 Heritage Die Casting Company, INC. | Denver | CO | Primary Metal Manufacturing331523 | 1-19 | ● ACTIVE |
| ZMZimmerman Metals INC | Denver | CO | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| KMKalas Manufacturing INC Plant 1 | Denver | PA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| KMKalas Manufacturing Plant 2 | Denver | PA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| MHMile Hi Metal Foundry | Denver | CO | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ADAccu-Tube - Denver | Denver | CO | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
 Acme Manufacturing CO | Denver | CO | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| KMKalas Manufacturing Plant 3 | Denver | PA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
 Acme Foundry INC | Denver | CO | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| AMAtlas Metal & Iron CORP | Denver | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| AMAtlas Metals & Iron CORP | Denver | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| IMIron & Metals INC | Denver | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| KCKalas Corporate Center - KC | Denver | PA | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| KPKalas Plant 2 - K2 | Denver | PA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| DLDualDraw, LLC | Denver | CO | Primary Metal Manufacturing331314 | 1-19 | ◇ UNVERIFIED |
| 6S6800 Stapleton, LLC | Denver | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| QBQuanex Building Products | Denver | CO | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| RIRoper Industries INC | Denver | CO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| W6West 62nd Ave Holdings LLC | Denver | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
