| TWT.D. Williamson - Pipeline Pigging Division | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| TTulsa | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| TLTulsa Levare US Inc | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| TWTulsa Winch, INC. | Jenks | — | ◐ LIKELY ACTIVE |
| ABAvery Barron Industries - Fabrication, LLC | Tulsa | — | ◇ UNVERIFIED |
| MMMetro Mechanical Supply | Tulsa | — | ◇ UNVERIFIED |
 A G Equipment Company / a G Equipment Hemlock Plant | Broken Arrow | — | ◇ UNVERIFIED |
| APAir Power Systems Company | Tulsa | — | ◇ UNVERIFIED |
| ADAmerican Document Shredding LLC | Tulsa | — | ◇ UNVERIFIED |
| AMApache Machine Company, INC. | Tulsa | — | ◇ UNVERIFIED |
| BHBaker Hughes Oilfield Operations INC / Tulsa Als Amo | Tulsa | — | ◇ UNVERIFIED |
| BTBonavista Technologies Inc. | Tulsa | — | ◇ UNVERIFIED |
 Clear Edge Filtration | Tulsa | — | ◇ UNVERIFIED |
| DVD & V Manufacturing, INC. | Sand Springs | — | ◇ UNVERIFIED |
| EIExpress Integrated Technologies | Tulsa | — | ◇ UNVERIFIED |
| FLFinishing Line Machining | Broken Arrow | — | ◇ UNVERIFIED |
| FMFlexrig Machinery Center | Tulsa | — | ◇ UNVERIFIED |
| JIJak Industries LLC | Tulsa | — | ◇ UNVERIFIED |
| MKMaster Kraft Tooling Corporation | Tulsa | — | ◇ UNVERIFIED |
| MMMid-continent Millwork L.l.c. | Tulsa | — | ◇ UNVERIFIED |
| PBPlan B Services and Solutions, LLC | Tulsa | — | ◇ UNVERIFIED |
| PLPremierflow, LLC | Tulsa | — | ◇ UNVERIFIED |
| PIPRS, Inc. | Tulsa | — | ◇ UNVERIFIED |
| RDRed Devil, Incorporated | Tulsa | — | ◇ UNVERIFIED |
| RRR & R Engineering | Broken Arrow | — | ◇ UNVERIFIED |
| SSSpecific Systems, LLC | Tulsa | — | ◇ UNVERIFIED |
| STSteel Tek | Tulsa | — | ◇ UNVERIFIED |
| TCTarget Completions LLC | Broken Arrow | — | ◇ UNVERIFIED |
| TTTucker Techs INC | Tulsa | — | ◇ UNVERIFIED |
| WEWenco Energy Corporation | Tulsa | — | ◇ UNVERIFIED |
| WIWjls, Inc., Dba Royal Vista Plastics, INC. | Tulsa | — | ◇ UNVERIFIED |
