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

Facility	City	State	Employees	Status
Aalborg Instruments & Controls INC	Orangeburg	NY	—	● ACTIVE
AIAbb INC	Bartlesville	OK	100–499	● ACTIVE
Abbott Underwater Acoustics LLC	Haslett	MI	—	● ACTIVE
ASAbj Squared Consulting LLC	Waldorf	MD	—	● ACTIVE
AIAbq Industrial, LP	Tomball	TX	—	● ACTIVE
Absolute Accuracy INC.	Los Angeles	CA	—	● ACTIVE
Absolute Process Instruments INC	Libertyville	IL	—	● ACTIVE
ASAcademy Simulation LLC	Tampa	FL	—	● ACTIVE
Accelerated Systems LLC	Salem	NH	—	● ACTIVE
Acces I O Products, INC	San Diego	CA	—	● ACTIVE
Accipiter Radar Corporation	Orchard Park	NY	—	● ACTIVE
Accord Technology LLC	Phoenix	AZ	—	● ACTIVE
Accumetrics, INC.	Latham	NY	—	● ACTIVE
Accurate Marine Electronics INC	Port Saint Lucie	FL	—	● ACTIVE
Accurate Technology INC	Fletcher	NC	—	● ACTIVE
APAco Pacific INC	Belmont	CA	—	● ACTIVE
A.c.t. Audio, LLC	Vernon Rockville	CT	—	● ACTIVE
Additel Corporation	Brea	CA	—	● ACTIVE
Adgo INC	Cincinnati	OH	—	● ACTIVE
Admiral Filter Company LLC	Rockaway	NJ	—	● ACTIVE
ATAds-b Technologies, LLC	Anchorage	AK	—	● ACTIVE
Advanced Conservation Technology Distribution, INC.	Costa Mesa	CA	—	● ACTIVE
Advanced Navigation CORP.	Huntsville	AL	—	● ACTIVE
Advanced Navigation & Positioning Corporation	Hood River	OR	—	● ACTIVE
Advanced Processing Technology INC	Norman	OK	—	● 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.