2008 Top 100

44: SI International Inc.
Top 100 Revenue: $414,452,684
Defense Revenue: $189,534,426
Civilian Revenue: $224,918,258
2007 Revenue: $510.8 million
2007 Earnings: $19.3 million
2006 Revenue: $462 million
2006 Earnings: $20.2 million
Number of employees: 4,500
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, National Security Agency, 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: The National Security Agency awarded SI International three Enterprise Program Management II contracts for enterprise-wide systems engineering and program management for modernization of the NSA. The contracts are valued at $131 million.