| BDB D & J INC. | Tulsa | — | ◇ UNVERIFIED |
| BMBoyle Manufacturing | Tulsa | — | ◇ UNVERIFIED |
| BCBrooks Custom Fabrication, INC. | Tulsa | — | ◇ UNVERIFIED |
| BSBs&b Safety Sys L L C | Tulsa | — | ◇ UNVERIFIED |
| BGBuffalo Grating LLC | Tulsa | — | ◇ UNVERIFIED |
| BSBuilders Steel INC / 1924 S 49th W Ave Steel Fab Shop | Tulsa | — | ◇ UNVERIFIED |
| BWB & W Manufacturing Company | Tulsa | — | ◇ UNVERIFIED |
| CACasting and Coating, CORP. | Tulsa | — | ◇ UNVERIFIED |
 Cherokee Nation Red Wing, LLC | Tulsa | — | ◇ UNVERIFIED |
| CSChoctaw Soldiers Industries, INC. | Tulsa | — | ◇ UNVERIFIED |
| CMCimarron Machine Works | Tulsa | — | ◇ UNVERIFIED |
| CMCline Machine, INC. | Tulsa | — | ◇ UNVERIFIED |
| CIContinental Industries | Tulsa | — | ◇ UNVERIFIED |
| CMCopeland Manufacturing Corporation | Tulsa | — | ◇ UNVERIFIED |
| CICust-o-bend, INC. | Tulsa | — | ◇ UNVERIFIED |
| DMDilbeck Manufacturing, INC. | Tulsa | — | ◇ UNVERIFIED |
| DHDunham Heat Flow Products | Tulsa | — | ◇ UNVERIFIED |
| DMDunlap Manufacturing | Tulsa | — | ◇ UNVERIFIED |
| EGEmmaus Group, LLC | Tulsa | — | ◇ UNVERIFIED |
| EMEnterprise Manufacturing, LLC | Tulsa | — | ◇ UNVERIFIED |
| EWErnest Wieman Iron Works | Tulsa | — | ◇ UNVERIFIED |
| FSFabrication Solutions, LLC | Tulsa | — | ◇ UNVERIFIED |
| FIFabrico INC. | Tulsa | — | ◇ UNVERIFIED |
| FMFabtek Manufacturing, INC. | Tulsa | — | ◇ UNVERIFIED |
| FMFederal Metals, INC | Tulsa | — | ◇ UNVERIFIED |
| FTFinishing Technologies INC. | Tulsa | — | ◇ UNVERIFIED |
| FPFirst Process Steel, INC. | Tulsa | — | ◇ UNVERIFIED |
| FMFoster Machine | Tulsa | — | ◇ UNVERIFIED |
| FSFriction Solutions, LLC | Tulsa | — | ◇ UNVERIFIED |
| GMGivens Manufacturing, INC. | Tulsa | — | ◇ UNVERIFIED |
| GWGlobal Wire Cloth, LLC | Tulsa | — | ◇ UNVERIFIED |
| HSHarmony Star Fabrication LLC | Tulsa | — | ◇ UNVERIFIED |
| HTHeat Transfer Equipment CO. | Tulsa | — | ◇ UNVERIFIED |
| HSHigh Summit Capital II LLC | Tulsa | — | ◇ UNVERIFIED |
| ISIdeal Specialty, INC. | Tulsa | — | ◇ UNVERIFIED |
| ISIndustrial Splicing and Sling, L.l.c. | Tulsa | — | ◇ UNVERIFIED |
| ITIntegrated Tower Systems | Tulsa | — | ◇ UNVERIFIED |
| IFIpc Fabricators LLC | Tulsa | — | ◇ UNVERIFIED |
| JMJero Manufacturing, Inc. | Tulsa | — | ◇ UNVERIFIED |
| JAJoco Assembly LLC | Tulsa | — | ◇ UNVERIFIED |
| JSJorame Superior Honing | Tulsa | — | ◇ UNVERIFIED |
| JMJ's Metal Fabrication LLC | Tulsa | — | ◇ UNVERIFIED |
| KCKerkstra Creative Corporation | Tulsa | — | ◇ UNVERIFIED |
| LELaser En'ovation & Fabrication, INC. | Tulsa | — | ◇ UNVERIFIED |
| LGLaser Group, LLC | Tulsa | — | ◇ UNVERIFIED |
| MIMadison Industries, INC of Oklahoma | Tulsa | — | ◇ UNVERIFIED |
| MMalo | Tulsa | — | ◇ UNVERIFIED |
| MIMaro International Corporation | Tulsa | — | ◇ UNVERIFIED |
| MMMaro Manufacturing, INC. | Tulsa | — | ◇ UNVERIFIED |
| MCMetal Cleaning and Fininshing | Tulsa | — | ◇ UNVERIFIED |
