Manufacturing of process control instruments

Facility	City	State	Employees	Status
Dantec Dynamics, INC.	Nashua	NH	—	◐ LIKELY ACTIVE
Ds Instruments, LLC	Gardnerville	NV	—	◐ LIKELY ACTIVE
Dynamic Ratings, INC.	Sussex	WI	—	◐ LIKELY ACTIVE
Eko Instruments USA INC.	San Jose	CA	—	◐ LIKELY ACTIVE
Electro-optical Products CORP	Escondido	CA	—	◐ LIKELY ACTIVE
Fischer Custom Communications INC	Torrance	CA	—	◐ LIKELY ACTIVE
Florida Scientific Services, INC.	Port Orange	FL	—	◐ LIKELY ACTIVE
Fusion Link LLC	Westerville	OH	—	◐ LIKELY ACTIVE
Glass Expansion, INC.	Pocasset	MA	—	◐ LIKELY ACTIVE
Graphtec America, INC.	Irvine	CA	—	◐ LIKELY ACTIVE
Great Lakes Gages LLC	Metamora	MI	—	◐ LIKELY ACTIVE
Hgl Dynamics, INC.	Indianapolis	IN	—	◐ LIKELY ACTIVE
Hitools INC.	Irvine	CA	—	◐ LIKELY ACTIVE
Hogentogler & Co., INC.	Columbia	MD	—	◐ LIKELY ACTIVE
Hotline Electrical Sales & Service LLC	Parker	CO	—	◐ LIKELY ACTIVE
Hudson Lab Automation, INC.	Springfield	NJ	—	◐ LIKELY ACTIVE
Integrated Imaging INC	Ellicott City	MD	—	◐ LIKELY ACTIVE
ISIzon Science US LLC	Medford	MA	—	◐ LIKELY ACTIVE
J. A. Woollam Co., INC.	Lincoln	NE	—	◐ LIKELY ACTIVE
J D Gould Company INC	Indianapolis	IN	—	◐ LIKELY ACTIVE
Kinetic Systems INC	Roslindale	MA	—	◐ LIKELY ACTIVE
Koch Crystal Finishing INC	Elyria	OH	—	◐ LIKELY ACTIVE
KTKolmar Technologies, INC.	Newburyport	MA	—	◐ LIKELY ACTIVE
Kyocera Avx Components (erie) Corporation	Erie	PA	—	◐ LIKELY ACTIVE
Labconco CORP	Kansas City	MO	—	◐ LIKELY ACTIVE
Labtech, INC	Hopkinton	MA	—	◐ LIKELY ACTIVE
Leeds Precision Instruments INC	Minneapolis	MN	—	◐ LIKELY ACTIVE
LELh Enterprises, LLC	Fairfax	VA	—	◐ LIKELY ACTIVE
Life Science Products, Incorporated	Frederick	CO	—	◐ LIKELY ACTIVE
Liquid Instruments INC	San Diego	CA	—	◐ LIKELY ACTIVE
Lytechip INC.	Newton	MA	—	◐ LIKELY ACTIVE
Magritek INC	Malvern	PA	—	◐ LIKELY ACTIVE
Maple Leaf Photonics LLC	Bellingham	WA	—	◐ LIKELY ACTIVE
Milliwave Silicon Solutions, INC.	San Jose	CA	—	◐ LIKELY ACTIVE
MMMil-spec Magnetics, INC	Covina	CA	—	◐ LIKELY ACTIVE
Monstr Sense Technologies, LLC	Ann Arbor	MI	—	◐ LIKELY ACTIVE
NTNanoport Technologies LLC	Friday Harbor	WA	—	◐ LIKELY ACTIVE
Nanospec Instruments LLC	State College	PA	—	◐ LIKELY ACTIVE
Nanovea, INC.	Irvine	CA	—	◐ LIKELY ACTIVE
Nautilus Subsidiary, INC.	Seattle	WA	—	◐ LIKELY ACTIVE
NMNorlake Manufacturing CO	Elyria	OH	—	◐ LIKELY ACTIVE
Ocean Instruments of Washington, LLC	Fall City	WA	—	◐ LIKELY ACTIVE
Ofil USA LTD.	Pine Mountain	GA	—	◐ LIKELY ACTIVE
Optellent INC.	Saratoga	CA	—	◐ LIKELY ACTIVE
Opthos Instrument Company, LLC	Loveland	CO	—	◐ LIKELY ACTIVE
Optokhemia Analytical, LLC	Norman	OK	—	◐ LIKELY ACTIVE
OLOrsat LLC	Pasadena	TX	—	◐ LIKELY ACTIVE
PIPacketmicro, INC.	Santa Clara	CA	—	◐ LIKELY ACTIVE
PSPhasetech Spectroscopy INC.	Madison	WI	—	◐ LIKELY ACTIVE
Philumina LLC	Long Beach	MS	—	◐ LIKELY ACTIVE
