| 1 | QTC MEDICAL SERVICES INC | $7,105,726,345 | 72 | $98,690,644 | Jan 01, 2026 | Department of Veterans Af… |
| 2 | OPTUMSERVE HEALTH SERVICES, INC. | $5,891,560,266 | 45 | $130,923,561 | Apr 16, 2026 | Department of Veterans Af… |
| 3 | VETERANS EVALUATION SERVICES, INC | $5,667,229,475 | 46 | $123,200,641 | Jan 01, 2026 | Department of Veterans Af… |
| 4 | LOYAL SOURCE GOVERNMENT SERVICES LLC | $2,877,524,453 | 18 | $159,862,470 | Jan 01, 2026 | Department of Veterans Af… |
| 5 | SPECTRUM HEALTHCARE RESOURCES INCORPORATED | $217,355,774 | 1 | $217,355,774 | Dec 06, 2010 | Department of Health and … |
| 6 | ADVANCEMED CORPORATION | $130,567,100 | 1 | $130,567,100 | Jan 06, 2004 | Department of Energy |
| 7 | DAWSON CMS, LLC | $57,737,777 | 1 | $57,737,777 | Sep 01, 2022 | Department of Defense |
| 8 | CHENEGA TRI-SERVICES, LLC | $57,454,004 | 3 | $19,151,335 | Oct 31, 2025 | Department of Defense |
| 9 | WJM PROFESSIONAL SERVICES LLC | $54,763,308 | 5 | $10,952,662 | Jul 01, 2026 | Department of Homeland Se… |
| 10 | TRIBAL HEALTH, LLC | $43,738,747 | 7 | $6,248,392 | Jul 01, 2026 | Department of Health and … |
| 11 | PRAIRIE BAND HEALTH SERVICES INC | $41,871,315 | 12 | $3,489,276 | Oct 29, 2025 | Department of Health and … |
| 12 | LUKE & ASSOCIATES, INC. | $41,667,324 | 4 | $10,416,831 | Jun 13, 2025 | Department of Defense |
