2011 Top 100
22: ManTech International Corp.
| Top 100 Revenue: | $1,467,181,000 |
| Defense Revenue: | $1,167,928,000 |
| Civilian Revenue: | $299,253,000 |
| 2010 Revenue: | $2.6 billion |
| 2010 Earnings: | $125.1 million |
| 2009 Revenue: | $2 billion |
| 2009 Earnings: | $111.8 million |
| Number of employees: | 100,000 |
| Headquarters: | Fairfax, Va. |
| Website: | www.mantech.com |
| Leadership: | George J. Pedersen, chairman, CEO and co-founder |
| Ticker: | MANT |
| Lines of business: | Systems engineering and integration, technology and software development, enterprise security architecture, intelligence operations support, critical infrastructure protection and computer forensics |
| Major customers: | Defense Department, State Department, Homeland Security Department, Justice Department, NASA, Army and Defense Advanced Research Projects Agency |
| Major contracts/projects: | N/A |