★ 2014 Top Solar Contractors
2014 Top 400 Solar Contractors
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Solar Power World, the industry’s leading source for technology, development and installation news, presents the 2014 Top 400 Solar Contractors list. The list ranks applicants according to their influence in the solar market in 2013.The list details the location of a company, how many people it employs, its primary market (utility, residential or commercial), as well as its primary service (EPC, developer, rooftop installation, construction, thermal systems, non-profit, off-grid projects or electrical).
Ranks are determined by the number of megawatts a company installed in 2013. In some cases, companies reported megawatts for which they were a sub-contractor. If two companies reported the same 2013 numbers, they were sorted by total megawatts installed. Click here to read more about the Top 400 Solar Contractors list.
| Rank | Company | City | State | Primary Service | Total MW 2013 |
|---|---|---|---|---|---|
| 1 | First Solar | Tempe | AZ | EPC | 1130 |
| 2 | NRG Energy | Princeton | NJ | Developer | 672 |
| 3 | Rosendin Electric | San Jose | CA | EPC | 383.41 |
| 4 | SolarCity | San Mateo | CA | Rooftop Contractor | 280 |
| 5 | CSI Electrical Contractors | Santa Fe Springs | CA | Electrical Subcontractor | 260 |
| 6 | Strata Clean Energy | Durham | North Carolina | EPC | 200 |
| 7 | E Light Electric | Englewood | Colorado | Electrical Subcontractor | 189 |
| 8 | Wood | Houston | TX | EPC | 187 |
| 9 | Mortenson | Minneapolis | Minnesota | EPC | 185.8 |
| 10 | CoVolt Power | Houston | Texas | EPC | 132.7 |
| 11 | SOLV Energy | San Diego | California | EPC | 102 |
| 12 | Cupertino Electric | San Jose | CA | EPC | 100 |
| 13 | Moss | Fort Lauderdale | Florida | EPC | 99.8 |
| 14 | M+W Energy | Union | NJ | EPC | 80 |
| 15 | Arraycon | Sacramento | CA | EPC | 75 |
| 16 | IEA | Indianapolis | IN | EPC | 71 |
| 17 | Vivint Solar | Lehi | UT | EPC | 58.26 |
| 18 | Sunstall | Novato | California | Construction Firm | 52 |
| 19 | M Bar C Construction | San Marcos | California | Construction Firm | 44 |
| 20 | Quanta Power Generation | Greenwood Village | CO | EPC | 42.793 |
| 21 | Helix Electric | San Diego | California | Construction Firm | 41 |
| 22 | Borrego | San Diego | CA | EPC | 37.296 |
| 23 | S&C Electric Company | Chicago | IL | EPC | 34.2 |
| 24 | RGS Energy | Denver | CO | EPC | 31 |
| 25 | Cenergy Power | Carlsbad | CA | EPC | 30 |
| 26 | Inovateus Solar | South Bend | IN | EPC | 28.35 |
| 27 | Helios Developments | Sudbury | ON | Construction Firm | 26 |
| 28 | Verengo | Torrance | CA | Rooftop Contractor | 25.4 |
| 29 | Main Street Power Company | Boulder | CO | Developer | 25.361 |
| 30 | FLS Energy | Asheville | NC | Developer | 24.718 |
| 31 | Radiance Solar | Marietta | Georgia | EPC | 24.5 |
| 32 | AUI Partners | Fort Worth | TX | Construction Firm | 23 |
| 34 | Trinity Solar | Wall | New Jersey | EPC | 22.038 |
| 35 | DKD Electric | Albuquerque | NM | Electrical Subcontractor | 21.5 |
| 36 | Resolute Performance Contracting | Tempe | AZ | Construction Firm | 20.439 |
| 37 | Cantsink | Winder | Georgia | Construction Firm | 20 |
| 38 | Wilson Electric | Tempe | AZ | Construction Firm | 18.519 |
| 39 | Nexamp | Boston | Massachusetts | Developer | 18 |
| 40 | REC Power | San Luis Obispo | California | Developer | 17.885 |
| 41 | Tecta Solar | Fort Washington | PA | EPC | 17.435 |
