Manufacturing of test equipment for testing electrical, radio, and communication circuits, and motors (excluding portable instrument transformers)

Facility	City	State	Employees	Status
AGAmerican Gyro Marine, INC.	Gig Harbor	WA	—	● ACTIVE
AIAmerican Institute for Research in Science and Technology LLC	Aliso Viejo	CA	—	● ACTIVE
American Nautical Services, INC.	Fort Lauderdale	FL	—	● ACTIVE
American Pharma Technologies INC	Boise	ID	—	● ACTIVE
American Weigh Wholesale, LLC	Cumming	GA	—	● ACTIVE
Ametek, INC.	Binghamton	NY	—	● ACTIVE
Ametek, INC.	Horsham	PA	—	● ACTIVE
Ametek Land INC	Pittsburgh	PA	—	● ACTIVE
Amico Technologies, INC.	Lakewood	NJ	—	● ACTIVE
A & M Innovators, INC.	Van Nuys	CA	—	● ACTIVE
Ampex Data Systems Corporation	Hayward	CA	—	● ACTIVE
Ampwave Defense LLC	Lancaster	PA	—	● ACTIVE
Amradtech, INC.	San Diego	CA	—	● ACTIVE
Anco Engineers, INC	Boulder	CO	—	● ACTIVE
Andrenam INC	Santa Clarita	CA	—	● ACTIVE
Anduril Industries, INC.	Washington	DC	—	● ACTIVE
Anschuetz USA INC.	Bethesda	MD	—	● ACTIVE
Anthropocene Institute LLC	Mill Valley	CA	—	● ACTIVE
A.p. Buck, INC.	Orlando	FL	—	● ACTIVE
Apex Embedded Systems LLC	Mc Farland	WI	—	● ACTIVE
Apex Equipment LLC	Victoria	MN	—	● ACTIVE
Apex Instruments, Incorporated	Fuquay Varina	NC	—	● ACTIVE
Apogee Labs INC	North Wales	PA	—	● ACTIVE
AIApothem, INC.	Monroe	NC	—	● ACTIVE
Appareo Systems, LLC	Fargo	ND	—	● ACTIVE

FactoryRegistry lists 3,820 facilities whose primary industry classification is one of the 4 industries above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced test equipment for testing electrical, radio, and communication circuits, and motors (excluding portable instrument 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.