Heat treating of metal for the trade

Facility	City	State	Employees	Status
LFLMI Finishing, Inc. (Tulsa)	Tulsa	OK	100–499	◐ LIKELY ACTIVE
L&M Machining & Manufacturing	Warren	MI	20–99	◐ LIKELY ACTIVE
LPL&m Precision, INC	Valencia	CA	—	◐ LIKELY ACTIVE
L1Location 1	Bluffdale	UT	20–99	◐ LIKELY ACTIVE
L6Location 6 / PO	Port Orchard	WA	20–99	◐ LIKELY ACTIVE
LMLockheed Martin Corporation US PA Archbald Kennedy Dr (1547)	Archbald	PA	500+	◐ LIKELY ACTIVE
LILOCK-N-STITCH Inc.	Turlock	CA	20–99	◐ LIKELY ACTIVE
LLoftech	Vadnais Heights	MN	20–99	◐ LIKELY ACTIVE
LMLogistics Mgmt and Engineering	Flint	MI	20–99	◐ LIKELY ACTIVE
Lomar Machine & Tool Co. Plant 6	Horton	MI	20–99	◐ LIKELY ACTIVE
LBLong Beach CA	Long Beach	CA	20–99	◐ LIKELY ACTIVE
LMLookout Metal Works, LLC	Flintstone	GA	—	◐ LIKELY ACTIVE
LCLoos & Co., Inc. Pomfret	Pomfret Center	CT	100–499	◐ LIKELY ACTIVE
LMLoos Machine and Automation LLC	Colby	WI	100–499	◐ LIKELY ACTIVE
LALori Ann Oldham LLC	Barlow	KY	—	◐ LIKELY ACTIVE
LMLorraine Machine INC	Greenville	SC	—	◐ LIKELY ACTIVE
LALos Alamitos	Los Alamitos	CA	20–99	◐ LIKELY ACTIVE
LALos Angeles, Ca	Los Angeles	CA	1–19	◐ LIKELY ACTIVE
LMLoucks Mill	York	PA	20–99	◐ LIKELY ACTIVE
LILoudon Industries, INC	Mercersburg	PA	20–99	◐ LIKELY ACTIVE
LSLoudoun Sheet Metal Co. Inc	Chantilly	VA	100–499	◐ LIKELY ACTIVE
LLouisville	Louisville	MS	1–19	◐ LIKELY ACTIVE
LDLouisville Dryer Company	Louisville	KY	20–99	◐ LIKELY ACTIVE
LMLoveridge Machine & Tool INC	Salt Lake City	UT	—	◐ LIKELY ACTIVE
LTLowry Tool & Die, Inc.	Salem	OH	20–99	◐ LIKELY ACTIVE
LILPI Industries	Hollywood	FL	20–99	◐ LIKELY ACTIVE
LCL.r.g. Corporation	Jeannette	PA	—	◐ LIKELY ACTIVE
LHLR Hoist & Crane	Little Rock	AR	1–19	◐ LIKELY ACTIVE
LWLSM - Wauseon	Wauseon	OH	1–19	◐ LIKELY ACTIVE
LMLT Metal Masters, Inc.	Indianapolis	IN	1–19	◐ LIKELY ACTIVE
LALubeck American Systems LLC	Tyler	TX	—	◐ LIKELY ACTIVE
LMLuna Metal Works LLC	San Antonio	TX	—	◐ LIKELY ACTIVE
LMLVO Manufacturing Inc.	Rock Rapids	IA	20–99	◐ LIKELY ACTIVE
LWL & W Machine INC.	Norfolk	VA	—	◐ LIKELY ACTIVE
LLyman	Lyman	NE	20–99	◐ LIKELY ACTIVE
LCLynx Cnc Solutions CORP	San Jose	CA	—	◐ LIKELY ACTIVE
LMLyon Metal Roofing Greeneville	Greeneville	TN	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Hildebran	Hildebran	NC	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Jamesville	Jamesville	NC	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Mars Hill	Mars Hill	NC	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Morristown	Morristown	TN	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Pelzer	Pelzer	SC	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Plant	Piney Flats	TN	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Radford	Radford	VA	20–99	◐ LIKELY ACTIVE
LMLyon Metal Roofing Showroom	Piney Flats	TN	20–99	◐ LIKELY ACTIVE
LLLyonsedge Logistics L.l.c.	Newport News	VA	—	◐ LIKELY ACTIVE
LMLyons Manufacturing by Fenco Solutions	Louisville	KY	100–499	◐ LIKELY ACTIVE
LHLZ - Harris	Aurora	OH	20–99	◐ LIKELY ACTIVE
LDLZHQ - Danner	Aurora	OH	100–499	◐ LIKELY ACTIVE
LPLZ - Philipp	Streetsboro	OH	100–499	◐ LIKELY ACTIVE
MSM2M Synergy, LLC	Mukwonago	WI	20–99	◐ LIKELY ACTIVE
MPM2 Precision Machining CORP	San Jose	CA	—	◐ LIKELY ACTIVE
MMM45 Manufacturing LLC	Auburn	CA	—	◐ LIKELY ACTIVE
MBMaas Brothers Inc.	Livermore	CA	20–99	◐ LIKELY ACTIVE
