| 1 | CDM CONSTRUCTORS INC | $357,936,307 | 1 | $357,936,307 | Feb 21, 2017 | Department of the Interior |
| 2 | OSCAR RENDA CONTRACTING INC | $131,868,925 | 1 | $131,868,925 | Sep 20, 2024 | Department of the Interior |
| 3 | G.S.E. CONSTRUCTION COMPANY, INC. | $109,487,800 | 1 | $109,487,800 | May 28, 2026 | Department of the Interior |
| 4 | PCL CONSTRUCTION INC | $106,396,484 | 1 | $106,396,484 | Aug 20, 2024 | Department of State |
| 5 | FLATLAND ENERGY SERVICES LLC | $75,532,921 | 1 | $75,532,921 | Jun 09, 2026 | Department of the Interior |
| 6 | ARCHER WESTERN CONSTRUCTION, LLC | $73,632,385 | 1 | $73,632,385 | Sep 23, 2022 | Department of the Interior |
| 7 | RECORD STEEL AND CONSTRUCTION, INC. | $45,609,435 | 1 | $45,609,435 | May 13, 2025 | Department of the Interior |
| 8 | HARTMAN-WALSH PAINTING COMPANY | $34,778,359 | 1 | $34,778,359 | Sep 01, 2020 | Department of the Interior |
| 9 | BAIRCO CONSTRUCTION INC | $28,489,157 | 2 | $14,244,579 | Apr 13, 2026 | Department of the Interior |
| 10 | R.C.S. CONSTRUCTION, INC. | $27,004,233 | 1 | $27,004,233 | Dec 26, 2024 | Department of the Interior |
| 11 | GLOBAL ENGINEERING SERVICES INC | $16,818,876 | 2 | $8,409,438 | Jun 30, 2026 | Department of Veterans Af… |
| 12 | JMG CONSTRUCTORS LLC | $16,758,617 | 2 | $8,379,308 | Jun 30, 2025 | Department of the Interior |