| 42 | JE Dunn Construction | Kansas City | MO | Construction Firm | 16.7 |
| 43 | Amberjack Solar Energy | Oakland | NJ | EPC | 16 |
| 44 | Solar Design Tech | Ogden | UT | Developer | 15.4 |
| 45 | Alternate Energy | Honolulu | HI | Developer | 14.689 |
| 46 | Solar Universe | Livermore | CA | Rooftop Contractor | 14 |
| 47 | Energy Systems & Installation | Jonestown | PA | EPC | 13.7 |
| 49 | Bithenergy | Baltimore | MD | Developer | 13.3 |
| 50 | Ray Angelini | Sewell | NJ | EPC | 13 |
| 51 | Hannah Solar | Atlanta | GA | EPC | 13 |
| 52 | Veregy | Phoenix | Arizona | EPC | 12.815 |
| 53 | Advanced Green Technologies | Fort Lauderdale | Florida | EPC | 12.771 |
| 54 | Qcells EPC | Irvine | California | Developer | 12.668 |
| 55 | Bland Company | Bakersfield | CA | Rooftop Contractor | 12 |
| 56 | Fun In The Sun Solar | Orlando | FL | Solar Hot Water Contractor | 12 |
| 57 | Renewable Assets | Alexandria | VA | EPC | 12 |
| 58 | US Light Energy | Latham | NY | Developer | 11 |
| 59 | Standard Solar | Rockville | Maryland | EPC | 10.589 |
| 60 | KDH Solar | New Orleans | LA | Rooftop Contractor | 10.452 |
| 61 | Beaumont Solar | New Bedford | MA | Developer | 10.2 |
| 62 | Solar Electrical Systems | Westlake Village | CA | Construction Firm | 10 |
| 63 | Sunetric | Kailua | HI | EPC | 10 |
| 64 | Inman Solar | Atlanta | GA | EPC | 10 |
| 65 | RevoluSun Smart Home | Honolulu | Hawaii | Developer | 9.8 |
| 66 | Pure Power Systems | Hoboken | NJ | Construction Firm | 9.776 |
| 67 | Solar CenTex | Harker Heights | TX | Rooftop Contractor | 9.6 |
| 68 | Hawaii Energy Connection | Aiea | HI | EPC | 9.276 |
| 69 | Shorebreak Energy Developers | Santa Ana | CA | Developer | 9 |
| 70 | NOVA Consultants | Novi | MI | EPC | 9 |
| 71 | American Solar Direct | Anaheim | CA | Rooftop Contractor | 8.99 |
| 72 | Summerwind Solar LLC | Phoenix | AZ | Rooftop Contractor | 8.5 |
| 73 | Renewable Energy Massachusetts | Belmont | MA | Developer | 8.5 |
| 74 | Smart Energy Solar | Corona | CA | Rooftop Contractor | 8.32 |
| 75 | Stellar Energy GP | Rohnert Park | CA | EPC | 8 |
| 76 | SolBright Renewable Energy | Charleston | SC | EPC | 7.39 |
| 77 | Solar Energy World | Laurel | Maryland | Rooftop Contractor | 7 |
| 78 | Haleakala Solar and Roofing | Kahului | HI | EPC | 6.652 |
| 79 | NARENCO | Charlotte | NC | 6.5 | |
| 80 | Your Energy Source | Rancho Cordova | CA | EPC | 6.157 |
| 81 | Solar Source | St. Petersburg | Florida | EPC | 6.118 |
| 82 | Sunline Energy | San Diego | California | Construction Firm | 6.1 |
| 83 | Oak Leaf Energy Partners | Denver | CO | Developer | 6 |
| 84 | Harmon Electric | Phoenix | Arizona | EPC | 6 |
| 85 | OnForce Solar | Bronx | NY | EPC | 6 |
| 86 | Baja Construction | Martinez | California | Construction Firm | 6 |
| 87 | Sunsmart Technologies | Gladstone | MO | EPC | 6 |
| 88 | Alliance Energy & Mechanical | Murrieta | CA | Electrical Subcontractor | 6 |
| 89 | Lumos Solar | Boulder | CO | EPC | 6 |
| 90 | Solect Energy | Hopkinton | MA | EPC | 5.7 |
| 91 | Baker Electric | Escondido | California | EPC | 5.608 |
| 92 | A1 Solar Power | Van Nuys | CA | Developer | 5.6 |
| 93 | SPG Solar | Petaluma | CA | EPC | 5.505 |
| 94 | GeoPeak Energy | Somerset | NJ | EPC | 5.5 |
| 95 | Namaste Solar | Longmont | Colorado | EPC | 5.5 |
| 96 | Sun Valley Solar Solutions | Chandler | Arizona | EPC | 5.377 |
| 97 | Sullivan Solar Power | San Diego | CA | Developer | 5.194 |
| 98 | Blue Oak Energy | Davis | CA | EPC | 5 |
