| Installers | | Sites | |
| A3C Collaborative Architecture | Active | UrbEn Retreat | |
| Absolute Green Energy Corp | Active | Absolute Machinery Corporation | |
| | Active | MassMutual Financial Group | |
| Acer Energy | Active | North Pointe (511) | |
| | Active | North Pointe (525) | |
| Albright Electric & Solar LLC | Active | Sportsmen Bar | |
| All-Pro Electric | Offline | Bradford Christian Academy | |
| Allain & Son, Inc | Active | Ashburnham Municipal Light | |
| | Active | MMWEC Administrative | |
| | Active | Templeton Municipal Light | |
| Alpha Energy | Active | Deer Valley Airport | |
| Altenergy Incorporated | Offline | T. Greer And Associates | |
| Alteris Renewables | Active | Four Star Farms | |
| Alternate Energy, LLC | Active | Plymouth Dental Associates | |
| | Inactive | South Shore Skin Center | |
| Ameresco | Active | Beachmont School PV System | |
| | Active | Douglas County School District | |
| | Active | Spofford School Solar Electric System | |
| AMERICAN ECOENERGY | Active | Farmer Residence | |
| | Offline | Virgil Bidlack | |
| American Solar | Offline | Scott Labs | |
| AMSOLAR Corporation | Active | McDonald's View Kiosk  | |
| ARAM SOLAR | Offline | Dr. Holstein | |
| | Active | Guthrie Residence | |
| | Active | Hale White | |
| BASK Power LLC | Active | Belchertown Fire Department | |
| Beaumont Solar | Active | Cavallo-Cavallo, Inc | |
| | Active | Crosby & Baker LTD | |
| | Active | Kingman Yacht Center | |
| | Active | Kingman Yacht Center #1 | |
| | Active | Kingman Yacht Center #2 | |
| | Active | Kingman Yacht Center #3 | |
| | Active | Lawrence Lynch Corp | |
| | Inactive | Lighthouse Masonry | |
| | Active | Lukes Liquors | |
| | Active | Lukes residence | |
| | Offline | Melone residence | |
| | Active | Paul’s Electric | |
| | Active | Ralph Pollack D.M.D | |
| | Active | Saphire Estate | |
| | Active | Teaticket Market | |
| | Offline | Whaling City Transit | |
| | Active | Woods Hole Group | |
| Bellasolar | Active | StoneRidge1 | |
| Bonner Electric, Inc | Active | Davis Residence | |
| Borden Construction, Inc. | Offline | Borden House | |
| Borrego Solar Systems | Active | Million Dollar Baby | |
| | Offline | Morean's Antique Beer Cans Store | |
| | Active | New View Cohousing | |
| | Active | Serendipity Donuts | |
| BPVS | Active | Biscuit Hill Farm | |
| | Offline | Enterprise Bank | |
| Broadstreet Energy | Offline | Daniel Ketterling Proj#2 | |
| | Active | Durboraw | |
| | Offline | Iraj Rabbani Proj#4 | |
| | Offline | Khachikian | |
| | Active | Lenz Jr | |
| | Offline | Ricardo A. Urrea Proj#6 | |
| | Active | Walsh Project #8 | |
| | Active | Winterhalter | |
| Broadway Electric | Offline | Rehoboth Senior Center | |
| | Active | Wellfleet Public Library | |
| Broadway Electrical Construction | Active | IBEW LU 124 | |
| California Solar Energy | Offline | Peeples Residental | |
| Centennial Solar Inc | Offline | South Shore | |
| Channel Sun Solar | Active | Greenhouse Car Wash Inc | |
| | Active | Waves Car Wash | |
| Clean Energy Design | Offline | Secure Storage | |
| Clean Energy Design, LLC | Active | Cape Associates | |
| Clear Skies Solar | Active | Scotts Dairy Farm | |
| CMCO Electric & Solar | Active | Carbo & Zuniga Residence | |
| CMI Electric | Active | Delaware Offices LLC | |
| Competitive Solar | Active | Secure Storage - Hood River | |
| Consulting Engineering | Active | Hamden Middle School | |
| Cornett Roofing | Offline | Douglas Grandel Place | |
| Cotuit Solar | Active | Ballentine Boat Shop | |
| | Offline | Falmouth Products | |
