 Webco Industries, INC. Ok Dist. Div | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| SSSand Springs | Sand Springs | — | ◐ LIKELY ACTIVE |
| WIWebco Industries, Star Center Tube | Sand Springs | — | ◐ LIKELY ACTIVE |
| JZJohn Zink Apache Facility | Tulsa | — | ◐ LIKELY ACTIVE |
| AIAlpha Investment Casting CORP / Alpha Investment Casting CORP | Tulsa | — | ◇ UNVERIFIED |
| AFAmerican Foundry Group LLC - Bixby | Bixby | — | ◇ UNVERIFIED |
| VNValmont Newmark | Tulsa | — | ◇ UNVERIFIED |
| Webco Industries, INC. Swt Cooper Bldg | Sand Springs | — | ◇ UNVERIFIED |
| TFTaylor Forge Engineered Systems Tulsa | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| 2S2300 S Hwy 97 | Sand Springs | — | ◇ UNVERIFIED |
| BCBorg Compressed Steel CORP | Tulsa | — | ◇ UNVERIFIED |
| ECEmpire Casting - Tulsa Gray Iron Fndry | Tulsa | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel - Sand Springs Facility | Sand Springs | — | ◇ UNVERIFIED |
 Metal Dynamics CORP / Ferrous and Non Ferrous Foundry | Tulsa | — | ◇ UNVERIFIED |
| NANov Ameron Tulsa Pole Products Tube Manufacturing | Tulsa | — | ◇ UNVERIFIED |
| NANov Ameron Tulsa Pole Products Welding & Fabrication | Tulsa | — | ◇ UNVERIFIED |
| PBProgressive Brass Mfg CO / Progressive Brass Mfg CO | Tulsa | — | ◇ UNVERIFIED |
| TAT and L Foundry INC / T and L Foundry | Glenpool | — | ◇ UNVERIFIED |
| Webco Industries, INC. Keystone | Sand Springs | — | ◇ UNVERIFIED |
| AIAlpha Investment Castings | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| OSOKC - Southwest Tube | Sand Springs | 100–499 | ◐ LIKELY ACTIVE |
| PMPRL Manufacturing | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| SSSaber Steel, LLC | Tulsa | 1–19 | ◐ LIKELY ACTIVE |
| SWSouthwestern Wire, Inc. Tulsa | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| AUArmor Up, LLC | Tulsa | — | ◇ UNVERIFIED |
| BABroken Arrow Aluminum | Broken Arrow | — | ◇ UNVERIFIED |
| CICastings Investment and Alloy Foundries | Bixby | — | ◇ UNVERIFIED |
| FOFormer Okie Chem | Tulsa | — | ◇ UNVERIFIED |
| FEFruitstand Enterprises INC. Dba Greenway Recycling Services | Tulsa | — | ◇ UNVERIFIED |
| GSGerdau-sand Springs Rail Product | Sand Springs | — | ◇ UNVERIFIED |
| WIWord Industries Fabrication, LLC | Tulsa | — | ◇ UNVERIFIED |
