Heat treating of metal for the trade

Facility	City	State	Employees	Status
HMHewitt Machine - Mfg INC	Nicollet	MN	20–99	◐ LIKELY ACTIVE
HPHexagon Purus NA	Westminster	MD	20–99	◐ LIKELY ACTIVE
HSH&h Sheetmetal, INC.	Russellville	KY	—	◐ LIKELY ACTIVE
HHH & H Tool, INC	Lapeer	MI	100–499	◐ LIKELY ACTIVE
HMHiawatha Metalcraft INC	Minneapolis	MN	—	◐ LIKELY ACTIVE
HFHibbing Fabricators INC	Hibbing	MN	20–99	◐ LIKELY ACTIVE
HTHighland Tank, LLC (Manheim, PA)	Manheim	PA	100–499	◐ LIKELY ACTIVE
HMHightech Machining INC.	Pacoima	CA	—	◐ LIKELY ACTIVE
HHiLine	Duluth	MN	100–499	◐ LIKELY ACTIVE
HAHill Afb	Hill Air Force Base	UT	—	◐ LIKELY ACTIVE
HMHill Mfg INC	Wauseon	OH	20–99	◐ LIKELY ACTIVE
HEHills Engineering Inc.	Carol Stream	IL	1–19	◐ LIKELY ACTIVE
HEHillside Engineering, INC.	Danvers	MA	—	◐ LIKELY ACTIVE
HYHinckley Yacht Services	Portsmouth	RI	100–499	◐ LIKELY ACTIVE
HHitchdoc	Jackson	MN	100–499	◐ LIKELY ACTIVE
HPHi-tec Plating INC	Seneca	SC	—	◐ LIKELY ACTIVE
HMHi-tek Manufacturing INC	Mason	OH	100–499	◐ LIKELY ACTIVE
HKH & K Perforating QPI LLC	Carbondale	PA	20–99	◐ LIKELY ACTIVE
HMHL Mando America Corporation - G2	Hogansville	GA	100–499	◐ LIKELY ACTIVE
HLH & L Tool Company INC	Madison Heights	MI	20–99	◐ LIKELY ACTIVE
HPHMC Performane Coatings	Tonganoxie	KS	20–99	◐ LIKELY ACTIVE
HMHobson & Motzer, LLC - Durham, CT	Durham	CT	100–499	◐ LIKELY ACTIVE
HFHodge Foundry	Greenville	PA	20–99	◐ LIKELY ACTIVE
HIHolan, INC	Irwin	PA	—	◐ LIKELY ACTIVE
HTHolbrook Tool & Molding INC	Meadville	PA	20–99	◐ LIKELY ACTIVE
HLHollis Line Machine Co., INC.	Milford	NH	—	◐ LIKELY ACTIVE
HCHollymatic CORP	Countryside	IL	20–99	◐ LIKELY ACTIVE
HSHolt Specialty Equipment	Eagleville	TN	—	◐ LIKELY ACTIVE
HPHome Products International INC	Seymour	IN	—	◐ LIKELY ACTIVE
HIHoneywell International INC.	Tulsa	OK	—	◐ LIKELY ACTIVE
HIHoneywell International INC.	Rocky Mount	NC	—	◐ LIKELY ACTIVE
HIHoneywell International INC.	Torrance	CA	—	◐ LIKELY ACTIVE
HPHoneywell Palmetto, FL	Palmetto	FL	100–499	◐ LIKELY ACTIVE
HSHoneywell San Tan Remote Test Facility	Queen Creek	AZ	1–19	◐ LIKELY ACTIVE
HCHoosier Coatings LLC	Nappanee	IN	—	◐ LIKELY ACTIVE
HMHorizon Manufacturing Group	Lake Mills	WI	20–99	◐ LIKELY ACTIVE
HRHorspool & Romine Mfg CO INC	Oakland	CA	—	◐ LIKELY ACTIVE
HMHot Melt Technologies INC	Rochester Hills	MI	20–99	◐ LIKELY ACTIVE
HFHouston Facility	Houston	TX	20–99	◐ LIKELY ACTIVE
HPHouston Plating Company - Humble	Humble	TX	20–99	◐ LIKELY ACTIVE
HSHouston Service Industries	Houston	TX	20–99	◐ LIKELY ACTIVE
HIHoward Industries	Fairview	PA	20–99	◐ LIKELY ACTIVE
HGHowmet Global Fastening Systems INC	Fullerton	CA	—	◐ LIKELY ACTIVE
HGHowmet Global Fastening Systems INC.	Torrance	CA	—	◐ LIKELY ACTIVE
HTHowmet - Tempcraft	Cleveland	OH	100–499	◐ LIKELY ACTIVE
HIHpz INC	Toledo	IL	—	◐ LIKELY ACTIVE
HRH & R Mfg. and Supply, INC.	Willis	TX	20–99	◐ LIKELY ACTIVE
HTHubbard Tool & Die CORP.	Rome	NY	20–99	◐ LIKELY ACTIVE
HMHudson Machine and Tool	Hammond	WI	20–99	◐ LIKELY ACTIVE
HCHumboldt Craft Spirits	Eureka	CA	—	◐ LIKELY ACTIVE
HEHunter Engineering Company Raymond Plant	Raymond	MS	500+	◐ LIKELY ACTIVE