| | Active | Hyannis Youth Center | |
| | Active | JK Scanlan Co. | |
| | Active | Trolley Crossing Farm | |
| Creative Energy Electric | Inactive | NECA-IBEW Inland Training Center | |
| Cummings Properties | Active | 8 Cabot Rd. | |
| | Active | Cummings Properties - TradeCenter 128 | |
| Curtis Lumber | Active | Curtis Lumber | |
| D & H Electric, Inc | Active | David Harrington | |
| Dagle Electric | Offline | Manchester-Essex High School | |
| DCS Energy | Active | Boutotte | |
| | Active | DCS #74 | |
| | Active | DCS 164 | |
| | Offline | DCS#84 | |
| | Active | Site 149 | |
| Dersch Energies, Inc. | Active | George F. Hering | |
| Direct Power & Water Corp | Active | Cognitive Behavior Inst. of Albuquerque | |
| E2 Powered | Active | Miller Elementary | |
| Eco Innovations | Active | Fuller Residence | |
| Eco Solar, Inc. | Active | Schreiner Residence | |
| Ecovis Inc | Active | Cazenovia College | |
| Elm Electrical Inc | Inactive | Northampton Aeronautics | |
| Energy Concepts | Active | Spruce Tree Centre | |
| Energy Conservation Services | Offline | Pecan Patch, LLC | |
| Fall River Electrical | Active | Everett DPW Garage | |
| | Active | Fall River Electrical Associates | |
| | Active | Norton Middle School | |
| | Active | Pearle L Crawford Memorial Library | |
| | Inactive | ROCKLAND ESTEN SCHOOL | |
| | Inactive | Rockland High School | |
| | Active | Swansea Desalination Plant | |
| | Active | Williamstown DPW Facility | |
| Freebreeze Energy | Offline | Freebreeze Energy Systems Ltd | |
| Future Solar Systems | Inactive | Bancroft School | |
| Gemini Solar | Offline | Palm Creek | |
| Go Green Industries | Active | Logvin Residence | |
| Goldhorn Electric | Offline | Lima Construction | |
| | Active | Louis Pietschmann | |
| Great Northern Electric, LLC | Active | Middleborough Photovoltaic Project | |
| GreenBridge Energy | Offline | Lawrence Boys & Girls Club View Kiosk  | |
| Greenskies Renewable Energy LLC | Offline | Brazel, Snyder & Company P.C. | |
| GreenTech Renewables Solutions | Inactive | Seagrove Solar Farm | |
| Gulf South Solar | Active | Betzer Residence | |
| | Active | The Island Clubhouse | |
| | Active | The Island HVAC | |
| Habi-Tek | Active | Chicago Botanic Garden | |
| | Active | Rutherford Dr Residence | |
| | Offline | Wheaton IL | |
| Harney Lightning & Electric | Active | MS 4kW Res | |
| Hoku Solar | Active | Hilo Terminal | |
| | Active | Maui Cargo | |
| | Active | Maui Cargo2 | |
| I Domain Industrial Co. | Offline | Motech | |
| IBEW Local 7 | Active | IBEW Local 7 | |
| IX Energy | Active | Warwick Town Hall | |
| James Electric LLC | Active | Bridget Johnson | |
| JF White Contracting | Active | MA Dept. of Correction - Concord | |
| | Active | MA Dept. of Correction - Norfolk | |
| JM E3 Co. | Active | Johns Manville Technical Center | |
| | Offline | Saint Petersburg College | |
| KC Green Energy | Active | Prospect Storage | |
| | Active | Reist Precision | |
| Kenworthy Electric | Active | Kenworthy Residence | |
| | Active | Swager Residence | |
| | Active | Trails End Carport | |
| | Active | Witt Residence | |
| Kenyon Energy | Active | Bus Garage | |
| | Active | Canon City High School System | |
| | Active | Canon City Middle School System | |
| | Active | Harrison Middle School | |
| | Active | Lincoln Elementary | |
| | Active | McKinley | |
| | Active | Rocky Ford - Jefferson Middle School | |
| | Active | Rocky Ford - Washington Primary School | |
| | Active | Rocky Ford High School | |
| | Active | Rocky Ford High School - AG Building | |
