| SAStewart and Stevenson Telge Road Facility | Houston | TX | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| SEStewart Efi Finishing | El Paso | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SISti International | Georgetown | TX | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| SCStmicroelectronics Carrollton Plant | Carrollton | TX | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SBStolt Barging Services | Channelview | TX | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| SPStp Products Manufacturing | Garland | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SPStreamline Polymers | Houston | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| S7Subsea 7 Ingleside | Ingleside | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| SLSugar Land Plant | Sugar Land | TX | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| SPSulzer Pumps Houston | Laporte | TX | Machinery Manufacturing333911 | — | ◇ UNVERIFIED |
| STSulzer Turbo Services Houston INC | La Porte | TX | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| SCSunbelt Chemicals | Dallas | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
 Sun Chemical CORP Grand Pairie Plant | Grand Prairie | TX | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| SESunitomo Electric Wiring Systems El Paso | El Paso | TX | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| SPSun Products Corporation Texas | Pasadena | TX | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| SRSunrise Redi Mix Cbp | Northlake | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSuperior Concrete | San Antonio | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMSuzorite Mineral Products | Dell City | TX | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SHSws Holdings Pasadena | Houston | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| SSylvania | Fort Worth | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SSSymons Steel Forms Div | New Braunfels | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
 Syngenta Crop Protection - Bay Port Site | Pasadena | TX | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| TPTank Partners | Seguin | TX | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| TSTarlton Supply | Brenham | TX | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| TITarrant Interiors | Fort Worth | TX | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| TATasco Amarillo Texas | Amarillo | TX | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| TTTatex Thermographers | Waco | TX | Printing and Related Support Activities323119 | — | ◇ UNVERIFIED |
| TPTaylor Publishing Company Newsfoto Plant | San Angelo | TX | Printing and Related Support Activities323117 | — | ◇ UNVERIFIED |
| TATaylor-wharton America | Baytown | TX | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| TPTejas Production Service | Victoria | TX | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| TCTenaris Coiled Tubes - Seacat | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| TKTessenderlo Kerley INC | Pasadena | TX | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| TATexas Aircraft Milling INC | Grand Prairie | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| TDTexas Division | Magnolia | TX | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| TETexas Electric Cooperative | Georgetown | TX | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◇ UNVERIFIED |
| TFTexas Fluorescence Laboratories | Austin | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| TFTexas Foundaries | Lufkin | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| TITexas Instruments Sherman Facility | Sherman | TX | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| TMTexas Metal Works | Woodville | TX | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
 Texas Nameplate CO INC | Dallas | TX | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| TPTexas Pipe Works | Navasota | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TPTexas Plating | El Paso | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| TSTexas Steel CO | Fort Worth | TX | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| TTTexas Tile Manufacturing | Houston | TX | Plastics and Rubber Products Manufacturing326192 | — | ◇ UNVERIFIED |
| TTTex Trude LP | Channelview | TX | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| TEThe Earthgrains Baking Paris Bakery | Paris | TX | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| TEThe Earthgrains Companies | El Paso | TX | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| TEThe Exone | Houston | TX | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| TFThe Folger Coffee Company | Sherman | TX | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| TGThe Geon Company | Deer Park | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
