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| Company | What they do | Location | Size | Hiring |
|---|---|---|---|---|
Dover Insulationdoverinsulation.com |
Dover Insulation is a family-owned, third-generation mechanical insulator based in Marion, North Carolina, operating since 1965 an | Marion, North Carolina | 1-10 | — |
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 BS  SB JR |
— | — | — | |
Insulconinsulcon.com |
Insulcon Gaskets Insulation Venice S.P.A. manufactures and supplies thermal insulation, fire protection, industrial gaskets and te | — | — | — |
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 | — |
ArcelorMittalarcelormittal.com  FSSFRT |
ArcelorMittal is a steel solutions and services company operating through three specialized business lines: Foundation Solutions, | Heijningen, Illinois | 51-200 | — |
NCInciinc.com |
NCI is an AI company that helps U.S. federal agencies deploy secure AI technologies through its Empower AI Platform, delivering ta | Reston, Virginia | 51-200 | — |
Thermonthermon.com CTJOCH |
Thermon is a global industrial process heating company that designs and manufactures heat trace, heating systems, temporary power, | Austin, Texas | 1001-5000 | — |
InsulTech LLCinsultech.com |
InsulTech LLC designs, manufactures, and installs custom thermal insulation systems for power generation, air systems, and process | Santa Ana, California | 51-200 | — |
Thermasheaththermasheath.com |
— | — | — | |
Insulfoaminsulfoam.com |
Insulfoam is a division of Carlisle Weatherproofing Technologies (Carlisle Companies, NYSE: CSL) and the nation's largest manufact | Puyallup, Washington | 51-200 | — |
Owens Corningowenscorning.com JBRHKK |
Owens Corning is a building products leader, founded in 1938 and based in Toledo, Ohio, that supplies residential and commercial b | Toledo, Ohio | 5000+ | — |
Kingspankingspan.com AS  TT AR |
Kingspan is a global building products manufacturer known for insulation, building envelope, roofing, and energy-efficient constru | — | — | — |
Saint Gobainsaint-gobain.com |
— | — | — | |
ROCKWOOLrockwool.com  MG CR VT |
ROCKWOOL is a manufacturer of high-performance stone wool insulation products for the construction industry, offering rigid boards | Roermond, Limburg | 201-1000 | — |
BASFbasf.com |
— | — | — | |
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 | — |
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 | — |
Knauf Insulationknaufinsulation.com |
Knauf Insulation is a global manufacturer of mineral wool insulation for buildings, producing glass mineral wool, rock mineral woo | — | — | — |
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 | — |
PAROCparoc.com |
PAROC is a Finnish stone wool insulation manufacturer producing energy-efficient and fire resilient insulation products for buildi | Helsinki, Uusimaa | 201-1000 | — |
Firestonebpcofirestonebpco.com |
Eastern Architectural Representatives is a wholesale building materials distributor in Woburn, Massachusetts, representing Firesto | Woburn, Massachusetts | 1-10 | — |
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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Dover Insulation is a family-owned, third-generation mechanical insulator based in Marion, North Carolina, operating since 1965 and serving industrial customers across the Midwest with mechanical insulation work.
Companies like Dover Insulation include Johns Manville, Armacell, Insulcon, KIMMCO-Isover, ArcelorMittal. See the full list of 24 competitors and alternatives above.
Dover Insulation has approximately 1-10 employees and is in the Industrial Machinery Manufacturing industry.
Dover Insulation is headquartered in Marion, North Carolina.
Dover Insulation operates in the Industrial Machinery Manufacturing industry.
Key decision-makers and buying contacts at Dover Insulation are listed above, including leaders across executive, finance, sales and operations.