| | Active | Rocky Ford High School - Bus Garage | |
| | Active | Skyline | |
| | Active | Washington | |
| Kesco Electric, Inc | Active | Street Sweeper Building | |
| KW Management | Active | 2nd Nature Academy | |
| | Active | First Equity Association | |
| | Active | Friday's Hill Farm | |
| | Active | Hilltop Place | |
| | Active | New Hampshire Institute of Art | |
| | Active | Nobis Engineering | |
| Legacy Bank | Active | Legacy Bank Merrill Rd. | |
| LightHouse Electrical | Offline | Bartlett's Farm | |
| | Inactive | Boston Latin Academy View Kiosk  | |
| | Active | Boston Latin School View Kiosk  | |
| | Active | Camp Harbor View Foundation | |
| | Active | Carlson Orchards View Kiosk  | |
| | Offline | Citizen's Center | |
| | Active | Franklin Hill Phase II | |
| | Active | Franklin Roosevelt School View Kiosk  | |
| | Active | MA Nurses Association | |
| | Inactive | Madison Park School View Kiosk  | |
| | Inactive | Murphy School View Kiosk  | |
| | Inactive | Otis Wind Turbine | |
| Littleton Electric | Active | LELWD Administration Building | |
| M L Schmitt Electric | Active | Ann Whalen Apartments | |
| Martifer Solar | Active | Antelope Valley Transit Authority | |
| | Active | Big Blue Bus | |
| Mass Renewables | Active | Kelley Residence | |
| Mercury Solar Systems | Active | C.W. Brown Armonk | |
| | Active | Hankin | |
| | Offline | Honey Cell | |
| | Active | JB Moving | |
| | Active | SatJas | |
| | Offline | SL Green | |
| | Active | Thornwood Self Storage | |
| | Active | Wee Burn Country Club | |
| Meridian Solar | Active | City of Allen - MCPAR Solar | |
| Metro Services Inc | Active | Truck & Trailer USA | |
| Munro Distributing Co Inc. | Active | Munro - New Bedford MA | |
| New England Breeze | Active | Arnold Residence | |
| | Active | Augustine Residence | |
| | Offline | Bissett Residence | |
| | Active | Boover Residence | |
| | Active | Boucher Residence | |
| | Active | Buffum Residence | |
| | Active | Contaxes Residence | |
| | Active | Davis Residence - Lancaster, MA | |
| | Offline | Dick Residence | |
| | Active | Fite Residence | |
| | Active | Fix Residence | |
| | Active | Gag Residence | |
| | Active | Grey Residence | |
| | Active | Hamilton Residence | |
| | Active | Hannon Residence | |
| | Active | Haran-Costello Residence | |
| | Active | Herriott Residence | |
| | Offline | Holiday Farm | |
| | Active | Jefferson Residence | |
| | Active | Kennedy Residence | |
| | Active | Kjellberg Residence | |
| | Active | Lapine residence | |
| | Active | MSF/V | |
| | Active | Natures Classroom - East Lodge | |
| | Offline | Parker Family | |
| | Active | Pierce Residence | |
| | Active | Rehill Residence | |
| | Offline | Rykbost Residence | |
| | Active | Savage Residence | |
| | Active | Simpson Residence | |
| | Active | Sprayregen Residence | |
| | Active | Suojanen Residence | |
| Nexamp | Active | Banner Farm | |
| | Active | Oyster Harbor | |
| | Active | Vandervalk Farm | |
| NY Wind and Sun | Offline | Parade of Homes | |
| OneWorld Sustainable - LCSO | Active | T.K. Davis Justice Center | |
| Ostrow Electric | Active | Londonderry Moose Hill School Air Monitoring Station | |
| | Offline | Wellfleet Fire Dept | |
| | Active | Winchester High School | |
| Ottawa Valley solar | Active | Jeffrey Millar | |
| | Active | Ottawa Valley Glass | |
| Outpost Solar | Offline | Richland, LLC - EV Charging Station | |
| Owl Power Company | Offline | Owl Power Company | |
| Pearson Systems | Active | Baystate MRI and Imaging Center | |
| PFister | Active | Phillipsburg Stowaway Self-Storage | |
