Manufacturing of specialty transformers, including indoor and outdoor instrument transformers, open core and coil transformer units, arc welder transformers, and high-intensity discharge lamp transformers (excluding fluorescent lamp ballasts)

Facility	City	State	Employees	Status
Olympic Controls CORP	Bartlett	IL	—	◐ LIKELY ACTIVE
PPPower Partners INC	Athens	GA	500+	◐ LIKELY ACTIVE
RMRoman Manufacturing INC	Grand Rapids	MI	100–499	◐ LIKELY ACTIVE
Ar Transformers INC	Las Vegas	NV	—	◐ LIKELY ACTIVE
Coil-tran LLC	Hobart	IN	—	◐ LIKELY ACTIVE
DSDoubletree Systems, INC.	San Jose	CA	—	◐ LIKELY ACTIVE
Dozer Electrical LLC	Las Vegas	NV	—	◐ LIKELY ACTIVE
Lema Defense LLC	Saint Paul	MN	—	◐ LIKELY ACTIVE
Meta Power Solutions, LLC	Palm Beach Gardens	FL	—	◐ LIKELY ACTIVE
Native American Transformer Services INC	Reno	NV	—	◐ LIKELY ACTIVE
NMNorlake Manufacturing CO	Elyria	OH	—	◐ LIKELY ACTIVE
PFPacific Fusion Corporation	Fremont	CA	—	◐ LIKELY ACTIVE
SISaachi INC.	Roselle	IL	—	◐ LIKELY ACTIVE
Schneider Electric Usa, INC.	Boston	MA	—	◐ LIKELY ACTIVE
Utility Systems Technologies, INC.	Watervliet	NY	—	◐ LIKELY ACTIVE
VLVaopto LLC	Las Vegas	NV	—	◐ LIKELY ACTIVE
Yellowstone Electric CO	Billings	MT	—	◐ LIKELY ACTIVE
ATAfp Transformers Incorporated	Edison	NJ	20–99	◐ LIKELY ACTIVE
AWAvant Wellness Systems INC	Thousand Oaks	CA	—	◐ LIKELY ACTIVE
Basler Electric Company - Taylor	Taylor	TX	20–99	◐ LIKELY ACTIVE
BSBcs Switchgear INC	Aubrey	TX	—	◐ LIKELY ACTIVE
CTCheck Technology Solutions LLC	Troy	MI	20–99	◐ LIKELY ACTIVE
CCCurrent Controls INC	Wellsville	NY	20–99	◐ LIKELY ACTIVE
DSDelta Star Field Service	Forest	VA	20–99	◐ LIKELY ACTIVE
DNDrs Naval Power Systems INC	Menomonee Falls	WI	—	◐ LIKELY ACTIVE
ECEaton Corporation	Chandler	AZ	—	◐ LIKELY ACTIVE
ECEaton Corporation	San Diego	CA	—	◐ LIKELY ACTIVE
GAGe Aviation Systems LLC	Grand Rapids	MI	—	◐ LIKELY ACTIVE
GEGeneral Electric Company	Seaman	OH	—	◐ LIKELY ACTIVE
HTHunterdon Transformer CO	Alpha	NJ	—	◐ LIKELY ACTIVE
HHHyosung Hico, LTD. Company	Memphis	TN	100–499	◐ LIKELY ACTIVE
LCLovejoy Controls Corporation	Waukesha	WI	—	◐ LIKELY ACTIVE
MUMenk USA	Sterling	IL	20–99	◐ LIKELY ACTIVE
MCMicrosemi Corp.-power Management Group	Garden Grove	CA	—	◐ LIKELY ACTIVE
NTNiagara Transformer CORP	Buffalo	NY	20–99	◐ LIKELY ACTIVE
PTPennsylvania Transformer Technologies, LLC - Canonsburg, PA	Canonsburg	PA	100–499	◐ LIKELY ACTIVE
PTPennsylvania Transformer Technologies, LLC - Raeford, NC	Raeford	NC	20–99	◐ LIKELY ACTIVE
PCPioneer Custom Electrical Products CORP.	Santa Fe Springs	CA	—	◐ LIKELY ACTIVE
PTPioneer Transformer CO	Pioneer	OH	20–99	◐ LIKELY ACTIVE
PSPowergrid Solutions LLC	Oshkosh	WI	100–499	◐ LIKELY ACTIVE
PIPowervar INC	Waukegan	IL	—	◐ LIKELY ACTIVE
Rockwell Automation Middleton	Middleton	WI	20–99	◐ LIKELY ACTIVE
RRRolls Royce Solutions America Inc. Industrial Rd Mankato, MN	Mankato	MN	20–99	◐ LIKELY ACTIVE
SESchneider Electric	Smyrna	TN	100–499	◐ LIKELY ACTIVE
SISimplex INC	Springfield	IL	—	◐ LIKELY ACTIVE
SPSora Power INC.	Corona	CA	—	◐ LIKELY ACTIVE
SSSunbelt Solomon - COGJ	Grand Junction	CO	20–99	◐ LIKELY ACTIVE
SSSunbelt Solomon Services - TNDE	Decatur	TN	100–499	◐ LIKELY ACTIVE
SESystems Engineering & Sales CO	Fort Wayne	IN	20–99	◐ LIKELY ACTIVE
VFV & F Transformer	Celina	TN	20–99	◐ LIKELY 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 specialty transformers, including indoor and outdoor instrument transformers, open core and coil transformer units, arc welder transformers, and high-intensity discharge lamp transformers (excluding fluorescent lamp ballasts), 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.