| Protect Environmental Services Inc. | Fort Worth | TX | $0 |
| Provectus Environmental Products Incorporated | Sunbury | OH | Subcontractor |
| Quality Classic Abatement LLC | Lawrenceville | GA | $0 |
| Quality Environmental, Inc. | Santa Fe Springs | CA | Subcontractor |
| Quantum Investments, Inc. | Lynchburg | VA | $0 |
| Ranger Environmental Services LLC | Creola | AL | Subcontractor |
| R. B. Construction, Inc. | Fremont | CA | Subcontractor |
| Rc Group, Inc. | Rye | NY | $0 |
| Rcra Inc. | Benton | IL | $0 |
| Rea Remedial Solutions, L.c. | Valrico | FL | $0 |
| Redox Tech LLC | Cary | NC | Subcontractor |
| Remedial Construction Services LP | Houston | TX | $0 |
| Remtech Inc. | Marietta | GA | $0 |
| Renovo Services Inc. | Jacksonville | FL | Subcontractor |
| Revision Renovations Inc. | Saint Augustine | FL | Subcontractor |
| Revive Environmental Technology, LLC | Columbus | OH | Subcontractor |
| Richport Xtreme LLC | Hot Springs National Park | AR | Subcontractor |
| Riel Explosive Advice & Services Europe B.v. | Riel | | $0 |
| Riverside Environmental Services, Inc. | Yuma | AZ | Subcontractor |
| Rl Abatement Inc. | Hopewell | PA | Subcontractor |
| Robinson Brothers Environmental, Inc. | Dane | WI | Subcontractor |
| Royal Plus, Inc. | Snow Hill | MD | Subcontractor |
| Rsi Envirachem, LLC | San Francisco | CA | Subcontractor |
| Sacal Environmental & Management Co. | Macon | GA | $0 |
| Saedacco, LLC | Fort Mill | SC | Subcontractor |
| Safe & Sound Environmental, LLC | Media | PA | Subcontractor |
| Sawtooth Support Systems, LLC | Idaho Falls | ID | Subcontractor |
| Schroeder Contracting Inc. | Billings | MT | $0 |
| Sealaska Environmental Services, LLC | Seattle | WA | Subcontractor |
| Seaside Restoration Services LLC | Charleston | SC | Subcontractor |
| Sepco, Inc. | Binghamton | NY | Subcontractor |
| Servicemaster Of South Shore, Inc. | Scituate | MA | $0 |
| Sessler Environmental Services, LLC | Macedon | NY | Subcontractor |
| Set Inc. | Rio Rancho | NM | Subcontractor |
| Sevenson Environmental Services Of Pa., Inc. | Niagara Falls | NY | Subcontractor |
| Showalter Construction And Restoration, LLC | Thonotosassa | FL | Subcontractor |
| Simpson Environmental Services, LLC | Zephyrhills | FL | Subcontractor |
| Sis-cti LLC | White Rock | NM | Subcontractor |
| Sitecon Corp. Inc. | Cranston | RI | Subcontractor |
| Site Services Drilling LLC | Golden | CO | Subcontractor |
| Smaf Environmental LLC | Prineville | OR | $0 |
| Sooner Carpet Cleaning Incorporated | Norman | OK | $0 |
| Soundearth Strategies, Inc. | Seattle | WA | $0 |
| Southern Cat, Inc. | Panama City | FL | Subcontractor |
| Southwest Abatement Inc. | Albuquerque | NM | Subcontractor |
| Spartan Services LLC | Jefferson City | MO | $0 |
| Statewide Environmental Service, LLC | Petoskey | MI | $0 |
| Steamatic Of Southern Nevada | North Las Vegas | NV | $0 |
| Sterling Environmental Corp. | San Leandro | CA | Subcontractor |
| Stohl Remediation Services Inc. | Orchard Park | NY | $0 |
