(Fairfax, Virginia) - ManTech International Corporation (Nasdaq:MANT) recently closed on the acquisition of EWA Services, Inc., a wholly owned subsidiary of Electronic Warfare Associates, Inc. ManTech officials expect the company to generate 2009 revenues of $20 million with solid operating margins.

Terms of the deal were not disclosed. The Company used cash available and borrowings from its senior secured credit facility to finance the acquisition.

Based in Herndon, Virginia, EWA Services is a leading provider of information technology, threat analysis and test and evaluation for several Department of Defense agencies. Founded in 1991, EWA Services is privately held and its largest customers include the Joint Interoperability Test Command, a field activity of the Defense Information Systems Agency, and the Big Crow Program Office at Kirtland Air Force Base.

Based in Fairfax, Virginia, with more than 7,700 professionals, ManTech is a leading provider of innovative technologies and solutions for mission-critical national security programs for the Intelligence Community In 2007, ManTech was named one of BusinessWeek.com’s fastest growing tech companies; to Business 2.0 magazine’s 100 Fastest Growing Technology Companies list for the second year in a row; to the Deloitte & Touche list of the 50 fastest growing technology companies in Virginia; and a GI Jobs magazine Top Ten Military Friendly Employer. For more information on ManTech visit at http://www.mantech.com.

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