| 1 | WASHINGTON SUBURBAN SANITARY COMMISSION | $69,054,399 | 1 | $69,054,399 | Nov 10, 2021 | Department of Health and … |
| 2 | CITY OF OAK RIDGE | $46,147,093 | 1 | $46,147,093 | Apr 15, 2000 | Department of Energy |
| 3 | VEOLIA WATER WEST OPERATING SERVICES INC | $27,899,966 | 3 | $9,299,989 | Apr 01, 2026 | Department of State |
| 4 | SUNSTATE ENVIRONMENTAL SERVICES INC | $17,520,666 | 1 | $17,520,666 | Oct 01, 2025 | Department of State |
| 5 | CLEAR LAKE CITY WATER AUTHORITY | $14,600,752 | 1 | $14,600,752 | Sep 15, 2021 | National Aeronautics and … |
| 6 | NORTHEAST OHIO REGIONAL SEWER DISTRICT | $12,377,084 | 2 | $6,188,542 | Dec 01, 2020 | National Aeronautics and … |
| 7 | BAIRCO CONSTRUCTION INC | $11,646,884 | 1 | $11,646,884 | Sep 12, 2025 | Department of the Interior |
| 8 | CITY OF COCOA | $5,928,644 | 1 | $5,928,644 | May 28, 2021 | National Aeronautics and … |
| 9 | OPTIMUM ENVIRONMENTAL CORPORATION | $4,353,250 | 3 | $1,451,083 | Aug 11, 2025 | Department of Agriculture |
| 10 | SOUTH GRANVILLE WATER & SEWER AUTH | $4,241,815 | 1 | $4,241,815 | Oct 01, 2025 | Department of Justice |
| 11 | ADVANTIX ENGINEERING CORP | $3,102,870 | 1 | $3,102,870 | Sep 28, 2023 | Department of Agriculture |
| 12 | DEPARTMENT OF WATER RESOURCES OREGON | $2,521,910 | 2 | $1,260,955 | Sep 01, 2022 | Department of the Interior |