| 99 | GCI Solar | Huntington Beach | CA | Rooftop Contractor | 5 |
| 100 | The Solar Company | Castro Valley | CA | Rooftop Contractor | 4.933 |
| 101 | Monolith Solar | Rensselaer | NY | Developer | 4.8 |
| 102 | PowerFlex | San Diego | CA | Developer | 4.16 |
| 103 | Independent Energy Solutions | Vista | CA | Construction Firm | 4.14 |
| 104 | Solar Liberty | Buffalo | NY | EPC | 4.1 |
| 105 | Sunworks | Provo | UT | EPC | 4 |
| 106 | Freedom Power | Austin | TX | EPC | 4 |
| 107 | Microgrid Solar | St. Louis | MO | EPC | 4 |
| 108 | Sunstore Solar | Greer | SC | Off-Grid Contractor | 4 |
| 109 | Sun Solar Energy Solutions | Bakersfield | CA | Rooftop Contractor | 3.811 |
| 110 | Hamilton Solar | Reno | NV | EPC | 3.7 |
| 111 | GRID Alternatives | Oakland | CA | Non-Profit Contractor | 3.591 |
| 112 | PermaCity | Los Angeles | CA | Rooftop Contractor | 3.5 |
| 113 | Stellar Solar | Oceanside | California | Rooftop Contractor | 3.5 |
| 114 | Newport Power | San Clemente | California | EPC | 3.5 |
| 115 | NATiVE | Austin | TX | Rooftop Contractor | 3.46 |
| 116 | Alder Energy Systems | Charleston | SC | Developer | 3.25 |
| 117 | Solular | Marlton | NJ | EPC | 3.2 |
| 118 | Solar Alliance of America | San Diego | CA | Rooftop Contractor | 3.2 |
| 119 | Vista Solar | Santa Clara | CA | EPC | 3.189 |
| 120 | Fidelity Home Energy | San Diego | CA | Rooftop Contractor | 3.134 |
| 121 | American Electric | Mililani | HI | EPC | 3.1 |
| 122 | M.B. Herzog Electric | Paramount | CA | Electrical Subcontractor | 3.017 |
| 123 | Sun Light & Power | Berkeley | California | EPC | 3 |
| 124 | Independence Solar | Essex | CT | Developer | 3 |
| 125 | SunHarvest Solar | Phoenix | AZ | Electrical Subcontractor | 3 |
| 126 | Planet Solar Incorporated | Santa Barabara | CA | Construction Firm | 3 |
| 127 | Compass Solar Energy | Pensacola | FL | EPC | 3 |
| 128 | Puget Sound Solar | Seattle | Washington | EPC | 3 |
| 129 | Con Edison Solutions | Valhalla | CT | EPC | 2.9 |
| 130 | Solis Partners | Sea Girt | NJ | Developer | 2.9 |
| 131 | SUNation Energy | Ronkonkoma | New York | EPC | 2.742 |
| 132 | Smalley Heating & Cooling | Topeka | KS | Rooftop Contractor | 2.7 |
| 133 | Horizon Solar Power | Temecula | CA | Rooftop Contractor | 2.7 |
| 134 | O3 Energy | Dallas | Texas | Developer | 2.7 |
| 135 | Kokosing Solar | Athens | OH | EPC | 2.609 |
| 136 | Clean Energy Collective | Louisville | CO | Developer | 2.57 |
| 137 | Axium Solar | Mckinney | Texas | EPC | 2.509 |
| 139 | Joule Energy | New Orleans | LA | EPC | 2.5 |
| 140 | Folium Energy Development | Addison | TX | Developer | 2.5 |
| 141 | Boston Solar | Woburn | MA | EPC | 2.5 |
| 142 | EmPower Solar | Island Park | NY | Rooftop Contractor | 2.423 |
| 143 | SunVest Solar | Chicago | Illinois | Developer | 2.373 |
| 144 | ADR Solar Solutions | Los Angeles | CA | EPC | 2.35 |
| 145 | Herca Solar | Oceanside | CA | EPC | 2.3 |
| 146 | Sun Solar | Springfield | Missouri | Developer | 2.3 |
| 147 | Planet Earth Solar | San Clemente | CA | Rooftop Contractor | 2.264 |
| 148 | ReVision Energy | South Portland | Maine | Rooftop Contractor | 2.25 |
| 149 | Paradise Energy Solutions | Paradise | Pennsylvania | EPC | 2.24 |
| 150 | North State Solar Energy | Forest Ranch | California | Construction Firm | 2.2 |
| 151 | Revolve Solar | Austin | TX | Rooftop Contractor | 2.2 |
| 152 | Enchanted Solar | Albuquerque | NM | Construction Firm | 2.2 |