M3MACH 3 Machining	Cuyahoga Falls	OH	20–99	◐ LIKELY ACTIVE
MBMachine Builders of New England LLC	Milford	CT	—	▲ REPORTED CLOSED
MCMachine Control Specialists INC	Roselle	IL	—	◐ LIKELY ACTIVE
MCMachine Craft INC	Dalton	GA	—	◐ LIKELY ACTIVE
MCMachined Castings Specialties, LLC	Rochester	IN	—	◐ LIKELY ACTIVE
MCMachined Concepts INC	South Elgin	IL	—	◐ LIKELY ACTIVE
MMMachined Metals Manufacturing	Collegeville	PA	20–99	◐ LIKELY ACTIVE
MPMachined Products Co., INC.	Knoxville	TN	—	◐ LIKELY ACTIVE
MSMachine Services Group	Carrollton	GA	20–99	◐ LIKELY ACTIVE
MSMachine Shop	De Pere	WI	20–99	◐ LIKELY ACTIVE
MSMachine Shop	Muncie	IN	1–19	◐ LIKELY ACTIVE
MBMachining Bright LLC	Toledo	OH	—	◐ LIKELY ACTIVE
MCMachining Concepts Inc.	Erie	PA	20–99	◐ LIKELY ACTIVE
MCMachining Concepts LLC	Germantown	WI	20–99	◐ LIKELY ACTIVE
MMMackentepe Machine & Tool, INC.	Vinemont	AL	—	◐ LIKELY ACTIVE
MAMacLean-Fogg Allanson	Mundelein	IL	100–499	◐ LIKELY ACTIVE
MRMacLean-Fogg Richmond	Richmond	IL	1–19	◐ LIKELY ACTIVE
MMMacLean Master EAST	Plymouth	MI	100–499	◐ LIKELY ACTIVE
MMMacLean Master WEST	Plymouth	MI	100–499	◐ LIKELY ACTIVE
MPMacLean Power Systems Mankato, LLC	Mankato	MN	100–499	◐ LIKELY ACTIVE
MMMac Manufacturing INC	Purcell	OK	—	◐ LIKELY ACTIVE
MIMactech, Inc. (Central)	Paducah	KY	1–19	◐ LIKELY ACTIVE
MIMactech, Inc. (Marinette)	Marinette	WI	1–19	◐ LIKELY ACTIVE
MIMactech, Inc. (North)	Red Wing	MN	20–99	◐ LIKELY ACTIVE
MIMactech, Inc. (South)	Broussard	LA	20–99	◐ LIKELY ACTIVE
MIMactech, Inc. (Texas)	Fort Worth	TX	1–19	◐ LIKELY ACTIVE
MEMaddog Enterprises INC.	Klamath Falls	OR	—	◐ LIKELY ACTIVE
MDMad Dragon Fire LLC	Seattle	WA	—	◐ LIKELY ACTIVE
MIMaden, INC.	Irvine	CA	—	◐ LIKELY ACTIVE
MMMag7 Machining, LLC	Lynnville	TN	—	◐ LIKELY ACTIVE
MAMag Automotive LLC	Sterling Heights	MI	—	◐ LIKELY ACTIVE
MAMagellan Aerospace Processing, New York Inc.	West Babylon, NY, 11704	NY	100–499	◐ LIKELY ACTIVE
MGMag Gunsmithing LLC	Somerset	PA	—	◐ LIKELY ACTIVE
MCMagic Circle	Coffeyville	KS	20–99	◐ LIKELY ACTIVE
MMMagic Machine CO LLC	Albuquerque	NM	—	◐ LIKELY ACTIVE
MMagnetek	Menomonee Falls	WI	100–499	◐ LIKELY ACTIVE
MMMagnum Metals, LLC	Nettleton	MS	20–99	◐ LIKELY ACTIVE
MMMagnus Metal INC.	Excelsior	MN	—	◐ LIKELY ACTIVE
MSMahs Services Group, INC.	Royal Palm Beach	FL	—	◐ LIKELY ACTIVE
MTMahuta Tool Corp	Germantown	WI	20–99	◐ LIKELY ACTIVE
MMain	Romeoville	IL	20–99	◐ LIKELY ACTIVE
MMain	Sugarcreek	OH	20–99	◐ LIKELY ACTIVE
MMain	Canton	MI	20–99	◐ LIKELY ACTIVE
MAMaine Auto Radiator Manufacturing CO INC	Lewiston	ME	—	◐ LIKELY ACTIVE
MMMaine Machine Products Company	South Paris	ME	—	◐ LIKELY ACTIVE
MFMain Facility	Wichita	KS	100–499	◐ LIKELY ACTIVE

FactoryRegistry lists 36,644 facilities whose primary industry classification is one of the 20 industries above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced Heat treating of metal for the trade (heat treating, annealing, brazing, shot peening, tempering, etc.), 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 20 US manufacturing industries in the 2022 Economic Census, as the most specific line those industries reported. At least 2,719 establishments reported producing it; the count for 7 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 2053450000. 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.