| BCBurford Corp. | Maysville | OK | Machinery Manufacturing333241 | 20-99 | ◐ LIKELY ACTIVE |
| CWClints Welding | Oklahoma City | OK | Machinery Manufacturing333992 | 20-99 | ◐ LIKELY ACTIVE |
| CCookshack | Ponca City | OK | Machinery Manufacturing333318 | 20-99 | ◐ LIKELY ACTIVE |
Crane 1 Services - Production | Beggs | OK | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
Crane 1 Services - Tulsa Service | Sand Springs | OK | Machinery Manufacturing333923 | 1-19 | ◐ LIKELY ACTIVE |
| CECRC Evans Tulsa | Tulsa | OK | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| DEDarby Equipment Company | Tulsa | OK | Machinery Manufacturing333132 | 20-99 | ◐ LIKELY ACTIVE |
| DADiamond Attachments, LLC | Atoka | OK | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| DSDigitized Schematic Solutions LLC | Midwest City | OK | Machinery Manufacturing333120 | — | ◐ LIKELY ACTIVE |
| DPDWO - Perry Manufacturing Plant | Perry | OK | Machinery Manufacturing333120 | 500+ | ◐ LIKELY ACTIVE |
| EEE4 Expansions, LLC. | Edmond | OK | Machinery Manufacturing333924 | — | ◐ LIKELY ACTIVE |
| EDE-Z Drill, Inc | Perry | OK | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| FMFammco Manufacturing | Tulsa | OK | Machinery Manufacturing333132 | 1-19 | ◐ LIKELY ACTIVE |
| FLFlogistix, LP | Oklahoma City | OK | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| FWFlying W INC | Watonga | OK | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| FEFranklin Electric - OKC2 | Oklahoma City | OK | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| HTH&L Tooth | Tulsa | OK | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| HEHorn Equipment Company | Moore | OK | Machinery Manufacturing333132 | 20-99 | ◐ LIKELY ACTIVE |
| IIIaqs, INC | Oklahoma City | OK | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| IEInternational Environmental Corporation | Oklahoma City | OK | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| KIKnutson Irrigation Design, L.l.c. | Yukon | OK | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| MIMertz Integration, LLC. | Ponca City | OK | Machinery Manufacturing333120 | 100-499 | ◐ LIKELY ACTIVE |
| MMMickelson Metal Works, LLC | Tulsa | OK | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| NCNortek Coil Plant | Oklahoma City | OK | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| NDNortek DCC - Oklahoma City | Oklahoma City | OK | Machinery Manufacturing333415 | 500+ | ◐ LIKELY ACTIVE |
| NONortek Okarche | Okarche | OK | Machinery Manufacturing333415 | 500+ | ◐ LIKELY ACTIVE |
| NONortek OKC Parts and Service | Oklahoma City | OK | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| NMNOV Mobile Rigs Lindsay | Lindsay | OK | Machinery Manufacturing333132 | 1-19 | ◐ LIKELY ACTIVE |
| NONOV OKC Rig AM | Oklahoma City | OK | Machinery Manufacturing333132 | 20-99 | ◐ LIKELY ACTIVE |
| NONOV OKC Rig Spares | Oklahoma City | OK | Machinery Manufacturing333132 | 1-19 | ◐ LIKELY ACTIVE |
| 4D"OK 400 - Dampers" | Tulsa | OK | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| OPOSO Perforating | Oklahoma City | OK | Machinery Manufacturing333132 | 20-99 | ◐ LIKELY ACTIVE |
Palfinger USA Operations | Oklahoma City | OK | Machinery Manufacturing333923 | 100-499 | ◐ LIKELY ACTIVE |
| PLParker Lifting Services, LLC | Oologah | OK | Machinery Manufacturing333923 | — | ◐ LIKELY ACTIVE |
| PPft-tulsa | Tulsa | OK | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| RHRL Hudson and Company | Broken Arrow | OK | Machinery Manufacturing333511 | 100-499 | ◐ LIKELY ACTIVE |
| SOSemaSys OKC | Oklahoma City | OK | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| STServa Tulsa | Catoosa | OK | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
| SGS & G Towing LLC | Oklahoma City | OK | Machinery Manufacturing333112 | — | ◐ LIKELY ACTIVE |
| SIStarline INC | Oklahoma City | OK | Machinery Manufacturing333998 | — | ▲ REPORTED CLOSED |
| SPSubmersible Pumps, Inc. (SPI) | Cushing | OK | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
| SSSuperior Solutions Welding & Fabrication LLC | Oklahoma City | OK | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
| TWT.D. Williamson - Pipeline Pigging Division | Tulsa | OK | Machinery Manufacturing333132 | 20-99 | ◐ LIKELY ACTIVE |
| TKThermo King of Tulsa, LLC | Tulsa | OK | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| TNTtt Navy Americas LLC | Duncan | OK | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| TTulsa | Tulsa | OK | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| TLTulsa Levare US Inc | Tulsa | OK | Machinery Manufacturing333914 | 20-99 | ◐ LIKELY ACTIVE |
| TMTulsa Manufacturing Plant | Tulsa | OK | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| VIVmi INC | Cushing | OK | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| WMWw Manufacturing CO INC | Thomas | OK | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |