| ALAmlc, LLC | Longmont | — | ◇ UNVERIFIED |
| ADAnderson Die Casting, LLC | Denver | — | ◇ UNVERIFIED |
| AMAntique Metal Fab INC | Denver | — | ◇ UNVERIFIED |
| AGAnton Giles Partnership LLC | Denver | — | ◇ UNVERIFIED |
| AMArapahoe Metal Treating | Englewood | — | ◇ UNVERIFIED |
| ACArmadillo Coating Systems | Fort Collins | — | ◇ UNVERIFIED |
| ASArmstrong Steel Corporation | Englewood | — | ◇ UNVERIFIED |
| ARAspen Ridge Business Park, LLC | Lafayette | — | ◇ UNVERIFIED |
| AWAspen Welding LLC | Rifle | — | ◇ UNVERIFIED |
| AFAssociated Finishers | Hygiene | — | ◇ UNVERIFIED |
| ALAzidoc, LLC | Centennial | — | ◇ UNVERIFIED |
| BMBall Metal Beverage Container Corporation | Westminster | — | ◇ UNVERIFIED |
| BEBarth Enterprises, INC. | Greeley | — | ◇ UNVERIFIED |
| BLBarton Leasing, INC. | Aurora | — | ◇ UNVERIFIED |
| BMBarton Mfg CO | Denver | — | ◇ UNVERIFIED |
| BIBaski, INC. | Englewood | — | ◇ UNVERIFIED |
| BFBCS Fabrication | Loveland | — | ◇ UNVERIFIED |
| BJBee Jay Iron INC | Englewood | — | ◇ UNVERIFIED |
| BPBel Pro Products | Arvada | — | ◇ UNVERIFIED |
| BMBennett Mfg & Supply CO | Colorado Springs | — | ◇ UNVERIFIED |
| BWBentley Welding, INC - 612 Paint Booth | Greeley | — | ◇ UNVERIFIED |
| BMBlueprint Manufacturing Inc | Denver | — | ◇ UNVERIFIED |
| BSBrazz Specialties, Inc. | Commerce City | — | ◇ UNVERIFIED |
| BPBredro Price CO | Fort Collins | — | ◇ UNVERIFIED |
| BSBristlecone Shooting | Lakewood | — | ◇ UNVERIFIED |
| BSBrown-strauss Steel | Aurora | — | ◇ UNVERIFIED |
| CSCadet Sheet Metal, INC. | Denver | — | ◇ UNVERIFIED |
| CICameron International | Grand Junction | — | ◇ UNVERIFIED |
| CWCart Works Company, INC. | Denver | — | ◇ UNVERIFIED |
| CCC & C Manufacturing CORP. | Englewood | — | ◇ UNVERIFIED |
| CDC & D Metal Products, INC. | Thornton | — | ◇ UNVERIFIED |
| CSCfg Systems INC Dba Concelafab Corporation | Colorado Springs | — | ◇ UNVERIFIED |
 Chandler Industries, INC. | Littleton | — | ◇ UNVERIFIED |
| CMChi Manufacturing, INC. | Englewood | — | ◇ UNVERIFIED |
| CPCic Precision Machining | Golden | — | ◇ UNVERIFIED |
| CMClassic Metals | Denver | — | ◇ UNVERIFIED |
| CSClean Strip | Englewood | — | ◇ UNVERIFIED |
| CSClock Spring / Nri | Centennial | — | ◇ UNVERIFIED |
| CDCoalesce Design and Fabrication | Boulder | — | ◇ UNVERIFIED |
| CSCogswell & Spacely Land Co., LTD | Colorado Springs | — | ◇ UNVERIFIED |
| CSCogswell & Spacely Land Co., LTD | Colorado Springs | — | ◇ UNVERIFIED |
| CCCole CNC LLC | Fort Morgan | — | ◇ UNVERIFIED |
| CBColorado Basic Elements, LLC | Fort Collins | — | ◇ UNVERIFIED |
| CFColorado Forge CORP | Colorado Springs | — | ◇ UNVERIFIED |
| CMColorado Metal Finishing | Colorado Springs | — | ◇ UNVERIFIED |
| CPColorado Powder Coating | Commerce City | — | ◇ UNVERIFIED |
| CPColorado Precision Machining | Arvada | — | ◇ UNVERIFIED |
| CCColumbia Chrome Ind LTD | Durango | — | ◇ UNVERIFIED |
| CSCopeland Supply Company, LLC | Fruita | — | ◇ UNVERIFIED |
| CWCreative Welding & Fabrication LLC | Fort Collins | — | ◇ UNVERIFIED |
