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Electrical equipment manufacturers in Washington

Washington has 22 electrical equipment makers in EPA records, facilities that list codes for motors, transformers, switchgear, wire and wiring devices. The most are in Seattle, Liberty Lake and Spokane Valley. That is under 1% of the 2,373 such facilities nationwide, and Washington ranks #28 of 50 states.

Product
Electrical equipment manufacturers
Facilities
22
State rank
#28
NAICS
335311 and 8 related codes
Revised
November 1, 2026

Facilities in Washington

These are active facilities in EPA's ECHO database that list a code for motors, transformers, switchgear, wire and wiring devices.

FacilityCityWhat EPA lists
Aviation Technical Svcs Inc Components DEverettAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Maddox Industrial TransformerBattle GroundPower, Distribution, and Specialty Transformer Manufacturing
Rocky Mountain Bank Note Co SpokaneLiberty LakeMotor and Generator Manufacturing
Alaska Diesel Electric IncSeattleMotor and Generator Manufacturing
Alpha Technologies Services, Inc.BellinghamAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Applied Precision IncMercer IslandAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Centennial BuildingSpokane ValleyPower, Distribution, and Specialty Transformer Manufacturing
Coal Creek Power PlantChehalisAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Concurrent Technologies CorpBremertonAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Frencken America IncLiberty LakeMotor and Generator Manufacturing
G B Enterprises ArlingtonArlingtonPower, Distribution, and Specialty Transformer Manufacturing
Hewes Marine CoColvilleRelay and Industrial Control Manufacturing
Schweitzer Engineering LaboratoriesPullmanRelay and Industrial Control Manufacturing
Schweitzer Engineering LabsPullmanRelay and Industrial Control Manufacturing
Servatron Inc Spokane ValleySpokane ValleyAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Silfab Solar WaBurlingtonAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Silicon MechanicsBothellAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Sinandode North AmericaMoses LakeAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Skyline Electric And Mfg Co IncSeattleAll Other Miscellaneous Electrical Equipment and Component Manufacturing
Skyline Electric Mfg Co IncSeattleSwitchgear and Switchboard Apparatus Manufacturing
Square D Co SeattleSeattleSwitchgear and Switchboard Apparatus Manufacturing
Sterling InternationalSpokaneAll Other Miscellaneous Electrical Equipment and Component 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

  • Seattle: 4
  • Liberty Lake: 2
  • Spokane Valley: 2
  • Pullman: 2
  • Everett: 1
  • Battle Ground: 1

By product code

  • All Other Miscellaneous Electrical Equipment and Component Manufacturing (NAICS 335999): 11
  • Power, Distribution, and Specialty Transformer Manufacturing (NAICS 335311): 3
  • Motor and Generator Manufacturing (NAICS 335312): 3
  • Relay and Industrial Control Manufacturing (NAICS 335314): 3
  • Switchgear and Switchboard Apparatus Manufacturing (NAICS 335313): 2

All electrical equipment and appliances manufacturing in Washington: 31 facilities and Census job counts.