| Company | City | Service Type | Products |
| AAE Solar | Superior | Commercial, | Solar Electric (pv), |
| AC Solar | Florence | Residential, | Solar Electric (pv), |
| Active Energies. | Avon | Residential, | Solar Electric (pv), |
| Adobe Solar | Denver | Residential, | Solar Electric (pv), |
| Affordable Alternative Energy | Louisville | Residential, | Solar Electric (pv), |
| All Solar Inc. | Penrose | Residential, | Solar Electric (pv), |
| Allnuenergy Inc | Lakewood | Residential, | Solar Electric (pv), |
| Alpine Solar Design | Silverthorne | Residential, | Solar Electric (pv), |
| Alternative Choices Solar | Florence | Residential, | Solar Electric (pv), |
| Alternative Power Enterprises | Ridgway | Residential, | Solar Electric (pv), |
| American Plumbing Heating & Solar | Avon | Residential, | Solar Electric (pv), |
| Anasazi Solar | Montrose | Residential, | Solar Electric (pv), |
| Aqua Care Solar | Boulder | Residential, ,Commercial, | Solar Electric (pv), Solar Hot Water (thermal), Solar Pool Heating, |
| Aquatic Art, Inc. | Highlands Ranch | Residential, | Solar Electric (pv), |
| Arise Energy Solutions | Littleton | Residential, | Solar Electric (pv), |
| Arosa Solar | Evergreen | Residential, | Solar Electric (pv), |
| Aspen Solar | Aspen | Residential, ,Commercial, | Solar Electric (pv), Solar Hot Water (thermal), Solar Pool Heating, |
| Atlasta Solar Center | Grand Junction | Residential, ,Commercial, | Solar Electric (pv), Solar Hot Water (thermal), |
| Be Utility Free | Fort Lupton | Residential, | Solar Electric (pv), |
| Beaver Solar | Centennial | Residential, | Solar Electric (pv), |
| Bella Energy | Lousiville | Residential, | Solar Electric (pv), |
| BeUtilityFree, Inc. | Fort Lupton | Residential, ,Commercial, | Solar Electric (pv), |
| Buglet Solar | Golden | Residential, | Solar Electric (pv), |
| Burdick Technologies Unlimited | Lakewood | Residential, | Solar Electric (pv), |
| Burnham & Sun | Fort Collins | Residential, Commercial, | Solar Electric (pv), |
| Burnham-Beck & Sun | Fort Collins | Residential, | Solar Electric (pv), |
| CanWest Solar | Denver | Residential, | Solar Electric (pv), |
| Capitol Solar Energy | Castle Rock | Residential, | Solar Electric (pv), Solar Hot Water (thermal), |
| CCS Solar | Highlands Ranch | Residential, | Solar Electric (pv), |
| Coffman Electric, Inc. | Wheat Ridge | Residential, | Solar Electric (pv), |
| Colorado Electric Inc | Basalt | Residential, | Solar Electric (pv), |
| Colorado Solar | New Castle | Residential, | Solar Electric (pv), |
| Complete Energy Solutions | Arvada | Residential, ,Commercial, ,Utilities, ,Municipal, | Solar Electric (pv), |
| Complete Energy Solutions, LLC | Arvada | Residential, | Solar Electric (pv), |
| Concept Solar Co. | Palisade | Residential, | Solar Electric (pv), |
| Current Installations | Golden | Commercial, | Solar Electric (pv), |
| Eastern Plains Solar and Wind | Bennett | Residential, | Solar Electric (pv), |
| Echelon Energy | Boulder | Residential, | Solar Electric (pv), |
| Eco Depot USA | Salida | Residential, | Solar Electric (pv), |
| EcoStruct HOT | Beulah | Residential, | Solar Electric (pv), |
| El Paso Green Energies, LLC | Colorado Springs | Residential, ,Commercial, ,Municipal, | Solar Electric (pv), |
| Emerald Mountain Energy | Steamboat Springs | Residential, | Solar Electric (pv), |
| Endless Energy Systems | Durango | Residential, | Solar Electric (pv), |
| Endurance Solar & Engineering, LLC- Boulder | Boulder | Residential, | Solar Electric (pv), |
| Endurance Solar & Engineering, LLC- Fort Collins | Fort Collins | Residential, | Solar Electric (pv), |
| Enduring Energy | Denver | Residential, | Solar Electric (pv), |
| Energy Efficiencies, Llc – Canon City | Canon City | Residential, | Solar Electric (pv), |
| Energy Efficiencies, Llc – Colorado Springs | Colorado Springs | Residential, | Solar Electric (pv), |
| Energy Efficiencies, Llc – Littleton | Littleton | Residential, | Solar Electric (pv), |
| Energy Efficiencies, Llc – Pueblo | Pueblo | Residential, | Solar Electric (pv), |
| Energy Environmental Corporation | Centennial | Residential, | Solar Electric (pv), Solar Hot Water (thermal), Wind Power, |
| ESP Electric | Lakewood | Residential, | Solar Electric (pv), |
| Evergreen Sun Power | Evergreen | Residential, | Solar Electric (pv), |
| Facilitylogic | Denver | Residential, | Solar Electric (pv), |
| First Light Solar | Cascade | Residential, | Solar Electric (pv), |
| Flatiron Solar | Longmont | Residential, | Solar Electric (pv), |
| Fountain Valley Electrical | Colorado Springs | Residential, | Solar Electric (pv), |
| Go Green Electric | Denver | Residential, | Solar Electric (pv), |
| Golden Solar | Golden | Residential, | Solar Electric (pv), |
| Great Plains Power | Golden | Residential, | Solar Electric (pv), |
| Great Solar Works | Ridgway | Residential, | Solar Electric (pv), |
