| TVTotal Valve Systems | Broken Arrow | 100–499 | ◐ LIKELY ACTIVE |
| TOTulsa OK. | Tulsa | 1–19 | ◐ LIKELY ACTIVE |
| TMTurbine Master Inc | Tahlequah | 20–99 | ◐ LIKELY ACTIVE |
| VIValco INC | Duncan | — | ◐ LIKELY ACTIVE |
| VGValence Grove DBA Pride Plating | Grove | 100–499 | ◐ LIKELY ACTIVE |
| VIValmont Industries Claremore Shipping | Claremore | 20–99 | ◐ LIKELY ACTIVE |
| VTVon Tungeln Equipment INC | El Reno | — | ◐ LIKELY ACTIVE |
| WIWesterman Inc. - Tulsa | Catoosa | 20–99 | ◐ LIKELY ACTIVE |
| WAWorldwide Air Coolers | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| ZMZeco Machine Inc | Guthrie | 20–99 | ◐ LIKELY ACTIVE |
| BSBlackfoot Services, LLC | Comanche | — | ◐ LIKELY ACTIVE |
| PPPeters Precision Machining, LLC | Claremore | — | ◐ LIKELY ACTIVE |
| 3D3 D Manufacturing, INC | Sand Springs | — | ◇ UNVERIFIED |
| 6W6g Welding & Fabrication, INC. | Cache | 1–19 | ◇ UNVERIFIED |
| ASAbco Steel, INC. | Glenpool | 1–19 | ◇ UNVERIFIED |
| APAdvanced Precision Fabricators | Tulsa | — | ◇ UNVERIFIED |
| APAirtech Products, INC. | Tulsa | 20–99 | ◇ UNVERIFIED |
| ASAllen Sheet Metal INC. | Tulsa | 1–19 | ◇ UNVERIFIED |
| AMAlliance Machine Service, Inc. | Tulsa | 1–19 | ◇ UNVERIFIED |
| AMAmerican Machining Company, LLC | Hominy | 1–19 | ◇ UNVERIFIED |
| AMAuto-turn Manufacturing, INC | Broken Arrow | 20–99 | ◇ UNVERIFIED |
| ABAvery Barron Industries - Fabrication, LLC | Tulsa | — | ◇ UNVERIFIED |
| ABA.w. Brueggemann CO. | Enid | 1–19 | ◇ UNVERIFIED |
| BMBradley Machine & Design, L.l.c. | Chickasha | 1–19 | ◇ UNVERIFIED |
| BEBreshears Enterprises, INC. | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| BIBy-weld Industries, INC. | Bixby | — | ◇ UNVERIFIED |
| CACasting and Coating, CORP. | Tulsa | 1–19 | ◇ UNVERIFIED |
| CMC & M Precision, INC. | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| CDCNC Designs LLC | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| CCCundiff Custom Fabrication,LLC | Stillwater | 1–19 | ◇ UNVERIFIED |
| DIDci Industries, INC. | Oklahoma City | 20–99 | ◇ UNVERIFIED |
| ELEconomasters, LLC | Tulsa | — | ◇ UNVERIFIED |
| EMEquus Metals Inc | Tulsa | 20–99 | ◇ UNVERIFIED |
| FSFabsco Shell & Tube, LLC | Sapulpa | 20–99 | ◇ UNVERIFIED |
| FSFence Solutions INC. | Enid | 1–19 | ◇ UNVERIFIED |
| FIFin-x, INC | Owasso | 1–19 | ◇ UNVERIFIED |
| FSFive Star Fabricators INC / Structural Steel Fabrication Facility | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| FWFlying W, INC. | Watonga | 1–19 | ◇ UNVERIFIED |
| FMFrazier Manufacturing, INC. | Sand Springs | 1–19 | ◇ UNVERIFIED |
| GMGenesis Metal CORP | Beggs | 1–19 | ◇ UNVERIFIED |
| HMHenson Manufacturing & Sales | Adair | 1–19 | ◇ UNVERIFIED |
| HHHorizon Hydraulics Inc. | Oklahoma City | 20–99 | ◇ UNVERIFIED |
| HHHorizon Hydraulics Inc. | Oklahoma City | 20–99 | ◇ UNVERIFIED |
| ISIdeal Specialty, INC. | Tulsa | 1–19 | ◇ UNVERIFIED |
| IMIndustrial Machine Company | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| ISIndustrial Splicing and Sling, L.l.c. | Tulsa | 20–99 | ◇ UNVERIFIED |
| IMInland Machine and Welding CO. | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| IMIon Machining Service, LLC | Oklahoma city | 1–19 | ◇ UNVERIFIED |
| JPJanke Products, LLC | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| JMJohnson Machine, INC. | Collinsville | — | ◇ UNVERIFIED |