Top cities: San Francisco (83) · San Diego (60) · San Jose (49) · Los Angeles (42) · Sacramento (37) · Irvine (36)
Companies by category
| Company | City | Website |
|---|
| Rincon Consultants | San Luis Obispo | Visit site |
| Rincon Consultants | Santa Barbara | Visit site |
| RME Innovations Inc. dba Singh’s Solar | Sacramento | Visit site |
| Roboteos Inc. | Costa Mesa | Visit site |
| Roboteos Inc. | · | Visit site |
| Romeo Power, Inc. (acquired by Nikola Corporation) | Santa Clara | Visit site |
| Rondo Energy | Oakland | Visit site |
| Roshanian and Associates, Inc. - MEPT Engineers | Calabasas | Visit site |
| RoviSys | Thousand Oaks | Visit site |
| Royal Electric Company | Sacramento | Visit site |
| RPS Solar Pumps | Woodland | Visit site |
| RRE Inc Electrical Contractor | Pleasant Grove | Visit site |
| RRE Inc Electrical Contractor | North Highlands | Visit site |
| RSJ Global | Walnut Creek | · |
| Runhood Power Inc. | Walnut | Visit site |
| S2 Systems, Inc. | Orange | Visit site |
| S3: Shah Structural Solutions | La Cañada Flintridge | Visit site |
| Salas O'Brien | Irvine | Visit site |
| Sandbar Solar & Electric | Santa Cruz | Visit site |
| Sanmina | San Jose | Visit site |
| Sanyo Denki | Torrance | Visit site |
| SB Energy | San Francisco | Visit site |
| SCC Electric | Novato | Visit site |
| SCS Engineers | Long Beach | Visit site |
| Scudder Solar Energy Systems | Marina | Visit site |
| Select Solar Professionals | Ione | Visit site |
| Semper Solaris | El Cajon | Visit site |
| Senga Energy | El Dorado Hills | Visit site |
| SenseHawk | Campbell | Visit site |
| Shenzhen RJC Industrial CO., LTD | Lake Forest | Visit site |
| Shivam Photovoltaics | Redway | Visit site |
| Shyft Power Solutions | San Francisco | Visit site |
| Sierra Energy | Davis | Visit site |
| Sierra Power Services | Foresthill | Visit site |
| SierraThermal, Inc. | Watsonville | Visit site |
| Sila | Alameda | · |
| Silverline Solar | Studio City | Visit site |
| Simply Solar | Petaluma | Visit site |
| SINAI Technologies | San Francisco | Visit site |
| Sinotec Solar | Hacienda Heights | Visit site |
| Sirocco Energy | Palo Alto | · |
| SiteCapture | Oakland | Visit site |
| Siviniti | Napa | Visit site |
| Skwentex International Company | San Jose | Visit site |
| SLD Tech Inc | Ontario | Visit site |
| SOK Battery | Ontario | Visit site |
| Solactron | San Jose | Visit site |
| Solar Blueprints | Los Angeles | · |
| Solar Carports Direct | Cottonwood | Visit site |
| Solar Connect | Sacramento | Visit site |
| Solar Engineering Consultants | San Diego | Visit site |
| Solar Engineering, LLC | Fresno | Visit site |
| Solar Forward | Santa Monica | · |
| Solar Grazing Solutions Inc. | Ontario | · |
| Solar Head of State | Oakland | Visit site |
| Solar Installation Group, Inc. | Oakdale | Visit site |
| Solar Journey | Sherman Oaks | Visit site |
| Solar Maintenance Pros DBA Solar Negotiators | Fresno | Visit site |
| Solar Optimum | Glendale | · |
| Solar Permit Services | Lee Vining | Visit site |
| Solar Power Investor | Santa Clara | · |
| Solar Pros | Los Angeles | · |
| Solar Rating and Certification Corporation | Brea | Visit site |
| Solar Roof Dynamics | Davis | Visit site |
| Solar Shade Structures | San Jose | Visit site |
| SOLAR SOURCE® | Long Beach | Visit site |
| Solar Technologies | San Ramon | Visit site |
| Solar Turbines | San Diego | Visit site |
| Solar-Tec Systems, Inc. | Laguna Hills | Visit site |
| Solar4America | McClellan | Visit site |
| SolaRack®️ | Drytown | Visit site |
| SolarCity | San Mateo | Visit site |
