| UTUnivation Technologies LLC - Catalyst Plant | South Charleston | WV | — | ◇ UNVERIFIED |
| ULUop LLC - Baton Rouge Plant | Baton Rouge | LA | — | ◇ UNVERIFIED |
| ULUop LLC - Uop Shreveport Plant | Shreveport | LA | — | ◇ UNVERIFIED |
| USU. S. Amines - Bucks Plant | Axis | AL | — | ◇ UNVERIFIED |
| UBUS Borax INC | Wilmington | CA | — | ◇ UNVERIFIED |
| UDUS Doe Portsmouth Gaseous Diffusion Plant - Bwcs Duf6 | Piketon | OH | — | ◇ UNVERIFIED |
| UDUS Doe Savannah River Site | Aiken | SC | — | ◇ UNVERIFIED |
| UMUS Magnesium Plant | Tooele | UT | — | ◇ UNVERIFIED |
| VIValenite INC - Die & Wear - Walmet | West Branch | MI | — | ◇ UNVERIFIED |
| VCVeckridge Chemical | Kearny | NJ | — | ◇ UNVERIFIED |
| VBVeolia Borderland Plant | El Paso | TX | — | ◇ UNVERIFIED |
| VNVeolia North America Regeneration Services | Linden | NJ | — | ◇ UNVERIFIED |
| VNVeolia North America Regeneration Services, LLC (1431350817) | North Bend | OH | — | ◇ UNVERIFIED |
| VRVeolia - Red Lion Plant | New Castle | DE | — | ◇ UNVERIFIED |
| VPVerdigris Plant | Claremore | OK | — | ◇ UNVERIFIED |
| VDVertellus Dwg LLC | Delaware Water Gap | PA | — | ◇ UNVERIFIED |
| VVertex | Camanche | IA | — | ◇ UNVERIFIED |
| VMVibrantz Minerals | Houston | TX | — | ◇ UNVERIFIED |
| VTVibrantz Technologies | Curtis Bay | MD | — | ◇ UNVERIFIED |
| VTVibrantz Technologies (1318170235) | Cleveland | OH | — | ◇ UNVERIFIED |
| VCVwr Chemicals LLC | Aurora | OH | — | ◇ UNVERIFIED |
| WPWacker Polysilicon North America LLC | Charleston | TN | — | ◇ UNVERIFIED |
| WTWaters Technology Corporation | Taunton | MA | — | ◇ UNVERIFIED |
| WEWestinghouse Electric Company Llc/columbia Fuel Fabrication Facility | Hopkins | SC | — | ◇ UNVERIFIED |
| WUWestlake US 2 LLC | Longview | WA | — | ◇ UNVERIFIED |
| WLWilbara LLC | Wilmington | NC | — | ◇ UNVERIFIED |
| WFWoodward Faclty | Woodward | OK | — | ◇ UNVERIFIED |
| WIWoodward Iodine Corporation | Woodward | OK | — | ◇ UNVERIFIED |
| WRW. R. Grace & CO. - Conn. | Chattanooga | TN | — | ◇ UNVERIFIED |
| WGW.r. Grace & CO. - Conn. Grace Construction Products | Augusta | GA | — | ◇ UNVERIFIED |
| WRW R Grace - Lake Charles Facility | Sulphur | LA | — | ◇ UNVERIFIED |
| ZKZep Kingman | Kingman | AZ | — | ◇ UNVERIFIED |
| AMAdvanced Materials and Catalysts LLC R&D | Conshohocken | PA | 20–99 | ◐ LIKELY ACTIVE |
| ASAdvanced Specialty Gases, LLC | Reno | NV | — | ◐ LIKELY ACTIVE |
| ACAgland Coop | Parkston | SD | — | ◐ LIKELY ACTIVE |
| AUAlbemarle U.S. Inc | Kings Mountain | NC | 100–499 | ◐ LIKELY ACTIVE |
| AUAllied Universal Corporation - Brunswick, GA | Brunswick | GA | 20–99 | ◐ LIKELY ACTIVE |
| AUAllied Universal Corporation - Ellisville MS | Ellisville | MS | 1–19 | ◐ LIKELY ACTIVE |
| AUAllied Universal Corporation - Fort Pierce, FL | Fort Pierce | FL | 20–99 | ◐ LIKELY ACTIVE |
| AUAllied Universal Corporation - Palmetto FL | Palmetto | FL | 20–99 | ◐ LIKELY ACTIVE |
| AIAmber Industrials INC. | Chicago | IL | — | ◐ LIKELY ACTIVE |
| ASAmerican Selenite, LLC | Littleton | CO | — | ◐ LIKELY ACTIVE |
| ASAmerican Soda (Solvay Chemicals) Parachute Sodium Bicarbonate Facility | Parachute | CO | 20–99 | ◐ LIKELY ACTIVE |
| AGAmes Goldsmith Corp - Rogers St | Glens Falls | NY | 20–99 | ◐ LIKELY ACTIVE |
| AEANP Enertech Inc. Kentucky | Elizabethtown | KY | 1–19 | ◐ LIKELY ACTIVE |
| ANApache Nitrogen Products inc | Stdavid | AZ | 20–99 | ◐ LIKELY ACTIVE |
| ALArcadium Lithium | Bessemer City | NC | 100–499 | ◐ LIKELY ACTIVE |
| ALArkansas Lithium Demonstration Plant | El Dorado | AR | 20–99 | ◐ LIKELY ACTIVE |
| ACArmel CORP | White Hall | AR | — | ◐ LIKELY ACTIVE |
| ASAtlanta Super Source Inc. | Kennesaw | GA | 20–99 | ◐ LIKELY ACTIVE |