| 3H3 Hundred Days Distilling | Monument | CO | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ● ACTIVE |
| 3J3 J INC | Wellington | CO | Fabricated Metal Product Manufacturing332710 | 1-19 | ● ACTIVE |
| 4R4N Riderco, LLC | Greeley | CO | Printing and Related Support Activities323113 | 20-99 | ● ACTIVE |
Ability Composites, LLC | Loveland | CO | Plastics and Rubber Products Manufacturing326130 | — | ● ACTIVE |
| ATAccu-precision Tool & Gauge CO LLC | Littleton | CO | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
Accurate Gasket & Stamping, INC. | Englewood | CO | Miscellaneous Manufacturing339991 | 1-19 | ● ACTIVE |
Acertara Acoustic Laboratories, LLC | Longmont | CO | Computer and Electronic Product Manufacturing334510 | 20-99 | ● ACTIVE |
Actall Corporation | Denver | CO | Electrical Equipment, Appliance & Component Manufacturing335999 | 1-19 | ● ACTIVE |
Action Industries, INC. | Arvada | CO | Fabricated Metal Product Manufacturing332710 | 1-19 | ● ACTIVE |
| AAAdvanced Assembly, LLC | Aurora | CO | Computer and Electronic Product Manufacturing334418 | — | ● ACTIVE |
Advanced Energy Industries INC | Fort Collins | CO | Computer and Electronic Product Manufacturing334413 | — | ● ACTIVE |
Advanced Impressions, INC | Colorado Springs | CO | Printing and Related Support Activities323113 | 1-19 | ● ACTIVE |
Advanced Machining of Longmont, INC. | Longmont | CO | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
Advanced Manufacturing Technology for Bottles, INC. | Loveland | CO | Machinery Manufacturing333922 | 20-99 | ● ACTIVE |
Advanced Surface Technologies, INC. | Arvada | CO | Fabricated Metal Product Manufacturing332813 | 20-99 | ● ACTIVE |
| ATAdvance Tank and Construction CO. | Wellington | CO | Fabricated Metal Product Manufacturing332420 | 100-499 | ● ACTIVE |
Advantage Manufacturing of Colorado Springs, LLC | Colorado Springs | CO | Fabricated Metal Product Manufacturing332322 | 20-99 | ● ACTIVE |
| AHAir Harness Manufacturing, INC. | Fort Lupton | CO | Transportation Equipment Manufacturing336320 | 1-19 | ● ACTIVE |
| ASAir Squared | Thornton | CO | Machinery Manufacturing333912 | 100-499 | ● ACTIVE |
| AMAlan Manes Machine, INC | Fort Collins | CO | Fabricated Metal Product Manufacturing332710 | 100-499 | ● ACTIVE |
Alder Energy, LLC | Louisville | CO | Chemical Manufacturing325194 | — | ● ACTIVE |
Alio Industries, LLC | Arvada | CO | Machinery Manufacturing333248 | 1-19 | ● ACTIVE |
Allen Scientific Glass INC | Erie | CO | Nonmetallic Mineral Product Manufacturing327215 | 1-19 | ● ACTIVE |
Allied Technology, LLC | Broomfield | CO | Machinery Manufacturing333993 | 1-19 | ● ACTIVE |
Allosource | Centennial | CO | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
Alpine Artisan Studios, LLC | Denver | CO | Miscellaneous Manufacturing339999 | 1-19 | ● ACTIVE |
Alpine Research Optics, LLC | Boulder | CO | Machinery Manufacturing333310 | — | ● ACTIVE |
American 3d Printing, LLC | Evergreen | CO | Miscellaneous Manufacturing339999 | 1-19 | ● ACTIVE |
American Outdoor Products, INC | Boulder | CO | Food Manufacturing311423 | 20-99 | ● ACTIVE |
| ATAmerican Target CO | Denver | CO | Printing and Related Support Activities323111 | 1-19 | ● ACTIVE |
A & M Labs, INC. | Commerce City | CO | Miscellaneous Manufacturing339112 | 20-99 | ● ACTIVE |
| ACArc Colorado, INC | Longmont | CO | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |
| AMArdent Mills LLC | Denver | CO | Food Manufacturing311211 | — | ● ACTIVE |
Armite Laboratories INC | Lafayette | CO | Petroleum and Coal Products Manufacturing324191 | 1-19 | ● ACTIVE |
Arq, INC. | Greenwood Village | CO | Chemical Manufacturing325998 | 100-499 | ● ACTIVE |
| ARA R Wilfley & Sons INC | Commerce City | CO | Machinery Manufacturing333911 | 20-99 | ● ACTIVE |
| ASAscent Solar Technologies, INC. | Thornton | CO | Computer and Electronic Product Manufacturing334413 | 20-99 | ● ACTIVE |
Aspen Seating LLC | Littleton | CO | Miscellaneous Manufacturing339113 | 20-99 | ● ACTIVE |
| ATAssociated Thermoforming INC | Berthoud | CO | Chemical Manufacturing325211 | 20-99 | ● ACTIVE |
Avalanche Sign Contracting, LLC | Colorado Springs | CO | Miscellaneous Manufacturing339950 | 1-19 | ● ACTIVE |
| AAAxe and the Oak Distillery LLC | Colorado Springs | CO | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ● ACTIVE |
Axis Manufacturing Co., LTD. | Colorado Springs | CO | Fabricated Metal Product Manufacturing332710 | 1-19 | ● ACTIVE |
B12 Marketing, INC | Bailey | CO | Printing and Related Support Activities323111 | 1-19 | ● ACTIVE |
Band-it-idex, INC. | Denver | CO | Fabricated Metal Product Manufacturing332119 | 100-499 | ● ACTIVE |
Barber-nichols, LLC | Arvada | CO | Machinery Manufacturing333611 | 100-499 | ● ACTIVE |
| BSBest Sign Systems INC | Montrose | CO | Miscellaneous Manufacturing339950 | 20-99 | ● ACTIVE |
| BCBestway Concrete CO - Denver | Denver | CO | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ● ACTIVE |
Biochar Now, LLC | Loveland | CO | Electrical Equipment, Appliance & Component Manufacturing335991 | 1-19 | ● ACTIVE |
Blue Canyon Technologies LLC | Lafayette | CO | Computer and Electronic Product Manufacturing334220 | — | ● ACTIVE |
| BWBonacquisti Wine Company | Denver | CO | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ● ACTIVE |