This is the list of 2017 Top Solar Contractors that are headquartered in California. These companies may also work in different states. The listed kilowatts installed by each company could come from installations in states outside of just California.
The companies below are a segmented portion of the overall 2017 Top 500 Solar Contractors list, organized by kilowatts (DC) installed in 2016.
| Rank | Company | Overall Rank | City | State | Employees | Primary Market | Primary Service | Total kW Installed | kW installed in 2016 |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SOLV Energy | 2 | San Diego | CA | 315 | Utility | EPC | 20,013,910.00 | 1.00 |
| 2 | SunPower | 5 | San Jose | CA | 7000 | Commercial | Developer | 4.00 | 1.00 |
| 3 | Rosendin Electric | 6 | San Jose | CA | 6000 | Utility | EPC | 8,317,712.00 | 978.00 |
| 4 | Cypress Creek Renewables | 8 | Santa Monica | CA | 230 | Utility | Developer | 2.00 | 719.00 |
| 5 | Baker Electric | 9 | Escondido | CA | 800 | Utility | Electrical Subcontractor | 5,517,410.00 | 707.00 |
| 6 | Arraycon | 12 | Sacramento | CA | 200 | Utility | Installation Subcontractor | 2,974,034.20 | 560.00 |
| 7 | Helix Electric | 13 | San Diego | CA | 2100 | Utility | EPC | 2,600,000.00 | 503.00 |
| 8 | Clark Bros. | 14 | Dos Palos | CA | 120 | Commercial | Installation Subcontractor | 944.00 | 424.00 |
| 9 | CSI Electrical Contractors | 21 | Santa Fe Springs | CA | 1000 | Utility | Electrical Subcontractor | 2,340,900.00 | 281.00 |
| 10 | Cupertino Electric | 40 | San Jose | CA | 2100 | Utility | EPC | 4,044,983.00 | 127.00 |
| 11 | A-C Solar | 42 | Bakersfield | CA | 280 | Commercial | EPC | 261.00 | 101.00 |
| 12 | REC Solar | 46 | San Luis Obispo | CA | 124 | Commercial | EPC | 700,000.00 | 75.00 |
| 13 | Blue Oak Energy | 52 | Davis | CA | 57 | Utility | EPC | 105.00 | 55.00 |
| 14 | Cenergy Power | 55 | Carlsbad | CA | 50 | Commercial | EPC | 382,758.00 | 49.00 |
| 15 | Ecoplexus | 58 | San Francisco | CA | 52 | Utility | Developer | 221.00 | 45.00 |
| 16 | M Bar C Construction | 59 | San Marcos | CA | 122 | Commercial | Installation Subcontractor | 927,440.00 | 41.00 |
| 17 | Sunstall | 62 | Novato | CA | 28 | Commercial | Installation Subcontractor | 711,000.00 | 37.00 |
| 18 | Petersen-Dean | 64 | Fremont | CA | 2500 | Residential | Rooftop Contractor | 283,437.10 | 33.00 |
| 19 | Baja Construction | 65 | Martinez | CA | 150 | Commercial | Installation Subcontractor | 496,943.00 | 32.00 |
| 20 | CalCom Energy | 70 | Fresno | CA | 60 | Commercial | EPC | 178,211.00 | 28.00 |
| 21 | JKB Energy | 71 | Turlock | CA | 55 | Commercial | EPC | 90.00 | 27.00 |
| 22 | Elite Electric | 75 | Riverside | CA | 134 | Commercial | EPC | 412,905.00 | 23.00 |
| 23 | Solar Optimum | 79 | Glendale | CA | 80 | Commercial | EPC | 428,000.00 | 21.00 |
| 24 | Horizon Solar Power | 81 | Temecula | CA | 675 | Residential | Rooftop Contractor | 53.00 | 20.00 |
| 25 | Kuykendall Solar | 83 | Coarsegold | CA | 50 | Commercial | Electrical Subcontractor | 92,094.00 | 19.00 |
| 26 | Baker Home Energy | 89 | Escondido | CA | 162 | Residential | Rooftop Contractor | 168,616.00 | 16.00 |
| 27 | PowerFlex | 90 | San Diego | CA | 50 | Commercial | Developer | 478,413.00 | 15.00 |
| 28 | Sun Solar Energy Solutions | 91 | Bakersfield | CA | 80 | Residential | Rooftop Contractor | 43.00 | 15.00 |
| 29 | Semper Solaris | 92 | El Cajon | CA | 275 | Residential | Rooftop Contractor | 237,910.00 | 15.00 |
