205 additional shares were made
available for issuance under the Plan. Through December 31, 2008, the aggregate number of shares of our
common stock authorized for issuance under the Plan was 7,312,650. Through December 31, 2008, 3,343,983
shares of our Class A common stock have been issued as a result of the exercise of the options granted under the
Plan. The Plan expires in June 2016.

The Plan is administered by the compensation committee of our Board of Directors, along with its delegates.
Subject to the express provisions of the Plan, the committee has Board of Directors’ authority to administer and
interpret the Plan, including the discretion to determine the exercise price, vesting schedule, contractual life and
the number of shares to be issued.

We typically issue options that vest in three equal installments, beginning on the first anniversary of the date
of grant. Prior to January 1, 2006, we typically issued options under the 2002 Plan that expired ten years after the
date of grant. Under the terms of the Plan, the contractual life of the option grants may not exceed eight years.
During the years ended December 31, 2008 and 2007, we issued options that expire five years from the date of
grant. The Company expects that it will continue to issue options that expire five years from the date of grant for
the foreseeable future.

Stock Compensation Expense—For the years ended December 31, 2008, 2007 and 2006, we recorded $6.6
million, $6.7 million and $5.8 million of stock-based compensation cost, respectively. No compensation expense
for employees with stock options, including stock-based compensation expense, was capitalized during the
periods. As of December 31, 2008, there was $9.6 million of unrecognized compensation cost related to share-
based compensation arrangements that we expect to vest. The weighted-average period over which expense is
expected to be recognized is 1.7 years.

Prior to the adoption of SFAS 123(R), we reported tax benefits from the exercise of stock options as an
operating cash flow in our consolidated statements of cash flows. In the period beginning January 1, 2006, excess
tax benefits from the exercise of stock options are presented as a cash inflow from financing activities. For the
years ended December 31, 2008, 2007 and 2006 the total recognized tax benefits from the exercise of stock
options were $6.9 million, $2.7 million and $4.4 million, respectively.

Fair Value Determination—We have used the Black-Scholes-Merton option pricing model to determine
fair value of our awards on date of grant. We will reconsider the use of the Black-Scholes-Merton model if
additional information becomes available in the future that indicates another model would be more appropriate or
if grants issued in future periods have characteristics that cannot be reasonably estimated under this model.

The following weighted-average assumptions were used for option grants during the years ended

December 31, 2008, 2007 and 2006:

Expected Volatility. The expected volatility of the options granted was estimated based upon historical

volatility of the Company’s share price through weekly observations of the Company’s trading history.

Expected Term. The expected term of options granted to employees during 2008 and 2007 was determined
from historical exercises of the grantee population. Due to a lack of historical exercise data, the expected term of
option grants during 2006 and grants to our Board of Directors for all years were determined under the simplified
calculation provided by SAB 107, Share-Based Payments, ((vesting term + original contractual term)/2).

69

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Risk-free Interest Rate. The yield on zero-coupon U.S. Treasury strips was used to extrapolate a forward-
yield curve. This “term structure” of future interest rates was then input into a numeric model to provide the
equivalent risk-free rate to be used in the Black-Scholes-Merton model based on expected term of the underlying
grants.

Dividend Yield. The Black-Scholes-Merton valuation model requires an expected dividend yield as an input.
We have not issued dividends in the past nor do we expect to issue dividends in the future. As such, the dividend
yield used in our valuations for all years presented was zero.

The following table summarizes weighted-average assumptions used in our calculations of fair value for the

years ended December 31, 2008, 2007 and 2006:

Year Ended December 31,

2008

2007

2006

Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected life of options (in years) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.00%
0.00%
0.00%
34.58% 35.62% 41.99%
4.68%
4.27%
1.81%
3.50
3.10
2.96

Stock Option Activity—During the year ended December 31, 2008; we granted stock options to purchase
724,250 shares of class A common stock at a weighted-average exercise price of $45.27 per share, which reflects
the fair market value of the shares on the date of grant. The weighted-average fair value of options granted during
the years ended December 31, 2008, 2007 and 2006 as determined under the Black-Scholes-Merton valuation
model, was $11.61, $11.55 and $11.13, respectively. These options vest in three equal installments over three
years and have a contractual term of five years. Option grants that vested during the years ended December 31,
2008, 2007 and 2006 had a combined fair value of $6.3 million, $6.0 million and $4.9 million, respectively.

Information with respect to stock option activity and stock options outstanding at December 31, 2008, 2007

and 2006, was as follows:

Shares under option, December 31, 2005 . . . . . . . . . . . . . . . . . . . . . . . .
Options granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options cancelled and expired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shares under option, December 31, 2006 . . . . . . . . . . . . . . . . . . . . . . . .
Options granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options cancelled and expired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shares under option, December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . .
Options granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options cancelled and expired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Number of
Shares

2,710,742
609,500
(874,301)
(190,822)

2,255,119
796,000
(635,471)
(114,406)

2,301,242
724,250
(922,014)
(142,329)

Shares under option, December 31, 2008 . . . . . . . . . . . . . . . . . . . . . . . .

1,961,149

Weighted
Average
Exercise Price

Aggregate
Intrinsic Value
(in thousands)

$20.38
$30.61
$19.20
$24.92

$21.00
$36.41
$20.57
$27.33

$28.30
$45.27
$24.61
$36.55

$35.75

$12,666

$14,772

$24,383

$36,164

70

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table summarizes nonvested stock options for the year ended December 31, 2008:

Nonvested stock options at December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . .
Options granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested during period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options cancelled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Number of
Shares

1,308,494
724,250
(600,219)
(117,663)

Nonvested shares under option, December 31, 2008 . . . . . . . . . . . . . . . . . . . .

1,314,862

Weighted
Average
Fair Value

$11.04
$11.61
$10.51
$11.34

$11.51

Information concerning stock options exercisable and stock options expected to vest at December 31, 2008:

Weighted
Average
Remaining
Contractual Life
(years)

Options
Exercisable

Weighted
Average
Exercise Price

Aggregate
Intrinsic Value
(in thousands)

Stock options exercisable . . . . . . . . . . . . . . . . . . . . . . .
Stock options expected to vest . . . . . . . . . . . . . . . . . . .

646,287
1,184,382

4.3
3.7

$26.32
$40.11

$18,015
$16,676

Options exercisable and expected to vest . . . . . . . . . . .

1,830,669

11. Retirement Plans

We maintain nonqualified supplemental defined benefit pension plans for certain retired employees of an
acquired company. The weighted average assumptions used in accounting for our pension plans in 2008, 2007
and 2006 were as follows:

Discount rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected return on plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rate of compensation increase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.75% 5.75% 5.75%
N/A
N/A
N/A
N/A

N/A
N/A

2008

2007

2006

The discount rate is the estimated rate at which the obligation for pension benefits could effectively be
settled. The plans were informally and partially funded beginning in 1999 through a rabbi trust. Pursuant to
SFAS 132(R), Employer’s Disclosures about Pensions and Other Postretirement Benefits an amendment of
FASB Statements No. 87, 88, and 106, assets held in a rabbi trust are not eligible to be included in the calculation
of plan status. At both December 31, 2008 and 2007, 100% of the rabbi trust assets were invested in a money
market account with a commercial bank. The rate of compensation increase is not applicable as all covered
employees have retired prior to 1998.

