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

Facility	City	State	Employees	Status
EPElcon Precision, LLC	San Jose	CA	20–99	● ACTIVE
Ferrotec (usa) Corporation	Livermore	CA	100–499	● ACTIVE
Filtronetics, INC.	Kansas City	MO	20–99	● ACTIVE
Gatan INC	Pleasanton	CA	20–99	● ACTIVE
GIGatan INC	Warrendale	PA	100–499	● ACTIVE
Gooch & Housego (palo Alto) LLC	Fremont	CA	20–99	● ACTIVE
Honeywell International INC.	Freeport	IL	500+	● ACTIVE
I3 Assembly LLC	Binghamton	NY	100–499	● ACTIVE
Interconnect Solutions CO LLC	Fountain Valley	CA	100–499	● ACTIVE
Kitron Technologies INC.	Windber	PA	100–499	● ACTIVE
KCKnowles Cazenovia INC.	Cazenovia	NY	100–499	● ACTIVE
Korry Electronics CO	Everett	WA	100–499	● ACTIVE
Leda Corporation	Huntington Beach	CA	—	● ACTIVE
LELiberty Electronics INC	Franklin	PA	100–499	● ACTIVE
LTLoad Technology INC	Mesquite	NV	—	● ACTIVE
Massa Products Corporation	Hingham	MA	20–99	● ACTIVE
Mcx, INC.	Klamath Falls	OR	—	● ACTIVE
Means Engineering, INC.	Carlsbad	CA	20–99	● ACTIVE
Microwave Engineering Corporation	North Andover	MA	20–99	● ACTIVE
Midcon Cables Co, INC.	North Myrtle Beach	SC	20–99	● ACTIVE
Mk Magnetics, INC.	Adelanto	CA	20–99	● ACTIVE
Mph Industries, INC	Owensboro	KY	100–499	● ACTIVE
Mti-milliren Technologies INC	Newburyport	MA	—	● ACTIVE
Narda Holdings, INC.	Hauppauge	NY	100–499	● ACTIVE
NENortheast Electronics CORP	Milford	CT	20–99	● ACTIVE

FactoryRegistry lists 1,635 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.