Manufacturing of nuclear valves (N-stamp only), excluding parts

Facility	City	State	Employees	Status
KTKFV - Tanner	Houston	TX	20–99	◐ LIKELY ACTIVE
KKilgore	Kilgore	TX	20–99	◐ LIKELY ACTIVE
KKimball	Kimball	TN	100–499	◐ LIKELY ACTIVE
KLKupferle, LLC	Fenton	MO	20–99	◐ LIKELY ACTIVE
LIL6 INC.	Broken Arrow	OK	—	◐ LIKELY ACTIVE
LCLake Charles	Sulphur	LA	100–499	◐ LIKELY ACTIVE
LPLa Porte	La Porte	TX	100–499	◐ LIKELY ACTIVE
LLuling	Luling	LA	20–99	◐ LIKELY ACTIVE
MVMAC VALVES INC Dundee Plant	Dundee	MI	20–99	◐ LIKELY ACTIVE
MVMAC VALVES INC Wixom Plant	Wixom	MI	100–499	◐ LIKELY ACTIVE
MMadison	Madison	KS	20–99	◐ LIKELY ACTIVE
MCMarotta Controls, Inc. (Montville)	Montville	NJ	100–499	◐ LIKELY ACTIVE
MMMEC main	Marshall	MI	100–499	◐ LIKELY ACTIVE
Milwaukee Valve Company Inc. - Prairie du Sac	Prairie Du Sac	WI	100–499	◐ LIKELY ACTIVE
MIMOGAS Industries Inc.	Houston	TX	100–499	◐ LIKELY ACTIVE
MMonroe	Monroe	LA	20–99	◐ LIKELY ACTIVE
MBMorrison Bros. Mfg.	Dubuque	IA	20–99	◐ LIKELY ACTIVE
MWMueller Water Products	Decatur	IL	100–499	◐ LIKELY ACTIVE
MMM/v Marine, INC.	Jacksonville	FL	—	◐ LIKELY ACTIVE
NSNJL Services, LLC	Belmont	NC	20–99	◐ LIKELY ACTIVE
NCNooney Controls, Inc.	North Kingstown	RI	20–99	◐ LIKELY ACTIVE
OSOil States Industries Piper Valve	Oklahoma City	OK	20–99	◐ LIKELY ACTIVE
OTOlson Technologies	Allentown	PA	20–99	◐ LIKELY ACTIVE
PPenn-Troy	Troy	PA	20–99	◐ LIKELY ACTIVE
PTPenn Troy Manufacturing INC	Troy	PA	—	◐ LIKELY ACTIVE
PPettipaug	Westbrook	CT	100–499	◐ LIKELY ACTIVE
PFPietro Fiorentini USA Inc.	Weirton	WV	20–99	◐ LIKELY ACTIVE
PVPlast-o-matic Valves, Incorporated	Cedar Grove	NJ	—	◐ LIKELY ACTIVE
PGPlug Group	Westbrook	CT	20–99	◐ LIKELY ACTIVE
PAPort Allen	Port Allen	LA	1–19	◐ LIKELY ACTIVE
PAPort Arthur	Port Arthur	TX	20–99	◐ LIKELY ACTIVE
PVPortland Valve LLC	Warren	MA	—	◐ LIKELY ACTIVE
PVPrecision Valve & Automation INC	Halfmoon	NY	100–499	◐ LIKELY ACTIVE
Proportion-Air, Inc. - South	Gulf Breeze	FL	1–19	◐ LIKELY ACTIVE
RRRaymond R Gould	Whittier	CA	—	◐ LIKELY ACTIVE
RGRestrictor Group	Westbrook	CT	100–499	◐ LIKELY ACTIVE
RRichwod	Richwood	TX	20–99	◐ LIKELY ACTIVE
RARogers and Morgan, INC.	Knoxville	TN	—	◐ LIKELY ACTIVE
SVSalina Vortex Corporation - Vortex 1725	Salina	KS	100–499	◐ LIKELY ACTIVE
SGSolenoid Group	Westbrook	CT	100–499	◐ LIKELY ACTIVE
SVSoutheast Valve, Inc.	Pineville	NC	20–99	◐ LIKELY ACTIVE
SStar	River Grove	IL	20–99	◐ LIKELY ACTIVE
SPSuperior Products, Inc	Cleveland	OH	20–99	◐ LIKELY ACTIVE
SHSwagelok Highland/Falon	Highland Heights	OH	100–499	◐ LIKELY ACTIVE
SMSwagelok Micro/Atlantic	Willoughby Hills	OH	100–499	◐ LIKELY ACTIVE
SVSwagelok Valley City	Valley City	OH	20–99	◐ LIKELY ACTIVE
SCSystematic Controls CORP	Kennesaw	GA	—	◐ LIKELY ACTIVE
TDTaprite-Alamo Downs (2)	San Antonio	TX	1–19	◐ LIKELY ACTIVE
TTaprite-NWC	San Antonio	TX	100–499	◐ LIKELY ACTIVE
TDThe Dixon Group, INC	Chestertown	MD	—	◐ LIKELY ACTIVE

FactoryRegistry lists 714 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 nuclear valves (N-stamp only), excluding parts, 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 15 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 2044980000. 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.