2006 Top 100
40: SI International Inc.
| Top 100 Revenue: | $276,345,731 |
| Defense Revenue: | $146,463,237 |
| Civilian Revenue: | $129,882,494 |
| 2005 Revenue: | $397.9 million |
| 2005 Earnings: | $16.9 million |
| 2004 Revenue: | $262.3 million |
| 2004 Earnings: | $10.9 million |
| Number of employees: | 4,000 |
| Headquarters: | Reston, Va. |
| Website: | www.si-intl.com |
| Leadership: | S. Bradford Antle, president and COO same as president and CEO |
| Ticker: | SINT |
| Lines of business: | Software development, systems engineering, systems consulting, eSolutions, mission critical outsourcing, information security, learning solutions and network solutions |
| Major customers: | Army, Federal Bureau of Investigation and State Department |
| Major contracts/projects: | SI International is one of several subcontractors chosen by Lockheed Martin on the $305 million Sentinel information technology contract by the FBI. The companies on the contract will use commercial off-the-shelf technologies to produce an integrated system for the FBI''s paper-based criminal investigation records system. |