Manufacturing of other test equipment, including multimeters and loaded circuit board test equipment

Facility	City	State	Employees	Status
Virginia Diodes, INC.	Charlottesville	VA	—	● ACTIVE
Viridia Lab, LLC	Zephyr	TX	—	● ACTIVE
Vitrek, LLC	Lockport	IL	—	● ACTIVE
Volta Insite US INC	Cornelius	NC	—	● ACTIVE
V Technical Textiles INC	Newark	NY	—	● ACTIVE
Ward/davis Associates, INC.	Redondo Beach	CA	—	● ACTIVE
WKWayne Kerr Electronics INC	Woburn	MA	—	● ACTIVE
WTWestern Test Systems, INC.	Hanna	WY	—	● ACTIVE
Westest Engineering Corporation	Layton	UT	—	● ACTIVE
Whel-tech INC	Catonsville	MD	—	● ACTIVE
Windfreak Technologies, LLC.	New Port Richey	FL	—	● ACTIVE
Winsoft, INC.	Santa Ana	CA	—	● ACTIVE
Wohler Retrotec INC	Everson	WA	—	● ACTIVE
World Precision Instruments, LLC	Saint Petersburg	FL	—	● ACTIVE
Xena Networks INC	Milpitas	CA	—	● ACTIVE
XIXilectric, INC	Fall River	MA	—	● ACTIVE
Xsoptix LLC	Madison	CT	—	● ACTIVE
X-tronic International, INC	Lincoln	NE	—	● ACTIVE
ZIZts INC	Cincinnati	OH	—	● ACTIVE
HCHankook & Company Es America CORP.	Clarksville	TN	100–499	◐ LIKELY ACTIVE
MDMaterials Development Corporation	Chatsworth	CA	—	◐ LIKELY ACTIVE
Ramsey Electronics, LLC	Victor	NY	—	◐ LIKELY ACTIVE
Trek, INC.	Lockport	NY	—	◐ LIKELY ACTIVE
American Aerospace Controls INC	Farmingdale	NY	—	◐ LIKELY ACTIVE
Applied Engineering Technology, INC.	San Jose	CA	—	◐ LIKELY ACTIVE
Aukua Systems, INC.	Austin	TX	—	◐ LIKELY ACTIVE
Btech INC.	Rockaway	NJ	—	◐ LIKELY ACTIVE
Currently LLC	Matthews	NC	—	◐ 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
Fischer Custom Communications INC	Torrance	CA	—	◐ LIKELY ACTIVE
Graphtec America, INC.	Irvine	CA	—	◐ LIKELY ACTIVE
Hgl Dynamics, INC.	Indianapolis	IN	—	◐ LIKELY ACTIVE
Hitools INC.	Irvine	CA	—	◐ LIKELY ACTIVE
Hotline Electrical Sales & Service LLC	Parker	CO	—	◐ LIKELY ACTIVE
LELh Enterprises, LLC	Fairfax	VA	—	◐ LIKELY ACTIVE
Liquid Instruments INC	San Diego	CA	—	◐ LIKELY ACTIVE
Milliwave Silicon Solutions, INC.	San Jose	CA	—	◐ LIKELY ACTIVE
NTNanoport Technologies LLC	Friday Harbor	WA	—	◐ LIKELY ACTIVE
Ofil USA LTD.	Pine Mountain	GA	—	◐ LIKELY ACTIVE
Optellent INC.	Saratoga	CA	—	◐ LIKELY ACTIVE
PIPacketmicro, INC.	Santa Clara	CA	—	◐ LIKELY ACTIVE
PMPolyphase Microwave INC.	Bloomington	IN	—	◐ LIKELY ACTIVE
Powertek US INC	Holbrook	NY	—	◐ LIKELY ACTIVE
Praxsym INC	Fisher	IL	—	◐ LIKELY ACTIVE
Prostat CORP	Glendale Heights	IL	—	◐ LIKELY ACTIVE
Sifos Technologies INC	Andover	MA	—	◐ LIKELY ACTIVE
Siglent Technologies NA INC	Solon	OH	—	◐ 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
Valid8.com, INC.	Wakefield	MA	—	◐ LIKELY ACTIVE
VLVerivolt LLC	San Francisco	CA	—	◐ LIKELY ACTIVE
WIWavecontrol INC	Roseland	NJ	—	◐ LIKELY ACTIVE
WIWeetech INC	Gurnee	IL	—	◐ LIKELY ACTIVE
Wenzel Associates, INC.	Austin	TX	—	◐ LIKELY ACTIVE
