| 1 | QTC MEDICAL SERVICES INC | $10,812,865,437 | 74 | $146,119,803 | Jan 01, 2026 | Department of Veterans Af… |
| 2 | OPTUMSERVE HEALTH SERVICES, INC. | $8,058,985,617 | 68 | $118,514,494 | Jan 01, 2026 | Department of Veterans Af… |
| 3 | VETERANS EVALUATION SERVICES, INC | $7,275,238,390 | 63 | $115,479,974 | Jan 01, 2026 | Department of Veterans Af… |
| 4 | LOYAL SOURCE GOVERNMENT SERVICES LLC | $3,010,874,029 | 19 | $158,467,054 | 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 | CHENEGA TRI-SERVICES, LLC | $82,375,588 | 4 | $20,593,897 | Oct 31, 2025 | Department of Defense |
| 8 | TRIBAL HEALTH, LLC | $61,129,693 | 8 | $7,641,212 | Jul 01, 2026 | Department of Health and … |
| 9 | ACUITY-CHS, LLC | $55,700,666 | 7 | $7,957,238 | Mar 28, 2024 | Department of the Treasury |
| 10 | WJM PROFESSIONAL SERVICES LLC | $55,116,183 | 6 | $9,186,031 | Jul 01, 2026 | Department of Veterans Af… |
| 11 | MEDICUS HEALTHCARE SOLUTIONS, LLC | $47,857,364 | 6 | $7,976,227 | Jun 01, 2026 | Department of Health and … |
| 12 | PRAIRIE BAND HEALTH SERVICES INC | $43,714,449 | 13 | $3,362,650 | Oct 29, 2025 | Department of Health and … |