2026 Top 100
38: FCN INC
| Top 100 Revenue: | $1,013,532,000 |
| Defense Revenue: | $282,988,000 |
| Civilian Revenue: | $730,544,000 |
| 2025 Revenue: | N/A |
| 2025 Earnings: | N/A |
| 2024 Revenue: | N/A |
| 2024 Earnings: | N/A |
| Number of employees: | N/A |
| Headquarters: | Rockville, Maryland |
| Website: | https://fcnit.com/ |
| Leadership: | Anne Sullivan, CEO; Dennis Sullivan, COO; George Sullivan, EVP |
| Ticker: | Privately held |
| Lines of business: | Infrastructure hardware and software solutions |
| Major customers: | IRS, Air Force, Bureau of Fiscal Service, Navy, FBI, SEC, Defense, DHS |
| Major contracts/projects: | https://fcnit.com/contracts/ |