Manufacturing of metalworking die and die sets

Facility	City	State	Employees	Status
Metal Improvement Company, LLC	Twinsburg	OH	—	● ACTIVE
Metal Improvement Company, LLC	Addison	IL	—	● ACTIVE
MIMetal Improvement Company, LLC	Santa Ana	CA	—	● ACTIVE
MIMetal Improvement Company, LLC	Milwaukee	WI	20–99	● ACTIVE
Metal Improvement Company, LLC	Grand Prairie	TX	—	● ACTIVE
MIMetal Improvement Company, LLC	Lynwood	CA	—	● ACTIVE
MTMidwest Thermal Vac Mtv Incorporated	Kenosha	WI	—	● ACTIVE
Newton Heat Treating Company, INC.	Rowland Heights	CA	—	● ACTIVE
Nitrex INC	Aurora	IL	—	● ACTIVE
OIOmley Industries, INC.	Grants Pass	OR	—	● ACTIVE
Pacific Metallurgical, INC.	Kent	WA	—	● ACTIVE
Paulo Products CO	Saint Louis	MO	—	● ACTIVE
PIPeen-rite, INC.	Sun Valley	CA	—	● ACTIVE
Pioneer Metal Finishing LLC	Salt Lake City	UT	—	● ACTIVE
Renk America Marine & Industry LLC	Cincinnati	OH	20–99	● ACTIVE
RMRobbins Manufacturing Company, INC.	Fall River	MA	20–99	● ACTIVE
Solar Atmospheres of Michigan, INC.	Chesterfield	MI	20–99	● ACTIVE
Solar Atmospheres of Western Pennsylvania, INC.	Hermitage	PA	—	● ACTIVE
Solar Atmospheres Southeast, INC.	Greenville	SC	20–99	● ACTIVE
SMStack Metallurgical Services, LLC	Portland	OR	20–99	● ACTIVE
THTexas Heat Treating, INC.	Round Rock	TX	20–99	● ACTIVE
Tri-j Metal Heat Treating CO.	Pomona	CA	—	● ACTIVE
Triumph Processing INC	Lynwood	CA	—	● ACTIVE
Ultra Fine Specialty Products, LLC	Woonsocket	RI	—	● ACTIVE
Winston Heat Treating, INC.	Dayton	OH	—	● ACTIVE

FactoryRegistry lists 692 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 metalworking die and die sets, 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 4 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 2016200000. 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.