| EFEureka Foundry Company | Chattanooga | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CFClarksville Foundry, INC. | Clarksville | TN | Primary Metal Manufacturing331511 | 20-99 | ◇ UNVERIFIED |
| EAEngineered Alloys LLC | Chattanooga | TN | Primary Metal Manufacturing331110 | 1-19 | ◇ UNVERIFIED |
| ACAccu Cast Operations | Chattanooga | TN | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| ATAcupowder Tn LLC | Greenback | TN | Primary Metal Manufacturing331423 | — | ◇ UNVERIFIED |
| AAAlchem Aluminum Shelbyville, INC. | Shelbyville | TN | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| ABAlcoa Business Park, LLC | Alcoa | TN | Primary Metal Manufacturing331313 | — | ◇ UNVERIFIED |
| AEAlcoa Engineered Products | Elizabethton | TN | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| AIAlcoa INC - West Plant | Alcoa | TN | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| AUArconic U.s., Llc, South Plant | Alcoa | TN | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| BABonnell Aluminum, INC. | Carthage | TN | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| BGBurns Gauge & Machine, INC | Burns | TN | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| CCCamden Casting Center INC | Camden | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CRClinch River Casting INC. | Caryville | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
 Contech Engineered Solutions, LLC | Englewood | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CACooper-standard Automotive | Surgoinsville | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DPDavis Pipe INC. | Blountville | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel US INC. | Jackson | TN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| GUGladeville Utility District-2 Wells | Jackson | TN | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| GCGreeneville Casting Incorporated | Greeneville | TN | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| JEJabil Environmental Technologies - Suite 152 | Memphis | TN | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| JBJohn Bouchard & Sons (closed) | Nashville | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| LJLock Joint Tube - Tennessee | Chattanooga | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MIMetaltek International Southern Centrifugal Div | Chattanooga | TN | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
| NLNiagara Lasalle Corporation | Chattanooga | TN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| PRPathway Richland Division | Pulaski | TN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| PMPerfection Molders | Goodlettsville | TN | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| PAPioneer Air Systems INC | Wartburg | TN | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| PPPipe Properties, LLC and Gateway View, LLC | Chattanooga | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| RCRacran Corporation | Mount Pleasant | TN | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| RMRefined Metals | Memphis | TN | Primary Metal Manufacturing331423 | — | ◇ UNVERIFIED |
| SRSa Recycling - Knoxville Central F.k.a. Psc Metals, INC. | Knoxville | TN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| SIScepter INC | Midway | TN | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| TSTri Star Aluminum Company, L.p. | Alexandria | TN | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| UIUnited Industries | Selmer | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| URUnitrac Railroad Materials INC. | Knoxville | TN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
 Wright Industries, a Doerfer CO. | Nashville | TN | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| BZBefesa Zinc US INC. | Rockwood | TN | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| BMBr Metal Products INC | Livingston | TN | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
| CPChattanooga Pattern and Foundry, INC. | Chattanooga | TN | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
| CSCustom Sheet & Metal Fabricators LLC | Chattanooga | TN | Primary Metal Manufacturing331221 | 1-19 | ◇ UNVERIFIED |
| SISouthern Investment Casting CO | Blountville | TN | Primary Metal Manufacturing331512 | 1-19 | ◇ UNVERIFIED |
| AMActivated Metals & Chemicals Incorporated | Sevierville | TN | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| AWAfl Wire Products Dixie Wire | Nashville | TN | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| AFA F L Wire Products-morrow Road | Nashville | TN | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| AMApplied Machining, Incorporated | Oak Ridge | TN | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| AIArconic Inc., North Plant | Alcoa | TN | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| BABodine Aluminum INC | Jackson | TN | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| CCCamden Casting Center INC | Camden | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CSCargill Steel & Wire (closed) | Nashville | TN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
