Manufacturing of electron tubes and parts

Census designationManufacturing of electron tubes and parts, including light-emitting devices (excluding glass blanks and X-ray tubes)

Facility	City	State	Employees	Status
EIEsam INC	Grants Pass	OR	100–499	◐ LIKELY ACTIVE
EIEvissap INC.	San Jose	CA	—	◐ LIKELY ACTIVE
FIFerrite International CO INC	Wadsworth	IL	—	◐ LIKELY ACTIVE
GHGardan - Hortonville	Hortonville	WI	20–99	◐ LIKELY ACTIVE
GBGowanda BTI LLC DBA Microwave Circuits	Beltsville	MD	1–19	◐ LIKELY ACTIVE
GIGreenray Industries, INC.	Mechanicsburg	PA	—	◐ LIKELY ACTIVE
GCGsi Corporation	Lutherville Timonium	MD	—	◐ LIKELY ACTIVE
HQHayward Quartz Technology INC	Fremont	CA	100–499	◐ LIKELY ACTIVE
HTHeadway Technologies INC	Milpitas	CA	500+	◐ LIKELY ACTIVE
HEHoffman Enclosures INC	Anoka	MN	—	◐ LIKELY ACTIVE
HMHoffman Materials LLC	Carlisle	PA	—	◐ LIKELY ACTIVE
HIHoneywell INC Tampa Div	Tampa	FL	—	◐ LIKELY ACTIVE
HIHoneywell International Sunnyval	Sunnyvale	CA	20–99	◐ LIKELY ACTIVE
HCHorlick Company, LLC	Randolph	MA	—	◐ LIKELY ACTIVE
IEImperial Electronic Assembly, INC.	Brookfield	CT	100–499	◐ LIKELY ACTIVE
IEInterstate Electronics CORP	Anaheim	CA	100–499	◐ LIKELY ACTIVE
IPG Photonics Corporation - Midwest Sales	Novi	MI	20–99	◐ LIKELY ACTIVE
KMK&l Microwave LLC	Salisbury	MD	—	◐ LIKELY ACTIVE
LSLake Shore Cryotronics Woburn	Woburn	MA	20–99	◐ LIKELY ACTIVE
LCLander CO INC	Binghamton	NY	—	◐ LIKELY ACTIVE
LELiberty Electronics - Reno	Reno	PA	1–19	◐ LIKELY ACTIVE
LELittle Enterprises, LLC	Ipswich	MA	—	◐ LIKELY ACTIVE
LMLockheed Martin Command & Control System	Colorado Springs	CO	—	◐ LIKELY ACTIVE
MSMagnetic Sensors CORP	Anaheim	CA	20–99	◐ LIKELY ACTIVE
MSManagement Solutions, L.c.	Louisa	VA	—	◐ LIKELY ACTIVE

FactoryRegistry lists 1,665 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 electron tubes and parts, including light-emitting devices (excluding glass blanks and X-ray tubes), 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.