Manufacturing of electrical indicating, recording, and other instruments to measure electricity, including indicator panels and portable electricity measuring instruments

Facility	City	State	Employees	Status
Smartsat INC	Largo	FL	—	● ACTIVE
Sonix, INC.	Springfield	VA	—	● ACTIVE
Space Coast Photonics CORP	Melbourne	FL	—	● ACTIVE
Spea America, L.l.c.	Tyler	TX	—	● ACTIVE
SISpectradynamics INC	Louisville	CO	—	● ACTIVE
Spectra Lab, LLC	Dumfries	VA	—	● ACTIVE
Spectrum Instrumentation CORP	Hackensack	NJ	—	● ACTIVE
SLSubinitial LLC	Santee	CA	—	● ACTIVE
Subsea Circuits, INC.	Sauk Centre	MN	—	● ACTIVE
Summit Technology, INC	Pleasant Hill	CA	—	● ACTIVE
Sunsight Instruments, LLC	Orlando	FL	—	● ACTIVE
Suprock Technologies LLC	Warren	NH	—	● ACTIVE
Swabian Instruments Usa, INC.	Boston	MA	—	● ACTIVE
STSynergent Technologies, INC	Frederick	MD	—	● ACTIVE
Talus Communications, LLC	Mound House	NV	—	● ACTIVE
Tecknowledgey INC.	Peekskill	NY	—	● ACTIVE
Tegam, INC.	Denver	CO	—	● ACTIVE
Tektest, INC	Baldwin Park	CA	—	● ACTIVE
Tektronix, INC.	Beaverton	OR	—	● ACTIVE
Telecommunications Concepts INC.	Harrisville	RI	—	● ACTIVE
TLTeledyne Lecroy, INC.	Chestnut Ridge	NY	—	● ACTIVE
Tel-instrument Electronics CORP	East Rutherford	NJ	—	● ACTIVE
Teraquant Corporation	Boulder	CO	—	● ACTIVE
Tesec, INC.	Gardena	CA	—	● ACTIVE
TETest Equipment Center, INC	Gainesville	GA	—	● ACTIVE
TUTestforce Usa, INC.	Addison	TX	—	● ACTIVE
Testrack INC	Bradenton	FL	—	● ACTIVE
Tevet LLC	Greeneville	TN	—	● ACTIVE
The R.t. Clark Companies, INC.	Oklahoma City	OK	—	● ACTIVE
The Von Corporation	Birmingham	AL	—	● ACTIVE
TWThomas W Black	Sparks Glencoe	MD	—	● ACTIVE
TCThread Check INC.	Ronkonkoma	NY	—	● ACTIVE
Titan Advanced Energy Solutions INC.	Salem	MA	—	● ACTIVE
Transformational Security, LLC	Columbia	MD	—	● ACTIVE
Transmille Calibration, INC.	Colchester	VT	—	● ACTIVE
Trio-tech International	Van Nuys	CA	—	● ACTIVE
Ttt-cubed INC	Fremont	CA	—	● ACTIVE
Ultrax Aerospace INC	Lees Summit	MO	—	● ACTIVE
United Instruments, INC	Westbury	NY	—	● ACTIVE
United Safety INC	Kalispell	MT	—	● ACTIVE
Universal Synaptics CORP	Ogden	UT	—	● ACTIVE
Utility Systems, INC.	Indianapolis	IN	—	● ACTIVE
Valon Technology, LLC	Redwood City	CA	—	● ACTIVE
Vaunix Technology Corporation	Newburyport	MA	—	● ACTIVE
Veex Florida INC.	Largo	FL	—	● ACTIVE
Vertilon Corporation	Westford	MA	—	● ACTIVE
Viarch Integrated Solutions, INC	Fullerton	CA	—	● ACTIVE
Viavi Solutions INC.	Germantown	MD	—	● ACTIVE
Virginia Diodes, INC.	Charlottesville	VA	—	● ACTIVE
Viridia Lab, LLC	Zephyr	TX	—	● ACTIVE

FactoryRegistry lists 819 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced electrical indicating, recording, and other instruments to measure electricity, including indicator panels and portable electricity measuring instruments, 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.