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

Facility	City	State	Employees	Status
Honeywell International INC.	Boyne City	MI	100–499	● ACTIVE
Horiba Instruments Incorporated	Irvine	CA	20–99	● ACTIVE
Imsar LLC	Springville	UT	—	● ACTIVE
Industrial Scientific Corporation	Pittsburgh	PA	100–499	● ACTIVE
Inficon INC	East Syracuse	NY	100–499	● ACTIVE
Integrated Cryogenic Solutions, LLC	Escondido	CA	20–99	● ACTIVE
Interface INC.	Scottsdale	AZ	100–499	● ACTIVE
Iwaki America Incorporated	Holliston	MA	100–499	● ACTIVE
Kastalon INC	Alsip	IL	20–99	● ACTIVE
Kewaunee Scientific Corporation	Statesville	NC	—	● ACTIVE
Korry Electronics CO	Everett	WA	100–499	● ACTIVE
L3harris Technologies, INC.	Clifton	NJ	—	● ACTIVE
Laur Silicone INC	Beaverton	MI	—	● ACTIVE
Leda Corporation	Huntington Beach	CA	—	● ACTIVE
Lincoln Machine, INC	Lincoln	NE	20–99	● ACTIVE
Lockheed Martin CORP	Archbald	PA	—	● ACTIVE
Lockheed Martin Corporation	Ocala	FL	—	● ACTIVE
Lockheed Martin Corporation	Owego	NY	—	● ACTIVE
Lockheed Martin Millimeter Technologies, INC.	Orlando	FL	—	● ACTIVE
Massa Products Corporation	Hingham	MA	20–99	● ACTIVE
Max Machinery, INC	Healdsburg	CA	20–99	● ACTIVE
Mechanical Rubber Products Company, INC.	Warwick	NY	20–99	● ACTIVE
Meeco, INC.	Warrington	PA	20–99	● ACTIVE
Michael Engineering, LTD	Mount Pleasant	MI	20–99	● ACTIVE
Micro Motion, INC.	Boulder	CO	—	● 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.