| CIColorado Industrial Painting INC | Denver | CO | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CLColorado Label and Packaging | Denver | CO | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| CPColorado Paint CO - 4747 Holly Street | Denver | CO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CPColorado Petroleum, INC | Denver | CO | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| CPColorado Pride LLC | Lamar | CO | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CSColorado Sign Company | Englewood | CO | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| CTColorado Timber Resources, LLC | Hot Sulphur Springs 4.7 Mi. W | CO | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| CCColumbine Copy and Printing | Englewood | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CCColumbine Copy & Printing | Englewood | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CPColumbine Plastic CORP | Boulder | CO | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| CTComplex Tooling & Molding INC | Boulder | CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CTComposite Tek | Boulder | CO | Electrical Equipment, Appliance & Component Manufacturing335991 | — | ◇ UNVERIFIED |
| CFConagra Foods | Longmont | CO | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| CFConagra Foods - Florence St Bakery | Denver | CO | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| CFConagra Foods Packaged Foods - Aurora | Aurora | CO | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| CWConcrete Works of Colorado - Port Plant | Lafayette | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CWConcrete Works of CO - Port. Conc. Batch | Monte Vista Area | CO | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CEConfluence Energy, LLC - Kremmling Plant | Kremmling | CO | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| CRConnell Resources | Fort Collins | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CRConnell Resources- Portable Asphalt Plnt | Craig Area | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CRConnell Resources - Tinmath Connell Pit | Fort Collins Area | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CSConsolidated Steel Svc | Englewood | CO | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CCContemporary Commercial Cabinetry, INC. | Colorado Springs | CO | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| CCContinental Conveyor & Equipment CO | Pueblo | CO | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| CBCooper B-line | Aurora | CO | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CCCoorstek - Ceramics | Colorado Springs | CO | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CGCoorstek - Grand Junction Operations | Grand Junction | CO | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| CICoorstek, Inc.- South Table Mountain | Golden | CO | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CSCopeland Supply Company, LLC | Fruita | CO | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CPCorrectional Products & Svcs | Westminster | CO | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| CCCotter Corp-cancelled 12/05/01 | Canon City | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CSCottonwood Sciences | Crested Butte | CO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| CECoulson Ex. - Brownwood/gardels Pits | Loveland | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CECoulson Excavating Company INC | Loveland | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CPCrawford Printing Ink INC | Denver | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CCCrossland Cabinetry INC | Fort Collins | CO | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CACrown Asphalt Products CO (was Petro) | Fruita | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CPCrystal Packaging, INC. - 5185 National | Denver | CO | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CMCurrent Media Group - Woodmen | Colorado Springs | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CUCurrent USA INC - Stone | Colorado Springs | CO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CBCustom Building Products - Denc | Berkley | CO | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CHCwb Holdings - Charlotte's Web | Louisville | CO | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| CHCwb Holdings INC - Boulder Facility | Boulder | CO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| CECw Elaborations | Denver | CO | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| CLCwka LLC - Cwka Longmont | Longmont | CO | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| CMCyclo Manufacturing CO | Denver | CO | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| DDDanielson Designs LTD. | Trinidad | CO | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| DIDarling Ingredients INC. - 5701 York St | Denver | CO | Food Manufacturing311613 | — | ◇ UNVERIFIED |
| DDData Documents | Denver | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| DFDave's Flow Measurement, LLC | Fort Collins | CO | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
