Manufacturing of parts and components for electricity and…

Facility	City	State	Employees	Status
Prostat CORP	Glendale Heights	IL	—	◐ LIKELY ACTIVE
Sifos Technologies INC	Andover	MA	—	◐ LIKELY ACTIVE
Siglent Technologies NA INC	Solon	OH	—	◐ LIKELY ACTIVE
Spray Contec Incorporated	Centreville	VA	—	◐ LIKELY ACTIVE
Tabc Group, LLC	Seekonk	MA	—	◐ LIKELY ACTIVE
Tabor Electronics LLC	San Francisco	CA	—	◐ LIKELY ACTIVE
Test, LLC	Orlando	FL	—	◐ LIKELY ACTIVE
Valid8.com, INC.	Wakefield	MA	—	◐ LIKELY ACTIVE
VLVerivolt LLC	San Francisco	CA	—	◐ LIKELY ACTIVE
WIWavecontrol INC	Roseland	NJ	—	◐ LIKELY ACTIVE
WIWeetech INC	Gurnee	IL	—	◐ LIKELY ACTIVE
Wenzel Associates, INC.	Austin	TX	—	◐ LIKELY ACTIVE
1H110 Hidden Lake	Duncan	SC	100–499	◐ LIKELY ACTIVE
ATAdvantest Test Solutions INC	Lake Forest	CA	100–499	◐ LIKELY ACTIVE
AIAlphalab, INC.	Salt Lake City	UT	—	◐ LIKELY ACTIVE
ACAnritsu Company	Morgan Hill	CA	—	◐ LIKELY ACTIVE
BTBird Technologies Group & BEC	Solon	OH	100–499	◐ LIKELY ACTIVE
BIBitronics INC	Bethlehem	PA	20–99	◐ LIKELY ACTIVE
DPData Physics Corporation	Riverside	CA	—	◐ LIKELY ACTIVE
DCDigital Check CORP	Northbrook	IL	—	◐ LIKELY ACTIVE
Doble Engineering Company (Houston, TX)	Houston	TX	1–19	◐ LIKELY ACTIVE
Doble Engineering Company (Ontario, CA)	Ontario	CA	20–99	◐ LIKELY ACTIVE
EEpirus	Torrance	CA	100–499	◐ LIKELY ACTIVE
GEGeneral Electric Aircraft Engines	Lynn	MA	—	◐ LIKELY ACTIVE
HCHeterene Chem CO	Paterson	NJ	—	◐ LIKELY ACTIVE

FactoryRegistry lists 825 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 and components for electricity and electrical signal test equipment, 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.

The U.S. Census Bureau recorded this product line in 1 US manufacturing industry in the 2022 Economic Census, as the most specific line that industry reported, where 40 establishments reported producing it.

These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.

NAPCS collection code 2045230006. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.