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

Facility	City	State	Employees	Status
Advanced Seismic Instrumentation and Research LLC	Carbondale	CO	—	● ACTIVE
Advanced Solutions & Controls LLC	Miamisburg	OH	—	● ACTIVE
Advanced Telemetrics International	Spring Valley	OH	—	● ACTIVE
Advent Design Corporation	Bristol	PA	—	● ACTIVE
Aego Systems INC.	Boise	ID	—	● ACTIVE
Aerobotix INC	Madison	AL	—	● ACTIVE
Aeroprobe Corporation	Christiansburg	VA	—	● ACTIVE
Aerostar International, LLC	Sioux Falls	SD	—	● ACTIVE
Agility Robotics, INC.	Salem	OR	—	● ACTIVE
Airborne Outfitters LLC	Findlay	OH	—	● ACTIVE
Airco Republic Electronics, INC.	Lodi	NJ	—	● ACTIVE
AIAircraft Instruments CO	Doylestown	PA	—	● ACTIVE
Airport Monitoring Systems LLC	Great Falls	VA	—	● ACTIVE
Airrow, INC.	Los Angeles	CA	—	● ACTIVE
Airspace Defense, INC.	Sacramento	CA	—	● ACTIVE
Airtrek Robotics, INC	Covington	KY	—	● ACTIVE
Akon Incorporated	San Jose	CA	—	● ACTIVE
Akyor LLC	San Marcos	TX	—	● ACTIVE
All Axis Precision LLC	Huntington Beach	CA	—	● ACTIVE
Allen Control Systems, INC.	Austin	TX	—	● ACTIVE
Allen Filters, Incorporated	Springfield	MO	—	● ACTIVE
Allocortech INC.	Waynesboro	VA	—	● ACTIVE
AIAlt-bionics, INC.	San Antonio	TX	—	● ACTIVE
Alti-2 Technologies, INC.	Deland	FL	—	● ACTIVE
American Ecotech L.c.	Warren	RI	—	● 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.