ManTech International Corporation

ManTech's expertise includes systems engineering, systems integration, software development services, 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. 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. ManTech personnel have been the primary managers and/or developers/support leads for Global Hawk, DarkStar, UCAV (USN), UCAV (USAF), UCAR, Canard Rotor Wing, as well as for manned airborne systems such as the U-2 and Guardrail. ManTech has also led support teams in space-based ISR, including Space Based Radar, Baseline NRO imaging systems, Next Imaging System, ground-based Space Surveillance Telescope and other national programs.

For over 40 years, ManTech International Corporation has provided innovative technologies and solutions for mission-critical national security programs for the Intelligence Community; the U.S. departments of Defense, State, Homeland Security, and Justice; the Space Community; National Oceanic and Atmospheric Administration; and other U.S. federal government agencies. ManTech ranks as a Top 100 IT company in the world (BusinessWeek magazine) and is a Top 10 military friendly employer (G.I. Jobs magazine). With approximately 8,700 employees in 300 locations in the U.S and around the globe, ManTech delivers comprehensive systems engineering and integration, cyber security/information assurance, C4ISR, and global logistics and communications.

ManTech Defense Systems Group (DSG), headquartered in Chantilly VA, consists of more than 2,300 professionals, the majority of which hold TS/SCI clearances. DSG has a 40,000 square foot facility which includes a full service warehouse, a TS facility, and a 1,400 square foot SCIF. DSG also has more than 100 CONUS and OCONUS locations. DSG member subsidiaries include ManTech Telecommunications and Information Systems Corporation (MTISC) and ManTech Systems Engineering Corporation (MSEC). ManTech Telecommunications and Information Systems Corporation (MTISC) has over 3,500 dedicated information technology professional personnel; over 600 hold TS/SCI clearances. ManTech Systems Engineering Corporation (MSEC), headquartered in Lexington Park, Maryland, has over 700 people in 15 U.S. and seven overseas locations.

ManTech Information Systems & Technology (MIST), plans, designs, implements, and supports technology solutions.

ManTech Security and Mission and Assurance supports cyber operations, intelligence analysis, mission operations and program security. Cyber security capabilities form a center of excellence that leverages unique technical skills and a state-of-the-art computer forensics lab that helps the U.S. government, Intelligence Community and commercial organization's solve some of their most difficult computer forensics and information security challenges. DDK, acquired in 2009, operates as part of MSMS. DDK, headquartered in Lanham, MD is a rapidly growing provider of cyber security to the DoD, with a particular focus on the Naval Criminal Investigative Service (NCIS). All of DDK's employees have high level clearances.

ManTech SRS provides a variety of C4ISR system engineering and information systems support to government customers. The diverse expertise ranges from award-winning and innovative polymer products used in experimental satellite solar sail propulsion systems, to providing system analysis, modeling and testing of technologies being deployed to identify and detect nuclear and radiological sources which are attempting to enter the U.S.

ManTech acquired ACS Defense, Inc. in 2004. Formerly known as Analytical Systems Engineering Corp. it changed its name to ACS Defense, Inc. in 1999.