| SQSpectrum Quality Standards | Houston | — | ◐ LIKELY ACTIVE |
| SSSumika Semiconductor Materials Texas | Baytown | 20–99 | ◐ LIKELY ACTIVE |
| SHSweeny Hydrogen Production Plant | Sweeny | — | ◐ LIKELY ACTIVE |
| TBTBC Brinadd, LLC. | Houston | 1–19 | ◐ LIKELY ACTIVE |
| TKTessenderlo Kerley | Dumas | — | ◐ LIKELY ACTIVE |
| TITexas Industries | Dallas | 1–19 | ◐ LIKELY ACTIVE |
| TCThe Chemours Company FC, LLC - La Porte | La Porte | 100–499 | ◐ LIKELY ACTIVE |
| TSThe Scotts Company - Huntsville | Huntsville | 20–99 | ◐ LIKELY ACTIVE |
| TDTnpc Dallas Facility | Dallas | — | ◐ LIKELY ACTIVE |
| ULUniwell Laboratories, LLC | Fort Worth | 100–499 | ◐ LIKELY ACTIVE |
| WCWharton Chemical Complex | Hungerford | — | ◐ LIKELY ACTIVE |
| WWondercide | Round Rock | 20–99 | ◐ LIKELY ACTIVE |
| WMW.r Meadows of Texas | Fort Worth | 20–99 | ◐ LIKELY ACTIVE |
| ADAirgas Dry Ice | La Porte | — | ◐ LIKELY ACTIVE |
| ALAir Liquide Large Industries Nederland | Nederland | — | ◐ LIKELY ACTIVE |
| ALAir Liquide Large Industries U.s. Lp-freeport Hpu | Freeport | — | ◐ LIKELY ACTIVE |
| ALAir Liquide - Victoria Asu | Bloomington | — | ◐ LIKELY ACTIVE |
| ARAlcoa Reynolds Metals | Gregory | — | ◐ LIKELY ACTIVE |
| ASAllchem Services | Houston | — | ◐ LIKELY ACTIVE |
| AFAlternative Fuels Dev | Houston | — | ◐ LIKELY ACTIVE |
| AAAmerican Acryl | Pasadena | — | ◐ LIKELY ACTIVE |
| ACAmerican Chrome & Chemicals | Corpus Christi | — | ◐ LIKELY ACTIVE |
| ATAmerican Thermoplastics | Houston | — | ◐ LIKELY ACTIVE |
| APAqua Process Plant | Houston | — | ◐ LIKELY ACTIVE |
| ACArkema Crosby Plant | Crosby | — | ◐ LIKELY ACTIVE |
| ACArklatex Chemical Specialties - D/b/a Chemstation of East Texas | Longview | — | ◐ LIKELY ACTIVE |
| BABeaumont Aniline | Nederland | — | ◐ LIKELY ACTIVE |
| BMBeaumont Marine West Terminal | Beaumont | — | ◐ LIKELY ACTIVE |
| CCCalpine Clear Lake Cogeneration | Pasadena | — | ◐ LIKELY ACTIVE |
| DDalden | Southlake | — | ◐ LIKELY ACTIVE |
| DKDorf Ketal Energy Services | Pleasanton | — | ◐ LIKELY ACTIVE |
| FBFinoric Beasley Facility | Beasley | — | ◐ LIKELY ACTIVE |
| FOFruit of the Earth | Grand Prairie | — | ◐ LIKELY ACTIVE |
| HCHouston Chemical Complex Battleground | Houston | — | ◐ LIKELY ACTIVE |
| IBIon Biosciences at Star Park | San Marcos | — | ◐ LIKELY ACTIVE |
| LHLbc Houston, LP | Seabrook | — | ◐ LIKELY ACTIVE |
| NCNashtec Cc Plant | Gregory | — | ◐ LIKELY ACTIVE |
| RBRaven Butene-1, LLC | Baytown | — | ◐ LIKELY ACTIVE |
| SWSchlumberger Well Services Perforating and Testing | Fort Stockton | — | ◐ LIKELY ACTIVE |
| SCSelect Chemicals INC | Wichita Falls | — | ◐ LIKELY ACTIVE |
| SPSunedison Polysilicon Facility | Pasadena | — | ◐ LIKELY ACTIVE |
| TAT and R Chemicals INC | Clint | — | ◐ LIKELY ACTIVE |
| TBTerra Biochem Jasper Plant | Jasper | — | ◐ LIKELY ACTIVE |
| TMTexas Molecular - Deer Park Services | Deer Park | — | ◐ LIKELY ACTIVE |
| VVirbac | Fort Worth | — | ◐ LIKELY ACTIVE |
| ZCZeon Chemicals Texas Plant | Pasadena | — | ◐ LIKELY ACTIVE |
| 3C3m Company | Angleton | — | ◇ UNVERIFIED |
| ADAes Drilling Fluids Pleasanton Warehouse | Pleasanton | — | ◇ UNVERIFIED |
| ACAfton Chemical Additives Port Arthur Facility | Port Arthur | — | ◇ UNVERIFIED |
| AIAgri-empresa, INC. | Midland | — | ◇ UNVERIFIED |