| 153 | mtvSolar | Berkeley Springs, | West Virginia | EPC | 2.197 |
| 154 | GEM Energy | Walbridge | OH | Developer | 2.153 |
| 155 | Air Wind and Solar | Stephenville | TX | EPC | 2.1 |
| 156 | Border Solar | El Paso | TX | EPC | 2.047 |
| 157 | Bella Energy | Boulder | CO | EPC | 2.009 |
| 158 | Meridian Solar | Austin | TX | EPC | 2 |
| 159 | Hudson Solar | Rhinebeck | NY | Rooftop Contractor | 2 |
| 160 | LightWave Solar | Antioch | Tennessee | EPC | 2 |
| 161 | Positive Energy Solar | Santa Fe | New Mexico | Electrical Subcontractor | 2 |
| 162 | Berkowatts Electric | Lakewood | NJ | Electrical Subcontractor | 2 |
| 163 | Everyday Energy | Carlsbad | CA | EPC | 2 |
| 164 | NRG Clean Power | Canoga Park | CA | Rooftop Contractor | 2 |
| 165 | McWire Electric | El Cajon | CA | Electrical Subcontractor | 2 |
| 166 | Milholland Electric | El Cajon | CA | Rooftop Contractor | 2 |
| 167 | South Coast Solar | New Orleans | LA | Rooftop Contractor | 1.999 |
| 168 | Solar-Fit | Daytona Beach | Florida | Rooftop Contractor | 1.9 |
| 169 | Newkirk Electric Associates | Muskegon | MI | EPC | 1.876 |
| 170 | Photonworks Engineering | Honolulu | HI | Construction Firm | 1.783 |
| 171 | Texas Solar Outfitters | Houston | TX | Rooftop Contractor | 1.74 |
| 172 | Empire Renewable Energy | Mesa | AZ | EPC | 1.7 |
| 173 | Arise Solar | Fresno | CA | Rooftop Contractor | 1.7 |
| 174 | Clark EcoEnergy | Lancaster | PA | EPC | 1.7 |
| 175 | Renova Energy | Palm Desert | CA | Rooftop Contractor | 1.7 |
| 176 | Longhorn Solar | Austin | TX | Rooftop Contractor | 1.676 |
| 177 | Solar Impact | Gainesville | FL | EPC | 1.665 |
| 178 | Nova West Solar | Fresno | CA | Rooftop Contractor | 1.64 |
| 179 | Clean Solar | San Jose | California | Rooftop Contractor | 1.606 |
| 180 | Alternative Energy Services | Sanford | FL | EPC | 1.545 |
| 181 | SunGreen Systems | Pasadena | CA | EPC | 1.545 |
| 182 | Maxum Energy | Westlake Village | CA | EPC | 1.5 |
| 183 | Southern Energy Management | Raleigh | NC | Rooftop Contractor | 1.5 |
| 184 | Douglass Colony Group | Commerce City | CO | Rooftop Contractor | 1.5 |
| 185 | Hawaii Energy Smart | Wailuku | HI | Rooftop Contractor | 1.5 |
| 186 | SGE Solar | Milford | Massachusetts | Construction Firm | 1.5 |
| 187 | EPCON Solar | Phoenix | AZ | Electrical Subcontractor | 1.385 |
| 188 | PEP Solar | Phoenix | AZ | Rooftop Contractor | 1.384 |
| 189 | Harvest Energy Solutions | Jackson | MI | EPC | 1.35 |
| 190 | SunFusion Solar Electric | San Diego | CA | Rooftop Contractor | 1.3 |
| 191 | Solar Electric Power Company (SEPCO) | Stuart | FL | Off-Grid Contractor | 1.3 |
| 192 | Bonterra Solar | Honolulu | HI | Rooftop Contractor | 1.3 |
| 194 | Sunvalley Solar | Walnut | CA | Developer | 1.202 |
| 195 | Green Global Communities | Maui | HI | Off-Grid Contractor | 1.2 |
| 196 | PPM Solar | Gainesville | Florida | EPC | 1.2 |
| 197 | SunRenu Solar | Scottsdale | Arizona | EPC | 1.2 |
| 198 | Grasshopper Solar | Toronto | ON | EPC | 1.2 |
| 199 | Black Rock Solar | San Francisco | CA | Non-Profit Contractor | 1.185 |
| 200 | Central California Solar | Tulare | CA | EPC | 1.155 |
| 201 | Independent Power | Boulder | Colorado | EPC | 1.1 |
| 202 | RER Energy Group | Reading | PA | Developer | 1.1 |
| 203 | CB Solar | Des Moines | Iowa | Construction Firm | 1.1 |
| 204 | Solare Energy | San Diego | CA | Electrical Subcontractor | 1.018 |
| 205 | Efficient Energy of Tennessee | Knoxville | TN | EPC | 1 |
