| NFN&s Flamespray | Mannford | — | ◐ LIKELY ACTIVE |
| OCOcv Control Valves / 7400 E 42nd Pl Paint Booth | Tulsa | — | ◐ LIKELY ACTIVE |
| PCPonca City Metal Products Faclty | Ponca City | — | ◐ LIKELY ACTIVE |
| PMPrecise Machining & Manufacturing LLC | Tulsa | — | ◐ LIKELY ACTIVE |
Quality Plating of Tulsa INC / 2665 N Darlington | Tulsa | — | ◐ LIKELY ACTIVE |
| VSVallourec Star LP / Muskogee Plt | Muskogee | — | ◐ LIKELY ACTIVE |
| VCValmont Coatings Oklahoma Galvanizing | Claremore | — | ◐ LIKELY ACTIVE |
| BMBaskins Machined Products | Collinsville | 20–99 | ◐ LIKELY ACTIVE |
Creed Machining LLC | Pryor | — | ◐ LIKELY ACTIVE |
Cutting Edge Technologies, LLC | Owasso | — | ◐ LIKELY ACTIVE |
Exodus Manufacturing LLC | Mead | — | ◐ LIKELY ACTIVE |
| FCFabwell CORP | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
Green Country Ammunition LLC | Tulsa | — | ◐ LIKELY ACTIVE |
| MIMoore Iron and Steel CORP. | Yale | 20–99 | ◐ LIKELY ACTIVE |
Neco Industries INC | Oklahoma City | — | ◐ LIKELY ACTIVE |
Okie Hydrogen LLC | Duncan | — | ◐ LIKELY ACTIVE |
| CSCapitol Steel and Iron / 1726 S Agnew | Oklahoma City | — | ◇ UNVERIFIED |
| 5R530 Road, LLC | Claremore | — | ◐ LIKELY ACTIVE |
| ASAcs Steel Co., LLC | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| ATAdvantage Terrafab LLC | Muskogee | — | ◐ LIKELY ACTIVE |
| ASAst Storage, LLC | Jay | — | ◐ LIKELY ACTIVE |
| BMBauman Machine INC. | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
| BLBoardman, LLC | Oklahoma City | — | ◐ LIKELY ACTIVE |
| BABroken Arrow Powder Coating, INC. | Broken Arrow | 20–99 | ◐ LIKELY ACTIVE |
| CUCae USA INC. | Broken Arrow | — | ◐ LIKELY ACTIVE |
| CICameron Intl - Okc Coatings / Oklahoma City Metal Coating Faclty | Oklahoma City | — | ◐ LIKELY ACTIVE |
| CCCasady 'n' Company, L.l.c. | Oklahoma City | — | ◐ LIKELY ACTIVE |
| CMCimarron Machine Services, Inc. | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| CMCmc Marine, Incorporated | Duncan | 20–99 | ◐ LIKELY ACTIVE |
| CCCorrpro Companies | Sand Springs | — | ◐ LIKELY ACTIVE |
| DEDragon Esp LTD / Ve Enterprises | Springer | — | ◐ LIKELY ACTIVE |
| ECEads Cooling Solutions, LLC | Catoosa | — | ◐ LIKELY ACTIVE |
| ESEBSCO Spring Co., Inc. | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| ELEmpire Laser & Metal Work, LLC | Broken Arrow | 20–99 | ◐ LIKELY ACTIVE |
| FSFabsco Shell & Tube LLC | Sapulpa | 20–99 | ◐ LIKELY ACTIVE |
| GEGastech Engineering LLC | Sapulpa | 100–499 | ◐ LIKELY ACTIVE |
| GXGen X Machine Technologies INC | Tulsa | — | ◐ LIKELY ACTIVE |
| HIHoneywell International INC. | Tulsa | — | ◐ LIKELY ACTIVE |
| JMJohnson Machine INC | Owasso | — | ◐ LIKELY ACTIVE |
| KKelvion | Catoosa | 500+ | ◐ LIKELY ACTIVE |
| LALos Angeles Boiler Works Inc. | Blackwell | 20–99 | ◐ LIKELY ACTIVE |
| MMMartens Machine Shop LLC | Fairview | 20–99 | ◐ LIKELY ACTIVE |
| MIMbci, INC. | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
| MMMcelroy Manufacturing Incorporated | Tulsa | — | ◐ LIKELY ACTIVE |
Midwest Precision, INC | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| MMMingo Manufacturing | Owasso | 20–99 | ◐ LIKELY ACTIVE |
| OCOklahoma Custom Coating | Seminole | — | ◐ LIKELY ACTIVE |
| OSOklahoma Steel & Wire CO. INC. | Madill | 100–499 | ◐ LIKELY ACTIVE |
| OSOps Sales Company | Dewey | 100–499 | ◐ LIKELY ACTIVE |
| PPPelco Products INC. | Edmond | 100–499 | ◐ LIKELY ACTIVE |