71

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table sets forth the status of the plans (in thousands):

Year Ended December 31,

2008

2007

Change in benefit obligation:
Benefit obligation at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuarial loss (gain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 1,859
104
(58)
(175)

Benefit obligation at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1,730

Change in plan assets:
Fair value of plan assets at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . .
Employer contribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Investment income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fair value of plan assets at end of period . . . . . . . . . . . . . . . . . . . . . . . . . .

Funded status at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrecognized actuarial loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrecognized prior-service cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—
175
—
(175)

—

(1,730)
148
—

$ 1,885
105
54
(185)

1,859

—
185
—
(185)

—

(1,859)
206
—

Net amount recognized at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . .

$(1,582)

$(1,653)

The components of net periodic pension cost for the Company’s defined benefit plans are provided in the

following table (in thousands):

Interest cost on projected benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net amortization of prior-service cost and transition obligation . . . . . . . . . . . . . . . . . .

2008

$104
1

Net periodic pension cost

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$105

2007

$105
1

$106

2006

$105
28

$133

Year Ended December 31,

The following table sets forth our estimated future benefit payments under our plans (in thousands):

For years ending December 31:

2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter

$171
167
164
166
162
900

In the fourth quarter of 2006, we adopted SFAS 158. Upon adoption, we increased our deferred income tax
asset for pensions by $59 thousand to $832 thousand, increased our liability for pension benefits by $136
thousand to $1.9 million, and recorded $93 thousand, net of taxes, to other comprehensive income.

72

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

As of December 31, 2008, we maintained five qualified defined contribution plans in addition to an
Employee Stock Ownership Plan (ESOP). Our qualified plans cover substantially all employees and comply with
Section 401 of the Internal Revenue Code. Under four of these plans, we stipulated a basic matching contribution
that matches a portion of the participants’ contribution based upon a defined schedule. Contributions are invested
by an independent investment company in one or more of several investment alternatives. The choice of
the election of each participating employee. Additionally, we maintain one
investment alternatives is at
discretionary contribution plan. Annual contributions are at the discretion of the Company and are based on a
percentage of eligible employees’ compensation. Employees do contribute to this discretionary plan. Our
contributions to the plan were approximately $18.5 million, $16.4 million and $11.1 million for the years ended
December 31, 2008, 2007 and 2006, respectively.

Prior to 2008, we maintained non-qualified defined contribution supplemental retirement plans for certain
key employees. Under these plans we accrued a stated annual amount, which could also include interest at the
greater of 10% or our annual rate of return on investments. We incurred expenses associated with these plans and
contributed $50 thousand for the year ended December 31, 2006. In 2007, these plans were terminated and no
contributions were made. See Note 10 for more detail regarding the termination of one of these plans.

We also maintain an ESSP (a non-qualified deferred compensation plan) for certain key employees. Under
this plan, eligible employees may defer up to 75% of qualified annual base compensation and 100% of bonus. In
the ESSP, participant deferral accounts are credited with a rate of return based on investment elections as
selected by the participant. The assets related to the ESSP are held in a rabbi trust owned by the Company for
benefit of the participating employees. The trust investments are in the form of variable universal life insurance
products, which are owned by the Company (COLI). These investments seek to replicate the return of the
participant investment elections. Participant contributions to this plan were approximately $5.1 million, $4.8
million and $3.3 million for the years ended December 31, 2008, 2007 and 2006, respectively.

On December 18, 1998, the Board of Directors approved the establishment of a qualified ESOP, effective
January 1, 1999, for the benefit of substantially all of our U.S. domestic-based employees. The ESOP is
non-leveraged and is funded entirely through Company contributions based on a percentage of eligible employee
compensation, as defined in the plan. Participants must be employees of the Company or eligible Company
subsidiaries and must meet minimum service requirements to be eligible for annual contributions. The ESOP
specifies a five-year vesting schedule over which participants become vested in the Class A common stock
allocated to their participant account. The amount of our annual contribution to the ESOP is at the discretion of
our Board of Directors.

For the years ended December 31, 2008, 2007 and 2006, we recorded $2.7 million, $3.3 million and $2.6
million, respectively, as compensation expense related to ESOP contributions. Shares contributed to the ESOP in
2008, 2007 and 2006, were 51,581, 76,011 and 86,227, respectively, of Class A common stock. We had a
balance in unearned ESOP shares of $0.0 and $0.3 million at December 31, 2008 and 2007, respectively.

As required under SOP 93-6, Employers’ Accounting for Employee Stock Ownership Plans, compensation
expense is recorded for shares committed to be released to employees based on the fair market value of those
shares in the period in which they are committed to be released. For the years ended December 31, 2008, 2007
and 2006, new shares were issued to satisfy this obligation.

73

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

12. Income Taxes

The domestic and foreign components of income before provision for income taxes and minority interest;

and without discontinued operations were as follows (in thousands):

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$150,006
(89)

$110,189
(40)

$90,225
196

$149,917

$110,149

$90,421

Year Ended December 31,

2008

2007

2006

The provision for income taxes was comprised of the following components (in thousands), and without

discontinued operations:

Current provision (benefit):
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deferred provision (benefit):
Federal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Provision resulting from allocating tax benefits directly to

additional paid in capital and changes in FIN 48 liabilities:

Federal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2008

2007

2006

$38,552
5,639
315

$27,067
4,593
(5)

$26,992
4,665
228

44,506

31,655

31,885

6,659
1,498

8,157

6,045
959

7,004

137
(440)

(303)

(1,192)
(231)

(1,423)

9,541
1,905

11,446

3,731
632

4,363

Total provision for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$59,667

$42,798

$34,825

There were no discontinued operations for the year ended December 31, 2008. Net income tax benefit on
discontinued operations was $0.1 million and $2.6 million and the effective tax rates were 41.3% and 35.0% for
the years ended December 31, 2007 and 2006, respectively.

For 2008, the non-current provision for income tax includes $6.8 million from amounts arising from the
exercise of stock options allocated to equity; and $0.2 million related to FIN 48 liabilities. For 2007, the
non-current provision includes $2.7 million for exercise of stock options and $8.6 million for payment of a stock
based Supplemental Executive Retirement Plan for the benefit of Mr. Pedersen (GJP SERP), both allocated to
equity; and $0.1 million related to FIN 48 liabilities. For 2006, the non-current provision represents only amounts
for the exercise of stock options allocated to equity.