| Great Solar Works! Inc. | Ridgway | Residential, | Solar Electric (pv), |
| Green Solar Systems – Englewood | Englewood | Residential, | Solar Electric (pv), |
| Greenergy Systems | Grand Junction | Residential, | Solar Electric (pv), |
| H & H Electric | Long Beach | Residential, ,Commercial, | Solar Electric (pv), |
| High Noon Solar | Grand Junction | Residential, | Solar Electric (pv), |
| In The Now…For The Future | Westcliffe | Residential, | Solar Electric (pv), |
| Independent Power Systems | Boulder | Residential, | Solar Electric (pv), |
| Infinergy Wind & Solar Inc | Fort Collins | Residential, | Solar Electric (pv), |
| Infinergy Wind & Solar Inc-Fort Collins | Fort Collins | Residential, | Solar Electric (pv), |
| Innovative Energy | Breckenridge | Residential, | Solar Electric (pv), |
| Libertas Solar & Electric | Peyton | Residential, | Solar Electric (pv), |
| Lighthouse Solar – Boulder | Boulder | Commercial, | Solar Electric (pv), |
| Lighthousesolar | Boulder | Residential, | Solar Electric (pv), |
| Living Solar | Durango | Commercial, | Solar Electric (pv), |
| Matzen Electric & Solar | Lakewood | Residential, | Solar Electric (pv), |
| McDonald Solar and Wind Inc. | Colorado Springs | Residential, | Solar Electric (pv), |
| Metro Solar | Denver | Residential, | Solar Electric (pv), Solar Hot Water (thermal), |
| Mile Hi Solar | Loveland | Residential, | Solar Electric (pv), |
| Namaste Solar Electric | Boulder | Residential, | Solar Electric (pv), |
| NoCO Energy Solutions | Laporte | Residential, | Solar Electric (pv), |
| Nunatak Energy Solutions | Crested Butte | Residential, | Solar Electric (pv), |
| Peak 2 Peak Solar | Westminster | Residential, | Solar Electric (pv), |
| Peak Solar Designs | Salida | Residential, | Solar Electric (pv), |
| Quantum Renewable Energy, Inc. | Brighton | Residential, | Solar Electric (pv), |
| Real Goods Solar | Louisville | Residential, | Solar Electric (pv), |
| Real Goods Solar | Louisville | Residential, | Solar Electric (pv), |
| Real Goods Solar – Denver | Denver | Residential, | Solar Electric (pv), |
| REC Solar – Westminster | Westminster | Residential, ,Commercial, ,Municipal, | Solar Electric (pv), |
| REI Solar & Roofing | Lakewood | Residential, | Solar Electric (pv), |
| Renewable Energy Outfitters | Salida | Residential, | Solar Electric (pv), |
| Resolution Energy | Golden | Residential, | Solar Electric (pv), |
| Rocky Mountain Solar | Colorado Springs | Residential, | Solar Electric (pv), |
| Salt Electric | Denver | Residential, | Solar Electric (pv), |
| Simple Solar | Boulder | Residential, | Solar Electric (pv), |
| Simplicity Solar | Grand Junction | Residential, | Solar Electric (pv), |
| Simply Efficient Solar | Lakewood | Residential, | Solar Electric (pv), |
| Simply Efficient, LLC – Lakewood | Lakewood | Residential, | Solar Electric (pv), |
| Smiley Electric | Denver | Residential, | Solar Electric (pv), |
| SoL Energy | Carbondale | Residential, | Solar Electric (pv), |
| Solar Energy Environments | Lakewood | Residential, | Solar Electric (pv), |
| Solar Professional Services | Fort Collins | Residential, | Solar Electric (pv), |
| Solar Side Up | Golden | Residential, ,Commercial, | Solar Electric (pv), |
| Solar Supply of Colorado | Arvada | Residential, ,Commercial, | Solar Electric (pv), |
| SolarCity – Denver | Denver | Residential, ,Commercial, | Solar Electric (pv), |
| SolarCity – Parker | Parker | Residential, ,Commercial, | Solar Electric (pv), |
| SolarMR | Pueblo | Residential, | Solar Electric (pv), |
| SolSource Energy Solutions | Denver | Residential, | Solar Electric (pv), |
| Southard Solar Energy | Longmont | Residential, | Solar Electric (pv), |
| Standard Renewable Energy | Boulder | Residential, ,Commercial, | Solar Electric (pv), |
| Sun Mountain Solar | Fort Garland | Residential, | Solar Electric (pv), |
| Sun Spot Solar | Golden | Residential, | Solar Electric (pv), |
| Sundance Solar Designs, LLC | Olathe | Residential, | Solar Electric (pv), |
| Sunnyside Solar Colorado | Louisville | Residential, | Solar Electric (pv), |
| Sunsense Solar Electric | Carbondale | Residential, | Solar Electric (pv), |
| Sunspot Comfort & Energy Solutions | Colorado Springs | Residential, | Solar Electric (pv), |
| SunTalk Solar | Denver | Residential, ,Commercial, | Solar Electric (pv), |
| Sustainable Solutions Inc. | Como | Residential, | Solar Electric (pv), |
| Syndicated Solar Inc. | Greenwood Village | Residential, ,Commercial, | Solar Electric (pv), |
| Thames Solar Electric | Denver | Residential, | Solar Electric (pv), |
| Tiley Roofing Inc | Denver | Residential, | Solar Electric (pv), |
| Tri Power | Idaho Springs | Commercial, | Solar Electric (pv), |
| Ulteig | Englewood | Utilities, | Wind Power |
| Verita Solar | Norwood | Residential, | Solar Electric (pv), |
| WJ Bradley | Denver | Residential, | Solar Electric (pv), |
