| TCTaylor Chemical, INC. | Taylor | PA | — | ◇ UNVERIFIED |
| TMTaylor Made Group LLC | Gloversville | NY | — | ◇ UNVERIFIED |
| TOTeam Oil Tools | Tulsa | OK | — | ◇ UNVERIFIED |
| TPTechmer Pm | Wichita | KS | — | ◇ UNVERIFIED |
| TPTechmer Pm | Dalton | GA | — | ◇ UNVERIFIED |
| TPTechmer Pm LLC | Rancho Dominguez | CA | — | ◇ UNVERIFIED |
| TMTech Met INC | Donora | PA | — | ◇ UNVERIFIED |
| TITechnic INC | Cranston | RI | — | ◇ UNVERIFIED |
| TATeknor Apex CO. | Pawtucket | RI | — | ◇ UNVERIFIED |
| TATeknor Apex Company, Maclin Division | City of Industry | CA | — | ◇ UNVERIFIED |
| TATeknor Apex Thermoplastic | Leominster | MA | — | ◇ UNVERIFIED |
| TCTeknor Color | Jacksonville | TX | — | ◇ UNVERIFIED |
| TCTeknor Color CO | Henderson | KY | — | ◇ UNVERIFIED |
| TPTencate Performance Composites | Camarillo | CA | — | ◇ UNVERIFIED |
| TDThe Dow Chemical CO | Wilmington | IL | — | ◇ UNVERIFIED |
| TDThe Dow Chemical Company | Marietta | GA | — | ◇ UNVERIFIED |
| TIThombert INC - Brooklyn | Brooklyn | IA | — | ◇ UNVERIFIED |
| TThunderline-z | Hampstead | NH | — | ◇ UNVERIFIED |
| TSTimpie Salt Processing Plant | Grantsville | UT | — | ◇ UNVERIFIED |
| TCTotalenergies Cray Valley - Beaumont | Beaumont | TX | — | ◇ UNVERIFIED |
| TPTotalenergies Petrochemicals & Refining Usa, INC. - Carville Polystyrene Plant | Carville | LA | — | ◇ UNVERIFIED |
| TPTotal Petrochemicals & Refining USA INC | Deer Park | TX | — | ◇ UNVERIFIED |
| TSTrinity Specialty Compounding INC | West Unity | OH | — | ◇ UNVERIFIED |
| TMTroy Manufacturing INC | Burton | OH | — | ◇ UNVERIFIED |
| UPUltra Pure Solutions INC | Castroville | CA | — | ◇ UNVERIFIED |
| UIUnited Industries Dba Chemsico | Saint Louis | MO | — | ◇ UNVERIFIED |
| USUnivar Solutions Powder Facility | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Ssc Facility | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Usa, LLC. Fka Dpc Enterprises, LP | Chattanooga | TN | — | ◇ UNVERIFIED |
| UAUS Army Pine Bluff Arsenal | Pine Bluff | AR | — | ◇ UNVERIFIED |
| UWUS Water Services INC | Cambridge | MN | — | ◇ UNVERIFIED |
| UIUyemura International Corporation | Southington | CT | — | ◇ UNVERIFIED |
| VCValspar Coatings | Garland | TX | — | ◇ UNVERIFIED |
| VSValspar Specialty Paints LLC (1576131795) | Massillon | OH | — | ◇ UNVERIFIED |
| VEVeolia Es Technical Solutions Llc/ Onyx Env Services CO | Henderson | CO | — | ◇ UNVERIFIED |
| VSVestolit Specialty Resins INC | Avon Lake | OH | — | ◇ UNVERIFIED |
| VUVesuvius USA Corporation - Cd (1318126134) | Brookpark | OH | — | ◇ UNVERIFIED |
| VTVoltarc Technologies INC | Waterbury | CT | — | ◇ UNVERIFIED |
| WCW2fuel - Crawfordsville Facility | Crawfordsville | IA | — | ◇ UNVERIFIED |
| WCWacker Chemical CORP - Polymers Div | Calvert City | KY | — | ◇ UNVERIFIED |
| WCWako Chemicals USA INC | Richmond | VA | — | ◇ UNVERIFIED |
| WCWalling Chemical Company | Sioux Falls | SD | — | ◇ UNVERIFIED |
| WTWater Treatment Specialist INC | Catano | PR | — | ◇ UNVERIFIED |
| WIWellman INC | Darlington | SC | — | ◇ UNVERIFIED |
| WOWellman of Mississippi INC | Bay Saint Louis | MS | — | ◇ UNVERIFIED |
| WCWestlake Chemicals & Vinyls LLC - Plaquemine Facility | Plaquemine | LA | — | ◇ UNVERIFIED |
| WEWestlake Epoxy INC | Bedford Park | IL | — | ◇ UNVERIFIED |
| WVWestlake Vinyls INC - Pvc Plant | Calvert City | KY | — | ◇ UNVERIFIED |
| WRWorld Resources Company | Tolleson | AZ | — | ◇ UNVERIFIED |
| WRW R Grace & CO -conn Grace Const Prod | North Bergen | NJ | — | ◇ UNVERIFIED |