| SISpifil INC | Houston | TX | Machinery Manufacturing333998 | — | ● ACTIVE |
Spitzer Industries, INC | Houston | TX | Machinery Manufacturing333132 | — | ● ACTIVE |
Stewart & Stevenson Power Products LLC | Houston | TX | Machinery Manufacturing333132 | — | ● ACTIVE |
| SPSulzer Pumps US INC. | Houston | TX | Machinery Manufacturing333914 | — | ● ACTIVE |
Supreme Integrated Technology, INC. | Houston | TX | Machinery Manufacturing333998 | — | ● ACTIVE |
T.l. Precision Welding, INC | Houston | TX | Machinery Manufacturing333611 | — | ● ACTIVE |
Trojan Worldwide INC | Houston | TX | Machinery Manufacturing333248 | — | ● ACTIVE |
| VIValsamis, INC. | Houston | TX | Machinery Manufacturing333415 | — | ● ACTIVE |
Wilsherco, INC. | Houston | TX | Machinery Manufacturing333996 | — | ● ACTIVE |
| STSchlumberger Technology | Houston | TX | Fabricated Metal Product Manufacturing332996 | 100-499 | ◐ LIKELY ACTIVE |
Fairbanks Morse, LLC | Houston | TX | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| NINailor Industries of Texas | Houston | TX | Fabricated Metal Product Manufacturing332322 | 500+ | ◐ LIKELY ACTIVE |
| NONational Oilwell Varco Houston Repair Center | Houston | TX | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| NHNov Houston Creekmont Facility | Houston | TX | Machinery Manufacturing333132 | — | ◐ LIKELY ACTIVE |
| PFPv Fluid Products | Houston | TX | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
Smith International INC | Houston | TX | Machinery Manufacturing333132 | — | ◐ LIKELY ACTIVE |
Stewart Tubular Products LLC | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| BHBaker Hughes Rankin Rd Cnt | Houston | TX | Machinery Manufacturing333132 | — | ◐ LIKELY ACTIVE |
| BHBaker Hughes Emmott Road Plant | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| DIDril-quip INC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| GHGe Hydril | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NONational Oilwell | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RAReslink a Division of Schlumberger Technology | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| VSVarco Shaffer Facility | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
Aps Pressure Systems LLC | Houston | TX | Machinery Manufacturing333310 | — | ◐ LIKELY ACTIVE |
Compressor Engineering CORP | Houston | TX | Machinery Manufacturing333912 | — | ◐ LIKELY ACTIVE |
Helix Earth Technologies INC | Houston | TX | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| OTOrbital Traction, LLC | Houston | TX | Machinery Manufacturing333612 | — | ◐ LIKELY ACTIVE |
Prts Global, LLC | Houston | TX | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| SESamco Enterprises | Houston | TX | Machinery Manufacturing333911 | — | ◇ UNVERIFIED |
| APAfton Pumps - Ave N | Houston | TX | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
| CGC-b Gear & Machine | Houston | TX | Machinery Manufacturing333612 | 1-19 | ◐ LIKELY ACTIVE |
Doble Engineering Company (Houston, TX) | Houston | TX | Machinery Manufacturing333310 | 1-19 | ◐ LIKELY ACTIVE |
| DPDover Pearland Operations | Houston | TX | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| DODuffens Optical | Houston | TX | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| EEEnQuest Energy Solutions | Houston | TX | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| FFlowserve | Houston | TX | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| GPGeneral Plastics and Composites | Houston | TX | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| GCGulf Coast Oil & Gas Industries | Houston | TX | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| HHouston | Houston | TX | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| HSHouston Service Industries | Houston | TX | Machinery Manufacturing333319 | 20-99 | ◐ LIKELY ACTIVE |
| MEMeridian Equipment, INC. | Houston | TX | Machinery Manufacturing333132 | 20-99 | ◐ LIKELY ACTIVE |
| SAShield Air Solutions, INC. | Houston | TX | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| SESiemens Energy | Houston | TX | Machinery Manufacturing333611 | 100-499 | ◐ LIKELY ACTIVE |
| SLSpooltech, LLC | Houston | TX | Machinery Manufacturing333132 | — | ◐ LIKELY ACTIVE |
| TETas Energy | Houston | TX | Machinery Manufacturing333415 | 500+ | ◐ LIKELY ACTIVE |
| TETAS Energy Inc. Wingfoot | Houston | TX | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| TTcr | Houston | TX | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| TOThrustmaster of Texas, INC | Houston | TX | Machinery Manufacturing333120 | — | ▲ REPORTED CLOSED |
| UCUpg Company, LLC | Houston | TX | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |