| CHCemex Holmes Ready Mix Plant | Houston | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICerda Industries, INC. | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CFChampagne Fine Printing | Houston | TX | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CCChampion Coatings | Houston | TX | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| CGChannel Greenhunter Biorefinery and Terminals | Houston | TX | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| CIChempak International | Houston | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CHChemstation Houston LLC | Houston | TX | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CPClorox Prods Mfg CO | Houston | TX | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators Incdba Cmc Rebar | Houston | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CSCmc Sterling Steel | Houston | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CVCray Valley USA LLC | Houston | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| CPCustom Pipe Coating Houston | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| DCDallas Chemical Techs INC | Houston | TX | Chemical Manufacturing325191 | — | ◇ UNVERIFIED |
| DMDaniel Measurement and Control | Houston | TX | Computer and Electronic Product Manufacturing334512 | — | ◇ UNVERIFIED |
| DUDeacero USA | Houston | TX | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| DFDee Foundries INC. | Houston | TX | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
| DPDels Plating Works | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| DEDelta Engineering | Houston | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| DRDerichebourg Recycling USA | Houston | TX | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| DCDiamond Coatings | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DFDiamond Fiberglass Houston Plant | Houston | TX | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| DHDoss & Harper Stone Co., INC. | Houston | MO | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| DPDover Precision Components | Houston | TX | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| DTDownhole Technology | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| DRD & R Metal Finishing | Houston | TX | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| DPDuco Pipe Manufacturing Facility | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EIE I Dupont De Nemours | Houston | TX | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ECEnduro Composite Systems | Houston | TX | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| EHEvans Houston CORP | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ECExxon Chemical Americas Houston Chemical Plant | Houston | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| FCFalcon Contracting Company Inc, Houston Asphalt Plant | Houston | MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| FSFarouk Systems Richy Rd Warehouse | Houston | TX | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| FCFlintlock Concrete Batch Plant | Houston | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FAFlow America | Houston | TX | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| FEFmc Energy Systems | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| FEForsyth Eng. & Machine CORP | Houston | TX | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| FHFusion Houston | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| GSGarlock Sealing Technologies | Houston | TX | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| GAGarret Aviation Services | Houston | TX | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| GHG & H Diversified Manufacturing | Houston | TX | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| GIGirard Industries INC | Houston | TX | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| GMGoodman Mfg. CO. L.p. | Houston | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| GIGull Industries | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| HCHalliburton Casing Manufacturing Center of Excelle | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services INC Security Dbs | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services North Belt Facility | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HSHannibal South | Houston | TX | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| HCHarry Cameron Technology Center | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HCHeadwaters Concrete Products - East Houston | Houston | TX | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| HSHenry Sealants Division | Houston | TX | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
