| GOGiant Oil Tools, USA LLC | Oklahoma City | — | ◇ UNVERIFIED |
| GSGideon Steel Panel Company, LLC | Oklahoma City | — | ◇ UNVERIFIED |
| GTGlenn Tool, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| GMGrand Machine, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| GPGreat Plains Rebar, LLC | Oklahoma City | — | ◇ UNVERIFIED |
| HIHarwell Industries | Oklahoma City | — | ◇ UNVERIFIED |
| HMHolmboe Manufacturing CO. | Oklahoma City | — | ◇ UNVERIFIED |
| IMIndustrial Machine Company | Oklahoma City | — | ◇ UNVERIFIED |
| IMInland Machine and Welding CO. | Oklahoma City | — | ◇ UNVERIFIED |
| JCJack's Custom Steel Products | Arcadia | — | ◇ UNVERIFIED |
| JPJanke Products, LLC | Oklahoma City | — | ◇ UNVERIFIED |
| JEJasar's Enterprises, INC. | Edmond | — | ◇ UNVERIFIED |
| MCMetal Container Corporation | Oklahoma City | — | ◇ UNVERIFIED |
 Metaltech, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| MMMidstate Manufacturing & Marketing, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| MEMLM Enterprises LLC | Oklahoma City | — | ◇ UNVERIFIED |
| MFMorgan Fabrication | Oklahoma City | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP / Nov Oklahoma City Rig Offshore | Oklahoma City | — | ◇ UNVERIFIED |
| OAOffroad Addiction, Inc | Oklahoma City | — | ◇ UNVERIFIED |
| OKOh Keys | Bethany | — | ◇ UNVERIFIED |
| PPPeerless Plating, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| PCPerformance Coatings INC | Oklahoma City | — | ◇ UNVERIFIED |
| PCPlatform Coatings LLC / Platform Coatings LLC | Oklahoma City | — | ◇ UNVERIFIED |
| PIPremiercraft INC. | Oklahoma City | — | ◇ UNVERIFIED |
| PSPremier Steel Services LLC | Glenpool | — | ◇ UNVERIFIED |
| PSProgressive Stamping, LLC | Oklahoma City | — | ◇ UNVERIFIED |
| PSPro Stainless & Sheet Metal LLC | Oklahoma City | — | ◇ UNVERIFIED |
| PSPublic Supply Company | Oklahoma City | — | ◇ UNVERIFIED |
| QSQuality Stainless, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| RFRedneck Firearms, INC. | Harrah | — | ◇ UNVERIFIED |
| RIRobertson-ceco Ii CORP. | Oklahoma City | — | ◇ UNVERIFIED |
| RPRupture Pin Technology, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| SMSheet Metal Specialist of Edmond, LLC | Edmond | — | ◇ UNVERIFIED |
| SSSmart Shelters, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| SESouthwest Engineering Company | Oklahoma City | — | ◇ UNVERIFIED |
| SMSunrooms & More Design Center INC. | Oklahoma City | — | ◇ UNVERIFIED |
| TDTed Davis Enterprises, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| TBTerry Building CO. | Oklahoma City | — | ◇ UNVERIFIED |
| THTop Hand Tower Company | Oklahoma City | — | ◇ UNVERIFIED |
| TSTornado SAFE, LLC. | Oklahoma City | — | ◇ UNVERIFIED |
| TKTransponder Key | Edmond | — | ◇ UNVERIFIED |
| URUS Roaster CORP | Oklahoma City | — | ◇ UNVERIFIED |
| WSWedco Sales and Service, INC. | Edmond | — | ◇ UNVERIFIED |