| SolarFusion Group | Santa Monica | Visit site |
| SolarGrade | Carlsbad | Visit site |
| SolarJobRecruiter | San Diego | Visit site |
| Solarland USA | Ontario | Visit site |
| SolarMax Technology | Riverside | Visit site |
| SolarQuote Installation & Maintenance | Fresno | Visit site |
| SolarStrap Technologies LLC | Commerce | Visit site |
| Solartech Power | Ontario | Visit site |
| SolarUnion | San Francisco | Visit site |
| SolaTrim | Rocklin | · |
| Solcius (EnergyAid) | Santa Ana | · |
| Soleil Renewable Energy | Los Angeles | Visit site |
| Solenso | San Jose | Visit site |
| Soliculture | Santa Cruz | Visit site |
| SoloGrid, Inc. | San Ramon | · |
| SOLWEL | Pleasanton | Visit site |
| Sonocharge Energy | Lafayette | Visit site |
| South 8 Technologies | San Diego | · |
| Spitzer Energy Company | Ontario | Visit site |
| Splash Floating Solar | San Francisco | Visit site |
| SRECTrade, Inc. | San Francisco | Visit site |
| Star Solar, Inc | Los Angeles | Visit site |
| StarCharge | Fremont | Visit site |
| Staten Solar | San Jose | Visit site |
| Station A | San Francisco | Visit site |
| Steel Structures, Inc. | Madera | Visit site |
| Stellar Solar | Oceanside | Visit site |
| Stellar Solar, Inc | Fresno | Visit site |
| STORED POWER TECHNOLOGY INC | Riverside | Visit site |
| Sullivan Power Inc. | San Diego | Visit site |
| Summit Energy | Davis | Visit site |
| Sun Gold Power Inc. | Irvine | Visit site |
| Sun Gold Power Inc. | Mission Viejo | Visit site |
| Sun Light & Power | Berkeley | Visit site |
| Sunbelt Solomon | Bakersfield | Visit site |
| Sunceco | Fremont | Visit site |
| SunCity Solar | Los Angeles | Visit site |
| SunEarth | Fontana | Visit site |
| Sunflare Solar | La Verne | Visit site |
| Sunfolding | San Francisco | · |
| Sungreat Energy | Fremont | Visit site |
| SunGreen Systems, Inc. | Pasadena | Visit site |
| Sungrow North America | Costa Mesa | Visit site |
| Sunistics Group | Woodland Hills | Visit site |
| Sunlife Solar | Irvine | Visit site |
| Sunlight Solar, Inc. | El Cajon | Visit site |
| Sunlogix: AC - Heating - Solar | Palm Desert | Visit site |
| SunMade Smart Roofing, Solar & Electric | Fresno | Visit site |
| Sunnybotics | El Cerrito | Visit site |
| Sunpin Solar | Irvine | Visit site |
| SUNRGY Solar Distribution | La Verne | Visit site |
| SUNRGY Solar Distribution | Stockton | Visit site |
| Sunridge Legal, LLP | San Diego | Visit site |
| Sunstall Inc. | Novato | Visit site |
| Sunverge Energy | San Francisco | · |
| Sunvert Solar | San Bernardino | Visit site |
| Sunworks, Inc. (EnergyAid) | Santa Ana | · |
| Sustainable Capital Finance | Campbell | Visit site |
| Sustainable Energy Group - SEG | Grass Valley | Visit site |
| Suzhou Niuera Energy Co.,Ltd | Santa Fe springs | Visit site |
| Suzhou Niuera Energy Co.,Ltd | Santa Fe Springs | Visit site |
| Swell Energy | Santa Monica | Visit site |
| Swift Solar | San Carlos | Visit site |
| Symbio | Temecula | Visit site |
| TAE Technologies, Inc | Foothill Ranch | Visit site |
| TDK Ventures | San Jose | · |
| TENCO SOLAR | Anaheim | Visit site |
| TeraHive | Milpitas | Visit site |
| Terawatt | San Francisco | Visit site |
| TerraVerde Energy | San Francisco | Visit site |
| Tesco Automation | Anaheim | Visit site |
| The Hiller Companies | Lancaster | Visit site |
| The Hiller Companies | Long Beach | Visit site |
| The Hiller Companies | Los Angeles | Visit site |
| The Hiller Companies | Pasadena | Visit site |
| The Hiller Companies | San Diego | Visit site |
| The Hiller Companies | Van Nuys | Visit site |
| The Hiller Companies | West Coast | Visit site |