| AUAirgas USA La Porte Region | La Porte | — | ◇ UNVERIFIED |
| ALAir Liquide America Specialty Gases La Porte | La Porte | — | ◇ UNVERIFIED |
| ALAir Liquide - Longview Pox Asu Plant | Longview | — | ◇ UNVERIFIED |
| APAir Products Manufacturing CORP. Hansford Facility | Gruver | — | ◇ UNVERIFIED |
| ACAmerican Coatings INC | Tomball | — | ◇ UNVERIFIED |
| APAquapharm Pchem | Latexo | — | ◇ UNVERIFIED |
| ADAsc Dallas | Grand Prairie | — | ◇ UNVERIFIED |
| APAstrazeneca Pharmaceuticals | Coppell | — | ◇ UNVERIFIED |
| AAsuragen | Austin | — | ◇ UNVERIFIED |
| AAustinpx | Georgetown | — | ◇ UNVERIFIED |
| BPBaker Petrolite Corporation | Midland | — | ◇ UNVERIFIED |
| BPBaker Petrolite Sugar Land | Sugar Land | — | ◇ UNVERIFIED |
| BCBasf Caldwell | Caldwell | — | ◇ UNVERIFIED |
| BCBasf Corporation | Carrollton | — | ◇ UNVERIFIED |
| BCBayer Cropscience - Erskine Facility | Lubbock | — | ◇ UNVERIFIED |
| BHBaze Hemical | Palestine | — | ◇ UNVERIFIED |
| BTBenuvia Therapeutics | Round Rock | — | ◇ UNVERIFIED |
| BLBig Lake Plant | Big Lake | — | ◇ UNVERIFIED |
| BTBig Three Industrial Gas INC Ingleside Plant | Ingleside | — | ◇ UNVERIFIED |
| BBio-synthesis | Lewisville | — | ◇ UNVERIFIED |
| BPBlackhawk Power Plant | Borger | — | ◇ UNVERIFIED |
| BGBoc Gases | Pasadena | — | ◇ UNVERIFIED |
| BGBoc Gases Baytown Co2 Plant | Baytown | — | ◇ UNVERIFIED |
| BMBonanza Marble | Houston | — | ◇ UNVERIFIED |
| BSBrenntag Southwest - Greens Bayou | Houston | — | ◇ UNVERIFIED |
| CCCalgon Corporation Sub Merck and CO | Pasadena | — | ◇ UNVERIFIED |
| CSCapital Southwest Rectorseal | Houston | — | ◇ UNVERIFIED |
| CLCbi Laboratories | Fort Worth | — | ◇ UNVERIFIED |
| CLCelanese Limited | Corpus Christi | — | ◇ UNVERIFIED |
| CLCelanese LTD | Pampa | — | ◇ UNVERIFIED |
| C3Chem 32 | West Orange | — | ◇ UNVERIFIED |
| CEClean Energy Texas Lng | Willis | — | ◇ UNVERIFIED |
| CPClorox Prods Mfg CO | Houston | — | ◇ UNVERIFIED |
| CPComposite Product Division Freeport | Freeport | — | ◇ UNVERIFIED |
| CFCorteva Freeport Operations | Freeport | — | ◇ UNVERIFIED |
| DCDallas Chemical Techs INC | Houston | — | ◇ UNVERIFIED |
| DPDfb Pharmaceuticals | Brooks City Base | — | ◇ UNVERIFIED |
| DPDon-nan Pump and Supply | Temple | — | ◇ UNVERIFIED |
| DKDorf Ketal Energy Services | Midland | — | ◇ UNVERIFIED |
| DLDpt Laboratories | Brooks City Base | — | ◇ UNVERIFIED |
| DPDu Pont Dallas Refinish Service Center | Dallas | — | ◇ UNVERIFIED |
 Eastman Chemical Tyler Terminal | Tyler | — | ◇ UNVERIFIED |
| EVEast Vealmoor Gas Plant | Coahoma | — | ◇ UNVERIFIED |
| EEEffective Environmental - Corsicana Plant | Corsicana | — | ◇ UNVERIFIED |
| EEEffective Environmental - Pasadena Facility | Pasadena | — | ◇ UNVERIFIED |
| EIE I Dupont De Nemours | Houston | — | ◇ UNVERIFIED |
| EPEl Paso Pvc | El Paso | — | ◇ UNVERIFIED |
| ETElt Trex Properties | Arlington | — | ◇ UNVERIFIED |
| EFEnnis Flint North | Ennis | — | ◇ UNVERIFIED |
| EPEnnis Paint South Plant | Ennis | — | ◇ UNVERIFIED |
