| ReVision Energy | South Portland / Montville | (207) 221-6342 | revisionenergy.com | Employee-Owned, B Corp, Top New England Installer |
| Maine Solar Solutions | Freeport, ME (HQ) | (207) 871-7191 | mainesolarsolutions.com | Best Full-Service Local Installer, Tesla Powerwall Certified |
| Sundog Solar | Searsport, ME (HQ) | (207) 548-1100 | sundog.solar | Best Local Maine Installer, Excellent Customization Options |
| Summit Energy | Multi-State (Serves ME) | (877) 480-2521 | https://www.google.com/search?q=summit-solar.com | Strong Warranty, NABCEP Certified, Regional Installer |
| NuWatt Energy | Kennebunk, ME (Regional) | (888) 963-9528 | nuwattenergy.com | Elite+ Installer, Residential & Commercial Focus |
| Assured Solar Energy | Yarmouth, ME | (207) 221-2916 | assuredsolar.com | Best Customer Service (EcoWatch), Local Provider |
| Venture Solar | Biddeford, ME (Regional) | (888) 966-0726 | venturesolar.com | Best Northeast Regional Installer, 25-Year Warranty |
| Solar Systems of Maine | Augusta, ME | (207) 600-7766 | solarsystemsofmaine.com | Locally Owned & Family Operated, Maine Climate Expertise |
| Insource Renewables | Pittsfield, ME | (207) 221-6342 | insourcerenewables.com | Full-Service, Residential, Commercial, and Municipal |
| Porter Electrical Contracting | Multi-State (Serves ME) | (800) 794-2794 | https://www.google.com/search?q=porterec.com | Elite Installer, Established 2000, Residential/Commercial |
| ION Solar | Multi-State (Serves ME) | (888) 777-6966 | ionsolar.com | Top Overall (ConsumerAffairs), Strong Customer Service |
| Solar Power New England | Portland, ME | (207) 387-0037 | https://www.google.com/search?q=solarpowerne.com | Small Maine Company, Focus on Best Equipment at Fair Price |
| Tesla Solar | Various Regional Offices | (877) 798-3752 | tesla.com/solar | Best for Tech (Solar Roof & Powerwall) |
| Saco Solar | Saco, ME | (207) 283-1411 | sacosolar.com | Specializes in Off-Grid and Grid-Tie Systems |
| Independent Power | Greene, ME | (207) 946-4444 | independentpowerllc.com | Experienced Local Provider, Emphasis on Electrical & Solar |
