| Company | City | Service Type | Products |
| Advanced Electrical Solutions | Bethlehem | Residential, | Solar Electric (pv), |
| Advanced Solar Industries | Ronks | Residential, | Solar Electric (pv), |
| Arvak Energy Solutions | Boyertown | Residential, | Solar Electric (pv), |
| Atlantic Energy Concepts | Reading | Residential, | Solar Electric (pv), |
| Belmont Solar | Gordonville | Residential, | Solar Electric (pv), |
| Berks Solar | Mertztown | Residential, | Solar Electric (pv), |
| Bright Eye Solar | Lancaster | Residential, Commercial, | Solar Electric (pv), |
| Commercial Utility Consultants Inc. | West Chester | Residential, | Solar Electric (pv), |
| Cross River Solar | Easton | Residential, | Solar Electric (pv), |
| Dynamic Solar | Conshohocken | Residential, | Solar Electric (pv), |
| Eco-merica | Richboro | Residential, | Solar Electric (pv), |
| Endless Mountains Solar Services | Wilkes Barre | Residential, Commercial, | Solar Electric (pv), |
| Enviro Edge | State Colloge | Commercial, | Solar Electric (pv), |
| Eos Energy Solutions | Philadelphia | Residential, | Solar Electric (pv), |
| Exact Solar | Yardley | Residential, ,Commercial, | Solar Electric (pv), Solar Hot Water (thermal), Solar Pool Heating, |
| First Power and Light | Conshohocken | Residential, | Solar Electric (pv), |
| Green Co Solar | King of Prussia | Residential, | Solar Electric (pv), |
| Guerrera & Sons Electric. | Edgemont | Residential, | Solar Electric (pv), |
| Halo Energy | Pottstown | Residential, ,Commercial, ,Utilities, ,Municipal, | Solar Electric (pv), Solar Hot Water (thermal), Solar Pool Heating, Wind Power, |
| Haverford Systems | Downingtown | Residential, | Solar Electric (pv), |
| Heat Shed | Revere | Residential, | Solar Electric (pv), |
| Integrated Solar Solutions | West Ridge | Residential, ,Commercial, ,Utilities, | Solar Electric (pv), |
| Leamy Electric | Pottstown | Residential, | Solar Electric (pv), |
| Leamy Electric Inc | Pottstown | Residential, | Solar Electric (pv), Wind Power, |
| M.T. Ruhl Solar | Jeffersonville | Residential, | Solar Electric (pv), |
| Mercury Solar Systems -Philadelphia | Philadelphia | Residential, | Solar Electric (pv), |
| Moore Energy | Churchville | Residential, | Solar Electric (pv), |
| Natural-E | Avondale | Residential, | Solar Electric (pv), |
| Owner HOT | Lancaster | Residential, | Solar Electric (pv), |
| Paradise Energy Solutions | Gap | Residential, Commercial, Utilities, Municipal, | Solar Electric (pv), Solar Hot Water (thermal), |
| Penn Renewables. | Quakertown | Residential, | Solar Electric (pv), |
| Real Earth Power | Duncansville | Residential, | Solar Electric (pv), |
| Simplex Solar | Chinchilla | Commercial, | Solar Electric (pv), |
| Solair Energy. | Ralston | Residential, | Solar Electric (pv), |
| Solar Pro | Avondale | Residential, | Solar Electric (pv), |
| SolarCity – Broomall | Broomall | Residential, ,Commercial, | Solar Electric (pv), |
| Solardelphia | Carversville | Residential, | Solar Electric (pv), |
| Sun Directed | Pleasant Gap | Residential, | Solar Electric (pv), |
| Sun Ray Systems | Harleysville | Residential, | Solar Electric (pv), |
| SunPower Builders | Collegeville | Residential, | Solar Electric (pv), |
| Vara Solar | Jenkintown | Residential, ,Commercial, | Solar Electric (pv), Solar Hot Water (thermal), Solar Pool Heating, |
