| Innovative Construction Solutions | Costa Mesa | CA | Subcontractor |
| Innovative Environmental Technologies Inc. | Doylestown | PA | Subcontractor |
| Insco Environmental, Inc. | Shawnee | KS | $0 |
| In Sight Restoration, LLC | Minneapolis | MN | $0 |
| In-situ Oxidative Technologies Inc. | Lawrence Township | NJ | Subcontractor |
| Insulation Technologies Inc. | Belle Chasse | LA | Subcontractor |
| Integrated Environmental Services, Inc. | Atlanta | GA | Subcontractor |
| In-viro Care LLC | Guaynabo | PR | $0 |
| Iso-pacific Remediation Technologies, Inc. | Richland | WA | Subcontractor |
| Issi Uxo & Consulting LLC | Grant | AL | Subcontractor |
| Jacob & Hefner Associates Inc. | Downers Grove | IL | Subcontractor |
| Jasi And Associates, Inc. | Houston | TX | $0 |
| JDC Demo & Abatement, LLC | Brockton | MA | Subcontractor |
| JDW Management, L.L.C. | Phoenix | AZ | $0 |
| Jeff Evans Inc. | Flowood | MS | $0 |
| JJPS, Inc. | Washington | DC | $0 |
| J&M Keystone, Inc. | Spring Valley | CA | Subcontractor |
| Job Site Services Inc. | Freeland | MI | Subcontractor |
| JSR Environmental Services, LLC | Dexter | MO | $0 |
| Juan C Patino | Trophy Club | TX | $0 |
| JVN Restoration Inc. | Staten Island | NY | $0 |
| K & A Environmental Contractors Inc. | Mohnton | PA | $0 |
| Kalyani Environmental Solutions LLC | Baltimore | MD | $0 |
| K & H Reclamation LLC | Fort Duchesne | UT | $0 |
| Kirby Environmental 2025 LLC | Rexford | MT | $0 |
| Kleen Sweep Ventures, LLC | New London | CT | $0 |
| Koman Government Solutions, LLCExton, PA · UEI HDSYVTM5W256 | Exton | PA | Subcontractor |
| Koman Government Solutions, LLCShalimar, FL · UEI Z18JKQZ3LKA5 | Shalimar | FL | Subcontractor |
| Kowalski Construction, Inc. | Phoenix | AZ | $0 |
| Lakeshore Environmental Contractors LLC | Birmingham | AL | Subcontractor |
| Lata-atkins Technical Services, LLC | Albuquerque | NM | Subcontractor |
| Lata-sharp Remediation Services, LLCWesterville, OH · UEI NRU2GZ9XQ8K5 | Westerville | OH | $0 |
| Lata-sharp Remediation Services, LLCAlbuquerque, NM · UEI TDMSDKXG9859 | Albuquerque | NM | $0 |
| Lcfumb, LLC | Wilmington | NC | $0 |
| Legacy Remediation, Inc. | Santa Ana | CA | Subcontractor |
| Lepi Enterprises Inc. | Zanesville | OH | Subcontractor |
| LKR, LLC | Albuquerque | NM | $0 |
| Los Alamos Technical Associates, Inc. | White Rock | NM | Subcontractor |
| Loureiro Engineering Associates, Inc. | Plainville | CT | Subcontractor |
| Lovvorn Abatement & Insulation, LLC | Shelbyville | TN | Subcontractor |
| Luse Environmental Services Inc. | Aurora | IL | Subcontractor |
| Marine Environmental Services LLC | Palm Harbor | FL | Subcontractor |
| Marine Spill Response Corporation | Herndon | VA | $0 |
| Marion Environmental Inc. | Chattanooga | TN | $0 |
| Martin Environmental Services, LLC | Schenectady | NY | $0 |
| Medi's Airconditioning And Refrigeration Inc. | Dededo | GU | Subcontractor |
| MFH Environmental Corp. | El Paso | TX | Subcontractor |
| MHF Services, LLC | Wexford | PA | Subcontractor |
| Midwest Asbestos Abatement Corporation | Saint Peters | MO | Subcontractor |
| Midwestern Drilling, LLC | Ashby | MN | Subcontractor |
