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| Company | What they do | Location | Size | Hiring |
|---|---|---|---|---|
Insultherminsultherm.com |
Insul-Therm International, Inc. is an employee-owned insulation distributor and fabricator founded in 1982, serving as the largest | Commerce, California | 11-50 | — |
Atpwrapatpwrap.com |
Advanced Thermal Products (ATP) is a custom high-temperature insulation and alloy shielding manufacturer founded in 1972, fabricat | IRVINE, California | 1-10 | — |
Lewco SuperMatlewcosupermat.com |
Lewco SuperMat is a specialty insulation manufacturer based in Baton Rouge, Louisiana, producing high-temperature, chemically resi | Baton Rouge, Louisiana | 201-1000 | — |
Johns Manvillejohnsmanville.com |
Johns Manville is a Berkshire Hathaway manufacturing company based in Denver, CO, that produces commercial roofing, premium insula | Denver, Colorado | 11-50 | — |
Armacellarmacell.com  SC이MF |
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Owens Corningowenscorning.com BA  BA BM |
Owens Corning is a building products leader, founded in 1938 and based in Toledo, Ohio, that supplies residential and commercial b | Toledo, Ohio | 5000+ | — |
KIMMCO-Isoverisover.com |
KIMMCO-Isover is a joint-venture between Saint-Gobain and Alghanim, the GCC leader in mineral wool insulation for more than 43 yea | AlAhmadi, Al Ahmadi | 201-1000 | — |
Kingspankingspan.com RMPM  SB |
Kingspan is a global building products manufacturer known for insulation, building envelope, roofing, and energy-efficient constru | — | — | — |
Saint Gobainsaint-gobain.com |
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InsulationCoinsulationco.com |
InsulationCo is a residential insulation and home services contractor based in Bothell, Washington, serving King, Pierce, Kitsap, | Bothell, Washington | 1-10 | — |
Thermoseal Industries, LLCthermoseal.com |
Thermoseal Industries, LLC is a refrigeration company based in Irving, Texas, operating since 1956 with 11-50 employees and listed | Fort Worth, Texas | 11-50 | — |
Calsilcalsil.com |
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Polyguard Productspolyguard.com |
Polyguard Products is a building materials company founded in 1953 and based in Ennis, Texas, that manufactures surface and struct | ennis, Texas | 51-200 | — |
Heatfabheatfab.com |
Heatfab is a leading manufacturer of residential and commercial venting systems for Special Gas Vent applications, producing doubl | Turners Falls, Massachusetts | 1-10 | — |
Insulconinsulcon.com |
Insulcon Gaskets Insulation Venice S.P.A. manufactures and supplies thermal insulation, fire protection, industrial gaskets and te | — | — | — |
ROCKWOOLrockwool.com |
ROCKWOOL is a manufacturer of high-performance stone wool insulation products for the construction industry, offering rigid boards | Roermond, Limburg | 201-1000 | — |
BASFbasf.com |
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Celotexcelotex.co.uk |
Celotex (now SOPREMA UK, as of 1st January 2026) is a PIR and XPS insulation manufacturer and supplier based in Ipswich, Suffolk, | Ipswich, Suffolk | 51-200 | — |
Armstrongceilingsarmstrongceilings.com |
Armstrong World Industries, Inc. (AWI) is an Americas leader in the design and manufacture of interior and exterior architectural | Lancaster, Pennsylvania | 1001-5000 | — |
USG Corporationusg.com |
USG Corporation is a building products manufacturer headquartered in Chicago, producing wall, ceiling, flooring, sheathing, and ro | Chicago, Illinois | 5000+ | — |
Knaufknauf.com |
Knauf is a wholesale building materials company founded in 1978, headquartered in St. Helens, England, with operations spanning Eu | St. Helens, England | 51-200 | — |
Knauf Insulationknaufinsulation.com |
Knauf Insulation is a global manufacturer of mineral wool insulation for buildings, producing glass mineral wool, rock mineral woo | — | — | — |
DuPontdupont.com |
DuPont is a global advanced solutions provider that creates technology-based materials and solutions for industries shaping the fu | Wilmington, Delaware | 5000+ | — |
John Manson & Associatesjohnmanson.com |
Design | Chicago, Illinois | 1-10 | — |
PAROCparoc.com |
PAROC is a Finnish stone wool insulation manufacturer producing energy-efficient and fire resilient insulation products for buildi | Helsinki, Uusimaa | 201-1000 | — |
Georgfischergeorgfischer.com |
Georg Fischer Ltd (GF) is a Swiss industrial manufacturer of corrosion-free liquid transport solutions, producing polymer piping, | — | — | — |
Firestonebpcofirestonebpco.com |
Eastern Architectural Representatives is a wholesale building materials distributor in Woburn, Massachusetts, representing Firesto | Woburn, Massachusetts | 1-10 | — |
ArcelorMittalarcelormittal.com |
ArcelorMittal is a steel solutions and services company operating through three specialized business lines: Foundation Solutions, | Heijningen, Illinois | 51-200 | — |
Recticel Insulationrecticelinsulation.com |
Recticel Insulation is a Belgian insulation manufacturer and distributor of PIR and vacuum insulation panels for professional cons | Wevelgem, Flanders | 51-200 | — |
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Insul-Therm International, Inc. is an employee-owned insulation distributor and fabricator founded in 1982, serving as the largest insulation distributor/fabricator in the Western United States. The company produces and distributes high-quality insulation systems and accessories for high and low temperature industrial and commercial applications, ranging from -450° to 1200° F.
Companies like Insul-Therm International Inc. include Atpwrap, Lewco SuperMat, Johns Manville, Armacell, Owens Corning. See the full list of 24 competitors and alternatives above.
Insul-Therm International Inc. has approximately 11-50 employees and is in the Wholesale Building Materials industry.
Insul-Therm International Inc. is headquartered in Commerce, California.
Insul-Therm International Inc. operates in the Wholesale Building Materials industry.
Key decision-makers and buying contacts at Insul-Therm International Inc. are listed above, including leaders across executive, finance, sales and operations.