74

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The provision for income taxes varies from the amount of income tax determined by applying the applicable

U.S. statutory tax rate to pre-tax income, as a result of discontinued operations and the following:

Statutory U.S. Federal tax rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increase (decrease) in rate resulting from:
State taxes—net of Federal benefit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment to prior year’s Federal, state and foreign taxes . . . . . . . . . . . . .
Nondeductible items:
Meals and entertainment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other, net

Year Ended December 31,

2008

2007

2006

35.0% 35.0% 35.0%

3.5
—
(0.6)

0.3
1.6
—

3.6
—
(0.3)

0.3
0.4
(0.1)

3.6
(0.1)
(0.3)

0.3
(0.1)
0.1

Effective tax rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39.8% 38.9% 38.5%

The Company paid income taxes, net of refunds, of $40.0 million, $31.3 million and $30.4 million for the

years ended December 31, 2008, 2007 and 2006, respectively.

Deferred income taxes arise from temporary differences between the tax basis of assets and liabilities and
their reported amounts in the financial statements. A summary of the tax effect of the significant components of
deferred income taxes, without discontinued operation, follows (in thousands):

December 31,

2008

2007

Gross deferred tax liabilities:
Unbilled receivables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill and other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property & Equipment

$ 7,476
43,459
1,717

$ 7,191
36,887
219

Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

52,652

44,297

Gross deferred tax assets:
Capital and State operating loss carryforwards . . . . . . . . . . . . . . . . . . . . . . . . .
Retirement and other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowance for potential contract losses and other contract reserves . . . . . . . . .

(184)
(18,438)
(3,044)

(186)
(18,690)
(2,691)

Total deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(21,666)

(21,567)

Net deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 30,986

$ 22,730

The tax benefits associated with nonqualified stock options, disqualifying dispositions of incentive stock
options and a stock based SERP reduced the current taxes payable by $6.8 million in 2008 and $11.3 million in
2007. Such benefits were recorded as an increase to additional paid-in capital.

At December 31, 2008, we had state net operating losses of approximately $0.3 million that expire

beginning 2013 through 2028.

In 2005, a $1.3 million valuation allowance against certain state net operating losses incurred by our MSM
Security Services subsidiary (MSM) was reflected in discontinued operations. In 2006, this valuation allowance

75

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

increased to $2.0 million and was transferred into continuing operations after the merger of MSM, Inc. into
MSM, LLC on December 18, 2006. In 2007, $0.3 million of this valuation allowance was removed, as the related
deferred tax asset became utilizable; and the balance was removed, as the related tax asset is an unrecognized tax
benefit, which is not more likely than not of being recognized.

Adoption of FIN 48

In June 2006, the FASB issued FIN 48, which clarifies the accounting for uncertainty in tax positions. FIN
48 seeks to reduce the diversity in accounting practices used in regards to uncertain tax positions by prescribing a
recognition threshold and measurement criteria for benefits related to income taxes.

Effective January 1, 2007, we adopted the provisions of FIN 48. Previously, the Company had accounted for
tax contingencies in accordance with SFAS 5, Accounting for Contingencies. As required by FIN 48, the
Company recognizes the financial statement benefit of a tax position only after determining that the relevant tax
authority would more likely than not sustain the position following an audit. For tax positions meeting the more
likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater
than 50 percent likelihood of being realized upon ultimate settlement with the relevant tax authority.

At the adoption date, the Company applied FIN 48 to all tax positions for which the statute of limitations
remained open. As a result of the implementation of FIN 48,
the Company recognized an increase of
approximately $0.1 million in the liability for net unrecognized tax benefits, interest and penalties, which was
accounted for as a reduction to the January 1, 2007 balance of retained earnings.

The total liability for gross unrecognized tax benefits as of January 1, 2007, was $1.3 million. That amount
included $0.3 million of unrecognized net tax benefits which, if ultimately recognized, would reduce the
Company’s annual effective tax rate in a future period. From January 1, 2007 through December 31, 2007, there
were changes in the liability for gross unrecognized tax benefits totaling $1.0 million in gross unrecognized tax
benefits. Additionally, the SRS and MBI acquisitions in 2007 added additional liabilities for gross unrecognized
tax benefits of $0.7 million. Since December 31, 2007,
there were changes in the liabilities for gross
unrecognized tax benefits totaling $(1.4) million in gross unrecognized tax benefits. A reconciliation of the
beginning and ending balances of the total amounts of gross unrecognized tax benefits is as follows (in
thousands):

Gross unrecognized tax benefits at beginning of year . . . . . . . . . . . . . . . . . . .
Increases in tax positions related to prior years . . . . . . . . . . . . . . . . . . . . . . . . . . .
Decreases in tax positions for prior years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increases in tax positions for current year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settlements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lapse in statute of limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisitions—increase in tax positions for prior years . . . . . . . . . . . . . . . . . . . . .
Acquisitions—decrease in tax positions for prior years . . . . . . . . . . . . . . . . . . . . .

December 31,

2008

2007

$ 2,962
85
(107)
231
(1,642)
(7)

—

(6)

$ 1,310
1,096
(111)
392
(366)
(30)
2,966
(2,295)

Gross unrecognized tax benefits at end of year . . . . . . . . . . . . . . . . . . . . . . . . .

$ 1,516

$ 2,962

The total liability for gross unrecognized tax benefits as of December 31, 2008 and 2007, were $1.5 million
and $3.0 million, respectively. That amount includes $1.2 million and $2.1 million, respectively, of unrecognized
net tax benefits which, if ultimately recognized, would reduce the Company’s annual effective tax rate in a future
period.

76

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The Company is subject to income taxes in the U.S and various state and foreign jurisdictions. Tax statutes
and regulations within each jurisdiction are subject to the interpretation and require significant judgment to
apply. The Company is currently under examination by one state jurisdiction for years subsequent to 2003. Two
state audits relating to pre-2003 years were settled in 2007. Otherwise, the Company is no longer subject to U.S.,
state, or non-U.S. income tax examinations by tax authorities for the years before 2003. In 2008 the Company
settled an audit by the Internal Revenue Service for amended 2003 and 2004 U.S. tax returns filed to claim
research and experimentation credits and the unrecognized tax benefits were recognized. Also, in 2008 the
Company settled an amnesty case with Belgium for all years prior to 2008 and the unrecognized tax benefits
were recognized. The Company believes it is reasonably possible that $0.2 million of gross unrecognized tax
benefits will be settled within the next twelve months due to expirations of statute of limitations.

The Company recognizes interest accrued, related to net unrecognized tax benefits, in interest expense; and
penalties,
in general and administrative expenses; for all periods presented. The Company had accrued
approximately $0.1 million for the payment of interest and penalties at adoption. $0.1 million of interest, accrued
prior to the adoption of FIN 48, was paid for the two settled state audits in 2007. Subsequent changes in 2007 to
accrued interest and penalties have been an increase of $0.1 million. At December 31, 2008, accrued interest and
penalties relating to net unrecognized tax benefits was $0.2 million.

