2007 Top 100

42: SI International Inc.
Top 100 Revenue: $359,808,681
Defense Revenue: $173,208,769
Civilian Revenue: $186,599,912
2006 Revenue: $462 million
2006 Earnings: $20.2 million
2005 Revenue: $397.9 million
2005 Earnings: $16.9 million
Number of employees: 4300
Headquarters: Reston, Va.
Website: www.si-intl.com
Leadership: S. Bradford Antle, president and CEO
Ticker: SINT
Lines of business: Federal IT modernization, defense transformation, homeland defense and mission-critical outsourcing
Major customers: Defense Department, Agriculture Department, Commerce Department, Energy Department, Health and Human Services Department, Homeland Security Department, Housing and Urban Development Department, Interior Department, Justice Department, Labor Department, State Department, Transportation Department, Treasury Department, Veterans Affairs Department and General Services Administration
Major contracts/projects: SI International won the Pre-Grant Publication Classification Services contract by the Patent and Trademark Office. The $138 million contract requires the company to support the office''s pre-grant publication classification services in support of its mission of examining, granting and disseminating patents and trademarks. The company also is part of the team hired by the Army on the Strategic Services Sourcing contract for engineering, logistics and business operations services. The contract is worth $19.3 million.