| NNNORDAM Nacelles and Thrust Reversers | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| OTOverbilt Trailer Company | Drumright | 20–99 | ◐ LIKELY ACTIVE |
| PWPratt & Whitney Military Aftermarket Services, INC. | Oklahoma City | — | ◐ LIKELY ACTIVE |
| TRThe Reading Truck Group LLC | Claremore | 100–499 | ◐ LIKELY ACTIVE |
| ADAtc Drivetrain, LLC | Oklahoma City | 500+ | ◐ LIKELY ACTIVE |
| CTCm Truck Beds - Kingston Facility | Kingston | — | ◐ LIKELY ACTIVE |
| DLDeatschwerks, LLC | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
| IAIndustrial Axle CO LLC / Shawnee Plant | Shawnee | — | ◐ LIKELY ACTIVE |
| MTMadill Trailer Mfg and Sales | Madill | — | ◐ LIKELY ACTIVE |
Mint Turbines LLC | Stroud | — | ◐ LIKELY ACTIVE |
| NCNewell Coach CORP / Newell Coach Miami Plant | Miami | — | ◐ LIKELY ACTIVE |
| PMParks Manufacturing LLC / Blue Wave Boats | Seminole | — | ◐ LIKELY ACTIVE |
| STStarlight Trailers Mfg., INC. | Claremore | — | ◐ LIKELY ACTIVE |
| 7S7447 S E 74th | Oklahoma City | — | ◇ UNVERIFIED |
| CMCadet Manufacturing INC / Cadet Truck Bodies | Chouteau | — | ◇ UNVERIFIED |
| CACapital Aviation | Bethany | — | ◇ UNVERIFIED |
| CMChoctaw Manufacturing and Defense Contractors | Mcalester | — | ◇ UNVERIFIED |
| CDChromalloy Div Ok / 1720 National Blvd | Midwest City | — | ◇ UNVERIFIED |
| CACimarron Aircraft CORP / Airport Industrial Park | El Reno | — | ◇ UNVERIFIED |
| CCCrane Carrier CO / Truck Mfg Plant | Tulsa | — | ◇ UNVERIFIED |
| DADowntown Airpark | Oklahoma City | — | ◇ UNVERIFIED |
| GRGabriel Ride Control, LLC | Chickasha | — | ◇ UNVERIFIED |
| GAGulfstream Aerospace Techs. | Bethany | — | ◇ UNVERIFIED |
| HIHaulmark Industries INC | Duncan | — | ◇ UNVERIFIED |
| MSMark-k Specialized Manufacturing, INC. | Oklahoma City | 20–99 | ◇ UNVERIFIED |
| MDMcdonnell Douglas Tulsa | Tulsa | — | ◇ UNVERIFIED |
| NRNordam Repair Division | Tulsa | — | ◇ UNVERIFIED |
| SHS & H Trailer Manufacturing CO (inc) | Madill | — | ◇ UNVERIFIED |
| STStarlite Trailers INC | Claremore | — | ◇ UNVERIFIED |
| TTTexoma Truck Bodies/texoma Truck Bodies | Colbert | — | ◇ UNVERIFIED |
| UPUnit Parts CO | Oklahoma City | — | ◇ UNVERIFIED |
| AAAccurus Aerospace Tulsa | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| AAAltus AFB, OK (OK001) | Oklahoma | 20–99 | ◐ LIKELY ACTIVE |
| AAAviation Avionics and Instruments INC. | Owasso | — | ▲ REPORTED CLOSED |
| BIBelshe Industries, Inc. | Tecumseh | 20–99 | ◐ LIKELY ACTIVE |
| BFBest Fender Products OK | Durant | 20–99 | ◐ LIKELY ACTIVE |
| BTBig Tex Madill (Dump) | Madill | 100–499 | ◐ LIKELY ACTIVE |
| CLCamtronics LLC | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| COCarvana Oklahoma City | Oklahoma City | 100–499 | ◐ LIKELY ACTIVE |
| CMChoctaw Manufacturing and Development | Mcalester | 20–99 | ◐ LIKELY ACTIVE |
| CKCM Kingston | Kingston | 100–499 | ◐ LIKELY ACTIVE |
| CPCM Pettijohn | Madill | 20–99 | ◐ LIKELY ACTIVE |
| CACSI Aerospace | CSI Aerospace | 100–499 | ◐ LIKELY ACTIVE |
| ESElectronics Solutions Tulsa | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| ESEnviro Systems | Ace Thermal Systems, 12037 N. Hwy 99, Seminole | 100–499 | ◐ LIKELY ACTIVE |
| ITInland Truck Parts Company 15 | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| ITInland Truck Parts Company 34 | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
| L0Lci - 089 | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| MTMartinrea Tulsa | Catoosa | 100–499 | ◐ LIKELY ACTIVE |
| NINORDAM Interiors and Structures | Tulsa | 500+ | ◐ LIKELY ACTIVE |