ManTech
www.mantech.com
From its beginning in 1968, ManTech International Corporation has consistently delivered innovative information technology and technical services solutions to federal government customers. Today, ManTech has grown to become one of the U.S. government’s leading providers of innovative technologies and solutions for mission-critical national security programs supporting the Department of Defense, the Intelligence Community, the Department of State, the Department of Justice and the Department of Homeland Security. Their expertise covers software development, enterprise security architecture, information assurance, intelligence operations support, network and critical infrastructure protection, information technology, communications integration and engineering support.

Science Applications International Corporation (SAIC)
www.saic.com
Founded in1969, SAIC, a Fortune 500® company, now ranks as the largest employee-owned research and engineering firm in the United States. SAIC and its subsidiaries have more than 43,000 employees with offices in over 150 cities worldwide. SAIC is a key source for leading-edge technologies that will carry our clients into the 21 st century and beyond. They help clients respond faster to opportunities, achieve more from their operations, exceed their mission requirements, and meet the competition head-on.

Lockheed Martin
www.lockheedmartin.com
Lockheed Martin Corporation, an advanced technology company, was formed in March 1995 with the merger of two of the world's premier technology companies, Lockheed Corporation and Martin Marietta Corporation.

Headquartered in Bethesda, Maryland, Lockheed Martin employs about 140,000 people worldwide and is principally engaged in the research, design, development, manufacture and integration of advanced technology systems, products and services.

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Alion Science and Technology
www.alionscience.com
Alion Science and Technology Corporation is an employee-owned technology solutions company delivering technical expertise and operational support to the Department of Defense, civilian government agencies and commercial customers.

Alion was formed in December 2002 when approximately 1600 employees of the IIT Research Institute (IITRI), founded in 1936, purchased substantially all of the assets of IITRI creating a 100% ESOP-owned company. Each Alion employee has a personal stake in ensuring the collective success of the company.