| Company | City | Service Type | Products |
| Aegis Electrical Systems | Branford | Residential, | Solar Electric (pv), |
| All Green IT | Bristol | Residential, | Solar Electric (pv), |
| Anderson Electric | Greenwich | Residential, | Solar Electric (pv), |
| BeFree Solar | Madison | Residential, ,Commercial, ,Municipal, | Solar Electric (pv), Solar Hot Water (thermal), |
| Bonner Electric | Uncasville | Residential, | Solar Electric (pv), |
| Burrington | Windsor Locks | Residential, | Solar Electric (pv), |
| C Solar | Westport | Residential, ,Commercial, | Solar Electric (pv), |
| EcoSolar Installations | Branford | Residential, ,Commercial, | Solar Electric (pv), |
| Elyon HOT | Plainville | Residential, | Solar Electric (pv), |
| Encon Solar | Stratford | Residential, | Solar Electric (pv), |
| Enviromental Energy Solutions | Greenwich | Residential, | Solar Electric (pv), |
| Enviroview Pv Solar | Branford | Residential, | Solar Electric (pv), |
| Greenskies Renewable Energy LLC | Middletown | Commercial, ,Municipal, | Solar Electric (pv), |
| JD Solar Solutions | Bolton | Residential, Commercial, | Solar Electric (pv), |
| Mercury Solar Systems -Greenwich | Greenwich | Residential, | Solar Electric (pv), |
| New England Solar & Electric | Ashford | Residential, | Solar Electric (pv), |
| Nexamp, Inc. – Hartford | Hartford | Commercial, | Solar Electric (pv), |
| OnForce Solar | Stamford | Residential, | Solar Electric (pv), |
| Real Goods Solar – Stonington | Stonington | Residential, | Solar Electric (pv), |
| Real Goods Solar – Wilton | Wilton | Residential, | Solar Electric (pv), |
| Ross Solar Group – Danbury | Danbury | Residential, | Solar Electric (pv), |
| Skyline Solar – Shelton | Shelton | Residential, | Solar Electric (pv), |
| SolarCity – Hartford | Wethersfield | Residential, ,Commercial, | Solar Electric (pv), |
| SolarCity – Rocky Hill | Rocky Hill | Residential, | Solar Electric (pv), |
| Soluxe Solar | Westport | Residential, | Solar Electric (pv), |
| Sunlight Solar Energy | Milford | Residential, | Solar Electric (pv), |
| Sunlight Solar Energy, Inc. – New Haven | New Haven | Residential, | Solar Electric (pv), |
| Waldo Renewable Electric | Old Lyme | Residential, | Solar Electric (pv), |
