Heat treating of metal for the trade

Facility	City	State	Employees	Status
L'anse Manufacturing & Technology, INC.	Lanse	MI	—	● ACTIVE
LILanzen INC	Mancelona	MI	20–99	● ACTIVE
Larson Systems, INC.	Ham Lake	MN	—	● ACTIVE
Lasasco INC	Boise	ID	—	● ACTIVE
Laser Access LLC	Walker	MI	—	● ACTIVE
Laser Cutting CO	Harrison Township	MI	—	● ACTIVE
Laserform LLC	De Pere	WI	—	● ACTIVE
Laser Fusion Solutions LLC	Fairborn	OH	—	● ACTIVE
Laser Masters, INC.	Houston	TX	20–99	● ACTIVE
Laser North, INC	Baraga	MI	20–99	● ACTIVE
Laser Specialists, INC.	Fraser	MI	—	● ACTIVE
Laserstar Technologies Corporation	Orlando	FL	20–99	● ACTIVE
Lasers Unlimited, INC.	Grand Rapids	MI	—	● ACTIVE
LMLathrom Manufacturing INC	Wichita	KS	—	● ACTIVE
Lawson Screen Products INC	Saint Louis	MO	20–99	● ACTIVE
Layke, Incorporated	Phoenix	AZ	—	● ACTIVE
Layke Tool and Manufacturing CO	Meadville	PA	—	● ACTIVE
Layne West Manufacturing LLC	Boise	ID	—	● ACTIVE
L & B Laboratories INC	San Jose	CA	—	● ACTIVE
LCL C Metals INC	Austell	GA	—	● ACTIVE
Ldi Industries, INC.	Manitowoc	WI	—	● ACTIVE
LELeading Edge Manufacturing, LLC	Phoenix	AZ	—	● ACTIVE
Lean Manufacturing Group LLC	Valencia	CA	—	● ACTIVE
Leanwerks LLC	Ogden	UT	—	● ACTIVE
Leese & CO INC	Greensburg	PA	—	● ACTIVE
Lefiell Manufacturing Company	Santa Fe Springs	CA	—	● ACTIVE
Lenco Industries, INC.	Pittsfield	MA	—	● ACTIVE
LELentros Engineering, INC.	Ashland	MA	—	● ACTIVE
Leonard Machine Co, LLC	Cookeville	TN	—	● ACTIVE
Leroy Tool & Die INC	Leroy	MI	—	● ACTIVE
LSLevac Specialties INC.	Gold River	CA	—	● ACTIVE
Levan Machine CO INC	Fleetwood	PA	20–99	● ACTIVE
Levil Technology, CORP.	Oviedo	FL	—	● ACTIVE
LBLewis Bolt & Nut Company	La Junta	CO	100–499	● ACTIVE
Lewis Engineering Company	Marshall	TX	—	● ACTIVE
Lewis Precision & Cnc INC	Theodore	AL	—	● ACTIVE
Lewis Steel Works, INC.	Wrens	GA	—	● ACTIVE
Lex Products, LLC	Shelton	CT	—	● ACTIVE
L.f. Industries, INC.	Carlsbad	CA	—	● ACTIVE
Lg Metalworks LLC	Bloomington	IN	—	● ACTIVE
LMLh Medical	Fort Wayne	IN	—	● ACTIVE
L.h. Thomson Company, INC.	Macon	GA	—	● ACTIVE
LTLiberty Tool INC	Sterling Heights	MI	—	● ACTIVE
Liberty Turned Components, LLC	Milan	MI	—	● ACTIVE
Liberty Welding & Iron Works CO	Metairie	LA	—	● ACTIVE
Libra Guaymas LLC	Mentor	OH	—	● ACTIVE
Liburdi Turbine Services, LLC	Mooresville	NC	—	● ACTIVE
Lightning Aerospace LLC	Park City	KS	—	● ACTIVE
Linak U.s. INC.	Louisville	KY	—	● ACTIVE
Lincoln Structural Solutions LLC	Louisville	NE	—	● ACTIVE
Linde Advanced Material Technologies INC.	Indianapolis	IN	100–499	● ACTIVE
