The Eron Corporation | Afton | — | ● ACTIVE |
The G. C. Broach Company | Tulsa | — | ● ACTIVE |
Thomas Energy Systems INC | Tulsa | — | ● ACTIVE |
Tobe Energy CORP | Oklahoma City | — | ● ACTIVE |
United Refrigeration INC | Lawton | — | ● ACTIVE |
Worksaver Material Handling Equipment CO | Shawnee | — | ● ACTIVE |
| CCClimate Craft, INC. | Oklahoma City | 100–499 | ◐ LIKELY ACTIVE |
| CIClimatemaster INC | Oklahoma City | 100–499 | ◐ LIKELY ACTIVE |
| TWTulsa Winch Group Twg / Tulsa Winch | Jenks | — | ◐ LIKELY ACTIVE |
| COCable Operations | Claremore | — | ◐ LIKELY ACTIVE |
| CMCharles Machine Works INC the / 1959 W Fir Ave | Perry | — | ◐ LIKELY ACTIVE |
| CCClimacool CORP | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
| DLD & L Oil Tools | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| RCRae CORP / Pryor Plant | Pryor | — | ◐ LIKELY ACTIVE |
| STSolar Turbines Broken Arrow | Broken Arrow | 100–499 | ◐ LIKELY ACTIVE |
| TUTerex USA LLC / Cmi Terex CORP | Oklahoma City | — | ◐ LIKELY ACTIVE |
| ZWZeeco West | Broken Arrow | 100–499 | ◐ LIKELY ACTIVE |
| UMUe Manufacturing | Oklahoma City | — | ◐ LIKELY ACTIVE |
| 1E15 E Oklahoma Ave Spray Paint Booths | Okarche | — | ◇ UNVERIFIED |
| AIAaon INC / 2425 S Yukon Ave | Tulsa | — | ◇ UNVERIFIED |
| BHBaker Hughes, Broken Arrow Facility | Broken Arrow | — | ◇ UNVERIFIED |
| BHBaker Hughes Oilfield Operations, LLC | Oklahoma City | — | ◇ UNVERIFIED |
| EHEaton Hydraulics INC | Shawnee | — | ◇ UNVERIFIED |
| FCFife CORP | Oklahoma City | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services, INC. | Duncan | — | ◇ UNVERIFIED |
| IEInternational Envir CORP / Air Conditioning Manufacturing Plant | Oklahoma City | — | ◇ UNVERIFIED |
| LELinde Engineering North America, LLC | Catoosa | — | ◇ UNVERIFIED |
| NSNorris Sucker Rods / 4801 W 49th St Norris Sucker Rod Faclt | Tulsa | — | ◇ UNVERIFIED |
| QIQuikwater, INC. | Sand Springs | — | ◇ UNVERIFIED |
| SBSchlumberger Bartlesville Product Center | Bartlesville | — | ◇ UNVERIFIED |
| TWTd Williamson INC / 6801 S 65th W Ave | Sapulpa | — | ◇ UNVERIFIED |
| UEUnited Engines, LLC | Oklahoma City | — | ◇ UNVERIFIED |
| VPVault Pressure Control Shawnee | Shawnee | — | ◇ UNVERIFIED |
| ZIZeeco INC | Broken Arrow | — | ◇ UNVERIFIED |
Hinz Refrigeration, INC. | Clinton | — | ◐ LIKELY ACTIVE |
United Refrigeration, INC. | Oklahoma City | — | ◐ LIKELY ACTIVE |
| AFAAF Flanders Oklahoma | Ardmore | 100–499 | ◐ LIKELY ACTIVE |
| ACAlltra CORP | Dewey | — | ◐ LIKELY ACTIVE |
| AEArrow Engine Company | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| CTCallidus Tech Inc/beggs Combustion Res | Beggs | — | ◐ LIKELY ACTIVE |
| FFFacet Filtration Stilwell Plant | Stilwell | 100–499 | ◐ LIKELY ACTIVE |
| HEHalliburton Energy Services, INC. - Tulsa, Ok | Tulsa | — | ◐ LIKELY ACTIVE |
| LULevare Us, INC. | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| MMMingo Manufacturing | Owasso | 20–99 | ◐ LIKELY ACTIVE |
| NHNov Hydra Rig Duncan | Duncan | — | ◐ LIKELY ACTIVE |
| NLNov Lindsay Mobile Rigs | Lindsay | — | ◐ LIKELY ACTIVE |
| PWPaccar Winch INC / Okmulgee Facility | Okmulgee | — | ◐ LIKELY ACTIVE |
| PMPrecision Metal Fab INC. | Ponca City | 20–99 | ◐ LIKELY ACTIVE |
| RWRamsey Winch | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| TWT.d. Williamson | Tulsa | — | ◐ LIKELY ACTIVE |