HIHunter Industries/DBA Sousa & DeMayo	Attleboro Falls	MA	20–99	◐ LIKELY ACTIVE
HMHunter Machine INC.	Victor	NY	20–99	◐ LIKELY ACTIVE
HAHutchinson Aerospace & Industry, INC.	Hopkinton	MA	—	◐ LIKELY ACTIVE
HIHV Industries	Trevose	PA	20–99	◐ LIKELY ACTIVE
HWH & W Manufacturing	Spring	TX	20–99	◐ LIKELY ACTIVE
HWH W Nicholson Welding & Manufacturing INC	Apollo	PA	—	◐ LIKELY ACTIVE
HLHybar LLC	Osceola	AR	100–499	◐ LIKELY ACTIVE
HMHydro-fitting Manufacturing Corporation	Covina	CA	—	◐ LIKELY ACTIVE
HUHypertech Usa, INC.	Ventura	CA	—	◐ LIKELY ACTIVE
HTHytech Tool & Design CO.	Edinboro	PA	20–99	◐ LIKELY ACTIVE
IIIcf Industries, INC.	Pleasant Hill	MO	20–99	◐ LIKELY ACTIVE
ISI-con Systems, INC.	Oviedo	FL	20–99	◐ LIKELY ACTIVE
ICIcs CO LLC	Brighton	CO	—	◐ LIKELY ACTIVE
IBICT Billet LLC	Wichita	KS	20–99	◐ LIKELY ACTIVE
IIIda International, INC.	Derby	CT	1–19	◐ LIKELY ACTIVE
ICIdeal Clamp Products INC	Smyrna	TN	100–499	◐ LIKELY ACTIVE
IPIllinois Pulley & Gear INC	Schaumburg	IL	20–99	◐ LIKELY ACTIVE
IIImage Industries	Carrollton	TX	20–99	◐ LIKELY ACTIVE
IBImasen Bucyrus Technology Inc,	Bucyrus	OH	100–499	◐ LIKELY ACTIVE
IIImg Inta LLC	Santa Clara	CA	—	◐ LIKELY ACTIVE
IBImm Boatlifts INC	Fort Myers	FL	—	◐ LIKELY ACTIVE
ICImperial Casting Company, INC.	Florence	AL	—	◐ LIKELY ACTIVE
Imperial Machine & Tool CO	Blairstown	NJ	20–99	◐ LIKELY ACTIVE
IPImperial Plating CORP	Lyndhurst	NJ	—	◐ LIKELY ACTIVE
ITImperial Trailer Mfg. & Sales, INC.	Olney	IL	—	◐ LIKELY ACTIVE
IEIms Engineered Products LLC	Des Plaines	IL	—	▲ REPORTED CLOSED
IFIncertec Florida LLC	Titusville	FL	—	◐ LIKELY ACTIVE
IHIncertec Heat Treating LLC	Indianapolis	IN	—	◐ LIKELY ACTIVE
ICIncoe Corporation	Auburn Hills	MI	100–499	◐ LIKELY ACTIVE
ITIndiana Tool & Die	Indiana	PA	20–99	◐ LIKELY ACTIVE
ICIndustraplate CORP	Wilmington	DE	—	◐ LIKELY ACTIVE
Industrial Automation LLC	Rochester Hills	MI	1–19	◐ LIKELY ACTIVE
ICIndustrial Chrome INC	Topeka	KS	—	◐ LIKELY ACTIVE
ICIndustrial Connections - Solutions LLC	Mebane	NC	500+	◐ LIKELY ACTIVE
ICIndustrial Container Serv - Lakeland LLC	Auburndale	FL	—	◐ LIKELY ACTIVE
IFIndustrial Finishing INC	Franklin Park	IL	—	◐ LIKELY ACTIVE
IHIndustrial Hardware Distributors, INC.	North Kansas City	MO	—	◐ LIKELY ACTIVE
IMIndustrial Machine Works, Incorporated	Waynesboro	VA	—	◐ LIKELY ACTIVE
IMIndustrial Manufacturing Inc.	Albany	GA	100–499	◐ LIKELY ACTIVE
IMIndustrial Metal Fabricators, INC.	Columbus	GA	20–99	◐ LIKELY ACTIVE
IMIndustrial Metal Processing, INC	Santee	CA	—	◐ LIKELY ACTIVE
IMIndustrial Metal Products CO	Sharon	MA	20–99	◐ LIKELY ACTIVE
IPIndustrial Parts Specialties, LLC	Port Allen	LA	20–99	◐ LIKELY ACTIVE
IPIndustrial Plating Company, Inc. (2)	Chattanooga	TN	1–19	◐ LIKELY ACTIVE
IPIndustrial Plating INC	Omaha	NE	—	◐ LIKELY ACTIVE
IWIndustrial Weldors & Machinists, Inc	Duluth	MN	20–99	◐ LIKELY ACTIVE
ICInfinity Contacts, INC.	Rancho Cucamonga	CA	—	▲ REPORTED CLOSED
ISInfinity Systems, INC.	Yorba Linda	CA	—	◐ LIKELY ACTIVE
ICIngersoll Cutting Tool Company	Rockford	IL	100–499	◐ LIKELY ACTIVE

FactoryRegistry lists 36,628 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.