13. Business Segment and Geographic Area Information

We operate as one segment, delivering a broad array of information technology and technical services
solutions under contracts with the U.S. government, state and local governments and commercial customers. Our
federal government customers typically exercise independent contracting authority, and even offices or divisions
within an agency or department may directly, or through a prime contractor, use our services as a separate
customer so long as that customer has independent decision-making and contracting authority within its
organization. Revenues from the U.S. government under prime contracts and subcontracts, as compared to total
contract revenues, were approximately 98.1%, 97.7% and 97.8% for the years ended December 31, 2008, 2007
and 2006, respectively. There were no sales to any customers within a single country (except for the United
States) where the sales accounted for 10% or more of total revenue. We treat sales to U.S. government customers
as sales within the United States regardless of where the services are performed. Substantially all assets of
continuing operations were held in the United States for the years ended December 31, 2008, 2007 and 2006.
Revenues by geographic customer and the related percentages of total revenues for the years ended December 31,
2008, 2007 and 2006, were as follows (dollars in thousands):

United States . . . . . . . . . . . . . . . . . . . . . . . . .
International . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,849,662
21,217

98.9% $1,428,975
19,123
1.1

98.7% $1,124,888
12,290
1.3

98.9%
1.1

$1,870,879

100.0% $1,448,098

100.0% $1,137,178

100.0%

Year Ended December 31,

2008

2007

2006

77

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

In 2008 and 2007 our Countermine contract exceeded 10% of total revenues from external customers.

Year Ended December 31,

2008

%

2007

%

2006

%

(dollars in thousands)

Revenues from external customers:

Countermine . . . . . . . . . . . . . . . . . . . . . . . .
All other contracts . . . . . . . . . . . . . . . . . . .

$ 309,785
1,561,094

16.6% $ 209,188
83.4% 1,238,910

14.4% $ 102,435
85.6% 1,034,743

9.0%
91.0%

ManTech Consolidated . . . . . . . . . . . . . . .

$1,870,879

100.0% $1,448,098

100.0% $1,137,178

100.0%

Operating Income:

Countermine . . . . . . . . . . . . . . . . . . . . . . . .
All other contracts . . . . . . . . . . . . . . . . . . .

$

8,532
144,826

5.6% $
5,832
94.4% 107,872

5.1% $
94.9%

3,422
87,228

3.8%
96.2%

ManTech Consolidated . . . . . . . . . . . . . . .

$ 153,358

100.0% $ 113,704

100.0% $

90,650

100.0%

Receivables:

Countermine . . . . . . . . . . . . . . . . . . . . . . . .
All other contracts . . . . . . . . . . . . . . . . . . .

$

31,801
375,447

7.8% $
22,540
92.2% 314,927

6.7% $
16,962
93.3% 219,483

7.2%
92.8%

ManTech Consolidated . . . . . . . . . . . . . . .

$ 407,248

100.0% $ 337,467

100.0% $ 236,445

100.0%

Disclosure items required under SFAS 131, Disclosures about Segments of an Enterprise and Related
Information, including interest revenue, interest expense, depreciation and amortization, costs for stock-based
compensation programs, certain unallowable costs as determined under Federal Acquisition Regulations, and
expenditures for segment assets are not applicable as we review those items on a consolidated basis.

14. Investments

GSE Systems, Inc.—On October 21, 2003, we sold all of our equity interests in GSE Systems, Inc. (GSE),
and a $0.7 million note receivable from GSE, to GP Strategies Corporation (GP Strategies) in exchange for a
note with a principal amount of $5.3 million, which was due in October 2008. The note from GP Strategies bore
interest at 5% per annum and was payable quarterly in arrears. In May 2008, GP Strategies repaid the principal
amount of the note receivable, less an amount deducted for early payment, plus all accrued interest through the
date of repayment for a total payment amount of $5.2 million.

15. Discontinued Operations

In 2005, we reached a final corporate determination to exit the personnel security investigation services
business and discontinue operations at our MSM subsidiary. We reached the determination to sell our MSM
subsidiary after we concluded that the MSM business no longer furthered our long-term strategic objectives.

On February 23, 2007, we sold MSM to MSM Security Services Holdings, LLC for $3.0 million in cash.
The sale resulted in a pre-tax gain of $0.6 million recorded in the first quarter of 2007. MSM Security Services
Holdings LLC is solely owned by George J. Pedersen, our Chairman and CEO. Mr. Pedersen presented an offer
to our Board of Directors to purchase our MSM subsidiary. Mr. Pedersen’s offer exceeded the value of any other
definitive offer extended to the Company. The transaction was approved by our independent directors after
receiving unanimous recommendation for approval of the transaction from a special committee of the Board of
Directors, comprised solely of independent directors. The special committee had retained the services of
independent legal counsel and independent financial advisors to advise the committee and assist it in connection
with its duties.

78

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Our consolidated financial statements and related note disclosures reflect the MSM subsidiary as long-lived
assets to be disposed of by sale for all periods presented in accordance with SFAS 144, Accounting for the
Impairment or Disposal of Long-Lived Assets. As such, MSM was classified as held for sale in our consolidated
balance sheets and discontinued operations, net of applicable income taxes in our consolidated statements of
income.

The following discloses the results of the discontinued operations of MSM for the years ended

December 31, 2007 and 2006 (in thousands):

Year Ended December 31,

2007

2006

Revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,829
$ (749)
$ (458)

$14,367
$ (7,530)
$ (4,895)

The following is a summary of the assets and liabilities held for sale related to MSM at December 31, 2006

(in thousands):

Receivables, net
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property and equipment

Total Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accounts payable and accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued salaries and related expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Billings in excess of revenue earned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,
2006

$2,674
70
629

$3,373

$ 724
369
670
52

$1,815

16. Gain on Disposal of Operations

On October 31, 2006, we sold assets related to our NetWitness® operation to the NetWitness Acquisition
Corporation, an unrelated third party, for $2.0 million in cash and an equity stake in the new company of less
than 5%. The sale of NetWitness® included $1.0 million in goodwill and a fully amortized intangible asset with a
cost basis of $0.4 million. We recorded a pre-tax gain of approximately $1.0 million on the transaction

17. Fair Value Measurements

In September 2006, the FASB issued SFAS 157, Fair Value Measurements, which defines fair value,
establishes a framework for measuring fair value and expands disclosures about fair value measurements. SFAS
157 applies to other accounting pronouncements that require or permit fair value measurements, but does not
require any new fair value measurements.

SFAS 157 defines fair value as the price that would be received to sell an asset or paid to transfer a liability
(exit price) in an orderly transaction between market participants at the measurement date. The principal market,
as prescribed by SFAS 157, is the market in which the reporting entity would sell the asset or transfer the liability
with the greatest volume and level of activity for the asset or liability. If there is no principal market, the most

79

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

advantageous market is used. This is the market in which the reporting entity would sell the asset or transfer the
liability with the price that maximizes the amount that would be received for the asset or minimizes the amount
that would be paid to transfer the liability. SFAS 157 clarifies that fair value should be based on assumptions
market participants would make in pricing the asset or liability. Where available, fair value is based on
observable quoted market prices or derived from observable market data. Where observable prices or inputs are
not available, valuation models are used (e.g. Black-Scholes-Merton or a binomial model).

Effective January 1, 2008, financial and non-financial assets and liabilities recorded at fair value on a
recurring basis on our consolidated balance sheet were categorized based on the priority of the inputs used in the
valuation technique to measure fair value. SFAS 157 established a three level fair value hierarchy to classify the
inputs used in measuring fair value as follows:

Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities available at
the measurement date.

