Manufacturing of parts and accessories for electricity and…

Facility	City	State	Employees	Status
Quantum Composers, INC	Bozeman	MT	—	● ACTIVE
Quantum Focus Instruments Corporation	Vista	CA	—	● ACTIVE
Quantum Northwest, INC.	Liberty Lake	WA	—	● ACTIVE
QLQuarksen LLC	Mansfield	MA	—	● ACTIVE
QSQuidelortho Sales Company, LLC	San Diego	CA	—	● ACTIVE
Radar Engineers INC.	Portland	OR	—	● ACTIVE
Rad Elec INC	Frederick	MD	—	● ACTIVE
Radiometer America, INC.	Brea	CA	—	● ACTIVE
Radom Instruments, LLC	Pewaukee	WI	—	● ACTIVE
Rame-hart Instrument Company, LLC	Succasunna	NJ	—	● ACTIVE
Ram Meter INC	Royal Oak	MI	—	● ACTIVE
Rapid Tests Direct LLC	Clearwater	FL	—	● ACTIVE
Rave Scientific LLC	Somerset	NJ	—	● ACTIVE
RWRa Wood Associates LLC	Frankfort	NY	—	● ACTIVE
RMRay-check Manufacturing, INC.	Fresno	CA	—	● ACTIVE
Rbd Instruments, INC	Bend	OR	—	● ACTIVE
Recovery Monitoring Solutions, LLC	Dallas	TX	—	● ACTIVE
Red Heritage Medical Diagnostics Company LLC	Knoxville	TN	—	● ACTIVE
Redshift Bioanalytics INC	Boxborough	MA	—	● ACTIVE
Reedholm Systems CORP	Georgetown	TX	—	● ACTIVE
Renaissance Scientific, INC.	Boulder	CO	—	● ACTIVE
Research Laboratory Supply, INC.	Pompano Beach	FL	—	● ACTIVE
Resonance Research INC	Billerica	MA	—	● ACTIVE
Resonant Sensors Incorporated	Arlington	TX	—	● ACTIVE
Resonon, INC.	Bozeman	MT	—	● ACTIVE

FactoryRegistry lists 2,305 facilities whose primary industry classification is one of the 2 industries above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced parts and accessories for electricity and electrical signal indicating and recording 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.

The U.S. Census Bureau recorded this product line in 2 US manufacturing industries in the 2022 Economic Census, as the most specific line those industries reported. At least 34 establishments reported producing it; the count for 1 of those industries was withheld.

These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.

NAPCS collection code 2045230009. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.