Manufacturing of process control instruments

Facility	City	State	Employees	Status
Fujifilm Sonosite INC	Bothell	WA	500+	● ACTIVE
Gatan INC	Pleasanton	CA	20–99	● ACTIVE
GIGatan INC	Warrendale	PA	100–499	● ACTIVE
Graco High Pressure Equipment INC.	Erie	PA	20–99	● ACTIVE
Griswold Industries	Costa Mesa	CA	100–499	● ACTIVE
Hach Company	Loveland	CO	500+	● ACTIVE
Hamilton Company	Reno	NV	—	● ACTIVE
Huntron INC	Mill Creek	WA	—	● ACTIVE
Illumina, INC.	San Diego	CA	—	● ACTIVE
Innovaprep LLC	Drexel	MO	20–99	● ACTIVE
Interlaken Technology Company, LLC	Chaska	MN	—	● ACTIVE
Kemet Electronics Corporation	Simpsonville	SC	100–499	● ACTIVE
Kimball Physics INC	Wilton	NH	20–99	● ACTIVE
KCKnowles Cazenovia INC.	Cazenovia	NY	100–499	● ACTIVE
K&r Technologies LLC	Frederick	MD	—	● ACTIVE
Leco CORP	Saint Joseph	MI	—	● ACTIVE
Leslie Controls, INC.	Tampa	FL	100–499	● ACTIVE
Lexair INC	Lexington	KY	20–99	● ACTIVE
LTLoad Technology INC	Mesquite	NV	—	● ACTIVE
Magtech & Power Conversion, INC.	Fullerton	CA	—	● ACTIVE
Marki Microwave LLC	Morgan Hill	CA	100–499	● ACTIVE
Medica CORP	Bedford	MA	—	● ACTIVE
Mettler-toledo Rainin, LLC	Oakland	CA	500+	● ACTIVE
Micronix USA LLC	Fountain Valley	CA	20–99	● ACTIVE
National Electrostatics CORP	Middleton	WI	20–99	● ACTIVE
Nova Biomedical CORP	Waltham	MA	500+	● ACTIVE
Nova Measuring Instruments INC.	Fremont	CA	100–499	● ACTIVE
Ocenco INC	Pleasant Prairie	WI	20–99	● ACTIVE
Omega Ems	San Jose	CA	100–499	● ACTIVE
Pacific Instruments, INC.	Concord	CA	20–99	● ACTIVE
Parr Instrument Company	Moline	IL	20–99	● ACTIVE
Percival Scientific Incorporated	Perry	IA	20–99	● ACTIVE
Peter Paul Electronics Co., INC.	New Britain	CT	100–499	● ACTIVE
Picarro, INC	Santa Clara	CA	100–499	● ACTIVE
Pine Test Equipment INC	Grove City	PA	—	● ACTIVE
Polarity INC.	Rancho Cordova	CA	20–99	● ACTIVE
Precision Filters, INC.	Ithaca	NY	20–99	● ACTIVE
Prime Technology LLC	North Branford	CT	20–99	● ACTIVE
QTQa Technology Company, INC.	Hampton	NH	20–99	● ACTIVE
Quality Thermistor, INC	Boise	ID	1–19	● ACTIVE
Quantum Design, INC.	San Diego	CA	100–499	● ACTIVE
Resonetics LLC	Nashua	NH	100–499	● ACTIVE
RSRichard-allan Scientific LLC	Kalamazoo	MI	—	● ACTIVE
Robert M. Hadley Company, INC.	Ventura	CA	20–99	● ACTIVE
Sable Systems International, INC	North Las Vegas	NV	20–99	● ACTIVE
Scheerer Bearing CORP	Willow Grove	PA	20–99	● ACTIVE
Sensorex Corporation	Garden Grove	CA	20–99	● ACTIVE
Siemens Manufacturing CO INC	Freeburg	IL	100–499	● ACTIVE
Si Manufacturing, INC	Anaheim	CA	20–99	● ACTIVE
Siskiyou CORP	Grants Pass	OR	20–99	● ACTIVE

FactoryRegistry lists 3,551 facilities whose primary industry classification is one of the 5 industries above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced process control 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 5 US manufacturing industries in the 2022 Economic Census, as the most specific line those industries reported. At least 45 establishments reported producing it; the count for 2 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 2017625000. 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.