| 206 | Got Electric | Ijamsville | Maryland | Electrical Subcontractor | 1 |
| 207 | Energy Conservation Services | Gainesville | FL | EPC | 1 |
| 208 | Pinnacle Exteriors | Allentown | PA | Rooftop Contractor | 1 |
| 209 | Davis Hill Development | Port Chester | NY | Developer | 1 |
| 210 | Fafco Solar | Cape Coral | FL | Rooftop Contractor | 1 |
| 211 | Progressive Power Solutions | American Fork | UT | Rooftop Contractor | 1 |
| 212 | German Solar Corporation | London | Ontario | EPC | 1 |
| 213 | Casey Electric | Tell City | Indiana | Electrical Subcontractor | 1 |
| 214 | German Energy Alternatives Inc. | London | Ontario | Construction Firm | 1 |
| 215 | Sunlight Solar Systems | Salt Lake City | UT | Rooftop Contractor | 1 |
| 216 | SolareAmerica | Upper Darby | PA | EPC | 1 |
| 217 | Alpenglow Solar | Park City | UT | EPC | 1 |
| 218 | Solar Energy Management | Tampa | FL | Construction Firm | 1 |
| 219 | AllCities Solar and Electric | Yakima | WA | Rooftop Contractor | 1 |
| 220 | Honeycomb Solar | Pittsburgh | PA | Rooftop Contractor | 1 |
| 221 | Staten Island Renewable Energy | Staten Island | NY | Construction Firm | 1 |
| 222 | Zia Suns Green Construction | Las Cruces | NM | Construction Firm | 1 |
| 223 | Built Well Solar | Bayville | New York | Rooftop Contractor | 0.98 |
| 224 | 21st Century Power Solutions | Catonsville | MD | Construction Firm | 0.9 |
| 225 | Scudder Solar Energy Systems | Marina | CA | Construction Firm | 0.89 |
| 226 | Convergence Energy | Lake Geneva | WI | Developer | 0.85 |
| 227 | Lifestyle Solar | Fresno | CA | Rooftop Contractor | 0.85 |
| 228 | Magic Sun Solar | Loomis | CA | Construction Firm | 0.85 |
| 229 | Spear Point Energy | Aspen | CO | Developer | 0.844 |
| 230 | SunPower by New York State Solar Farm | Modena | NY | Developer | 0.803 |
| 231 | Eagle Point Solar | Dubuque | Iowa | EPC | 0.8 |
| 232 | Palomar Solar & Roofing | Escondido | California | Rooftop Contractor | 0.8 |
| 233 | ZeroBase Energy | Ferndale | MI | Off-Grid Contractor | 0.765 |
| 234 | Ultra Solar & Wind Solutions | Ocean City | MD | EPC | 0.765 |
| 235 | New England Clean Energy | Hudson | MA | Rooftop Contractor | 0.739 |
| 236 | Artisan Electric | Seattle | WA | Rooftop Contractor | 0.735 |
| 237 | Mass Renewables | Bellingham | MA | Construction Firm | 0.72 |
| 238 | Fresco Solar | Morgan Hill | CA | Developer | 0.7 |
| 239 | ReGreen | Los Angeles | CA | Solar Hot Water Contractor | 0.7 |
| 240 | Earth Wind And Solar Energy | Chicago | IL | Rooftop Contractor | 0.69 |
| 241 | Plan It Solar | Grass Valley | CA | Construction Firm | 0.672 |
| 242 | Gunn Electric | Pineville | LA | Electrical Subcontractor | 0.654 |
| 243 | Carbon Vision | Shaker Heights | OH | Developer | 0.651 |
| 244 | Helios Solar | Kalamazoo | MI | EPC | 0.65 |
| 245 | Vis Solis | Franklin | TN | Developer | 0.6 |
| 246 | Sunsense Solar | Carbondale | Colorado | EPC | 0.6 |
| 247 | Mr. Sun Solar | Portland | OR | Construction Firm | 0.6 |
| 248 | Tiger Solar | Charlottesville | VA | Construction Firm | 0.6 |
| 249 | NW Wind & Solar | Seattle | WA | Construction Firm | 0.6 |
| 250 | Kenergy Solar | Washington | DC | Developer | 0.6 |
| 251 | SunCraft Solar | Poway | CA | Rooftop Contractor | 0.59 |
| 252 | Solarponics | Atascadero | California | Rooftop Contractor | 0.569 |
| 253 | Greenbelt Solar | Austin | TX | EPC | 0.56 |
| 254 | EIS Solar | Pittsburgh | Pennsylvania | Rooftop Contractor | 0.553 |