| 30 | Pickett Solar | 94 | Fresno | CA | 20 | Commercial | EPC | 116,401.00 | 14.00 |
| 31 | Shorebreak Energy Developers | 101 | Santa Ana | CA | 80 | Commercial | Developer | 95,310.98 | 13.00 |
| 32 | PFMG Solar | 110 | Huntington Beach | CA | 25 | Commercial | Developer | 76.00 | 10.00 |
| 33 | Orion Carport Systems & Construction | 113 | Los Angeles | CA | 20 | Commercial | EPC | 20.00 | 10.00 |
| 34 | Terra Steward | 114 | San Diego | CA | 24 | Commercial | EPC | 26.00 | 9.00 |
| 35 | SouthWest Sun Solar | 115 | Garden Grove | CA | 100 | Residential | EPC | 35,000.00 | 9.00 |
| 36 | Newport Power | 117 | San Clemente | CA | 28 | Commercial | Installation Subcontractor | 88,000.00 | 9.00 |
| 37 | Sustineo Construction | 123 | San Diego | CA | 27 | Commercial | EPC | 100,000.00 | 8.00 |
| 38 | GCI Solar | 125 | Huntington Beach | CA | 160 | Residential | EPC | 60.00 | 8.00 |
| 39 | Stellar Solar | 127 | Oceanside | CA | 75 | Residential | Rooftop Contractor | 872,000.00 | 8.00 |
| 40 | SolarMax Technology | 129 | Riverside | CA | 175 | Residential | Developer | 99,217.00 | 8.00 |
| 41 | American Solar Direct | 135 | Anaheim | CA | 134 | Residential | Rooftop Contractor | 36.00 | 7.00 |
| 42 | Renova Energy | 137 | Palm Desert | CA | 151 | Residential | Installation Subcontractor | 223,008.00 | 7.00 |
| 43 | PermaCity | 144 | Los Angeles | CA | 12 | Commercial | Developer | 84.00 | 7.00 |
| 44 | West Coast Solar | 145 | Brentwood | CA | 29 | Residential | EPC | 20.00 | 7.00 |
| 45 | NRG Clean Power | 151 | Canoga Park | CA | 120 | Residential | Rooftop Contractor | 25,000.00 | 6.00 |
| 46 | GRID Alternatives | 153 | Oakland | CA | 350 | Residential | Rooftop Contractor | 78,481.00 | 6.00 |
| 47 | SunSystem Technology | 154 | Rancho Cordova | CA | 155 | Commercial | Installation Subcontractor | 23.00 | 6.00 |
| 48 | M.B. Herzog Electric | 155 | Paramount | CA | 220 | Commercial | Electrical Subcontractor | 71,626.00 | 6.00 |
| 49 | Alternative Energy Systems | 156 | Chico | CA | 85 | Residential | EPC | 43.00 | 6.00 |
| 50 | Milholland Electric | 158 | El Cajon | CA | 45 | Residential | Rooftop Contractor | 24,686.70 | 6.00 |
| 51 | Freedom Forever | 164 | Temecula | CA | 120 | Residential | EPC | 1,497,000.00 | 5.00 |
| 52 | LA Solar Group | 165 | San Fernando | CA | 75 | Residential | Rooftop Contractor | 150,000.00 | 5.00 |
| 53 | Infinity Energy | 168 | Rocklin | CA | 160 | Residential | Rooftop Contractor | 123,549.74 | 5.00 |
| 54 | Kurios Energy | 169 | Manteca | CA | 80 | Residential | EPC | 15.00 | 5.00 |
| 55 | Solar Technologies | 171 | San Ramon | CA | 65 | Commercial | Developer | 72,006.00 | 5.00 |
| 56 | Sunvalley Solar | 175 | Walnut | CA | 22 | Commercial | EPC | 15.00 | 5.00 |
| 57 | Stronghold Engineering | 178 | Perris | CA | 180 | Commercial | EPC | 41,166.52 | 5.00 |
| 58 | Palomar Solar & Roofing | 180 | Escondido | CA | 26 | Residential | Rooftop Contractor | 29,534.00 | 4.00 |
| 59 | Sun First Solar | 182 | San Rafael | CA | 33 | Residential | Rooftop Contractor | 23.00 | 4.00 |
| 60 | Smart Energy Solar | 187 | Corona | CA | 150 | Residential | Rooftop Contractor | 35.00 | 4.00 |
| 61 | SunFusion Solar Electric | 190 | San Diego | CA | 32 | Residential | Rooftop Contractor | 15.00 | 4.00 |
| 62 | Arise Solar | 191 | Fresno | CA | 63 | Residential | Rooftop Contractor | 19.00 | 4.00 |
