Manufacturing of parts for industrial process control instruments (excluding parts for automatic residential and commercial environmental control systems and for major appliance controls)

Facility	City	State	Employees	Status
Temposonics, LLC	Cary	NC	100–499	● ACTIVE
Testequity LLC	Moorpark	CA	—	● ACTIVE
Texmate, INC.	Carlsbad	CA	—	● ACTIVE
Thermetrics, LLC	Seattle	WA	—	● ACTIVE
Thermometrics Corporation	Northridge	CA	—	● ACTIVE
Thermoworks INC.	American Fork	UT	—	● ACTIVE
TLThorlabs Lens Systems, INC.	Rochester	NY	20–99	● ACTIVE
Thwing-albert Instrument CO	West Berlin	NJ	20–99	● ACTIVE
Tmmi, LLC	Wheat Ridge	CO	1–19	● ACTIVE
Trilion Quality Systems LLC	King of Prussia	PA	—	● ACTIVE
TSTru Simulation + Training INC.	Lutz	FL	—	● ACTIVE
Tsi Incorporated	Shoreview	MN	—	● ACTIVE
Tucker-davis Technologies, INC.	Alachua	FL	20–99	● ACTIVE
Turner Designs, INC.	San Jose	CA	—	● ACTIVE
Unilux INC	Saddle Brook	NJ	—	● ACTIVE
United Process Controls INC	Oak Creek	WI	20–99	● ACTIVE
USUSA Scientific, INC.	Ocala	FL	—	● ACTIVE
U. S. Dynamics Corporation	Amityville	NY	—	● ACTIVE
Uster Technologies, INC	Knoxville	TN	—	● ACTIVE
Valco Instruments CO INC	Houston	TX	100–499	● ACTIVE
Validyne Engineering CORP	Canoga Park	CA	—	● ACTIVE
VIVarioscale, INC	Vista	CA	—	● ACTIVE
VMVenture Measurement Company LLC	Spartanburg	SC	20–99	● ACTIVE
Vernier Software & Technology INC.	Beaverton	OR	100–499	● ACTIVE
Vertex Optics, INC.	Victor	NY	—	● ACTIVE

FactoryRegistry lists 3,982 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 parts for industrial process control instruments (excluding parts for automatic residential and commercial environmental control systems and for major appliance controls), 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.