Piconics, INC.	Tyngsboro	MA	—	◐ LIKELY ACTIVE
Pixcell Medical, INC	Longmont	CO	—	◐ LIKELY ACTIVE
PMPolyphase Microwave INC.	Bloomington	IN	—	◐ LIKELY ACTIVE
Postnova Analytics INC	Salt Lake City	UT	—	◐ LIKELY ACTIVE
Powertek US INC	Holbrook	NY	—	◐ LIKELY ACTIVE
Praxsym INC	Fisher	IL	—	◐ LIKELY ACTIVE
Precise Time & Frequency, LLC	Wakefield	MA	—	◐ LIKELY ACTIVE
Precision Measurement Engineering, INC.	Vista	CA	—	◐ LIKELY ACTIVE
Prostat CORP	Glendale Heights	IL	—	◐ LIKELY ACTIVE
Qualitest USA Lc	Plantation	FL	—	◐ LIKELY ACTIVE
Resynant, INC	Sun Prairie	WI	—	◐ LIKELY ACTIVE
Safe Drain Stormwater Holdings, INC.	Oakdale	CA	—	◐ LIKELY ACTIVE
SMSalty Marine Batteries LLC	Dania	FL	—	◐ LIKELY ACTIVE
SCSamson Controls, INC.	Baytown	TX	—	◐ LIKELY ACTIVE
Scientific Gear LLC	Fairfax	VA	—	◐ LIKELY ACTIVE
S.g. Frantz CO. INC.	Bristol	PA	—	◐ LIKELY ACTIVE
Sifos Technologies INC	Andover	MA	—	◐ LIKELY ACTIVE
Siglent Technologies NA INC	Solon	OH	—	◐ LIKELY ACTIVE
Simple Origin INC.	Pittsburgh	PA	—	◐ LIKELY ACTIVE
Solar Light Company, LLC	Glenside	PA	—	◐ LIKELY ACTIVE
Spang & Company	Phoenix	AZ	—	◐ LIKELY ACTIVE
SESpectron Engineering, INC.	Wheat Ridge	CO	—	◐ LIKELY ACTIVE
Spray Contec Incorporated	Centreville	VA	—	◐ LIKELY ACTIVE
Tabc Group, LLC	Seekonk	MA	—	◐ LIKELY ACTIVE
Tabor Electronics LLC	San Francisco	CA	—	◐ LIKELY ACTIVE
Test, LLC	Orlando	FL	—	◐ LIKELY ACTIVE
Thomas Electronics, INC.	Addison	IL	—	◐ LIKELY ACTIVE
Thrive Bioscience INC	Beverly	MA	—	◐ LIKELY ACTIVE
Transcon Technologies, LLC	Westfield	MA	—	◐ LIKELY ACTIVE
Trutag Technologies, INC	Emeryville	CA	—	◐ LIKELY ACTIVE
USUSA Spares Inc	Carlisle	PA	20–99	◐ LIKELY ACTIVE
VOVacuum One INC	Chicago	IL	—	◐ LIKELY ACTIVE
Vacuum Technology INC.	Woburn	MA	—	◐ LIKELY ACTIVE
Valid8.com, INC.	Wakefield	MA	—	◐ LIKELY ACTIVE
Valve Reconditioning Service CO	Melvindale	MI	—	◐ LIKELY ACTIVE
VLVerivolt LLC	San Francisco	CA	—	◐ LIKELY ACTIVE
Vizgen INC	Cambridge	MA	—	◐ LIKELY ACTIVE
Water Technology of Pensacola, INC	Pensacola	FL	—	◐ LIKELY ACTIVE
WIWavecontrol INC	Roseland	NJ	—	◐ LIKELY ACTIVE
WIWeetech INC	Gurnee	IL	—	◐ LIKELY ACTIVE
Wenzel Associates, INC.	Austin	TX	—	◐ LIKELY ACTIVE
Western Environmental Technology Laboratories, INC	Philomath	OR	—	◐ LIKELY ACTIVE
Yokogawa Fluid Imaging Technologies, INC.	Scarborough	ME	—	◐ LIKELY ACTIVE
1H110 Hidden Lake	Duncan	SC	100–499	◐ LIKELY ACTIVE
AIAalberts Integrated Piping Systems Americas, Inc. - Pearl Street Facility	Pageland	SC	100–499	◐ LIKELY ACTIVE
ACAdvanced Conversion VT	Barre	VT	20–99	◐ LIKELY ACTIVE
Advanced Instruments	Westbrook	ME	—	◐ LIKELY ACTIVE
ATAdvance Transformer CO	Boscobel	WI	—	◐ LIKELY ACTIVE
ATAdvantest Test Solutions INC	Lake Forest	CA	100–499	◐ LIKELY ACTIVE
ALAeriax LLC.	Mora	MN	20–99	◐ LIKELY 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.