Lindsay Machine Works, INC	Independence	MO	—	● ACTIVE
Linear Machining Technology LLC	Irwin	PA	—	● ACTIVE
Linita Design & Mfg. CORP	Lackawanna	NY	20–99	● ACTIVE
LILisega, INC.	Kodak	TN	—	● ACTIVE
Ll Brown INC	Enola	PA	—	● ACTIVE
L & M Machining Corporation	Placentia	CA	—	● ACTIVE
Lockheed Martin Corporation	Pinellas Park	FL	—	● ACTIVE
LMLodge Manufacturing Company	South Pittsburg	TN	500+	● ACTIVE
Lodi Iron Works, INC.	Lodi	CA	—	● ACTIVE
Lodolce Machine Co, INC	Saugerties	NY	—	● ACTIVE
Log & Timber Connections LLC	Macon	GA	—	● ACTIVE
Long-lok LLC	Cincinnati	OH	—	● ACTIVE
Long-lok, LLC	Carson	CA	—	● ACTIVE
Long Machine, INC	Temecula	CA	—	● ACTIVE
Louca Mold & Aerospace Machining, INC	Auburn Hills	MI	—	● ACTIVE
Loughmiller Machine, Tool & Design	Loogootee	IN	20–99	● ACTIVE
Louis C Morin CO INC	North Billerica	MA	—	● ACTIVE
Loutech LLC	Chino	CA	—	● ACTIVE
Lovejoy Chaplet CORP	Hoosick Falls	NY	—	● ACTIVE
L & P Manufacturing Company	Jonesville	IN	—	● ACTIVE
L S Industries, INC	Wichita	KS	20–99	● ACTIVE
Lynchburg Machining, LLC	Lynchburg	VA	—	● ACTIVE
Lynco Grinding Company INC	Bell Gardens	CA	—	● ACTIVE
Lyons Tool & Die Company,the	Meriden	CT	20–99	● ACTIVE
Lzk Manufacturing, INC	Shrewsbury	PA	—	● ACTIVE
M-1 Tool Works, INC.	Mchenry	IL	20–99	● ACTIVE
MPM3 Precision, LLC	Santa Maria	CA	20–99	● ACTIVE
Mac Cal CO	San Jose	CA	—	● ACTIVE
Mace Machine LLC	Exeter	NH	—	● ACTIVE
MFMac Fasteners, INC.	Ottawa	KS	20–99	● ACTIVE
Machine and Components Industries, INC	Louisville	KY	—	● ACTIVE
Machine Concepts INC	Minster	OH	100–499	● ACTIVE
Machine Sciences CORP	Tualatin	OR	100–499	● ACTIVE
MSMachine Specialties, LLC	Whitsett	NC	—	● ACTIVE
Machine Specialty & Manufacturing, INC	Youngsville	LA	—	● ACTIVE
Machine Tool Research, INC.	Rochester	NY	20–99	● ACTIVE
Machinewell, INC.	Grygla	MN	—	● ACTIVE
Machineworks Manufacturing	Northridge	CA	—	● ACTIVE
Machinist Group LLC	Reno	NV	20–99	● ACTIVE
Machintek CO	Fairfield	OH	20–99	● ACTIVE
Mach Machine INC	Hudson	MA	—	● ACTIVE
Macias Sheet Metal	Los Angeles	CA	—	● ACTIVE
Mackenzie Machine & Design INC	Pembroke	MA	—	● ACTIVE
Mac Products, INC	Kearny	NJ	—	● ACTIVE
Mactech Incorporated	Red Wing	MN	—	● ACTIVE
Madison Defense Research LLC	Waunakee	WI	—	● ACTIVE
Magellan Aerospace, Haverhill, INC	Haverhill	MA	100–499	● ACTIVE
Magellan Aerospace, Middletown, INC	Middletown	OH	100–499	● ACTIVE
Magic Metals, INC.	Union Gap	WA	—	● ACTIVE

FactoryRegistry lists 36,661 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.