| BABerthoud Anodizing INC. | Berthoud | CO | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| BIBestop INC | Broomfield | CO | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| BCBestway Concrete CO - Brighton | Brighton | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BCBestway Concrete CO Firestien Pit | Greeley | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BCBestway Concrete - the Shores | Firestone | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BLBestway - Lippman 4800cc 200607115 | Arvada Area | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BWBest Way Printing | Denver | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| BRBg Retail - Redfield Rifle Scopes Bldg | Denver | CO | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| BPBig Papa Stophs, INC | Brighton | CO | Food Manufacturing311211 | — | ◇ UNVERIFIED |
| BRBig R Manufacturing LLC | Greeley | CO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BRBig R Mfg LLC Dba Big R Bridge | Greeley | CO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BNBiochar Now, LLC - Berthoud Plant | Berthoud | CO | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| BNBiochar Now, LLC - Port Biochar Equip | Berthoud | CO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BABip a Subsidiary of Industrialex Mfg | Westminster | CO | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| BOBison Oil Well Cementing-109 N 6th Ave | Greeley | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BLBlaze LLC | Denver | CO | Food Manufacturing311352 | — | ◇ UNVERIFIED |
| BFBlue Flame Services, LLC | Denver | CO | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| BCBoeing Company-3800 Lewiston Generator | Aurora | CO | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| BCBoulder Cty - Veg Flood Debris Mgmt Site | Boulder Area | CO | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| BEBoulder Elec Motor CO | Boulder | CO | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| BSBoulder Scientific CO | Hudson Area | CO | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| BLBpi-westminster, Llc(owner)/arcadis (op) | Denver | CO | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| BRBrannan Ready Mix Company | Denver | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BSBrannan Sand & Gravel | Denver | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BSBrannan Sand & Gravel - I-76 Apm | Commerce City Area | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BABrasier Asphalt | Walden 11.8 Mi. Sw of | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BFBridgestone Firestone INC | Colorado Springs | CO | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| BSBR Sports Inc | Littleton | CO | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| BCBrush Cleaners & Laundromat | Brush | CO | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| BPBurdick Paving CO. (cat 3412 Genset) | Roosevelt, Ut | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BPBurdick Paving CO. (cedarapids Abp) | Rangely Area | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BCBurnco Colorado - East Greeley Plant | Kersey | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| BCBurnco Colorado - Ft. Lupton Plant | Fort Lupton Area | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BCBurnco Colorado - Portable Screen/engine | Buena Vista | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BCBurnco Colorado - Portable Screen/engine | Henderson | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BSBurning Systems, INC | Pueblo | CO | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| BCBurris Company Incorporated | Greeley | CO | Machinery Manufacturing333314 | — | ◇ UNVERIFIED |
| CPC2imaging - Printing Facility | Englewood | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CCCactus Coatings INC | Grand Junction | CO | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| CTCain T Square | Greenwood Village | CO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CCCamas Colorado Incorporated Bestway Paving Division | Greeley | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CICameron International Corporation | Grand Junction | CO | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| CICameron International - Us1725 | Wellington | CO | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| CICannontech Industries LTD | Denver | CO | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| CGCanopy Growth Corporation USA LLC | Evergreen | CO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| CGCapitol Glass & Aluminum CORP | Aurora | CO | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| CICaraustar Industries INC. | Denver | CO | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| CCCarder Concrete Products Company | Brighton | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICardinal Indl Finishes INC | Denver | CO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CICargill, INC. | Denver | CO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
