| NFNuclear Fuel Services INC | Erwin | TN | Chemical Manufacturing325180 | 500+ | ▲ REPORTED CLOSED |
| TTTn Tennessee Llc, Erwin Plant | Erwin | TN | Fabricated Metal Product Manufacturing332991 | — | ◐ LIKELY ACTIVE |
| PUPolyPipe USA | Erwin | TN | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| IPImpact Plastics, INC. | Erwin | TN | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◇ UNVERIFIED |
| TATennessee Abrasive INC. | Erwin | TN | Nonmetallic Mineral Product Manufacturing327910 | 1-19 | ◇ UNVERIFIED |
| SISummers-taylor INC. - Unicoi County (erwin) Concrete Plant | Erwin | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| FPFoam Products | Erwin | TN | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| RBRegal Beloit America, INC. Dba Shallow Ford | Erwin | TN | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| RDRegal-beloit Dba Riverview | Erwin | TN | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| STSwift Textiles INC | Erwin | NC | Textile Mills313210 | — | ◇ UNVERIFIED |
| DMDuncan Mechanical, INC | Erwin | TN | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| FPFoam Products Erwin | Erwin | TN | Plastics and Rubber Products Manufacturing326150 | 1-19 | ◐ LIKELY ACTIVE |
| DHDennis Hensley D/b/a Pallet & Crate Mfg | Erwin | TN | Wood Product Manufacturing321920 | 1-19 | ◇ UNVERIFIED |
| BWBilly's Welding and Repair Service, INC. | Erwin | NC | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BMBRACKINS MACHINE SHOP,LLC, a Tennessee Limited Liability Company | Erwin | TN | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CMCorning Manufacturing Support | Erwin | NY | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| EMErwin Manufacturing Complex | Erwin | NY | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| EMErwin Modular Structures LLC | Erwin | TN | Wood Product Manufacturing321991 | — | ◇ UNVERIFIED |