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

Facility	City	State	Employees	Status
SESchwien Engineering, INC.	Pomona	CA	—	● ACTIVE
SSScully Signal Company	Wilmington	MA	—	● ACTIVE
Sechan Electronics INC	Lititz	PA	100–499	● ACTIVE
Sensia LLC	Coraopolis	PA	20–99	● ACTIVE
Sensonetics, INC.	Fountain Valley	CA	—	● ACTIVE
Sierra Instruments, INC.	Monterey	CA	—	● ACTIVE
Sierra Nevada Company, LLC	Sparks	NV	—	● ACTIVE
SPSimmonds Precision Products INC	Vergennes	VT	500+	● ACTIVE
Smith-root INC	Vancouver	WA	20–99	● ACTIVE
Smith Systems INC	Brevard	NC	20–99	● ACTIVE
SMSolon Manufacturing CO	Chardon	OH	—	● ACTIVE
Space Electronics, LLC	Berlin	CT	—	● ACTIVE
Sparton Deleon Springs, LLC	De Leon Springs	FL	—	● ACTIVE
SMSpecialty Manufacturing Inc	Saginaw	MI	20–99	● ACTIVE
Specialty Silicone Products, INC	Ballston Spa	NY	—	● ACTIVE
Spec Tool Company	Santa Fe Springs	CA	—	● ACTIVE
Src Elastomerics, INC.	Philadelphia	PA	100–499	● ACTIVE
S R Instruments, INC.	Tonawanda	NY	—	● ACTIVE
Steele Industries INC	Bradenton	FL	—	● ACTIVE
Supreme Integrated Technology, INC.	New Orleans	LA	—	● ACTIVE
SOSurface Optics Corporation	San Diego	CA	20–99	● ACTIVE
Tavis CORP	Mariposa	CA	20–99	● ACTIVE
TGTbt Group INC	Bellmawr	NJ	—	● ACTIVE
Technovative Applications	Brea	CA	—	● ACTIVE
TDTeledyne Detcon, INC.	Cypress	TX	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.