Manufacturing of parts (including renewal and repair parts), subassemblies, and accessories for all transformers

Facility	City	State	Employees	Status
Trystar, LLC.	Faribault	MN	—	● ACTIVE
U.s. Co-tronics, INC.	Fairbury	IL	—	● ACTIVE
Vishay Hirel Systems LLC	Duluth	MN	—	● ACTIVE
APAak Power Supply CORP	Plaistow	NH	—	● ACTIVE
Action Battery Wholesalers, INC.	Somerset	WI	—	● ACTIVE
Acupwr INC	Diamond Bar	CA	—	● ACTIVE
Adaptive Frequency INC	Compton	CA	—	● ACTIVE
Adaptive Power Systems INC	Irvine	CA	—	● ACTIVE
Aj's Power Source, INC.	Land O Lakes	FL	—	● ACTIVE
Alder Sol Holdings LLC	Henderson	NC	—	● ACTIVE
Ametek, INC.	Harleysville	PA	—	● ACTIVE
Applied Energy LLC	Saginaw	MI	—	● ACTIVE
AEArion Energy LLC	Houston	TX	—	● ACTIVE
BPBenning Power Electronics INC	Richardson	TX	20–99	● ACTIVE
Beta Sentient LLC	Austin	TX	—	● ACTIVE
Bicker Electronics CORP	Waterford	MI	—	● ACTIVE
Blue Star Electrical LLC	Lansdale	PA	—	● ACTIVE
Bright Manufacturing LLC	Fort Lauderdale	FL	—	● ACTIVE
Controlled Power, Incorporated	Bothell	WA	—	● ACTIVE
CSControlled Systems Sales Company	Richardson	TX	—	● ACTIVE
Cordyne INC	Houston	TX	—	● ACTIVE
Custom Magnetics of California INC	Chino	CA	—	● ACTIVE
DEDarrah Electric Company	Chesterland	OH	—	● ACTIVE
Denver Magnetic INC	Denver	CO	—	● ACTIVE
Digital Power Corporation	San Jose	CA	—	● ACTIVE

FactoryRegistry lists 605 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced parts (including renewal and repair parts), subassemblies, and accessories for all transformers, in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.