| 255 | New Day Solar | Murrieta | CA | Rooftop Contractor | 0.55 |
| 256 | Epic Solar | Tracy | CA | Rooftop Contractor | 0.55 |
| 257 | Robco Electric | Las Vegas | Nevada | Rooftop Contractor | 0.53 |
| 258 | Atlasta Solar Center | Grand Junction | Colorado | Rooftop Contractor | 0.5 |
| 259 | Maui Solar Project | Kahului | HI | Rooftop Contractor | 0.5 |
| 260 | Moore Energy | Southampton | PA | EPC | 0.5 |
| 261 | Oak Electric | Waterford | MI | Developer | 0.5 |
| 262 | You Save Green | Albertson | NY | Rooftop Contractor | 0.5 |
| 263 | SOLeenic | San Bruno | CA | EPC | 0.5 |
| 264 | Greenwired | Redway | CA | Off-Grid Contractor | 0.5 |
| 265 | SkyPower | Scottsdale | AZ | Rooftop Contractor | 0.5 |
| 266 | IQ Power | Sanford | FL | Solar Hot Water Contractor | 0.5 |
| 267 | Yes Solar Solutions | Cary | North Carolina | Rooftop Contractor | 0.5 |
| 268 | RenuEn Corp | Jupiter | FL | EPC | 0.5 |
| 269 | Current Electric | Wauwatosa | Wisconsin | Electrical Subcontractor | 0.47 |
| 270 | Creative Energies | Lander | Wyoming | Construction Firm | 0.455 |
| 271 | Capital City Solar | Roseville | CA | Rooftop Contractor | 0.45 |
| 272 | Powerlutions Solar | Lakewood | New Jersey | EPC | 0.45 |
| 273 | Impact Power Solutions | Roseville | MN | EPC | 0.45 |
| 274 | SolarGaines | Baltimore | MD | EPC | 0.45 |
| 275 | Cape Fear Energy Systems | Wilmington | North Carolina | Rooftop Contractor | 0.45 |
| 276 | Solar Trek | Ocala | FL | Rooftop Contractor | 0.445 |
| 277 | Peak View Solar | Colorado Springs | CO | Developer | 0.43 |
| 278 | EcoLogical Energy Systems | Bristol | TN | EPC | 0.425 |
| 279 | Florida Power Services | Tampa | FL | Construction Firm | 0.4 |
| 280 | Solar Electric Systems & Products | Mesa | AZ | EPC | 0.4 |
| 281 | Simply Solar Of Maryland | Edgewood | MD | Electrical Subcontractor | 0.4 |
| 282 | Stellar Energy Contractors | Denver | CO | Rooftop Contractor | 0.4 |
| 283 | LightDay Solar | Tempe | AZ | EPC | 0.386 |
| 284 | Active Solar | San Juan Capistrano | CA | Rooftop Contractor | 0.377 |
| 285 | Asia-Pacific Energy Group | Hagatna | GU | EPC | 0.375 |
| 286 | GES Solar | Knoxville | TN | Construction Firm | 0.375 |
| 287 | Whidbey Sun & Wind | Coupeville | WA | Construction Firm | 0.351 |
| 288 | American Sentry Solar | Bel Air | Maryland | Solar Hot Water Contractor | 0.35 |
| 289 | AA SOLAR | Danville | IL | Developer | 0.35 |
| 290 | Peak Solar Designs | Salida | CO | Construction Firm | 0.35 |
| 291 | Frontier Solar | San Jose | CA | Electrical Subcontractor | 0.35 |
| 292 | Green State Power | Greensboro | NC | EPC | 0.35 |
| 293 | Solar Odyssey | Stafford | TX | Rooftop Contractor | 0.35 |
| 294 | LuxLight Solar Energy | Lockeford | CA | Construction Firm | 0.336 |
| 295 | Southface Solar Electric | Phoenix | AZ | Rooftop Contractor | 0.325 |
| 296 | srinergy | Novi | MI | Developer | 0.325 |
| 297 | Green Power Energy | Annadale | New Jersey | EPC | 0.315 |
| 298 | A1A Solar Contracting | Jacksonville | FL | Rooftop Contractor | 0.309 |
| 299 | STR Systems | Poughkeepsie | NY | Construction Firm | 0.302 |
| 300 | Barnes Solar | Irvine | CA | Construction Firm | 0.3 |
| 301 | American Solar and Alternative Energies | Cumming | GA | Rooftop Contractor | 0.3 |
| 302 | 2K Solar | Middletown | NY | Rooftop Contractor | 0.3 |
| 303 | Appalachian Renewable Resources | Knoxville | TN | Rooftop Contractor | 0.3 |
| 304 | Thames Solar Electric | Denver | CO | Off-Grid Contractor | 0.3 |
