Manufacturing of electrical indicating, recording, and other instruments to measure electricity, including indicator panels and portable electricity measuring instruments

Facility	City	State	Employees	Status
Advantest America, INC	San Jose	CA	100–499	● ACTIVE
Aehr Test Systems	Fremont	CA	100–499	● ACTIVE
Ball Systems, INC.	Westfield	IN	20–99	● ACTIVE
Calex Mfg. Co., INC.	Concord	CA	—	● ACTIVE
Checkpoint Technologies LLC	San Jose	CA	20–99	● ACTIVE
Ck Technologies, INC.	Camarillo	CA	—	● ACTIVE
Corestar International Corporation	Irwin	PA	20–99	● ACTIVE
Dit-mco International LLC	Kansas City	MO	100–499	● ACTIVE
Doble Engineering Company	Marlborough	MA	100–499	● ACTIVE
Euv Tech INC	Martinez	CA	100–499	● ACTIVE
Huntron INC	Mill Creek	WA	—	● ACTIVE
LTLoad Technology INC	Mesquite	NV	—	● ACTIVE
Marki Microwave LLC	Morgan Hill	CA	100–499	● ACTIVE
Micronix USA LLC	Fountain Valley	CA	20–99	● ACTIVE
Nova Measuring Instruments INC.	Fremont	CA	100–499	● ACTIVE
Pacific Instruments, INC.	Concord	CA	20–99	● ACTIVE
Polarity INC.	Rancho Cordova	CA	20–99	● ACTIVE
Precision Filters, INC.	Ithaca	NY	20–99	● ACTIVE
Prime Technology LLC	North Branford	CT	20–99	● ACTIVE
QTQa Technology Company, INC.	Hampton	NH	20–99	● ACTIVE
Tempo Communications, INC.	Vista	CA	100–499	● ACTIVE
Trackonomy Systems INC	San Jose	CA	100–499	● ACTIVE
Trellisware Technologies INC	San Diego	CA	100–499	● ACTIVE
Virginia Panel Corporation	Waynesboro	VA	100–499	● ACTIVE
Yokogawa Corporation of America	Newnan	GA	100–499	● ACTIVE

FactoryRegistry lists 819 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 electrical indicating, recording, and other instruments to measure electricity, including indicator panels and portable electricity measuring instruments, 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.