ManTech International Corporation Named a aBest Employer for Veteransa by Military Times Edge Magazine

FAIRFAX, Va.--([ BUSINESS WIRE ])--ManTech International Corporation (NASDAQ:MANT) ([ www.mantech.com ]), a leading provider of technical and engineering services and solutions vital to the nation's interest and security, announced today that the company has been named to Military Times Edgea�s 2010 a[ Best Employers for Vets ]a list. ManTech ranked seventh on the 50-company list and was the top-ranking government contractor on this yeara�s list.

"Our military veterans are essential contributors to the security of our nation and our defense/intelligence industry"

Companies from the Fortune 1000, Defense News 100 and Federal Timesa� General Services Administration 250 lists were eligible for consideration. Factors that determined rankings included recruiting practices, training and mentoring, reserve policies and corporate culture.

aOur military veterans are essential contributors to the security of our nation and our defense/intelligence industry,a said ManTech President and CEO George J. Pedersen. aManTecha�s military veteran employees enable us to better support our customersa� needs through the technical and leadership skills they learn as members of our nationa�s armed forces. They share our dedication to our customersa� missions, and we support them in developing their skills and building careers that further support our nationa�s security and prosperity.a

ManTech actively recruits military veterans to fill a number of positions, particularly those in engineering, software / IT and technical support related to cyber systems, electronic systems, logistics, satellite communications and other key technologies. Approximately 40 percent of the employees ManTech added in 2009 were veterans, many of whom continue to serve in the U.S. National Guard and Reserve during their tenure with the company. Last year, ManTecha�s support of military veterans garnered recognition that included the Patriot Award for extraordinary support to the U.S. National Guard and Reserves and the Most Valuable Employer for the Military from CivilianJobs.com. Also in 2009, ManTech was named a aTop Ten Military Friendly Employera by G.I. Jobs for the fourth consecutive year.

About ManTech International Corporation

Headquartered in Fairfax, Va., with approximately 9,100 professionals, 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; the National Oceanic and Atmospheric Administration; and other U.S. federal government customers. ManTech's expertise includes systems engineering, systems integration, enterprise architecture, cyber security, information assurance, intelligence operations and analysis support, network and critical infrastructure protection, information operations and information warfare support, information technology, communications integration, global logistics and supply chain management, and service-oriented architectures. Additional information on ManTech can be found at [ www.mantech.com ].

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ManTech International Corporation Named a aBest Employer for Veteransa by Military Times Edge Magazine