| 1 | COAST PROFESSIONAL, INC. | $482,296,635 | 5 | $96,459,327 | Jan 05, 2026 | Department of the Treasury |
| 2 | NATIONAL RECOVERIES INC | $325,868,816 | 1 | $325,868,816 | Oct 15, 2015 | Department of Education |
| 3 | CONTINENTAL SERVICE GROUP, LLC | $264,762,656 | 9 | $29,418,073 | Jan 05, 2026 | Department of the Treasury |
| 4 | MAMMOTH TECH INC | $225,354,195 | 1 | $225,354,195 | Oct 16, 2015 | Department of Education |
| 5 | CENTRAL RESEARCH INC | $223,796,392 | 1 | $223,796,392 | Oct 16, 2015 | Department of Education |
| 6 | ACTION FINANCIAL SERVICES, LLC | $218,477,552 | 1 | $218,477,552 | Oct 16, 2015 | Department of Education |
| 7 | SAFEGUARD SERVICES LLC | $214,289,914 | 2 | $107,144,957 | Sep 30, 2008 | Department of Health and … |
| 8 | PERFORMANT RECOVERY, INC. | $212,828,765 | 3 | $70,942,922 | Feb 09, 2023 | Department of Health and … |
| 9 | F.H. CANN & ASSOCIATES, INC. | $202,866,241 | 4 | $50,716,560 | Sep 12, 2025 | Department of Homeland Se… |
| 10 | RELIANT CAPITAL SOLUTIONS LLC | $197,508,211 | 1 | $197,508,211 | Jul 29, 2016 | Department of Education |
| 11 | NATIONAL CREDIT SERVICES, INC. | $190,664,987 | 1 | $190,664,987 | Jul 29, 2016 | Department of Education |
| 12 | BASS & ASSOCIATES A PROFESSIONAL CORP | $75,480,465 | 1 | $75,480,465 | Jul 29, 2016 | Department of Education |