Level 2—Inputs are unadjusted quoted prices for similar assets and liabilities in active markets, quoted
prices for identical or similar assets and liabilities in markets that are not active, inputs other than quoted
prices that are observable and inputs derived from or corroborated by observable market data.

Level 3—Inputs are unobservable inputs, which reflect the reporting entity’s own assumptions on what
assumptions the market participants would use in pricing the asset or liability based on the best available
information.

As of December 31, 2008, our financial assets measured at fair value consisted of mutual fund investments.
All assets are held in a rabbi trust for the benefit of the participants. Our financial assets are all valued based on
observable quoted market prices.

The following table summarizes the financial assets measured at fair value on a recurring basis as of

December 31, 2008 and the level they fall within the fair value hierarchy (in thousands):

At December 31, 2008 Fair Value Measurements Using

Quoted Prices
in Active Markets
for Identical Assets
(Level One)

Significant Other
Observable
Inputs
(Level Two)

Significant
Unobservable
Inputs
(Level Three)

Total

Assets:
Employee deferred compensation plan assets . . . . . . . .

$241

$—

$—

$241

At December 31, 2008, the liability related to the Employee Deferred Compensation Plan assets listed above

totaled approximately $0.2 million.

On February 12, 2008, the FASB issued FSP No. 157-2, Effective Date of FASB Statement No. 157, which
delays the effective date of SFAS 157 for nonfinancial assets and liabilities to fiscal years beginning after
November 15, 2008, although early adoption is permitted. We do not expect the adoption of FSP 157-2 will have
a material impact on our consolidated financial statements.

We also maintain an Employee Supplemental Saving Plan, which holds investments in the form of variable
universal life insurance policies. These assets are reported at their cash surrender value, in accordance with
FASB Technical Bulletin 85-4, Accounting for Purchases of Life Insurance. The cash surrender value is
considered to be the net realizable value, which does not equal fair value even though the amounts at times may
be close to fair value.

80

MANTECH INTERNATIONAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

18. Quarterly Financial Data (Unaudited)

The following tables set forth selected unaudited quarterly financial data. The quarterly financial data
reflects, in the opinion of the Company, all normal and recurring adjustments necessary to present fairly the
results of operations for such periods. Results of any one or more quarters are not necessarily indicative of annual
results or continuing trends.

2008 Quarters Ended

(in thousands, except per share data)

March 31,

June 30,

September 30, December 31,

Revenues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative expenses . . . . . . . . . . . . . . . . . . . . . . . . . .

$425,072
355,718
34,800

$464,970
391,364
36,496

$486,128
407,973
37,831

$494,709
410,143
43,196

Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other (expense) income, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before provision for income taxes . . . . . . . . . . . . . . . . . . . . . .

34,554
(1,642)
211
(120)

33,003

37,110
(969)
131
(12)

36,260

40,324
(962)
369
(223)

39,508

41,370
(405)
101
122

41,188

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 19,933

$ 21,896

$ 23,864

$ 24,599

Basic net income per share—Class A common stock . . . . . . . . . . . . .

$

0.58

$

0.63

Weighted average shares outstanding—Class A . . . . . . . . . . . . . . . . .

20,319

20,835

Basic net income per share—Class B common stock . . . . . . . . . . . . .

$

0.58

$

0.63

Weighted average shares outstanding—Class B . . . . . . . . . . . . . . . . .

14,238

14,033

Diluted net income per share—Class A common stock . . . . . . . . . . . .

$

0.57

$

0.62

Weighted average shares outstanding—Class A . . . . . . . . . . . . . . . . .

20,782

21,298

Diluted net income per share—Class B common stock . . . . . . . . . . . .

$

0.57

$

0.62

$

$

$

$

0.68

21,297

0.68

13,958

0.67

21,755

0.67

Weighted average shares outstanding—Class B . . . . . . . . . . . . . . . . .

14,238

14,033

13,958

$

$

$

$

0.69

21,470

0.69

13,958

0.69

21,821

0.69

13,958

2007 Quarters Ended

(in thousands, except per share data)

March 31,

June 30,

September 30, December 31,

Revenues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative expenses . . . . . . . . . . . . . . . . . . . . . . . . . .

$294,285
246,903
26,019

$348,700
292,253
30,968

$383,359
321,133
31,804

Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest income (expense), net
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income (expense), net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before provision for income taxes . . . . . . . . . . . . . . . . . . . . . .

21,363
327
12

21,702

25,479
(910)
334

24,903

30,422
(1,734)
(84)

28,604

$421,754
353,861
31,453

36,440
(1,525)
1

34,916

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 13,248

$ 15,104

$ 17,475

$ 21,380

Basic net income per share—Class A common stock . . . . . . . . . . . . .

$

0.39

$

0.44

Weighted average shares outstanding—Class A . . . . . . . . . . . . . . . . .

19,306

19,575

Basic net income per share—Class B common stock . . . . . . . . . . . . .

$

0.39

$

0.44

Weighted average shares outstanding—Class B . . . . . . . . . . . . . . . . .

14,570

14,428

Diluted net income per share—Class A common stock . . . . . . . . . . . .

$

0.39

$

0.44

Weighted average shares outstanding—Class A . . . . . . . . . . . . . . . . .

19,771

19,965

Diluted net income per share—Class B common stock . . . . . . . . . . . .

$

0.39

$

0.44

$

$

$

$

0.51

19,779

0.51

14,382

0.51

20,181

0.51

Weighted average shares outstanding—Class B . . . . . . . . . . . . . . . . .

14,570

14,428

14,382

$

$

$

$

0.62

20,064

0.62

14,346

0.61

20,522

0.61

14,346

81

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

The Company has had no disagreements with its auditors on accounting principles, practices or financial

statement disclosure during and through the date of the financial statements included in this Report.

Item 9A. Controls and Procedures

We performed an assessment as of December 31, 2008 of the effectiveness of the design and operation of
our disclosure controls and procedures and our internal control over financial reporting. This assessment was
done under the supervision and with the participation of management, including our principal executive officer
and principal financial officer. Included as Exhibits 31.1 and 31.2 to this Annual Report on Form 10-K are forms
of “Certification” of our principal executive officer (our Chairman of the Board and Chief Executive Officer) and
our principal financial officer (our Chief Financial Officer). The forms of Certification are required in accordance
with Section 302 of the Sarbanes-Oxley Act of 2002. This section of the Annual Report on Form 10-K that you
are currently reading is the information concerning the assessment referred to in the Section 302 certifications
and required by the rules and regulations of the SEC. You should read this information in conjunction with the
Section 302 certifications for a more complete understanding of the topics presented.

Disclosure Controls and Procedures and Internal Control over Financial Reporting. Management is
responsible for establishing and maintaining adequate disclosure controls and procedures and internal control
over financial reporting. Disclosure controls and procedures are designed to provide reasonable assurance that
information required to be disclosed in our reports filed or submitted under the Exchange Act, such as this
Annual Report on Form 10-K, is accurately recorded, processed, summarized and reported within the time
periods specified in the SEC’s rules and forms. Disclosure controls and procedures are also designed to provide
reasonable assurance that such information is accumulated and communicated to our management, including our
principal executive officer and our principal financial officer, as appropriate to allow timely decisions regarding
required disclosure.

