Bywatts

Solar Companies in California

Bywatts lists 496 solar companies in California.

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View California on the map

Top cities: San Francisco (83) · San Diego (59) · San Jose (49) · Los Angeles (42) · Sacramento (37) · Irvine (36)

Companies by category
California solar companies by categoryGeneration Systems354Design & Engineering313Manufacturers300Installers & Field Serv…Installers & Field Services269Operations & Maintenance207Energy Storage System P…Energy Storage System Providers196Energy Consultants196EPC Firms (Engineering,…EPC Firms (Engineering, Procurement, Construction)189

How much hail and wind California solar sees

If your company owns or insures solar in California, wildfire is the weather peril most likely to damage the panels, and Trinity County carries the highest exposure of the 58 rated counties.

See how much hail your panels can take across California counties

Source: FEMA National Risk Index, modeled by Bywatts. Full county ranking and methodology at the link.

All 496 companies in California

CompanyCityWebsite
CPS AmericaPleasantonVisit site
FranklinWH Energy Storage Inc.San JoseVisit site
BLUETTIChinoVisit site
Briggs & Stratton Energy SolutionsOxnardVisit site
Cleantech Law PartnersSan FranciscoVisit site
Hounen Solar America Inc.·Visit site
Roof Tech, Inc.San DiegoVisit site
SMA AmericaRocklinVisit site
SnapNrack Solar Mounting SolutionsSan Luis ObispoVisit site
ABC Supply Co. Inc.San Juan CapistranoVisit site
Advanced Test Equipment RentalsSan DiegoVisit site
AFC SolarSan MarcosVisit site
Baja Construction Co., Inc.MartinezVisit site
Built RoboticsSan FranciscoVisit site
EndurEnergy Systems, Inc.HaywardVisit site
Greentech RenewablesSan DiegoVisit site
Inlyte EnergyBay AreaVisit site
Knick InterfaceHuntington BeachVisit site
NeoVoltaPowayVisit site
New Sun RoadRichmondVisit site
PegasusRichmondVisit site
PVFarmNewport BeachVisit site
PytesOntarioVisit site
PZSE Structural Engineers, Inc.RosevilleVisit site
Solar InsureCosta MesaVisit site
T-Global USA LLCSan JoseVisit site
Cupertino Electric, Inc.NovatoVisit site
4 S.T.E.L. Engineering, IncAnaheimVisit site
American Honda Motor Company, Inc.TorranceVisit site
Anza RenewablesOaklandVisit site
ASIANS IN ENERGYSacramentoVisit site
Aurora SolarSan FranciscoVisit site
BlackTeal EnergySacramentoVisit site
Blymyer EngineersAlamedaVisit site
BoxPowerGrass ValleyVisit site
BSRIA Inc.Campo SecoVisit site
ContractPowerEncinitasVisit site
CoperniqSan FranciscoVisit site
CSI Electrical Contractors, Inc.PalmdaleVisit site
Current Renewables Engineering Inc.RiversideVisit site
DEHUIChinoVisit site
Dyn365Pros·Visit site
Energy Loan NetworkSimi ValleyVisit site
Enphase EnergyFremontVisit site
EnteligentMorgan HillVisit site
EPC Power CorpPowayVisit site
EVO Power USA, INCRancho Santa MargaritaVisit site
FigureSan FranciscoVisit site
Fortune ElectricTorranceVisit site
Fortune EnergySimi ValleyVisit site
Gotion Inc.FremontVisit site
Greenberg Traurig, LLP·Visit site
GroundWork RenewablesNorth HollywoodVisit site
HD Hyundai Energy Solutions AmericaIrvineVisit site
Hongfa America, Inc.Lake ForestVisit site
Huaxing cable USA LLCIrvineVisit site
IronRidgeHaywardVisit site
JackeryFremontVisit site
K2 Systems USOceansideVisit site
KB RackingPasadenaVisit site
Kern Solar StructuresBakersfieldVisit site
Langan Engineering & Environmental Services·Visit site
Lucid SolarCity of IndustryVisit site
M Bar C ConstructionSan MarcosVisit site
