| BABeech Aircraft- Inactive | Longmont, CO | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| BOBerthoud Oil CO | Longmont, CO | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| BIBestop, INC. | Louisville, CO | Textile Product Mills314912 | — | ◇ UNVERIFIED |
| BFBloomin Flower Cards | Boulder, CO | Paper Manufacturing322231 | — | ◇ UNVERIFIED |
| BBoomerang | Longmont, CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| BBBootstrap Brewing Company LLC | Longmont, CO | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BBBoulder Blimp | Boulder, CO | Textile Mills313210 | — | ◇ UNVERIFIED |
| BBBoulder Brewing CO | Boulder, CO | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BCBoulder Climbing Company | Boulder, CO | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| BEBoulder Electric Motor CO | Boulder, CO | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| BVBoulder Valley Oil | Lafayette, CO | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| BDBreaking Dads Distillers LLC | Longmont, CO | Beverage and Tobacco Product Manufacturing312140 | — | ◇ UNVERIFIED |
| BRButton Rock Bakery, LLC | Lafayette, CO | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| BIByers Industries, INC. | Longmont, CO | Machinery Manufacturing333220 | — | ◇ UNVERIFIED |
| COCdm Optics INC | Boulder, CO | Machinery Manufacturing333314 | — | ◇ UNVERIFIED |
| CSCdm Signs | Longmont, CO | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| CCCemex Construction Materials - Lyons | Lyons Area, CO | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| CPCentury Plastics & Engineering INC | Longmont, CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| COChevron-thomas Oil | Boulder, CO | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| CLChocolaterie Limited | Lafayette, CO | Food Manufacturing311352 | — | ◇ UNVERIFIED |
| CGCircle Graphics- Circle Visual | Boulder, CO | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| CWCircuits West LLC | Longmont, CO | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| COCity Oil-chevron | Longmont, CO | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| CLClavusGroup LLC | Niwot, CO | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| CDCoalesce Design and Fabrication | Boulder, CO | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| CMColorado Mechanical Systems INC | Longmont, CO | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| CRColorado Roller & Wheel | Lafayette, CO | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| CPColumbine Plastics Corporation | Louisville, CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CTComplex Tooling & Molding INC | Boulder, CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CPComputer Products Tecnetics | Boulder, CO | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| CPConner Peripherals | Longmont, CO | Computer and Electronic Product Manufacturing334112 | — | ◇ UNVERIFIED |
| CEContinental Electrical Tools LLC | Boulder, CO | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| CPCorden Pharma - Sterling Drive | Boulder, CO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| CPCreative Plastics | Longmont, CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CMCrescent Moon Snowshoe Company | Boulder, CO | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| DMDecent Market, LLC | Nederland, CO | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| DDDerpy Dragon Studios | Boulder, CO | Furniture and Related Product Manufacturing337121 | — | ◇ UNVERIFIED |
| DPDesign Press INC | Boulder, CO | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| DPDtm Products INC | Minot, CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| EDEight Days a Week Copy | Boulder, CO | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| EPElder Pens, LLC | Longmont, CO | Furniture and Related Product Manufacturing337212 | — | ◇ UNVERIFIED |
| EIEmergy INC Dba Meati Foods | Boulder, CO | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| EKEmmapie's Kitchen LLC | Boulder, CO | Food Manufacturing311821 | — | ◇ UNVERIFIED |
| EEmtek | Longmont, CO | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| EMEnvironmental Materials LLC | Superior, CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ELExtract Labs | Boulder, CO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| ELExtract Labs INC Headquarters | Lafayette, CO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| FTFlavor Train LLC | Boulder, CO | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| FCFlying Colors INC | Longmont, CO | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| GBGelato Boy | Boulder, CO | Food Manufacturing311520 | — | ◇ UNVERIFIED |