Internal control over financial reporting is a process designed by, or under the supervision of our principal
executive officer and our principal financial officer, and effected by our Board of Directors, management and
to provide reasonable assurance regarding the reliability of financial reporting and the
other personnel,
preparation of financial statements for external purposes in accordance with GAAP and includes those policies
and procedures that:

•

•

•

pertain to the maintenance of records that in reasonable detail accurately and fairly reflect
transactions and dispositions of our assets;

the

provide reasonable assurance that transactions are recorded as necessary to permit preparation of
financial statements in accordance with GAAP and that our receipts and expenditures are being made
only in accordance with authorizations of management or our Board of Directors; and

provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use
or disposition of our assets that could have a material adverse effect on our financial statements.

Limitations on the Effectiveness of Controls. Management, including our principal executive officer and our
principal financial officer, do not expect that our disclosure controls and procedures or our internal control over
financial reporting will prevent all errors and all fraud. A control system, no matter how well conceived and
operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met.
Further, the design of a control system must reflect the fact that there are resource constraints and the benefits of
controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no
assessment of controls can provide absolute assurance that all control issues and instances of fraud, if any, within
the Company have been detected. These inherent limitations include the realities that judgments in decision-
making can be faulty and that breakdowns can occur because of simple error or mistake. Additionally, controls
can be circumvented by the individual acts of some persons, by collusion of two or more people, or by
management’s override of the control. The design of any system of controls also is based in part upon certain

82

assumptions about the likelihood of future events and there can be no assurance that any design will succeed in
achieving its stated goals under all potential future conditions; over time, controls may become inadequate
because of changes in conditions or the degree of compliance with the policies or procedures may deteriorate.
Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may
occur and not be detected.

Scope of the Assessments. The assessment by our principal executive officer and our principal financial
officer of our disclosure controls and procedures and the assessment by our management of our internal control
over financial reporting included a review of procedures and documents and discussions with other employees in
our organization in order to evaluate the adequacy of our internal control system design. In the course of the
evaluation, we sought to identify exposure to unprevented or undetected data errors, control problems or acts of
fraud and to confirm that appropriate corrective action, including process improvements, were being undertaken.
The assessment also included testing of properly designed controls to verify their effective performance. Our
management used the criteria issued by the Committee of Sponsoring Organizations of the Treadway
Commission in Internal Control—Integrated Framework to assess the effectiveness of our internal control over
financial reporting.

We assess our disclosure controls and procedures and our internal control over financial reporting on an
ongoing basis so that the conclusions concerning controls effectiveness can be reported in our Quarterly Reports
on Form 10-Q and Annual Reports on Form 10-K. We consider the results of these assessment activities as we
monitor our disclosure controls and procedures and our internal control over financial reporting. Our intent is to
ensure that disclosure controls and procedures and internal control over financial reporting will be maintained
and updated as conditions warrant. Among other matters, we sought in our assessment to determine whether
there were any “material weaknesses” in our internal control over financial reporting, or whether we had
identified any acts of fraud involving senior management, management or other personnel who have a significant
role in our internal control over financial reporting. This information was important both for the assessment
generally and because the Section 302 certifications require that our principal executive officer and our principal
financial officer disclose that information, along with any “significant deficiencies,” to the Audit Committee of
our Board of Directors, and to our independent auditors and to report on related matters in this section of the
Annual Report on Form 10-K.

Assessment of Effectiveness of Disclosure Controls and Procedures. Based upon the assessments, our
principal executive officer and our principal financial officer have concluded that as of December 31, 2008 our
disclosure controls and procedures were effective.

Management’s Report on Internal Control Over Financial Reporting. Management is responsible for
establishing and maintaining adequate control over financial reporting. Management used the criteria issued by
the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control—Integrated
Framework to assess the effectiveness of our internal control over financial reporting. Based upon the
assessments, our management has concluded that as of December 31, 2008 our internal control over financial
reporting was effective. Our independent registered public accounting firm issued an attestation report
concerning our internal control over financial reporting, which appears further in this Annual Report.

Changes in Internal Control over Financial Reporting. During the three months ended December 31, 2008,
there were no changes in our internal control over financial reporting that have materially affected, or are
reasonably likely to materially affect, our internal control for financial reporting.

Item 9B. Other Information

None.

83

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON INTERNAL
CONTROL OVER FINANCIAL REPORTING

To the Board of Directors and Stockholders of
ManTech International Corporation
Fairfax, Virginia

We have audited the internal control over financial reporting of ManTech International Corporation and
subsidiaries (the “Company”) as of December 31, 2008, based on criteria established in Internal Control—
Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. The
Company’s management is responsible for maintaining effective internal control over financial reporting and for
its assessment of the effectiveness of internal control over financial reporting, included in the accompanying
Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion
on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board
(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether effective internal control over financial reporting was maintained in all material respects. Our audit
included obtaining an understanding of internal control over financial reporting, assessing the risk that a material
weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the
assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe
that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the
company’s principal executive and principal financial officers, or persons performing similar functions, and
effected by the company’s board of directors, management, and other personnel 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 (1) pertain to the maintenance of records that, in reasonable detail,
accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) 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 (3) 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.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or
improper management override of controls, material misstatements due to error or fraud may not be prevented or
detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial
reporting to future periods are subject to the risk that the controls may become inadequate because of changes in
conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial
reporting as of December 31, 2008, based on the criteria established in Internal Control—Integrated Framework
issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board
(United States), the consolidated financial statements and financial statement schedule as of and for the year
ended December 31, 2008 of the Company and our report dated February 27, 2009 expressed an unqualified
opinion on those financial statements and financial statement schedule and included an explanatory paragraph
regarding the Company’s adoption of a new standard for accounting for uncertain income tax positions.

/s/ DELOITTE & TOUCHE LLP

McLean, Virginia
February 27, 2009

84

PART III

Item 10. Directors and Executive Officers of the Registrant and Corporate Governance

The information concerning our directors and executive officers required by Item 401 of Regulation S-K is
included under the captions “Election of Directors” and “Executive Officers,” respectively, in our definitive
Proxy Statement to be filed with the Securities and Exchange Commission (SEC) in connection with our 2009
Annual Meeting of Stockholders (the “2009 Proxy Statement”), and that information is incorporated by reference
in this Annual Report on Form 10-K.

The information required by Item 405 of Regulation S-K concerning compliance with Section 16(a) of the
Exchange Act is included under the caption “Section 16(a) Beneficial Ownership Reporting Compliance” in our
2009 Proxy Statement, and that information is incorporated by reference in this Annual Report on Form 10-K.