| Power Up | Active | Salvo Auto Parts | |
| Pure Energy Alternatives LLC | Active | 1730 Henderson | |
| | Active | Anthony Roofing | |
| | Active | Devon Bank | |
| | Active | Galva School | |
| | Offline | High Crest Middle School | |
| | Active | Loeber Motors | |
| | Active | New Trier High School | |
| | Active | Quest Academy | |
| | Active | St Francis High School #1 | |
| | Active | St Francis High School #2 | |
| | Active | Temple Chai | |
| | Offline | Whitney Young High School | |
| PV Squared | Active | Canton Water Pollution Control Facility | |
| | Active | Elyssium | |
| | Active | New England Environmental | |
| | Active | Northeast Veterans Training & Rehabilitation Center | |
| | Active | Northeast veterans training duplexes | |
| | Active | Solidago | |
| | Active | Yale Swing Dorm | |
| Real Value Inc | Offline | Real Value Inc | |
| REC Solar Inc | Active | Kauai Community College | |
| Renewable Solutions | Active | Colegio San Ignacio | |
| Rise Engineering | Inactive | Holden Senior Center | |
| | Active | Pascoag Solar Array | |
| | Inactive | Shrewsbury Electric | |
| Ross Solar Group | Active | Beardsley Zoo | |
| | Offline | Court Liquors Ross Solar | |
| Rowson Electric | Active | Ag-Mart Produce Inc. - Site #1 | |
| | Active | Ag-Mart Produce Inc. - Site #2 | |
| | Active | AgMart - DBA Santa Sweets #3 | |
| S+H Construction | Active | Firehouse | |
| | Active | Ramey Solar | |
| | Active | Reservoir | |
| Save a Lot Solar | Active | Boese Residence | |
| Scott and Sons Electric | Active | Butch and Jan Sveiven Residence | |
| Seventh Generation Energy | Offline | Prehn Residence | |
| Signature Solar Design | Active | Deboo Residence | |
| Smuckers | Active | Horizon Structures | |
| Solar Design Associates | Offline | St Polycarp Apartments | |
| Solar Electric Company | Active | Mr & Mrs Yong | |
| Solar Energy Revolution | Active | Willingboro | |
| Solar Installation Limited | Active | Dartmouth Building Supply | |
| | Active | Munro Electric - Brockton | |
| Solar Market | Active | Amesbury High School | |
| | Active | Bourne | |
| | Active | Cider Hill Farm #1 25KW | |
| | Active | Marshwood High School | |
| | Active | Mill 77 #1 | |
| | Active | Mill 77 #2 | |
| | Active | Mill 77 #3 | |
| | Offline | Scott Graham | |
| | Offline | Solar Center | |
| | Active | Step Guys | |
| Solar Nation | Active | Appliance Hospital | |
| | Offline | Metallion Industries | |
| | Offline | Metallion Phase 2 | |
| | Active | Rogers Machinery Company, Inc | |
| | Active | TSCO - Tube Specialties Co. | |
| Solar One Energy,Inc. | Active | Lanza | |
| Solar Revolution, LLC | Active | Erie Federal Credit Union | |
| | Offline | Murray Residence | |
| Solar Source | Offline | Lowry Park Zoo | |
| Solar Technologies | Active | Bernstein Residence | |
| | Offline | Ferreira | |
| | Offline | Gil Residence | |
| | Active | Jensen | |
| | Active | Kunz | |
| | Active | Lampe | |
| | Active | Lawson | |
| | Active | LEWBEL - Hofmann | |
| | Active | Norris Residence | |
| | Active | North | |
| | Active | Scoggin | |
| | Active | Stampleman Residence | |
| | Active | Talmadge | |
| Solar Technology Solutions | Active | Lacey / STS Corporate Office | |
| Solar Winds Power Systems | Offline | El Topo Residence | |
| | Active | Wittenbach - Wege Center | |
| SolarFlair | Active | 126 Self Storage | |
| | Active | Bird Precision | |
| | Active | Car Wash & Detailing of Westborough | |
| | Active | Conigliaro Industries | |
| | Active | Grafton High School | |
| | Active | Monnick Supply Company | |