MGM TransformersCommerceVisit site
MK BatteryAnaheimVisit site
MoxaBreaVisit site
New Era Electric LLCSan MarcosVisit site
Next Wave Energy MonitoringCarlsbadVisit site
Nextracker Inc.FremontVisit site
Nuvation EnergySunnyvaleVisit site
OlssonIrvineVisit site
OnSight TechnologyThermalVisit site
Operant NetworksRohnert ParkVisit site
PBS Engineers, Inc.Costa MesaVisit site
Polar Power Inc·Visit site
Pure Power EngineeringSacramentoVisit site
Qcells North AmericaIrvineVisit site
QuickBOLTLivermoreVisit site
RESA PowerBakersfieldVisit site
Ritalia FundingVenturaVisit site
RosendinAnaheimVisit site
Solarever USALake ForestVisit site
SollegaSan BrunoVisit site
SPANHalf Moon BayVisit site
STÄUBLIWindsorVisit site
Terabase EnergyBerkeleyVisit site
The Solar Recycling CompanyDesert Hot SpringsVisit site
Thornova SolarFremontVisit site
Tigo EnergyCampbellVisit site
Trimark Associates, Inc.FolsomVisit site
TW Power Line Construction, LLCRosevilleVisit site
UNIGRID BatterySan DiegoVisit site
World4SolarCulver CityVisit site
Xpanner.Santa Fe SpringsVisit site
Yes EnergyGlendoraVisit site
120 DEGREEZ MEP EngineeringSan DiegoVisit site
127 EnergyNapaVisit site
3Degrees Group, Inc.San FranciscoVisit site
A.M. Sun Solar & RoofingPaso RoblesVisit site
Access LimitedOceanoVisit site
Accessible Consulting Engineers, Inc.CoronaVisit site
ACCO Engineered SystemsPasadenaVisit site
ACR Solar & Home ServicesCarmichaelVisit site
ActivateBerkeleyVisit site
Active MembranesMoorparkVisit site
Advanced Solar CleaningTruckeeVisit site
Advanced Solar SolutionsBass LakeVisit site
Advantek Waste Management Services LLCLos AngelesVisit site
Advent Technologies Holdings, Inc.LivermoreVisit site
AESC, Inc.CarlsbadVisit site
AirMyneSouth Lake TahoeVisit site
AlbatSacramentoVisit site
AlfaTechSan JoseVisit site
AllesunSanta ClaraVisit site
Alliant Consulting, Inc.San DiegoVisit site
Allied UniversalIrvineVisit site
Allterra SolarSanta CruzVisit site
Alvah Group, Inc.QuincyVisit site
American Lithium Energy (ALE)CarlsbadVisit site
American Wiring, IncSan DiegoVisit site
AMETEK IntelliPower, Inc.OrangeVisit site
Antora EnergySan JoseVisit site
ANYboticsSan FranciscoVisit site
Applied CeramicsFremontVisit site
APsmart MLRSDCupertinoVisit site
ARB ElectricalSan ClementeVisit site
ArctechSacramentoVisit site
ArcTern VenturesSan FranciscoVisit site
Aro HomesSacramentoVisit site
AvantusSan DiegoVisit site
Barnum & Celillo Electric, Inc.SacramentoVisit site
Baseload Power USPalo AltoVisit site
Bay Cities Paving & Grading, Inc.ConcordVisit site
Bear Electrical Solutions LLCSan JoseVisit site
Birds Eye Aerial Drones, LLCEl CajonVisit site
Bishangari Climate Intelligence LLCSan JoseVisit site
BlueSky Utility - Powered by Nofar EnergyNovatoVisit site
Boost VCSan MateoVisit site
BORGAFowlerVisit site
Bosley Electric CompanySanta AnaVisit site
BPIOceansideVisit site
Bragg CompaniesLong BeachVisit site
Butcher Power ProductsSacramentoVisit site
Butterfield Electric Inc.WoodlandVisit site
BVI SolarSan DiegoVisit site
C2 Group - San DiegoSacramentoVisit site
CadeoHalf Moon BayVisit site
California Building OfficialsSacramentoVisit site
California Department of Forestry and Fire Protection (CAL FIRE)SacramentoVisit site

California at a glance

California has 874 operating power plants (72.0 GW, led by Natural Gas), 3,000 named substations, 54 data centers, 1,955 solar installers and 496 solar companies on Bywatts; retail electricity sales were 238.0 TWh in 2025 (EIA), down 8.9% over ten years.