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

Facility	City	State	Employees	Status
Sensitech INC	Beverly	MA	100–499	● ACTIVE
Sentry Equipment CORP.	Oconomowoc	WI	100–499	● ACTIVE
Silicon Designs, INC.	Kirkland	WA	—	● ACTIVE
Smiths Interconnect INC	Tampa	FL	100–499	● ACTIVE
Smooth on INC	Macungie	PA	100–499	● ACTIVE
Solventum Purification INC.	Meriden	CT	100–499	● ACTIVE
Sonatech, LLC	Santa Barbara	CA	100–499	● ACTIVE
Sor, INC.	Lenexa	KS	100–499	● ACTIVE
Spellman High-voltage Electronics Corporation	Hauppauge	NY	100–499	● ACTIVE
Ss White Burs LLC	Lakewood	NJ	—	● ACTIVE
Superalloy Manufacturing Solutions Corporation	Cincinnati	OH	20–99	● ACTIVE
Syqwest LLC	Cranston	RI	20–99	● ACTIVE
Technology for Energy CORP	Knoxville	TN	20–99	● ACTIVE
Teledyne Controls, LLC	El Segundo	CA	100–499	● ACTIVE
Teledyne Instruments INC	City of Industry	CA	20–99	● ACTIVE
Teledyne Instruments, INC.	Hampton	VA	20–99	● ACTIVE
Teledyne Instruments, INC.	Poway	CA	100–499	● ACTIVE
The Entwistle Company LLC	Hudson	MA	100–499	● ACTIVE
The Estabrook Corporation	Berea	OH	20–99	● ACTIVE
Thermo Environmental Instruments LLC	Franklin	MA	100–499	● ACTIVE
Thomas Electronics, INC	Clyde	NY	100–499	● ACTIVE
Time Manufacturing CO	Waco	TX	100–499	● ACTIVE
Transducer Techniques, LLC	Temecula	CA	20–99	● ACTIVE
TCTreadwell Corporation (delaware)	Thomaston	CT	20–99	● ACTIVE
Tric Tool LTD	Holland	MI	20–99	● 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.