| 305 | Great Canadian Solar | Edmonton | AB | EPC | 0.3 |
| 306 | EFS Energy | St. Louis | MO | Rooftop Contractor | 0.3 |
| 307 | Hire Electric | The Dalles | OR | Electrical Subcontractor | 0.298 |
| 308 | Simpler Solar Systems | Tallahassee | FL | Off-Grid Contractor | 0.29 |
| 309 | Skytech Solar | San Francisco | CA | Rooftop Contractor | 0.27 |
| 310 | Sol-Up | Las Vegas | Nevada | Rooftop Contractor | 0.27 |
| 311 | Renu Energy Solutions | Charlotte | North Carolina | EPC | 0.26 |
| 312 | Solora Solar | Yakima | WA | Construction Firm | 0.26 |
| 313 | YellowLite | Cleveland | Ohio | Rooftop Contractor | 0.252 |
| 314 | A National Electric Service | Pompano Beach | FL | Developer | 0.25 |
| 315 | Mirasol FAFCO Solar | Nokomis | FL | EPC | 0.25 |
| 316 | GC Solar | Bellevue | WA | Construction Firm | 0.25 |
| 317 | Solar Generation | Kingston | NY | Construction Firm | 0.25 |
| 318 | Smart Energy of New England | Columbia | NH | Off-Grid Contractor | 0.25 |
| 319 | Solar Sales of Michigan | Davison | MI | Rooftop Contractor | 0.25 |
| 320 | Exact Solar | Newtown | Pennsylvania | Solar Hot Water Contractor | 0.25 |
| 321 | Solar Watt Solutions | Carlsbad | NV | Rooftop Contractor | 0.25 |
| 322 | Southern Light Solar | New Bedford | MA | Developer | 0.25 |
| 323 | Energy Conservation Solutions (ECS Solar) | Mooresville | NC | Off-Grid Contractor | 0.25 |
| 324 | Solar by CIR | Grand Island | NY | Rooftop Contractor | 0.249 |
| 325 | Southern Solar Systems | Huntsville | AL | EPC | 0.24 |
| 326 | Mechanical Energy Systems | Canton | MI | Rooftop Contractor | 0.225 |
| 327 | Go Solar Group | Salt Lake City | UT | Rooftop Contractor | 0.22 |
| 328 | Peka Solar and Renewable Energy | Naples | FL | Off-Grid Contractor | 0.2 |
| 329 | Sierra Solar Systems | Reno | NV | EPC | 0.2 |
| 330 | Flatiron Solar | Boulder | CO | Solar Hot Water Contractor | 0.2 |
| 331 | Barrus Solar | Long Beach | CA | Rooftop Contractor | 0.2 |
| 332 | That Solar Guy | Murrieta | CA | Rooftop Contractor | 0.2 |
| 333 | ARiES Energy | Knoxville | TN | Developer | 0.2 |
| 334 | Green Conception | Burbank | CA | Rooftop Contractor | 0.2 |
| 335 | Skyline Energy Savers | El Dorado Hills | CA | Rooftop Contractor | 0.2 |
| 336 | Electric Distribution & Design Systems | Garland | TX | Electrical Subcontractor | 0.2 |
| 337 | ES Electric & Solar | Penryn | CA | Construction Firm | 0.195 |
| 338 | CalSun Electric & Solar Systems | Paso Robles | CA | Electrical Subcontractor | 0.195 |
| 339 | Texas Green Energy | College Station | Texas | Developer | 0.192 |
| 340 | Brightstar Solar | Marlborough | Massachusetts | Rooftop Contractor | 0.188 |
| 341 | Earth Electric | San Jose | California | Rooftop Contractor | 0.186 |
| 342 | Southard Solar and Construction | Denver | CO | Rooftop Contractor | 0.183 |
| 343 | California Sun Systems | Los Angeles | CA | Rooftop Contractor | 0.178 |
| 344 | GenPro Energy Solutions | Piedmont | South Dakota | Electrical Subcontractor | 0.175 |
| 345 | SunWork Renewable Energy Projects | Milpitas | CA | Rooftop Contractor | 0.16 |
| 346 | South Sound Solar | Olympia | Washington | Rooftop Contractor | 0.15 |
| 347 | Solar Technology Alabama | Eva | AL | Off-Grid Contractor | 0.15 |
| 348 | Sol Providers | Wappingers Falls | NY | EPC | 0.15 |
| 349 | Run on Sun | Pasadena | CA | Rooftop Contractor | 0.15 |
| 350 | Solar Advantage | Metairie | LA | EPC | 0.15 |
| 351 | Abundant Energy | Jupiter | FL | Rooftop Contractor | 0.145 |