| 63 | Sun Integration | 198 | Sherman Oaks | CA | 15 | Commercial | EPC | 26.00 | 4.00 |
| 64 | Maxum Energy | 201 | Westlake Village | CA | 44 | Commercial | EPC | 247.00 | 3.00 |
| 65 | Connector Electric (CE Solar) | 204 | Upland | CA | 11 | Residential | EPC | 46.00 | 3.00 |
| 66 | ecoSolargy | 206 | Irvine | CA | 25 | Commercial | EPC | 7.00 | 3.00 |
| 67 | North State Solar Energy | 207 | Forest Ranch | CA | 22 | Commercial | EPC | 29,197.00 | 3.00 |
| 68 | SunGreen Systems | 212 | Pasadena | CA | 9 | Commercial | EPC | 10.00 | 3.00 |
| 69 | Sun Light & Power | 213 | Berkeley | CA | 84 | Commercial | EPC | 54,351.00 | 3.00 |
| 70 | Westcoast Solar Energy | 214 | Santa Rosa | CA | 18 | Commercial | EPC | 17,751.84 | 3.00 |
| 71 | Renewable Energy Partners | 215 | Corona | CA | 25 | Commercial | EPC | 120,000.00 | 3.00 |
| 72 | American Solar Power | 217 | Los Angeles | CA | 62 | Commercial | EPC | 37,017.00 | 3.00 |
| 73 | Sunline Energy | 218 | San Diego | CA | 45 | Residential | EPC | 50,000.00 | 3.00 |
| 74 | Northern Pacific Power Systems | 222 | Santa Rosa | CA | 20 | Residential | EPC | 15.00 | 3.00 |
| 75 | SolarTech | 223 | El Cajon | CA | 55 | Residential | Rooftop Contractor | 80,000.00 | 3.00 |
| 76 | California Home Solar | 225 | Sherman Oaks | CA | 20 | Residential | Installation Subcontractor | 7,629.00 | 3.00 |
| 77 | Sun Source Electric | 233 | Martinez | CA | 25 | Commercial | Electrical Subcontractor | 12.00 | 2.00 |
| 78 | Trinity Power | 234 | Fresno | CA | 19 | Residential | Installation Subcontractor | 55,594.00 | 2.00 |
| 79 | Scudder Solar Energy Systems | 235 | Marina | CA | 25 | Commercial | Installation Subcontractor | 35,277.00 | 2.00 |
| 80 | CitiGreen | 242 | Auburn | CA | 10 | Commercial | Developer | 21,899.00 | 2.00 |
| 81 | Cosmic Solar | 246 | Vista | CA | 20 | Residential | Rooftop Contractor | 33,795.00 | 2.00 |
| 82 | Clean Solar | 252 | San Jose | CA | 44 | Residential | Rooftop Contractor | 28,061.00 | 2.00 |
| 83 | Sol Reliable | 256 | Valley Village | CA | 75 | Residential | Rooftop Contractor | 9.00 | 2.00 |
| 84 | PacificSky Solar | 262 | Canoga Park | CA | 50 | Residential | Rooftop Contractor | 12.00 | 2.00 |
| 85 | Solaire Energy Systems | 267 | San Diego | CA | 50 | Residential | Rooftop Contractor | 8.00 | 1.00 |
| 86 | Solar West Electric | 269 | San Diego | CA | 30 | Residential | EPC | 7.00 | 1.00 |
| 87 | Spectrum Energy Development | 275 | Elk Grove | CA | 6 | Commercial | Developer | 16.00 | 1.00 |
| 88 | AWS Solar | 276 | Los Angeles | CA | 16 | Residential | Rooftop Contractor | 5.00 | 1.00 |
| 89 | Solarponics | 279 | Atascadero | CA | 43 | Residential | EPC | 23,200.00 | 1.00 |
| 90 | Fresco Solar | 283 | Morgan Hill | CA | 20 | Commercial | EPC | 4.00 | 1.00 |
| 91 | Aztec Solar | 286 | Rancho Cordova | CA | 35 | Residential | Rooftop Contractor | 15.00 | 1.00 |
| 92 | Allterra Solar | 288 | Santa Cruz | CA | 36 | Residential | EPC | 19,186.00 | 1.00 |
| 93 | Magic Sun Solar | 289 | Loomis | CA | 13 | Residential | EPC | 16,145.00 | 1.00 |
| 94 | New Day Solar | 294 | Murrieta | CA | 24 | Residential | Rooftop Contractor | 26,593.00 | 1.00 |
| 95 | Pell Solar | 296 | Ontario | CA | 26 | Residential | Installation Subcontractor | 8.00 | 1.00 |
| 96 | A.M. Sun Solar | 303 | Paso Robles | CA | 42 | Residential | EPC | 47,412.00 | 1.00 |
| 97 | HES Renewables | 314 | San Diego | CA | 16 | Residential | Electrical Subcontractor | 53,391.00 | 1.00 |
