| MHMile Hi Metal Foundry | Denver | CO | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| WFWinner Foundries & Mfg CO | Arvada | CO | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
 Acme Foundry INC | Denver | CO | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ASAndersen's Sales & Salvage INC | Greeley | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| AMAtlas Metal & Iron CORP | Denver | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| AMAtlas Metals & Iron CORP | Denver | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| CLChuck Lorentz | Montrose | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| CSConsolidated Steel Svc | Englewood | CO | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| DWDavis Wire Pueblo CORP. | Pueblo | CO | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| EIElectrasteel INC | Boulder | CO | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ELElectron Littleton | Littleton | CO | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FFFountain Foundry Dba F F Acquisition CO | Pueblo | CO | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GFGenesis Fixtures Incorporated | Fort Collins | CO | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| HGHydro Gate Acquisition Corporation | Commerce City | CO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| IMIron & Metals INC | Denver | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| KCKloppenberg & CO | Sheridan | CO | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| MTMercury Tube - 3211 W Bear Creek Dr | Englewood | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| NINorgren INC | Littleton | CO | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| RBRicker Bartlett INC. (dba) Colorado Castings | Estes Park | CO | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| RMRosedale Marketing Dba Port-a Stall | Erie | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| SASilver Anvil Engineering Corporation | Golden | CO | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| SVSuper Vacuum Mfg CO INC | Loveland | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| DLDualDraw, LLC | Denver | CO | Primary Metal Manufacturing331314 | 1-19 | ◇ UNVERIFIED |
| MRMonarch Residential Vaults & Ironworks LLC | Durango | CO | Primary Metal Manufacturing331111 | 1-19 | ◇ UNVERIFIED |
| 6S6800 Stapleton, LLC | Denver | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AIAmerican Iron & Metal CO. INC. | Fowler | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| ADAnderson Die Casting, LLC | Englewood | CO | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| ACApex Consulting | Thornton | CO | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BFBlue Fabrication INC | Delta | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CPClimax Performance Material | Golden | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| EBElectra Beta LLC | Broomfield | CO | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| FCFreeport-mcmoran Copper & Gold | Salida | CO | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| GSGold Star Holdings LLC | Byers | CO | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| HRHarris Rebar Salt Lake INC | Commerce City | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| HCHarsco Corporation | Pueblo | CO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| IWIndustrial Welding & Fabrications LLC | Pueblo | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| JAJoseph's Artworks, INC. | Englewood | CO | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| LFLb Foster Company- Arp Plant | Pueblo | CO | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MAMad Acres LLC | Morrison | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| PPParallel Products of Colorado | Greeley | CO | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| PCPeak Collision 2 | Littleton | CO | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PPmr | Englewood | CO | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| PMPrecious Metal Refiners, INC. | Englewood | CO | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| PCPrototype Castings INC. | Commerce City | CO | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| QBQuanex Building Products | Denver | CO | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| RBRicker Bartlett INC. (dba) Col Orado Castings | Loveland | CO | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| RMRocky Mountain Rebar | Delta | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| RIRoper Industries INC | Denver | CO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
 Skyline Steel | Canon City | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
 Springs Fabrication, INC | Loveland | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
