| 1 | TETRA TECH, INC. | $460,907,932 | 177 | $2,604,000 | Sep 09, 2026 | Environmental Protection … |
| 2 | EASTERN RESEARCH GROUP INC | $293,040,563 | 151 | $1,940,666 | Sep 15, 2026 | Environmental Protection … |
| 3 | PROJECT ENHANCEMENT CORPORATION | $262,624,126 | 12 | $21,885,344 | Aug 19, 2024 | Department of Energy |
| 4 | LYNKER CORPORATION | $158,841,917 | 14 | $11,345,851 | Aug 01, 2024 | Department of Commerce |
| 5 | THE CADMUS GROUP LLC | $153,490,017 | 91 | $1,686,703 | Sep 30, 2026 | Environmental Protection … |
| 6 | WESTON SOLUTIONS INC | $143,107,164 | 72 | $1,987,599 | Sep 03, 2026 | Environmental Protection … |
| 7 | LOCKHEED MARTIN SERVICES, LLC | $139,903,834 | 1 | $139,903,834 | Sep 23, 2009 | Environmental Protection … |
| 8 | ENVIRONMENTAL INCENTIVES, INC. | $132,854,428 | 5 | $26,570,886 | Sep 12, 2024 | Agency For International … |
| 9 | S C & A INC | $111,579,293 | 22 | $5,071,786 | Jul 13, 2026 | Environmental Protection … |
| 10 | ICF INCORPORATED, L.L.C. | $82,836,909 | 30 | $2,761,230 | Jul 16, 2026 | Environmental Protection … |
| 11 | SKEO SOLUTIONS, INC | $81,702,050 | 12 | $6,808,504 | Aug 10, 2023 | Environmental Protection … |
| 12 | VERNADERO GROUP INC | $77,160,657 | 16 | $4,822,541 | Aug 28, 2026 | Department of Homeland Se… |
