ManTech Awarded $151M Information Technology Support Contract from the Naval Sea Systems Command

ManTech International Corporation (Nasdaq:MANT) announced that it has been awarded a five-year, $151 million task order to provide information technology support to the Naval Sea Systems Command (NAVSEA), SEA 04L3. The performance-based task order was awarded under the NAVSEA Seaport Enhanced contract. ManTech will provide IT support to the Navy’s legacy Ship Maintenance and Logistics Support Information Systems Program to include the development of formal processes in life cycle planning, documentation, program management, program control, testing, training, and deployment. This task order will support the reengineering of NAVSEA IT corporate systems. The Navy will employ common system standards, processes and development methodology, along with shared resources and infrastructure, to improve function and reduce costs. Work will be performed primarily at the Norfolk region with additional work conducted at key locations across the United States. "We are pleased to support the Navy’s goal of increased functional benefits and cost savings through this large scale streamlining and integration effort,” said Robert A. Coleman, President and COO, ManTech International Corporation. "Software development, integration, and process improvement skills are some of our core competencies and we look forward to providing these capabilities to NAVSEA 04L to help them standardize their systems and processes.” The work will be performed by ManTech Systems Engineering Corporation (MSEC), a wholly owned subsidiary of ManTech headquartered in Lexington Park, MD. MSEC is rated as Capability Maturity Model Integration Maturity Level 3 for Software and Systems Engineering. About ManTech International Corporation: Headquartered in Fairfax, Virginia with more than 7,400 professionals, 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 customers. ManTech’s expertise includes systems engineering, systems integration, software development, 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, logistics and supply chain management, and service oriented architectures. The company supports the advanced telecommunications systems that are used in Operation Iraqi Freedom and in other parts of the world; has developed a secure, collaborative communications system for the U.S. Department of Homeland Security; and builds and maintains secure databases that track terrorists. The company operates in the United States and 40 countries. In 2008, BusinessWeek magazine chose ManTech for its 2008 ‘InfoTech 100’ listing representing the best performing tech companies in the world. 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. Additional information on ManTech can be found at www.mantech.com. Forward-Looking Information: Statements and assumptions made in this press release, which do not address historical facts, constitute "forward-looking" statements that ManTech believes to be within the definition in the Private Securities Litigation Reform Act of 1995 and involve risks and uncertainties, many of which are outside of our control. Words such as "may,” "will,” "intends,” "should,” "expects,” "plans,” "projects,” "anticipates,” "believes,” "estimates,” "predicts,” "potential,” "continue,” or "opportunity," or the negative of these terms or words of similar import are intended to identify forward-looking statements. These forward-looking statements are subject to known and unknown risks and uncertainties, which could cause actual results to differ materially from those anticipated, including, without limitation: adverse changes in U.S. government spending priorities; failure to retain existing U.S. government contracts, win new contracts, or win recompetes; adverse results of U.S. government audits of our government contracts; risks associated with complex U.S. government procurement laws and regulations; adverse effect of contract consolidation; risk of contract performance or termination; failure to obtain option awards, task orders or funding under contracts; adverse changes in our mix of contract types; failure to successfully integrate recently acquired companies or businesses into our operations or to realize any accretive or synergistic effects from such acquisitions; failure to identify, execute or effectively integrate future acquisitions; and competition. These and other risk factors are more fully discussed in the section entitled "Risks Factors" in ManTech's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 17, 2008, and, from time to time, in ManTech's other filings with the Securities and Exchange Commission, including among others, its reports on Form 10-Q. The forward-looking statements included in this news release are only made as of the date of this news release and ManTech undertakes no obligation to publicly update any of the forward-looking statements made herein, whether as a result of new information, subsequent events or circumstances, changes in expectations or otherwise.