| TPTrinity Plastics | Pueblo Dep Ac | 20–99 | ◐ LIKELY ACTIVE |
| WWestminster | Westminster | 1–19 | ◐ LIKELY ACTIVE |
| ATAdvanced Tooling Concepts | Longmont | — | ◇ UNVERIFIED |
| ATAdvance Tooling Concepts Pratt Pkwy | Longmont | — | ◇ UNVERIFIED |
| AIAgfinity INC. - 16th Street Plaza | Greeley | — | ◇ UNVERIFIED |
| APAltratek Plastics, INC. | Longmont | — | ◇ UNVERIFIED |
| AVAmerican Variseal CORP | Broomfield | — | ◇ UNVERIFIED |
| AMArk Molding INC. | Denver | — | ◇ UNVERIFIED |
| AIAtlantic International, LLC | Boulder | — | ◇ UNVERIFIED |
| AEAvedon Engineering, INC. | Longmont | — | ◇ UNVERIFIED |
| APAvid Product Development LLC | Loveland | — | ◇ UNVERIFIED |
| APAvid Product Development LLC | Loveland | — | ◇ UNVERIFIED |
| BIBlack Iron Retreading | Denver | — | ◇ UNVERIFIED |
| BRB.l.v. Retreaders (out of Business 94) | Henderson | — | ◇ UNVERIFIED |
| BBoomerang | Longmont | — | ◇ UNVERIFIED |
| BUBottles Unlimited, INC. | Denver | — | ◇ UNVERIFIED |
| BRBrad Ragan INC | Aurora | — | ◇ UNVERIFIED |
| CCCarpenter Company INC | Denver | — | ◇ UNVERIFIED |
| CACem and Associates / Flow Pro | Berthoud | — | ◇ UNVERIFIED |
| CPCentury Plastics & Engineering INC | Longmont | — | ◇ UNVERIFIED |
| CMC.f. Maier Composites, INC. | Golden | — | ◇ UNVERIFIED |
| CTCobre Tires & Service | Denver | — | ◇ UNVERIFIED |
| CPColorado Precision Mold, INC. | Golden | — | ◇ UNVERIFIED |
| CRColorado Roller & Wheel | Lafayette | — | ◇ UNVERIFIED |
| CPColumbine Plastics Corporation | Louisville | — | ◇ UNVERIFIED |
| CTComplex Tooling & Molding INC | Boulder | — | ◇ UNVERIFIED |
| CCConsolidated Container Company | Denver | — | ◇ UNVERIFIED |
| CIContainer Industries INC | Denver | — | ◇ UNVERIFIED |
| CFCreative Foam Composite Systems, LLC | Berthoud | — | ◇ UNVERIFIED |
| CPCreative Plastics | Longmont | — | ◇ UNVERIFIED |
| DIDawn Industries, INC. | Arvada | — | ◇ UNVERIFIED |
| DPDenver Plastics Colorado | Hudson | — | ◇ UNVERIFIED |
| DPDtm Products INC | Minot | — | ◇ UNVERIFIED |
| FRFront Range Stone | Englewood | — | ◇ UNVERIFIED |
| GTGates Tire CO (deleted) | Denver | — | ◇ UNVERIFIED |
| GLGbr LLC | Wellington | — | ◇ UNVERIFIED |
| GEGlobal Environmental Technology, LLC | Englewood | — | ◇ UNVERIFIED |
| HIHeadway Ind INC | Lakewood | — | ◇ UNVERIFIED |
| HIHisarmco, INC. | Longmont | — | ◇ UNVERIFIED |
| HIHoseco INC | Wheat Ridge | — | ◇ UNVERIFIED |
 International Packaging, INC. | Colorado Springs | — | ◇ UNVERIFIED |
| IEIrwin Enterprises, INC. | Lafayette | — | ◇ UNVERIFIED |
| JRJim Rushton's Incorporated | Denver | — | ◇ UNVERIFIED |
| JIJvr INC Or Jim Paris Tire | Denver | — | ◇ UNVERIFIED |
| KIKennard Industries, INC | Castle Rock | — | ◇ UNVERIFIED |
| LTLawrence Tool CO | Denver | — | ◇ UNVERIFIED |
| MPMaccourt Products INC | Denver | — | ◇ UNVERIFIED |
| MSMccutchen Skywheels CORP | Broomfield | — | ◇ UNVERIFIED |
| MAMid America Engineering & Fabrication CO | Fort Lupton | — | ◇ UNVERIFIED |
| MMMountain Molding LTD. | Hwy66 0.3 Mi of | — | ◇ UNVERIFIED |
