| MCMuehlstein Compounded Products | Houston | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MCMw Components - Houston Fasteners | Houston | TX | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP | Houston | TX | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| NINiltronix INC | Houston | TX | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| NMNrg Maintenance Services | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| OIOfs International Houston Plant | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| OIOilfield-electric-marine INC | Houston | TX | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ◇ UNVERIFIED |
| OSOil States Industries | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| OSO'neal Steel INC | Houston | TX | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PBPepsi Bottling Group | Houston | TX | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| PPPerformance Plastic Produ | Houston | TX | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| PIPgi International | Houston | TX | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| PIPlexmar Incorporated | Houston | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PIPowell Industries Offshore | Houston | TX | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| PSPraxair Surface Technologies INC | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PPPro Plastics Baythorne Facility | Houston | TX | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| PPPro Plastics Windfern Facility | Houston | TX | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| QCQuest Chemical CORP | Houston | TX | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| RHReed Hycalog LP | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RSRelevant Solutions | Houston | TX | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| RCRepipe Construction | Houston | TX | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
 Riviana Foods Houston | Houston | TX | Food Manufacturing311423 | — | ◇ UNVERIFIED |
| RERti Extrusions | Houston | TX | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| SSSampson Street Facility | Houston | TX | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SSepramet | Houston | TX | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| SFSercel Fallstone | Houston | TX | Computer and Electronic Product Manufacturing334417 | — | ◇ UNVERIFIED |
| STService Transport | Houston | TX | Transportation Equipment Manufacturing336999 | — | ◇ UNVERIFIED |
| SASifco Applied Surface Concepts | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SCSmith Corrosion Services Incorporated | Houston | TX | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| SRSolid Rock Ready Mix Site | Houston | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSouth Coast Terminals Ptf | Houston | TX | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| SMSouthline Metal Products CO | Houston | TX | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| SCSrm Concrete Plant 402 | Houston | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| S3Stage 3 Separation | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SCStarpak CORP | Houston | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SAStewart and Stevenson Telge Road Facility | Houston | TX | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| SHSws Holdings Pasadena | Houston | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| TCTenaris Coiled Tubes - Seacat | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| TTTexas Tile Manufacturing | Houston | TX | Plastics and Rubber Products Manufacturing326192 | — | ◇ UNVERIFIED |
| TEThe Exone | Houston | TX | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| TCTimkensteel CORP | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| THTps Houston Group | Houston | TX | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| THTuboscope Highway 90 Coating Facility | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| TPTubular Processing Houston Operations | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| USU S Steel Oilwell Services Wheeling Machine Produc | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| VTVallourec Tube Alloy | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| VUVam USA Miller Rd | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| VIVarn International, INC. | Houston | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| VWVeolia Water North America Operating Services | Houston | TX | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