| S.t.o.p. Restoration LLC. (service Team Of Professionals) | Albuquerque | NM | $0 |
| Strategic Environmental Services, Inc. | Sutton | MA | Subcontractor |
| Summit Drilling, LLC | Bridgewater | NJ | Subcontractor |
| Summit Environmental Inc. | Hayden | ID | Subcontractor |
| Summit Environmental Services, LLC | Indianapolis | IN | Subcontractor |
| Summit Holdings Inc. | Oklahoma City | OK | Subcontractor |
| Sunrise Systems Of Brevard, Inc. | Cocoa | FL | Subcontractor |
| Taplin Enterprises LLC | Kalamazoo | MI | Subcontractor |
| Tasman Geosciences, Inc. | Wheat Ridge | CO | $0 |
| Tec-an, Inc. | Oklahoma City | OK | Subcontractor |
| Tejas Destructors LLC | Leander | TX | Subcontractor |
| Terra Systems Of Delaware, LLC | Lawrence Township | NJ | Subcontractor |
| Tersus Environmental, LLC | Wake Forest | NC | Subcontractor |
| Tetra Tech Ec, Inc.Richland, WA · UEI U465B6PMFQE7 | Richland | WA | $0 |
| Tetra Tech Ec, Inc.Irvine, CA · UEI Z545S4HVUNE8 | Irvine | CA | $0 |
| The 5 Seventeen Co. | Kamas | UT | $0 |
| The Environmental Group, Inc. | Beltsville | MD | $0 |
| Theia LLC | West Chester | PA | Subcontractor |
| Thornburgh Abatement Inc. | Saint Louis | MO | $0 |
| Titan Environmental Services Inc. | Kansas City | KS | $0 |
| Titan Industries LLC | Aiea | HI | Subcontractor |
| Tli & Environmental Services, Inc. | Kempner | TX | Subcontractor |
| Tonroy, Inc. | Comfort | TX | $0 |
| Total Care Restoration LLC | Doral | FL | Subcontractor |
| Total Control Inc. | Dickinson | ND | $0 |
| Trupro Remediation Services Group, Inc. | Moscow | PA | $0 |
| T Slack Environmental Services Inc. | Kenilworth | NJ | $0 |
| Turnkey Technical Services, LLC | Oliver Springs | TN | Subcontractor |
| Ultimate Abatement Company Inc. | Plainfield | MA | $0 |
| Unlimited Environmental, Inc. | Santa Fe Springs | CA | Subcontractor |
| Unlimited Restoration Specialists, Inc. | Norristown | PA | $0 |
| U.S. Demil, LLC | Amherst | NY | $0 |
| US Environmental Inc. | Downingtown | PA | Subcontractor |
| Valor Technologies, Inc. | Bolingbrook | IL | $0 |
| Vaspro Limited Liability Company | Millstone Township | NJ | $0 |
| Versar Errg, LLC | Washington | DC | $0 |
| Viking Specialty Services, LLC | Tempe | AZ | $0 |
| Vistabution LLC | Raleigh | NC | Subcontractor |
| Vista Geoscience LLC | Golden | CO | Subcontractor |
| Voss Ross Enterprise Inc. | Rio Linda | CA | $0 |
| Watkins Environmental, Inc. | San Diego | CA | Subcontractor |
| Weaver Consultants Group, LLC | Chicago | IL | Subcontractor |
| W.e.l., Inc. | Concord | VA | $0 |
| Wellington Environmental Consulting & Construction, Inc. | Saint Louis | MO | Subcontractor |
| Western Abatement Inc. | Livermore | CA | $0 |
| Western Mass Environmental LLC | West Springfield | MA | $0 |
| Whitsend III Inc. | Arnold | MD | $0 |
| W.l. French Excavating Corp. | North Billerica | MA | Subcontractor |
| WRS Environmental Services, Inc. | Holtsville | NY | $0 |
| Xavier Environmental Inc. | Portland | OR | $0 |
