| MIMagna Imperio Systems | Houston | TX | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| MHMahindra Houston | Houston | TX | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| MCMarrone & Company INC. | Houston | TX | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| MFMaster Flo Valve Usa, INC. | Houston | TX | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
| MHMitsubishi Heavy Industries Compressor Internation | Houston | TX | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NRNguyen Rainbow INC | Houston | TX | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| NRNov Rig Systems Sam Houston Parkway | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| OOOmron Oilfield & Marine Services | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| PIPetrospect INC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| PPPump & Power Equipment | Houston | TX | Machinery Manufacturing333911 | — | ◇ UNVERIFIED |
| PFPv Fluids Cutten Road Facility | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| QMQuiroz Machine Shop | Houston | TX | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| RLReedhycalog LP Houston Fixed Cutter | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RReslink | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RERJ Engineering Systems Inc | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RERJ Engineering Systems Inc | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| RBRobert Brown | Houston | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| SASany America INC | Houston | TX | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| SBS & B Power Tool Company | Houston | TX | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| SGS&C Group Texas, LLC | Houston | TX | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| SDSeparation Dynamics International LTD | Houston | TX | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| SMSmi Manufacturing INC. | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
 Smith International | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| SOSouthwest Oilfield Products INC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| SBSpring Branch Alternator & Starter | Houston | TX | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| SOSweco Oilfield Services | Houston | TX | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| TITam International | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| TUTerex Utilities INC. | Houston | TX | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| TATexas All Temp Control LLC | Houston | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| TSThompson Scale Company | Houston | TX | Machinery Manufacturing333997 | — | ◇ UNVERIFIED |
| TTiss | Houston | TX | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| TMTitan Manufacturing, Inc. | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| TSTorque Systems Specialties INC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| VDVam Drilling USA INC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| VSVentilation Services, INC | Houston | TX | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| VGVetco Gray | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| VHVeterans Hydraulic Service, LLC | Houston | TX | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| VSViking Supply | Houston | TX | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| WLWeatherford Lamb Power Equipment Divisio | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| WHWorld Houston | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| WMWorldwide Materials Sourcing, L.l.c. | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| WOWorldwide Oilfield Machine | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| ZSZ-Tex Services, LLC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
