2026 Top Massachusetts Solar Contractors
This is the 2026 list of Top Solar Contractors completing work in Massachusetts. The kilowatts listed as being installed in the state reflect only kilowatts installed in Massachusetts in 2025. Companies listed on this state list could be headquartered in other states, participate in any market (residential, commercial, community solar, utility) and provide any installation service (EPC, developer, installer, installation subcontractor, electrical subcontractor, sales partner).
The listed kilowatts installed by each company in Massachusetts could come from installations in all markets (residential, commercial, community solar, utility) but only within Massachusetts state lines.
The companies below are a segmented portion of the overall 2026 Top Solar Contractors List, organized by kilowatts (DC) installed in 2025.
For more information on Solar Power World‘s annual Top Solar Contractors List and additional sublists, visit our Top Solar Contractors home page.
| Massachusetts Rank | Company | kW Installed In Massachusetts | Markets Served | Primary Service | Total kW installed in U.S. in 2025 | Overall Rank |
|---|---|---|---|---|---|---|
| 1 | Standard Solar | 19,838.65 | U | C&I | CS | Developer | 156,901.70 | 41 |
| 2 | Trinity Solar | 13,850.85 | R | Installer | 137,529.72 | 45 |
| 3 | DCE Services | 12,103.64 | C&I | Installation Subcontractor | 111,895.30 | 51 |
| 4 | Solar Mounts | 11,490.14 | U | C&I | Installation Subcontractor | 37,975.97 | 93 |
| 5 | Mill Creek Renewables | 10,541.00 | U | CS | EPC | 193,514.87 | 39 |
| 6 | dGEN Energy Partners | 6,223.00 | C&I | Developer | 24,409.00 | 107 |
| 7 | ACE Solar | 5,961.56 | C&I | EPC | 43,572.68 | 83 |
| 8 | Dynamic Energy | 5,446.50 | C&I | CS | Developer | 7,633.00 | 185 |
| 9 | Ameresco | 5,289.00 | C&I | CS | Developer | 42,417.00 | 86 |
| 10 | Skyline Solar | 5,267.39 | R | Installer | 16,110.73 | 131 |
| 11 | Nexamp | 4,147.00 | CS | Developer | 245,711.53 | 35 |
| 12 | REC Power | 4,146.88 | C&I | Developer | 11,368.73 | 154 |
| 13 | Valley Solar | 4,010.09 | C&I | R | Installer | 4,010.09 | 241 |
| 14 | ReVision Energy | 3,986.91 | C&I | CS | R | Installer | 41,030.23 | 88 |
| 15 | My Generation Energy | 3,750.80 | C&I | R | Installer | 3,750.80 | 247 |
| 16 | PV Squared | 2,639.00 | C&I | R | Installer | 2,658.93 | 274 |
| 17 | Resonant Energy | 2,468.75 | C&I | R | Developer | 2,468.75 | 280 |
| 18 | Earthlight Technologies | 2,300.99 | C&I | R | Installer | 20,708.11 | 114 |
| 19 | SGE Solar | 2,229.77 | C&I | R | Installer | 2,316.97 | 287 |
| 20 | All Energy Solar | 1,864.32 | C&I | R | Installer | 16,404.09 | 130 |
| 21 | M Bar C Construction | 966.78 | C&I | Installation Subcontractor | 72,476.13 | 60 |
| 22 | NRGTree | 925.94 | C&I | R | EPC | 962.34 | 350 |
| 23 | Brightstar Solar | 838.56 | R | Installer | 838.56 | 355 |
| 24 | EMPWR Solar | 631.85 | R | Installer | 18,891.40 | 122 |
| 25 | Pivot Energy | 507.00 | C&I | CS | Developer | 126,628.24 | 47 |
| 26 | SAVKAT | 152.67 | R | Installer | 4,149.30 | 236 |
| 27 | National Renewable Energy Partners | 28.11 | R | Installer | 1,108.18 | 337 |
| 28 | Cape Fear Energy Systems | 21.12 | C&I | R | Installer | 5,096.83 | 214 |
| 29 | Finray Solar | 17.00 | R | Sales Partner | 75.78 | 386 |