| 352 | GleanPower | Denton | TX | Rooftop Contractor | 0.144 |
| 353 | Hyperion Energy Solutions | Bellville | OH | Construction Firm | 0.142 |
| 354 | Michigan Solar Solutions | Commerce Twp | Michigan | Rooftop Contractor | 0.141 |
| 355 | Wray Industries | Ellensburg | WA | Electrical Subcontractor | 0.137 |
| 356 | Elemental Energy | Portland | Oregon | Rooftop Contractor | 0.132 |
| 357 | Colored Solar | Ventura | CA | Rooftop Contractor | 0.13 |
| 358 | Sundial Solar Power Development | Jackson | MS | Developer | 0.13 |
| 359 | Windsun Energy Systems | Carlsbad | CA | Construction Firm | 0.12 |
| 360 | Morton Solar | Evansville | Indiana | Rooftop Contractor | 0.12 |
| 361 | Maine Solar Solutions | Freeport | Maine | EPC | 0.12 |
| 362 | Clean Footprint | Cape Canaveral | FL | Developer | 0.117 |
| 363 | Sunshine Saves | Tega Cay | SC | Construction Firm | 0.114 |
| 364 | Maryland Solar Solutions | Owings Mills | MD | Developer | 0.112 |
| 365 | Affordable Solar Contracting | Wahiawa | HI | Solar Hot Water Contractor | 0.1 |
| 367 | Millennium Solar Electric | Park Forest | IL | Electrical Subcontractor | 0.1 |
| 368 | ECG Solar | Anamosa | Iowa | Construction Firm | 0.1 |
| 369 | Granite State Solar | Bow | NH | Solar Hot Water Contractor | 0.1 |
| 370 | Green Energy EPC | San Diego | CA | EPC | 0.1 |
| 371 | Mariner Energy Systems | Medina | OH | Developer | 0.1 |
| 372 | PPC Solar | Taos | New Mexico | EPC | 0.096 |
| 373 | Winona Renewable Energy | Winona | MN | EPC | 0.09 |
| 374 | Beehive Technical Services | Las Cruces | NM | Electrical Subcontractor | 0.088 |
| 375 | Power Star Solar | Orange County | CA | Rooftop Contractor | 0.086 |
| 376 | Sunshine Works | Winchester | TN | Off-Grid Contractor | 0.084 |
| 377 | Belmont Solar | Gordonville | Pennsylvania | Off-Grid Contractor | 0.084 |
| 378 | Main Street Solar | Fincastle | VA | Rooftop Contractor | 0.08 |
| 379 | Sun Dollar Energy | Raleigh | NC | Rooftop Contractor | 0.08 |
| 380 | Solar Surfers | Nyssa | OR | Rooftop Contractor | 0.079 |
| 381 | Save a Lot Solar | Oakland | CA | Rooftop Contractor | 0.078 |
| 382 | Solartronics | Thousand Oaks | CA | Construction Firm | 0.075 |
| 383 | VB Solar | boca raton | FL | EPC | 0.075 |
| 384 | Falmouth Solar | E. Falmouth | MA | Rooftop Contractor | 0.068 |
| 385 | Frederickson Electric | Port Townsend | WA | Rooftop Contractor | 0.067 |
| 386 | SolarSmith | Savannah | GA | Rooftop Contractor | 0.052 |
| 387 | California Solar | Grass Valley | CA | Rooftop Contractor | 0.05 |
| 388 | Solarwerks | Chicago | IL | Solar Hot Water Contractor | 0.05 |
| 389 | Solar Choice USA | Atlanta | GA | Rooftop Contractor | 0.05 |
| 390 | Harvest Solar and Wind Power | Tulsa | OK | EPC | 0.05 |
| 391 | Entech Electronics | Dallas | TX | Electrical Subcontractor | 0.05 |
| 392 | Bella Solar | Jupiter | FL | Solar Hot Water Contractor | 0.05 |
| 393 | Excel Earth Energy | Long Beach | NY | EPC | 0.049 |
| 394 | Evergreen Sun Power | Centennial | CO | Rooftop Contractor | 0.047 |
| 395 | Solar States | Philadelphia | PA | EPC | 0.04 |
| 396 | Get Me Solar | Upland | CA | Construction Firm | 0.032 |
| 397 | Abbott Electric | Denton | TX | Electrical Subcontractor | 0.032 |
| 398 | Pennsylvania Solar Energy Co. | Washington | Pennsylvania | Rooftop Contractor | 0.032 |
| 399 | Ocean Solar | Linwood | New Jersey | Developer | 0.03 |
| 400 | Sunnyside Solar | Louisville | CO | Rooftop Contractor | 0.03 |