| TITmk Ipsco | Catoosa | — | ◇ UNVERIFIED |
| THTop Hand Tower Company | Oklahoma City | — | ◇ UNVERIFIED |
| TSTornado SAFE, LLC. | Oklahoma City | — | ◇ UNVERIFIED |
| TCTower Components, INC. | Catoosa | — | ◇ UNVERIFIED |
| TKTransponder Key | Edmond | — | ◇ UNVERIFIED |
| TFTri Fab, LLC | Sand Springs | — | ◇ UNVERIFIED |
| TTTrifusion Tactical LLC | Broken Arrow | — | ◇ UNVERIFIED |
| TRTri Red, LLC | Rush Springs | — | ◇ UNVERIFIED |
| TITri-State Industries of Tulsa LLC | Tulsa | — | ◇ UNVERIFIED |
| TRT. Rowe Pipe, LLC | Ponca City | — | ◇ UNVERIFIED |
| TFTulsa Fin Tubes, INC. | Tulsa | — | ◇ UNVERIFIED |
| THTulsa Heaters, INC. | Tulsa | — | ◇ UNVERIFIED |
| TMTulsa Metal Fab INC. | Broken Arrow | — | ◇ UNVERIFIED |
| TMTulsa Metal Finishers, INC. | Sand Springs | — | ◇ UNVERIFIED |
| TOTulsa Ornamental Ironwork | Owasso | — | ◇ UNVERIFIED |
| ULU-change Lock Industries, INC. | Mustang | — | ◇ UNVERIFIED |
| UMUlrich Machine Works LLC | Bristow | — | ◇ UNVERIFIED |
| URUSA Rare Earth Magnets LLC / Stillwater Facility | Stillwater | — | ◇ UNVERIFIED |
| URUS Roaster CORP | Oklahoma City | — | ◇ UNVERIFIED |
| VNValmont Newmark | Claremore | — | ◇ UNVERIFIED |
| VCVelocity Custom Fabrication, Inc. | Tulsa | — | ◇ UNVERIFIED |
| VFVision Fabrications, LLC | Ponca City | — | ◇ UNVERIFIED |
| VSV & S Schuler Tubular Products, LLC | Muskogee | — | ◇ UNVERIFIED |
| WPWagner Plate Works, LLC | Tulsa | — | ◇ UNVERIFIED |
| WMWar Metals, INC. | Tulsa | — | ◇ UNVERIFIED |
| WIWaterloo Ind Inc/muskogee Facility | Muskogee | — | ◇ UNVERIFIED |
| WSWedco Sales and Service, INC. | Edmond | — | ◇ UNVERIFIED |
| WSWeibee Steel, INC | Newcastle | — | ◇ UNVERIFIED |
| WAWellsite Automation, LLC | Edmond | — | ◇ UNVERIFIED |
| WMWerco Manufacturing, INC. | Broken Arrow | — | ◇ UNVERIFIED |
| WPWoods Precision Products, INC. | Owasso | — | ◇ UNVERIFIED |
| WIWord Industries, INC. | Tulsa | — | ◇ UNVERIFIED |
| WWWorld Wide Exchangers INC. | Skiatook | — | ◇ UNVERIFIED |
| WEWorldwide Exchangers, INC. | Tulsa | — | ◇ UNVERIFIED |
| WCWorthington Cylinder | Claremore | — | ◇ UNVERIFIED |
| WTWyoming Ts INC. Dba Tornado Shelters INC | Caddo | — | ◇ UNVERIFIED |
