| Company | City | Service Type | Products |
| American Electric | Honolulu | Residential, | Solar Electric (pv), |
| American Electric Company | Honolulu | Residential, ,Commercial, ,Utilities, ,Municipal, | Solar Electric (pv), Solar Hot Water (thermal), |
| Bonterra Solar | Honolulu | Residential, ,Commercial, ,Municipal, | Solar Electric (pv), Solar Hot Water (thermal), |
| Borco Inc. | Kaneohe | Residential, | Solar Electric (pv), |
| Hawaiian Island Solar | Kailua | Residential, | Solar Electric (pv), |
| Hoku Solar | Honolulu | Residential, | Solar Electric (pv), |
| Island Solar Service | Honolulu | Residential, | Solar Electric (pv), |
| Islandwide Solar – Kailua Kona | Kailua Kona | Residential, | Solar Electric (pv), |
| Islandwide Solar – Lihue | Lihue | Residential, | Solar Electric (pv), |
| Islandwide Solar -Waipahu | Waipahu | Residential, | Solar Electric (pv), |
| Maui Solar Energy Systems | Kihei | Residential, | Solar Electric (pv), |
| Maui Solar Project | Kihei | Residential, | Solar Electric (pv), |
| Mercury | Honolulu | Commercial, | Solar Electric (pv), |
| Photonworks | Honolulu | Residential, | Solar Electric (pv), |
| Pristine Sun-Honolulu | Honolulu | Residential, | Solar Electric (pv), |
| ProVision Technologies | Hilo | Residential, | Solar Electric (pv), |
| REC Solar – Kapolei | Kapolei | Residential, ,Commercial, ,Utilities, ,Municipal, | Solar Electric (pv), |
| RES | Paauilo | Residential, ,Commercial, ,Utilities, ,Municipal, | Solar Electric (pv), Wind Power, |
| Revolusun | Honolulu | Residential, | Solar Electric (pv), |
| Rising Sun Solar Electric | Haiku | Residential, ,Commercial, ,Municipal, | Solar Electric (pv), |
| Saving Oahu’s Solar | Honolulu | Residential, | Solar Electric (pv), |
| Smart Energy Hawaii | Honolulu | Residential, ,Commercial, | Solar Electric (pv), Solar Hot Water (thermal), |
| Solar City – Mililani | Mililani | Residential, | Solar Electric (pv), |
| Solar Engineering & Contracting | Lawai | Residential, | Solar Electric (pv), |
| SolarCity – Mililani | Mililani | Residential, ,Commercial, | Solar Electric (pv), |
| SolarWorks! | Ocean View | Residential, | Solar Electric (pv), |
| Sunetric | Kailua | Residential, | Solar Electric (pv), |
| Zip Electric – Alexandria | Alexandria | Residential, | Solar Electric (pv), |
| Zip Electric – Maui | Maui | Residential, | Solar Electric (pv), |