We have adopted Standards of Ethics and Business Conduct, which sets forth the policies comprising our
code of conduct. These policies satisfy the SEC’s requirements (including Item 406 of Regulation S-K) for a
“code of ethics” applicable to our principal executive officer, principal financial officer, principal accounting
officer, controller or persons performing similar functions, as well as Nasdaq’s requirements for a code of
conduct applicable to all directors, officers and employees. Among other principles, our Standards of Ethics and
Business Conduct includes guidelines relating to the ethical handling of actual or potential conflicts of interest,
compliance with laws, accurate financial reporting and procedures for promoting compliance with (and reporting
violations of) these standards. A copy of our Standards of Ethics and Business Conduct is available on the
investor relations section of our website: www.mantech.com. We are required to disclose any amendment to, or
waiver from, a provision of our code of ethics that applies to our principal executive officer, principal financial
officer, principal accounting officer, controller and persons performing similar functions. We intend to use our
website as a method of disseminating this disclosure as permitted by applicable SEC rules.

The information required by Item 407(c)(3) of Regulation S-K concerning the procedures by which our
stockholders may recommend nominees to our Board of Directors is included under the caption “Director
Nominations” in our 2009 Proxy Statement and that information is incorporated by reference in this Annual
Report on Form 10-K.

The information required by Item 407(d)(4) of Regulation S-K concerning the Audit Committee is included
under the caption “Report of the Audit Committee” in our 2009 Proxy Statement and that information is
incorporated by reference in this Annual Report on Form 10-K.

The information required by Item 407(d)(5) of Regulation S-K concerning the designation of an audit
committee financial expert is included under the caption “Report of the Audit Committee” in our 2009 Proxy
Statement and that information is incorporated by reference in this Annual Report on Form 10-K.

Item 11. Executive Compensation

The information required by this Item 11 is included under the captions “Compensation Committee Report”
and “Compensation Discussion and Analysis” and the related text and tables in our 2009 Proxy Statement and
that information (except for the information required by Item 402(k) and Item 402(l) of Regulation S-K) is
incorporated by reference in this Annual Report on Form 10-K.

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

The information required by this Item 12 is included under the captions “Ownership by Our Directors and
Executive Officers,” “Ownership by Holders of More Than 5% of Our Class A Common Stock” and “Securities
Authorized for Issuance under Equity Compensation Plans” in our 2009 Proxy Statement and that information is
incorporated by reference in this Annual Report on Form 10-K.

85

Item 13. Certain Relationships and Related Transactions and Director Independence

The information required by this Item 13 is included under the caption “Certain Relationships and Related
Transactions” and “Independence of Directors and Audit Committee Financial Experts” in our 2009 Proxy
Statement and that information is incorporated by reference in this Annual Report on Form 10-K.

Item 14. Principal Accounting Fees and Services

The information required by this Item 14 is included under the captions “Ratification of Appointment of
Independent Auditors—Fees Paid to Deloitte & Touche LLP” and “—Policy Regarding Audit Committee
Pre-Approval of Audit and Permitted Non-audit Services” in our 2009 Proxy Statement and that information is
incorporated by reference in this Annual Report on Form 10-K.

86

Item 15. Exhibits and Financial Statement Schedules

(a) The following documents are filed as a part of this Annual Report on Form 10-K:

PART IV

(1) All financial statements:

DESCRIPTION

Report of Independent Registered Public Accounting Firm on the Consolidated

Financial Statements and Financial Statement Schedule

Consolidated Balance Sheets as of December 31, 2008 and 2007
Consolidated Statements of Income for the years ended December 31, 2008, 2007

and 2006

Consolidated Statements of Comprehensive Income for the years ended

December 31, 2008, 2007 and 2006

Consolidated Statements of Changes in Stockholders’ Equity for the years ended

December 31, 2008, 2007 and 2006

Consolidated Statements of Cash Flows for the years ended December 31, 2008,

2007 and 2006

Notes to Consolidated Financial Statements

(2) Financial statement schedule:

46
47

48

49

50

51-52
53-81

91

SCHEDULE
NO.

Schedule II

Valuation and Qualifying Accounts for the years ended December 31, 2008,
2007 and 2006

DESCRIPTION

(3) Exhibits required by Item 601 of Regulation S-K (each management contract or compensatory plan
or arrangement required to be filed as an exhibit to this annual report pursuant to Item 15(b) of this annual
report is identified in the Exhibit list below):

Exhibit
Number

3.1

3.2

4.1

4.2

Document Description

Second Amended and Restated Certificate of Incorporation of the registrant as filed with the
Secretary of State of the State of Delaware on January 30, 2002 (incorporated herein by reference
from registrant’s Registration Statement on Form S-1 (File No. 333-73946), as filed with the
Commission on November 23, 2002, as amended).

Second Amended and Restated Bylaws of the registrant (incorporated herein by reference from
registrant’s Annual Report on Form 10-K for the year ended December 31, 2003).

Form of Common Stock Certificate (incorporated herein by reference from registrant’s Registration
Statement on Form S-1 (File No. 333-73946), as filed with the Commission on November 23, 2002,
as amended).

Credit Agreement with Bank of America, N.A. (as Administrative Agent and L/C Issuer), Citizens
Bank of Pennsylvania (as Syndication Agent), PNC Bank, National Association and Branch Banking
and Trust Company (each as a Documentation Agent) and the other lender parties thereto, dated
April 30, 2007 (incorporated herein by reference from registrant’s Current Report on Form 8-K filed
with the SEC on May 1, 2007).

10.1*

Retention Agreement, effective as of January 1, 2002, between George J. Pedersen and the registrant
(incorporated herein by reference from registrant’s Registration Statement on Form S-1 (File No.
333-73946), as filed with the Commission on November 23, 2001, as amended).

87

Exhibit
Number

10.2*

10.3*

10.4*

10.5*

10.6*

10.7*

10.8*

10.9*

21.1‡

23.1‡

24.1

31.1‡

31.2‡

32 ‡

Document Description

Management Incentive Plan of ManTech International Corporation, 2006 Restatement (incorporated
herein by reference from registrant’s Registration Statement on Form S-8 (File No. 333-137129), as
filed with the Commission on September 6, 2006).

Form of Term Sheet
Incentive Plan
Non-Qualified Stock Option (incorporated herein by reference from registrant’s Current Report on
Form 8-K, as filed with the SEC on March 13, 2006).

for ManTech International Corporation Management

Standard Terms and Conditions for Options Granted under Management Incentive Plan (incorporated
herein by reference from registrant’s Current Report on Form 8-K, as filed with the SEC on March
13, 2006).

ManTech International Corporation Supplemental Executive Retirement Plan (f/b/o George J.
Pedersen), amended and restated effective January 1, 2005 (incorporated herein by reference from
registrant’s Current Report on Form 8-K, as filed with the SEC on March 13, 2006).

Form of Confidentiality, Non-Competition and Non-Solicitation Agreement, effective as of February
7, 2002, between specified executive officers and the registrant (incorporated herein by reference
from registrant’s Registration Statement on Form S-1 (File No. 333-73946), as filed with the
Commission on November 23, 2001, as amended).

ManTech International Corporation 2008 Incentive Compensation Plan, adopted on March 10, 2008
to help attract, retain and motivate participants including our CEO, President, CFO and the presidents
of our principal business units, as well as certain other key members of senior management identified
by our CEO and our President (incorporated herein by reference from registrant’s Current Report on
Form 8-K filed with the SEC on March 13, 2008).