| Military Environmental & Construction Corporation | Holly Ridge | NC | $0 |
| Millman Systems, LLC | Harwood | MD | $0 |
| Mohave Restoration, Inc. | Henderson | NV | Subcontractor |
| Mooring Recovery Services LLC | Benbrook | TX | Subcontractor |
| Morales III Jose | Fullerton | CA | $0 |
| Morris Insulation & Environmental, Inc. | Augusta | GA | Subcontractor |
| Mp Environmental Services Inc. | Plattsburgh | NY | Subcontractor |
| Munitions Management Group, LLC | Knoxville | TN | Subcontractor |
| Myane Insulation & Construction Co. Inc. | Premont | TX | Subcontractor |
| Na Alii-errg JV | Honolulu | HI | Subcontractor |
| National Environmental Contracting Inc. | Louisville | KY | $0 |
| National Environmental Group LLC | Flint | MI | Subcontractor |
| National Environmental Services Corp. | Bloomington | IN | $0 |
| Nationwide Remediation Partners, LLC | Newport News | VA | $0 |
| Nature's Way Environmental Consultants And Contractors, Inc. | Alden | NY | $0 |
| New England Yankee Construction, LLC | West Haven | CT | $0 |
| New Horizons Enterprises, L.L.C. | Kansas City | MO | $0 |
| Northstar Cg LP | Issaquah | WA | Subcontractor |
| Northstar Contracting Group, Inc. | Everett | MA | $0 |
| Northstar Facility & Site Services Inc. | Denver | CO | Subcontractor |
| Northstar Group Services, Inc. | New York | NY | Subcontractor |
| Northwest Hazmat, Incorporated | Springfield | OR | $0 |
| NRC Environmental Services Inc. | Spokane | WA | $0 |
| NRC Ny Environmental Services, Inc. | Syracuse | NY | Subcontractor |
| Nuna Remediation, LLC | Igiugig | AK | $0 |
| O6 Environmental, LLC | Saint Louis | MO | Subcontractor |
| Ofrs, Inc. | Signal Hill | CA | $0 |
| Ohio Technical Services, Inc. | Grove City | OH | $0 |
| Onion Enterprises, Inc. | Saint Petersburg | FL | Subcontractor |
| On-site Environmental Inc. | Vega Alta | PR | Subcontractor |
| Ontario Specialty Contracting, LLC | Buffalo | NY | Subcontractor |
| Pacific Coast Carbon LLC | Ridgefield | WA | Subcontractor |
| Pacific States Environmental Contractors, Inc. | Dublin | CA | Subcontractor |
| Pacific Technologies Inc. | Boise | ID | $0 |
| Pal Environmental Safety Corp. | Long Island City | NY | Subcontractor |
| Penoco, Inc. | Pleasant Gap | PA | $0 |
| Performance Abatement Services Inc.Vancouver, WA · UEI DUHPCHJYAKG7 | Vancouver | WA | Subcontractor |
| Performance Abatement Services Inc.Lenexa, KS · UEI SJC9S5XGVF16 | Lenexa | KS | Subcontractor |
| Performance Abatement Services Inc.Woodinville, WA · UEI VC1VPVA1ZAM6 | Woodinville | WA | Subcontractor |
| P&G Restoration, LLC | Omaha | NE | Subcontractor |
| Phil-am Enterprises, Inc. | Salem | OR | $0 |
| Pika-mp JV LLC | Stafford | TX | $0 |
| Pinnacle Environmental Corp. | Carlstadt | NJ | $0 |
| Ponder Environmental Services, Inc. | Benicia | CA | Subcontractor |
| Potomac Abatement, LLC | Jessup | MD | Subcontractor |
| Premier Environmental LLC | Aurora | CO | $0 |
| Progress Environmental LLC | Capitol Heights | MD | Subcontractor |
| Prorestore LLC | Shrewsbury | MA | Subcontractor |
| Proservice Environmental LLC | Parlin | NJ | $0 |
| Pro-tech Environmental & Construction Services Inc. | Grand Rapids | MI | $0 |