1H110 Hidden Lake	Duncan	SC	100–499	◐ LIKELY ACTIVE
ATAdvantest Test Solutions INC	Lake Forest	CA	100–499	◐ LIKELY ACTIVE
AIAlphalab, INC.	Salt Lake City	UT	—	◐ LIKELY ACTIVE
ACAnritsu Company	Morgan Hill	CA	—	◐ LIKELY ACTIVE
BTBird Technologies Group & BEC	Solon	OH	100–499	◐ LIKELY ACTIVE
BIBitronics INC	Bethlehem	PA	20–99	◐ LIKELY ACTIVE
DPData Physics Corporation	Riverside	CA	—	◐ LIKELY ACTIVE
DCDigital Check CORP	Northbrook	IL	—	◐ LIKELY ACTIVE
Doble Engineering Company (Houston, TX)	Houston	TX	1–19	◐ LIKELY ACTIVE
Doble Engineering Company (Ontario, CA)	Ontario	CA	20–99	◐ LIKELY ACTIVE
EEpirus	Torrance	CA	100–499	◐ LIKELY ACTIVE
JCJanteq CORP	Irvine	CA	—	◐ LIKELY ACTIVE
JAJem America CORP	Fremont	CA	20–99	◐ LIKELY ACTIVE
JIJohnstech International	Minneapolis	MN	20–99	◐ LIKELY ACTIVE
KTKeysight Technologies INC	Loveland	CO	—	◐ LIKELY ACTIVE
MIMidtronics, INC	Willowbrook	IL	—	◐ LIKELY ACTIVE
MIMillivac Instruments, INC	Schenectady	NY	—	◐ LIKELY ACTIVE
NTNsi-mi Technologies LLC	Torrance	CA	20–99	◐ LIKELY ACTIVE
PIPeerless Instrument Co., INC.	Farmingdale	NY	—	◐ LIKELY ACTIVE
PIPhaostron Instrument and Electronic Company	Azusa	CA	—	◐ LIKELY ACTIVE
PBPhoenix Broadband Technologies	Hatfield	PA	20–99	◐ LIKELY ACTIVE
QMQ Microwave INC	El Cajon	CA	—	◐ LIKELY ACTIVE
RBRobert Bosch LLC	Anderson	SC	500+	◐ LIKELY ACTIVE
SESignal Engineering INC	San Diego	CA	—	◐ LIKELY ACTIVE
STSilvus Technologies, INC.	Los Angeles	CA	—	◐ LIKELY ACTIVE
SCSpanawave Corporation	Roseville	CA	—	◐ LIKELY ACTIVE
SPSure Power, INC	Torrance	CA	—	◐ LIKELY ACTIVE
TRTech Resources, INC	Milford	NH	—	◐ LIKELY ACTIVE
TLTeledyne Lecroy Test Services	Marion	MA	20–99	◐ LIKELY ACTIVE
VViasat	Carlsbad	CA	500+	◐ LIKELY ACTIVE
World Precision Instruments INC	Sarasota	FL	20–99	◐ LIKELY ACTIVE
ARAlpha Resources LLC	Stevensville	MI	—	◐ LIKELY ACTIVE
BIBemco INC	Simi Valley	CA	—	◐ LIKELY ACTIVE
ATAgilent Technologies, INC.	Santa Rosa	CA	—	◇ UNVERIFIED
KTKeysight Technologies	Roseville	CA	—	◇ UNVERIFIED
ACAccumac CORP	Gilbert	AZ	—	◐ LIKELY ACTIVE
ACAccuprobe CORP	Salem	MA	—	◐ LIKELY ACTIVE
AIAdvanced Integration, LLC	Reynoldsburg	OH	—	◐ LIKELY ACTIVE
ASAh Systems INC	Chatsworth	CA	—	◐ LIKELY ACTIVE
AIA-info INC	Irvine	CA	—	◐ LIKELY ACTIVE
ACAll-tag Corporation	Boca Raton	FL	20–99	◐ LIKELY ACTIVE
ACAllwave CORP	Torrance	CA	—	◐ LIKELY ACTIVE

FactoryRegistry lists 822 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 other test equipment, including multimeters and loaded circuit board test equipment, 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 1 US manufacturing industry in the 2022 Economic Census, as the most specific line that industry reported, where 147 establishments reported producing it.

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 2017675058. 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.