| SPSurraj Plastic Co. | Garden Grove | CA | — | ◇ UNVERIFIED |
| SSSw Shattuck Chemical CO INC | Denver | CO | — | ◇ UNVERIFIED |
| SSylvania | Fort Worth | TX | — | ◇ UNVERIFIED |
| SISyncro INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| STSyntech Technology INC | Springfield | VA | — | ◇ UNVERIFIED |
| SCSynthio Chemicals | Broomfield | CO | — | ◇ UNVERIFIED |
| SISynthomer INC | Fitchburg | MA | — | ◇ UNVERIFIED |
| SFSysco Food Services | Walnut | CA | — | ◇ UNVERIFIED |
| SSSystem Seals INC | Brecksville | OH | — | ◇ UNVERIFIED |
| TMTacoma Metals INC | Tacoma | WA | — | ◇ UNVERIFIED |
| TPTalco Plastics | Long Beach | CA | — | ◇ UNVERIFIED |
| TTTank Tech Inc/bridgeport Chemical INC | Sikeston | MO | — | ◇ UNVERIFIED |
| TTapestry | Costa Mesa | CA | — | ◇ UNVERIFIED |
| TMTaylor Made Fiberglass, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| TLTdc LLC - Westlake Plant | Westlake | LA | — | ◇ UNVERIFIED |
| TATech America | Corona | CA | — | ◇ UNVERIFIED |
| TRTechnical Resin Packaging INC | Brooklyn Park | MN | — | ◇ UNVERIFIED |
| TPTejas Plastics, INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| TPTekni Plex INC | Branchburg | NJ | — | ◇ UNVERIFIED |
| TATeknor Apex-north Carolina | Jamestown | NC | — | ◇ UNVERIFIED |
| TITempil INC | South Plainfield | NJ | — | ◇ UNVERIFIED |
| TTerralithium | Brawley | CA | — | ◇ UNVERIFIED |
| TMTerra Mississippi Nitrogen (melamine Facility) | Donaldsonville | LA | — | ◇ UNVERIFIED |
| TRTesoro Refining and Marketing Co, LLC | Carson | CA | — | ◇ UNVERIFIED |
| TKTessenderlo Kerley | Dumas | TX | — | ◇ UNVERIFIED |
| TKTessenderlo Kerley INC | Fresno | CA | — | ◇ UNVERIFIED |
| TATetra Arkansas Project LLC - Tetra Arkansas Project - Evergreen Plant | Stamps | AR | — | ◇ UNVERIFIED |
| TATetra Arkansas Project LLC - Tetra Arkansas Project LLC - Evergreen #2 | Magnolia | AR | — | ◇ UNVERIFIED |
| TCTetra Chemicals | Westlake | LA | — | ◇ UNVERIFIED |
| TTTetra Technologies INC | El Dorado | AR | — | ◇ UNVERIFIED |
| TTTetra Technologies, INC. | Havertown | PA | — | ◇ UNVERIFIED |
| TRTextile Rubber & Chemical CO | Dalton | GA | — | ◇ UNVERIFIED |
| TPThacker Pass/kings River Valley Lithium Project | Orovada | NV | — | ◇ UNVERIFIED |
| TCThatcher Chemical of Florida INC | Palmetto | FL | — | ◇ UNVERIFIED |
Thatcher Company of California, INC. - Stockton | Stockton | CA | — | ◇ UNVERIFIED |
| TCThatcher Company of Montana | Missoula | MT | — | ◇ UNVERIFIED |
| TAThe Alpha Corporation of Tennessee INC | Perris | CA | — | ◇ UNVERIFIED |
| TAThe Art Lithocraft Company | Modesto | CA | — | ◇ UNVERIFIED |
| TCThe Chemours Company | Fremont | CA | — | ◇ UNVERIFIED |
| TDThe Dow Chemical CO | Joliet | IL | — | ◇ UNVERIFIED |
| TDThe Dow Chemical Company | Plaquemine | LA | — | ◇ UNVERIFIED |
| TFThe Fountain People, INC. | San Marcos | TX | — | ◇ UNVERIFIED |
| TGThe Geon Company | Deer Park | TX | — | ◇ UNVERIFIED |
| TJThe J M Fry CO | Richmond | VA | — | ◇ UNVERIFIED |
| TLThe Lewis Chemical CO. | Rome | GA | — | ◇ UNVERIFIED |
| TMThe Marbleworks | North Port | FL | — | ◇ UNVERIFIED |
| TMThe Mundy Companies | Pasadena | TX | — | ◇ UNVERIFIED |
The New York Blower Company | Philadelphia | MS | — | ◇ UNVERIFIED |
| TPThe P D George Company | Fort Wayne | IN | — | ◇ UNVERIFIED |
| TPThermedics Polymer Products | Woburn | MA | — | ◇ UNVERIFIED |