| Us Ecology Texas Inc | Robstown | 194.0k |
| Clean Harbors Deer Park Llc | La Porte | 51.0k |
| Oak Grove Steam Electric Station | Franklin | 50.0k |
| San Miguel Electric Cooperative Inc | Christine | 23.8k |
| Union Processing Systems Llc | Conroe | 19.7k |
| Martin Lake Steam Electric Station & Lignite Mine | Tatum | 18.7k |
| Sandy Creek Energy Station | Riesel | 15.9k |
| Texas Lime Co | Cleburne | 14.7k |
| Limestone Electric Generating Station | Jewett | 13.3k |
| W.a. Parish Electric Generating Station | Thompsons | 12.9k |
| Calaveras Power Station | San Antonio | 12.3k |
| American Electric Power Welsh Plant | Pittsburg | 11.3k |
| Inv Nylon Chemicals Americas Victoria Site | Victoria | 5.9k |
| Ineos Nitriles Usa Llc Green Lake Plant | Port Lavaca | 4.5k |
| Lcra Fayette Power Project | La Grange | 2.5k |
| Eurecat Us | Pasadena | 1.1k |
| Phillips 66 Co Sweeny Refinery Complex | Old Ocean | 911 |
| Premcor Refining Group Inc Port Arthur | Port Arthur | 761 |
| Houston Plating & Coatings Llc | South Houston | 505 |
| Philllips 66 Co Borger Refinery | Borger | 367 |
| Haldor Topsoe Inc | Pasadena | 367 |
| Oxea Corp Bay City Plant | Bay City | 353 |
| Sabre Industries | Fort Worth | 350 |
| Chem32 Llc | Orange | 336 |
| Valero Refining-Texas Lp Corpus Christi West Plant | Corpus Christi | 309 |
| Structural Metals Inc | Seguin | 282 |
| Centrifugal Castings | Temple | 229 |
| Shell Chemical Lp | Deer Park | 218 |
| Nucor Steel - Jewett Texas Div | Jewett | 191 |
| Valero Refining-Texas Lp | Texas City | 189 |
| Tesla Giga Texas | Austin | 175 |
| Gladieux Metals Recycling Llc | Freeport | 171 |
| Clean Harbors San Leon Inc | San Leon | 148 |
| Ketjen Llc - Bayport Plant | Pasadena | 90 |
| Citgo Refining & Chemicals Co Lp East Plant | Corpus Christi | 84 |
| Flint Hills Resources Corpus Christi Llc - West Plant | Corpus Christi | 71 |
| Chaparral Steel Midlothian Lp | Midlothian | 65 |
| Motiva-Port Arthur Refinery | Port Arthur | 50 |
| Veolia Es Technical Solutions Llc Port Arthur Facility | Beaumont | 39 |
| Delek Tyler Refinery | Tyler | 35 |
| Steel Dynamics Southwest Sinton Div | Sinton | 29 |
| Artco Bell Corp | Temple | 18 |
| Texas Lehigh Cement Co Lp | Buda | 14 |
| Phelps Dodge Copper Products Co | El Paso | 10 |
| Delta Centrifugal Llc | Temple | 10 |
| Equistar Chemicals Lp | Corpus Christi | 9 |
| Toyota Motor Manufacturing Texas | San Antonio | 8 |
| Us Plating Lp | Irving | 5 |
| Beaumont Gas-To Gasoline Plant | Beaumont | 2 |
| Phillips 66 Old Ocean Ngl Fractionation Plant | Old Ocean | 1 |
| S + S Industries | Houston | 1 |
| Diamond Green Diesel Port Arthur Facility | Port Arthur | 1 |
| Andersen Regional Manufacturing | Garland | 0 |
| Air Products Llc | Pasadena | 0 |
| W. R. Grace & Co Conn | Houston | 0 |
| Citgo Refining & Chemicals Co Lp-West Plant | Corpus Christi | 0 |
| Capitol Aggregates Inc. | San Antonio | 0 |
| Houston Refining Lp | Houston | 0 |
| Kitchen Equipment Co | Houston | 0 |
| Ineos Phenol | Pasadena | 0 |
| Kuraray America Inc Septon Bu | Pasadena | 0 |
| Marathonnorco Aerospace Inc | Waco | 0 |
| Cmc Steel Fabricators Inc. Dba Cmc Rebar Houston West | Houston | 0 |
| Chevron Phillips Chemical Co | Port Arthur | 0 |
| Cmc Steel Fabricators Inc. Dba Cmc Rebar Corpus Christi | Corpus Christi | 0 |
| Cmc Steel Fabricators Inc. Dba Cmc Rebar San Antonio | San Antonio | 0 |
| Cmc Steel Fabricators Inc. | San Marcos | 0 |
| Cmc Steel Fabricators Inc (Dba Cmc Capitol City Steel) | Buda | 0 |
| Cmc Steel Fabricators Inc.dba Cmc Rebar | Houston | 0 |
| Goodyear Tire & Rubber Co | Beaumont | 0 |
| Eastham Forge Inc. | Beaumont | 0 |
| Chevron Phillips Chemical Co Lp Borger Plant | Borger | 0 |
| Basf Corp | Bishop | 0 |
| Dura-Tech Processes | Mansfield | 0 |
| Cmc Steel Fabricators (Dba Cmc Rebar) | Melissa | 0 |
| Cmc Steel Us Llc Dba Cmc Rebar | Farmersville | 0 |
| Cmc Steel Fabricators Inc (Dba Cmc Coatings) | Waxahachie | 0 |
| Cmc Steel Fabricators Inc. Dba Cmc Rebar | Dallas | 0 |
| Edsco Fasteners | Denton | 0 |
| Cmc Steel Fabricators Inc (Dba Cmc Rebar) | Waxahachie | 0 |