| | Offline | Spencer Organ Company | |
| | Active | Stage Stop Candy | |
| Solectria Renewables | Active | Solectria Renewables | |
| Solectrical Engineering | Offline | Great Barrington Fire Station | |
| SolSource | Active | Blue Mountain Arts | |
| | Inactive | CaridianBCT-811 | |
| SolTerra Renewable Energy | Active | Minnon Residence | |
| Solutions for Industry | Offline | Demo Tracker | |
| Soprema | Active | Gulfport | |
| Southcoast Greenlight Energy | Offline | Gardner Residence | |
| | Active | Munro Electric - Fall River | |
| Southern Solar Systems | Offline | Austin Peay State University | |
| SouthPoint LLC | Active | Ford Road Residence | |
| | Active | Fosta-Tek Optics, Inc | |
| | Active | Northstar Construction Services | |
| | Active | Novacek's Barn | |
| | Active | Sterling Municipal Light Department | |
| Spectrum Solar LLC | Active | Griesser Residence | |
| Spire Solar | Active | Tidmarsh Farm | |
| Summit Electrical Service | Active | Katz | |
| SunAir Systems | Active | Adair County High | |
| | Inactive | Alexander Grade School | |
| | Active | Alpine Christian School | |
| | Offline | Benjamin Middle School | |
| | Active | Illini Central High School CUSD 189 | |
| | Offline | John Middleton Elementary School | |
| | Active | Leeper Town | |
| | Active | Lemont High School | |
| | Active | LWC Energy Technology Career Academy | |
| | Active | Providence High School | |
| | Offline | Rankin Community School Dist #98 | |
| | Active | Science & Arts Academy | |
| | Active | St. Phillip the Apostle School | |
| | Active | Westgate Elementary | |
| | Active | Woodlawn Middle School | |
| SunBug Solar | Active | Abbott Residence | |
| | Active | Galasso Tree Co. | |
| Sungevity Inc. | Active | Cassidy 17214 | |
| Sunlight Solar Energy | Active | Allen Residence | |
| | Active | Ballin Residence | |
| | Active | Bantly House | |
| | Offline | Dimmick Residence | |
| | Active | Farbstein House | |
| | Active | Gallagher House | |
| | Active | James House | |
| | Active | Kahn Residence | |
| | Active | Kelly | |
| | Inactive | LaPine Elementary School | |
| | Active | Losada House | |
| | Active | Maragas Winery | |
| | Active | Morris House | |
| | Active | Rigano House | |
| | Active | Sophis House | |
| | Inactive | Thomas Residence | |
| Sunpro Solar | Offline | Evans Home | |
| Synergy Investment, Inc. | Active | Conigliaro Industries - Synergy | |
| Systems Contracting Inc. | Inactive | Brockton Council on Aging | |
| The Carter Corporation | Offline | The Print Shop | |
| The J3 Energy Group, Inc | Active | Michael & Kimberle Stramara | |
| Thomas McHaffie | Active | Jack McLean Aquatics Center | |
| Tick Tock Energy, Inc | Offline | Thacker Trust Rental Property | |
| Tim Pickett Construction | Active | Davies Residence | |
| Tom Hopper and sons Adam & Eli | Active | Hopper Home | |
| Tremco, Inc | Active | Special Education District of McHenry | |
| | Active | Winn Investments | |
| Turning Mill Energy LLC | Active | Patriot Renewables | |
| | Active | Rogers & Gray Insurance | |
| UC Components | Active | UC Components | |
| Underwood Solar Future | Active | Susquahanna Trail Solar | |
| Vigor CleanTech Inc | Active | CressmanTest | |
| Vista Solar | Active | Wharf Plaza | |
| Wayne J Griffin Electric | Active | Bourne Elementary | |
| Zapotec Energy | Active | 823 Main Street | |
| | Offline | Mary Street Residence | |
| | Active | Spencer Green | |
| |
| Self Installations | Active | Fayetteville Public Library | |
| | Offline | Paul J.Kennedy, Jr. | |
| | Active | World Class Flowers | |