US Factory Map

Electrical equipment manufacturers in California

California has 592 electrical equipment makers in EPA records, facilities that list codes for motors, transformers, switchgear, wire and wiring devices. The most are in San Diego, San Jose and Los Angeles. That is 25% of the 2,373 such facilities nationwide, and California ranks first of 50 states.

Product
Electrical equipment manufacturers
Facilities
592
State rank
#1
NAICS
335311 and 8 related codes
Revised
November 1, 2026

Facilities in California

These are active facilities in EPA's ECHO database that list a code for motors, transformers, switchgear, wire and wiring devices. The 40 shown first are the ones with the most EPA program records, which usually means the larger sites.

FacilityCityWhat EPA lists
Ei Colton, LLCColtonPower, Distribution, and Specialty Transformer Manufacturing
Carson Cogeneration CompanyCarsonMotor and Generator Manufacturing
Western Tube & Conduit CorpLong BeachNoncurrent-Carrying Wiring Device Manufacturing
Escondido City OfEscondidoAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Electric Drives IncDos PalosMotor and Generator Manufacturing
Delta StarSan CarlosPower, Distribution, and Specialty Transformer Manufacturing
Hermetic Seal CorpRosemeadCurrent-Carrying Wiring Device Manufacturing
Magma Products LLCLakewoodSwitchgear and Switchboard Apparatus Manufacturing
Precision Stampings Solutions, Inc.BeaumontCurrent-Carrying Wiring Device Manufacturing
Square D CompanyBeaumontCurrent-Carrying Wiring Device Manufacturing
Arrow Machine Industries IncEl CajonAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Capstone Turbine CorpVan NuysAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Coherent Inc Santa ClaraSanta ClaraAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Ctc GlobalIrvineCurrent-Carrying Wiring Device Manufacturing
Formalloy Technologies IncSpring ValleyAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Jl Haley Enterprises IncRancho CordovaPower, Distribution, and Specialty Transformer Manufacturing
Ohmega Technologies IncCulver CityAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Paramount Roll And FormingSanta Fe SpringsMotor and Generator Manufacturing
Parker Hannifin CorporationCarsonOther Communication and Energy Wire Manufacturing
Phaostron Instruments And ElectronicsAzusaSwitchgear and Switchboard Apparatus Manufacturing
Pico Metal Producs Inc.Santa Fe SpringsSwitchgear and Switchboard Apparatus Manufacturing
QuantumscapeSan JoseAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Scott Engineering IncChinoAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Technical Devices CompanyTorrancePower, Distribution, and Specialty Transformer Manufacturing
Teledyne Defense Electronics, LLCHawthorneRelay and Industrial Control Manufacturing
Vishay SpectrolOntarioAll Other Miscellaneous Electrical Equipment and Component Manufacturing
1010 WilshireLos AngelesPower, Distribution, and Specialty Transformer Manufacturing
5911 Truck Repair IncBakersfieldMotor and Generator Manufacturing
A -Z Fontana Alternator, Starter & RepairFontanaMotor and Generator Manufacturing
A & J Welding Inc.PomonaPower, Distribution, and Specialty Transformer Manufacturing
A J Electronics IncChatsworthAll Other Miscellaneous Electrical Equipment and Component Manufacturing
A. O. Smith CorporationNewarkAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Aaa Electric Motor Sales & Service, Inc.Los AngelesAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Aaa Furnace & Ac CoSan JoseMotor and Generator Manufacturing
Aaaa Generator ServicesHaywardMotor and Generator Manufacturing
Aaaa Generator Services IncCastro ValleyMotor and Generator Manufacturing
Abbott Technologies IncSun ValleyAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Ace Compressors & Hybrid LLCGarden GrovePower, Distribution, and Specialty Transformer Manufacturing
Acpc IncSan LeandroCurrent-Carrying Wiring Device Manufacturing
Ada Signal Processors IncOaklandPower, Distribution, and Specialty Transformer Manufacturing

Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.

Where they are

  • San Diego: 30
  • San Jose: 22
  • Los Angeles: 17
  • Fremont: 15
  • Anaheim: 14
  • Santa Clara: 12

By product code

  • All Other Miscellaneous Electrical Equipment and Component Manufacturing (NAICS 335999): 13 of those shown
  • Power, Distribution, and Specialty Transformer Manufacturing (NAICS 335311): 8 of those shown
  • Motor and Generator Manufacturing (NAICS 335312): 8 of those shown
  • Current-Carrying Wiring Device Manufacturing (NAICS 335931): 5 of those shown
  • Switchgear and Switchboard Apparatus Manufacturing (NAICS 335313): 3 of those shown
  • Relay and Industrial Control Manufacturing (NAICS 335314): 1 of those shown
  • Other Communication and Energy Wire Manufacturing (NAICS 335929): 1 of those shown
  • Noncurrent-Carrying Wiring Device Manufacturing (NAICS 335932): 1 of those shown

All electrical equipment and appliances manufacturing in California: 947 facilities and Census job counts.