| 98 | SolarHut | 318 | Diamond Springs | CA | 8 | Residential | Rooftop Contractor | 3,000.00 | 1.00 |
| 99 | Highlight Solar | 321 | San Jose | CA | 12 | Residential | EPC | 11,959.00 | 1.00 |
| 100 | California Solar | 340 | Grass Valley | CA | 26 | Residential | Rooftop Contractor | 10,248.00 | 1.00 |
| 101 | Skytech Solar | 350 | San Francisco | CA | 11 | Residential | Rooftop Contractor | 7.00 | 1.00 |
| 102 | Green Electric Solar Solutions | 361 | San Diego | CA | 23 | Residential | EPC | 4.00 | 1.00 |
| 103 | Sunergy Construction | 363 | Riverside | CA | 75 | Residential | Rooftop Contractor | 1.00 | 1.00 |
| 104 | Pure Power Solutions | 369 | Healdsburg | CA | 14 | Residential | Installation Subcontractor | 5.00 | 938.00 |
| 105 | AMECO Solar | 375 | Paramount | CA | 20 | Residential | EPC | 12.00 | 890.00 |
| 106 | Solar Grid USA | 383 | Hayward | CA | 25 | Residential | Installation Subcontractor | 3,682.60 | 850.00 |
| 107 | Planet Earth Solar | 390 | San Clemente | CA | 4 | Residential | EPC | 6.00 | 755.00 |
| 108 | SolarNorcal | 395 | Meadow Vista | CA | 8 | Residential | EPC | 2.00 | 710.00 |
| 109 | SunOn Energy | 410 | Anderson | CA | 20 | Residential | EPC | 3,163.00 | 604.00 |
| 110 | Unique Solar | 415 | San Diego | CA | 10 | Residential | Rooftop Contractor | 3,180.00 | 584.00 |
| 111 | SunWork Renewable Energy Projects | 428 | Milpitas | CA | 8 | Residential | Rooftop Contractor | 5,009.24 | 490.00 |
| 112 | Laibach Solar | 430 | El Dorado Hills | CA | 3 | Residential | Rooftop Contractor | 2.00 | 470.00 |
| 113 | California Solar Electric | 436 | Ojai | CA | 21 | Residential | Rooftop Contractor | 8.00 | 436.00 |
| 114 | Green Energy EPC | 438 | San Diego | CA | 12 | Residential | EPC | 1.00 | 430.00 |
| 115 | RBS Solar | 444 | Los Angeles | CA | 3 | Commercial | EPC | 1.00 | 400.00 |
| 116 | Cinnamon Energy Systems | 446 | Campbell | CA | 9 | Residential | EPC | 1.00 | 398.00 |
| 117 | Earth Electric | 456 | San Jose | CA | 6 | Residential | Rooftop Contractor | 5,413.00 | 347.00 |
| 118 | Vasco Solar | 458 | Fountain Valley | CA | 9 | Residential | Rooftop Contractor | 4,192.00 | 346.00 |
| 119 | Sustainable Technologies | 463 | Alameda | CA | 8 | Commercial | EPC | 1.00 | 320.00 |
| 120 | Clayco Electric | 465 | Alpine | CA | 7 | Residential | EPC | 14,000.00 | 312.00 |
| 121 | CalSun Electric & Solar Systems | 468 | Paso Robles | CA | 7 | Residential | EPC | 1.00 | 297.00 |
| 122 | California Sun Systems | 472 | Los Angeles | CA | 5 | Commercial | Rooftop Contractor | 4.00 | 285.00 |
| 123 | SOLEX | 475 | Pacific Grove | CA | 10 | Residential | Rooftop Contractor | 1.00 | 270.00 |
| 124 | Green Air | 476 | Concord | CA | 11 | Residential | Installation Subcontractor | 3.00 | 268.00 |
| 125 | Save a Lot Solar | 477 | Oakland | CA | 5 | Residential | Rooftop Contractor | 5,834.00 | 268.00 |
| 126 | ES Electric & Solar | 478 | Penryn | CA | 5 | Residential | EPC | 1.00 | 259.00 |
| 127 | Addy Electric | 480 | Redding | CA | 11 | Residential | EPC | 2.00 | 253.00 |
| 128 | LuxLight Solar Energy | 483 | Lockeford | CA | 7 | Residential | EPC | 2,284.00 | 240.00 |
| 129 | Green Water and Power | 489 | Los Angeles | CA | 5 | Commercial | EPC | 1,788.00 | 208.00 |
| 130 | A1 Sun | 490 | Berkeley | CA | 10 | Residential | EPC | 3.00 | 207.00 |
| 131 | YouVee Solar | 495 | Ridgecrest | CA | 3 | Residential | Rooftop Contractor | 1,500.00 | 180.00 |