George Pedersen

ManTech International Corp. engages in the provision of information technology and technical services solutions. It also offers cyber security, software and systems development, enterprise information technology, multi-disciplined intelligence, program protection and mission assurance, system engineering, test and evaluation, command, control, communications, computers, intelligence, training, supply chain, and management consulting. The company was founded by George J. Pedersen in 1968 and is headquartered in Herndon, VA.

Welkin Associates Ltd. provides advisory, assistance services, system engineering and technical assistance supports. The company was founded by Carl Monk in 1988 and is headquartered in Chantilly, VA.

MSM Security Services LLC provides investigative services, risk analysis and screening support for business and employment requirements. Its services include full scope background investigative services; credit, law, criminal and civil record checks; employment, reference and security verification, security compliance and enterprise process solutions and client support and training. The company was incorporated on December 12, 2006 and is headquartered in Chevy Chase, MD.

National Defense Industrial Association engages in the defense and national security education. It offers courses such as configuration and data management certification program, defense systems acquisitions management, mastering business development, and certified modeling and simulation professional certification program. The company was founded in 1919 and is headquartered in Arlington, VI.

ManTech Information Systems & Technology Corp. designed and implemented information systems. The company was headquartered in Chantilly, VA.

ManTech Advanced Systems International, Inc. designs and develops information technology, communications systems and solutions. The company is headquartered in Fairfax, VA.