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.
| Facility | City | What EPA lists |
|---|---|---|
| Ei Colton, LLC | Colton | Power, Distribution, and Specialty Transformer Manufacturing |
| Carson Cogeneration Company | Carson | Motor and Generator Manufacturing |
| Western Tube & Conduit Corp | Long Beach | Noncurrent-Carrying Wiring Device Manufacturing |
| Escondido City Of | Escondido | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Electric Drives Inc | Dos Palos | Motor and Generator Manufacturing |
| Delta Star | San Carlos | Power, Distribution, and Specialty Transformer Manufacturing |
| Hermetic Seal Corp | Rosemead | Current-Carrying Wiring Device Manufacturing |
| Magma Products LLC | Lakewood | Switchgear and Switchboard Apparatus Manufacturing |
| Precision Stampings Solutions, Inc. | Beaumont | Current-Carrying Wiring Device Manufacturing |
| Square D Company | Beaumont | Current-Carrying Wiring Device Manufacturing |
| Arrow Machine Industries Inc | El Cajon | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Capstone Turbine Corp | Van Nuys | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Coherent Inc Santa Clara | Santa Clara | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Ctc Global | Irvine | Current-Carrying Wiring Device Manufacturing |
| Formalloy Technologies Inc | Spring Valley | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Jl Haley Enterprises Inc | Rancho Cordova | Power, Distribution, and Specialty Transformer Manufacturing |
| Ohmega Technologies Inc | Culver City | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Paramount Roll And Forming | Santa Fe Springs | Motor and Generator Manufacturing |
| Parker Hannifin Corporation | Carson | Other Communication and Energy Wire Manufacturing |
| Phaostron Instruments And Electronics | Azusa | Switchgear and Switchboard Apparatus Manufacturing |
| Pico Metal Producs Inc. | Santa Fe Springs | Switchgear and Switchboard Apparatus Manufacturing |
| Quantumscape | San Jose | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Scott Engineering Inc | Chino | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Technical Devices Company | Torrance | Power, Distribution, and Specialty Transformer Manufacturing |
| Teledyne Defense Electronics, LLC | Hawthorne | Relay and Industrial Control Manufacturing |
| Vishay Spectrol | Ontario | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| 1010 Wilshire | Los Angeles | Power, Distribution, and Specialty Transformer Manufacturing |
| 5911 Truck Repair Inc | Bakersfield | Motor and Generator Manufacturing |
| A -Z Fontana Alternator, Starter & Repair | Fontana | Motor and Generator Manufacturing |
| A & J Welding Inc. | Pomona | Power, Distribution, and Specialty Transformer Manufacturing |
| A J Electronics Inc | Chatsworth | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| A. O. Smith Corporation | Newark | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Aaa Electric Motor Sales & Service, Inc. | Los Angeles | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Aaa Furnace & Ac Co | San Jose | Motor and Generator Manufacturing |
| Aaaa Generator Services | Hayward | Motor and Generator Manufacturing |
| Aaaa Generator Services Inc | Castro Valley | Motor and Generator Manufacturing |
| Abbott Technologies Inc | Sun Valley | All Other Miscellaneous Electrical Equipment and Component Manufacturing |
| Ace Compressors & Hybrid LLC | Garden Grove | Power, Distribution, and Specialty Transformer Manufacturing |
| Acpc Inc | San Leandro | Current-Carrying Wiring Device Manufacturing |
| Ada Signal Processors Inc | Oakland | Power, 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.