| 1 | BATTELLE ENERGY ALLIANCE, LLC | $25,752,009,752 | 1 | $25,752,009,752 | Nov 09, 2004 | Department of Energy |
| 2 | OAK RIDGE ASSOCIATED UNIVERSITIES, INCORPOR… | $3,061,819,994 | 1 | $3,061,819,994 | Mar 10, 2016 | Department of Energy |
| 3 | HII MISSION TECHNOLOGIES CORP | $1,172,284,685 | 2 | $586,142,342 | Sep 16, 2024 | General Services Administ… |
| 4 | PTSI MANAGED SERVICES INC | $571,600,406 | 1 | $571,600,406 | Mar 30, 2023 | Department of Transportat… |
| 5 | BLUESTAQ LLC | $515,265,631 | 1 | $515,265,631 | Aug 01, 2019 | General Services Administ… |
| 6 | CACI, INC. - FEDERAL | $224,428,399 | 3 | $74,809,466 | Sep 23, 2025 | General Services Administ… |
| 7 | SAFEGUARD SERVICES LLC | $219,079,652 | 1 | $219,079,652 | Nov 01, 2016 | Department of Health and … |
| 8 | BOOZ ALLEN HAMILTON INC | $165,112,502 | 4 | $41,278,126 | Sep 23, 2025 | Department of Health and … |
| 9 | THE MITRE CORPORATION | $123,594,351 | 18 | $6,866,353 | Dec 03, 2025 | Department of Justice |
| 10 | E3HEALTH SOLUTIONS, LLC | $100,701,959 | 1 | $100,701,959 | Jun 14, 2022 | Department of Health and … |
| 11 | RESEARCH TRIANGLE INSTITUTE | $90,009,167 | 3 | $30,003,056 | Sep 30, 2024 | Department of Health and … |
| 12 | HEALTH CARE SERVICE CORPORATION, A MUTUAL L… | $70,140,400 | 1 | $70,140,400 | Jul 08, 2022 | Department of Health and … |
