| HAHerbs Auto Body - 610 Front St, Houston | Houston | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| HTHighland Threads | Houston | TX | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| HTHigh Tech Finishing | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| HCHoover Circular Solutions Houston | Houston | TX | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| HCHouston Coca-cola Bottling CO | Houston | TX | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| HEHouston East Asphalt Facility | Houston | TX | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| HFHouston Foam Fabricators INC | Houston | MS | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| HPHouston Plant | Houston | TX | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| HPHouston Plating & Bumper | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| HRHouston R & O | Houston | TX | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| HWHouston Wood Treatment Plant | Houston | MO | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| HCHrsc Combo Warehouse & Produce Facility | Houston | TX | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| HMHughes M.p.d. | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| IHImi Houston | Houston | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| ISImpreglon Surface Engineering Satsuma Facility | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ITInhance Technologies - Suite 100 | Houston | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| IDInnovex Downhole Solutions | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| IDInternational Diamond Services | Houston | TX | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ISIvy Steel and Wire Company | Houston | TX | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| KCKcc Corrosion Control | Houston | TX | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| KEKitchen Equipment Fabricating Dba Counter Craft | Houston | TX | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| LFLancaster Furniture Company | Houston | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| LPLead Products - Houston | Houston | TX | Primary Metal Manufacturing331423 | — | ◇ UNVERIFIED |
| LILfm Industries | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| LMLindon Manufacturing & Laboratory | Houston | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMaterial Containment INC | Houston | TX | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| MCMaximus Coffee Group | Houston | TX | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| MMerichem | Houston | TX | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| MGMetalplate Galvanizing LP | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MPMetal Prep Houston Plant | Houston | TX | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MHMetals House INC | Houston | TX | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| MIMetox International | Houston | TX | Electrical Equipment, Appliance & Component Manufacturing335931 | — | ◇ UNVERIFIED |
| MIMillar Instruments | Houston | TX | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| MIMirror Industries | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MIMississippi Investment Petroleum Company | Houston | MS | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| MCMuehlstein Compounded Products | Houston | TX | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MCMw Components - Houston Fasteners | Houston | TX | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP | Houston | TX | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| NFNhr Facility | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NINiltronix INC | Houston | TX | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| NMNrg Maintenance Services | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| NNvent | Houston | TX | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ 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 |
 Oil States Industries, INC. - Mmc | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Houston | TX | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| OSO'neal Steel INC | Houston | TX | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| OOteco | Houston | TX | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