Form of Term Sheet for 2008 Incentive Compensation Plan – Corporate Executive (incorporated
herein by reference from registrant’s Current Report on Form 8-K filed with the SEC on March 13,
2008).

Form of Term Sheet for 2008 Incentive Compensation Plan – Subsidiary and Division President
(incorporated herein by reference from registrant’s Current Report on Form 8-K filed with the SEC
on March 13, 2008).

Subsidiaries of the Company.

Independent Registered Public Accounting Firm Consent.

Power of Attorney (included on signature page).

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act
of 1934, as amended.

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of
1934, as amended.

Certification of Chief Executive Officer and Chief Financial Officer pursuant to Rule 13a-14(b) of
the Securities Exchange Act of 1934, as amended.

‡

Filed herewith.

* Management contract or compensatory plan or arrangement required to be filed as an Exhibit to this report

pursuant to Item 14(c).

88

SIGNATURES

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.

MANTECH INTERNATIONAL CORPORATION

By:

Name:
Title:

Date:

/s/ GEORGE J. PEDERSEN

George J. Pedersen
Chairman of the Board of Directors
and Chief Executive Officer
(Principal Executive Officer)
February 27, 2009

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.
Each person whose signature appears below hereby constitutes and appoints each of George J. Pedersen
and Kevin M. Phillips as his attorney-in-fact and agent, with full power of substitution and resubstitution
for him in any and all capacities, to sign any or all amendments to this Report and to file same, with
exhibits thereto and other documents in connection therewith, granting unto such attorney-in-fact and
agent full power and authority to do and perform each and every act and thing requisite and necessary in
connection with such matters and hereby ratifying and confirming all that such attorney-in-fact and agent
or his substitutes may do or cause to be done by virtue hereof.

Name and Signature

Title

Date

/s/ GEORGE J. PEDERSEN

George J. Pedersen

/s/ KEVIN M. PHILLIPS

Kevin M. Phillips

Chairman of the Board of Directors
and Chief Executive Officer
(Principal Executive Officer)

Executive VP and Chief Financial
Officer (Principal Financial
Officer)

February 27, 2009

February 27, 2009

/s/

JOHN J. FITZGERALD
John J. Fitzgerald

Senior VP Finance and Controller
(Principal Accounting Officer)

February 27, 2009

/s/ RICHARD L. ARMITAGE

Director

February 27, 2009

Richard L. Armitage

/s/ MARY K. BUSH

Mary K. Bush

Director

February 27, 2009

/s/ BARRY G. CAMPBELL

Director

February 27, 2009

Barry G. Campbell

/s/ ROBERT A. COLEMAN

Director and President and Chief

February 27, 2009

Robert A. Coleman

Operating Officer

/s/ WALTER R. FATZINGER, JR.

Director

February 27, 2009

Walter R. Fatzinger, Jr.

89

Name and Signature

Title

Date

/s/ DAVID E. JEREMIAH

Director

February 27, 2009

David E. Jeremiah

/s/ RICHARD J. KERR

Richard J. Kerr

Director

February 27, 2009

/s/ KENNETH A. MINIHAN

Director

February 27, 2009

Kenneth A. Minihan

/s/ STEPHEN W. PORTER

Director

February 27, 2009

Stephen W. Porter

90

Valuation and Qualifying Accounts

SCHEDULE II

Activity in the Company’s allowance accounts for the years ended December 31, 2008, 2007 and 2006 was

as follows (in thousands):

Doubtful Accounts

Balance at
Beginning of
Period

Charged to Costs
and Expenses

Deductions Other*

Balance at End of
Period

2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$5,129
$5,518
$6,153

48
(372)
197

(869)
(936)
216

1,210
1,943
1,755

$5,518
$6,153
$8,321

* Other represents doubtful account reserves recorded as part of Net Revenues for estimated customer
disallowances as well as acquisition related reserves. In 2006, we added $25 thousand from the addition of
GRS Solutions, Inc. In 2007, we added $433 thousand from the addition of SRS Technologies and $272
thousand from the addition of McDonald Bradley, Inc. (MBI). In 2008, we added $110 thousand from the
addition of MBI, $467 thousand from the addition of Emerging Technologies Group USA, Inc. and $472
thousand from the addition of EWA Services, Inc.

Deferred Tax Asset Valuation

Balance at
Beginning of
Period

Charged to Costs
and Expenses

Deductions

Other

Balance at End of
Period

2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,352
$1,963
$ —

—
(264)
—

—
611
— (1,699)
—
—

$1,963
$ —
$ —

Other Valuation Accounts **

Balance at
Beginning of
Period

Charged to Costs
and Expenses

Deductions

Other

Balance at End of
Period

2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 550
$ 550
$ —

—
(19)
—

—
(531)
—

—
—
—

$ 550
$ —
$ —

** Other valuation accounts are for inventory.

91

[THIS PAGE INTENTIONALLY LEFT BLANK]

ManTech International Corporation

Corporation Information

Shareholder 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 or disability.

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. 

59 Maiden Lane
New York, NY  10038
Attn: Shareholder Services
800-937-5449 or 718-921-8200
www.amstock.com

Annual Meeting

ManTech’s Annual Meeting will be held on Friday, May 14, 2009, at 11:00 a.m. ET at the Fair Lakes Hyatt, Fairfax, Virginia.  

Class A Common Stock

Stock symbol: MANT
Listed: NASDAQ National Market

Independent Auditors

Deloitte & Touche LLP 
McLean, Virginia

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 annual report contains forward-looking statements that involve substantial risks and uncertainties, many of which are outside of our control.  We believe that these statements are 
within the defi nition of the Private Securities Litigation Reform Act of 1995.  You can often identify these statements by the use of words such as “may,” “will,” “expect,” “intend,” “anticipate,” 
“believe,” “plan,” “seek,” “estimate,” “continue” and other similar words or variations on such words. Additionally, statements concerning future matters or matters that are not historical are 
forward-looking statements.  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 annual report refl ect the good faith judgment of management, such statements can only be based on facts and factors currently known 
by us.  Consequently, forward-looking statements are inherently subject to risks and uncertainties and actual results and outcomes may diff er materially from the results and outcomes 
discussed in or anticipated by the forward-looking statements.  We believe that it is important to communicate our future expectations to our investors.  However, there may be events in 
the future that we are not able to predict accurately or control.  The factors that could cause or contribute to such diff erences include, but are not limited to, those factors discussed in Item 
1A “Risk Factors” in our annual report on Form 10-K, fi led with the SEC on February 27, 2009, and from time to time in our other fi lings with the SEC, including our reports on Form 10-Q 
and Form 8-K.

We urge you not to place undue reliance on these forward-looking statements, which speak only as of the date of this annual report.  We undertake no obligation to revise or update any 
forward-looking statements in order to refl ect any event or circumstance that may arise after the date of this annual report.  

 
Serving our customers all over the world

Celebrating 40 Years 
Supporting National Security