Company lists · Data refreshed October 2026

Top 25 Fire resistant & retardant insulation suppliers worldwide

Name: Fire resistant & retardant insulation suppliers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 4,187 companies tracked

RevenueBase identified 4,187 company matches for fire resistant & retardant insulation suppliers worldwide as of October 2026 and tracks 44,292 professional contacts across them, including 11,683 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for fire resistant & retardant insulation suppliers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 25, 2026. Country and city lists for fire resistant & retardant insulation suppliers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 25, 2026 How this list was built

4,187Companies

44,292Contacts tracked

11,683Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest fire resistant & retardant insulation suppliers worldwide

Ranked by team size

Top 25 of 4,187 company matches for fire resistant & retardant insulation suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Knauf Insulation	Exact match	Vise, BelgiumHQ recorded Oct 25, 2026	5,001-10,000	1,705 contacts →
	Exact match “Knauf Insulation is one of the world’s largest manufacturers of insulation products and solutions.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2	Armacell	Exact match	Capellen, LuxembourgHQ recorded Oct 25, 2026	1,001-5,000	1,384 contacts →
	Exact match “ARMACELL - DRIVING ENERGY EFFICIENCY Armacell is the inventor of flexible elastomeric foams for equipment insulation.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	Kingspan Group	Exact match	Kingscourt, IrelandHQ recorded Oct 25, 2026	10001+	975 contacts →
	Exact match “At Kingspan, we're on a mission to transform the built environment through inspiration, innovation and insight.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	Recticel	Exact match	Brussels, BelgiumHQ recorded Oct 25, 2026	1,001-5,000	755 contacts →
	Exact match “Recticel Group is a leading insulation company with headquarters in Belgium and operations in eight countries across Europa and the US.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Topbuild	Exact match	Daytona Beach, FL, United StatesHQ recorded Oct 25, 2026	n/a	652 contacts →
	Exact match “TopBuild is now QXO.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	Ursa By Etex	Exact match	Madrid, SpainHQ recorded Oct 25, 2026	1,001-5,000	618 contacts →
	Exact match “URSA is a company dedicated to the manufacture and commercialization of thermal and acoustic insulation materials oriented towards sustainability and energy efficiency in…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	SPI	Exact match	Charlotte, NC, United StatesHQ recorded Oct 25, 2026	1,001-5,000	529 contacts →
	Exact match “SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	Distribution International	Exact match	Houston, TX, United StatesHQ recorded Oct 25, 2026	1,001-5,000	484 contacts →
	Exact match “Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	Alpha Insulation & Waterproofing	Exact match	Marietta, GA, United StatesHQ recorded Oct 25, 2026	501-1,000	344 contacts →
	Exact match “With over a quarter-century of experience in commercial insulation, waterproofing, spray fireproofing, spray foam insulation, and restoration, Alpha has served as the benchmark…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	General Insulation Company, INC	Exact match	Medford, MA, United StatesHQ recorded Oct 25, 2026	501-1,000	342 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	Encon & Nevill Long	Exact match	Wetherby, United KingdomHQ recorded Oct 25, 2026	501-1,000	331 contacts →
	Exact match “Insulation, drywall, ceilings, construction products, external facades, flooring, partitioning, passive fire protection: whatever your project, Encon has the product range…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Wego Systembaustoffe Gmbh	Exact match	Hanau-steinheim, GermanyHQ recorded Oct 25, 2026	1,001-5,000	315 contacts →
	Exact match “Wego Systembaustoffe GmbH ist mit dem Bereich Wärme, Kälte, Schall- und Brandschutz mit der Sparte VTI (Vertrieb Technischer Isolier- und Dämmstoffe) ein Tochterunternehmen der…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	Tmjo Teras Meisei Joint Operation	Exact match	IndonesiaHQ recorded Oct 25, 2026	501-1,000	308 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Macarthur CO	Exact match	St. Paul, MN, United StatesHQ recorded Oct 25, 2026	501-1,000	279 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Thévenin Officiel	Exact match	Saint Cyr En Val, FranceHQ recorded Oct 25, 2026	201-500	270 contacts →
	Exact match “Fondée en 1974, Thévenin SA s’est construite autour de valeurs fortes : proximité, écoute, courage, ambition, organisation, esprit d’entreprendre.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Litt Diffusion SAS	Exact match	Malakoff, FranceHQ recorded Oct 25, 2026	201-500	240 contacts →
	Exact match “Depuis près de 40 ans, LiTT est en France, le distributeur spécialiste de l’aménagement intérieur et de l’isolation.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	I&i Insulations, INC	Exact match	Harahan, LA, United StatesHQ recorded Oct 25, 2026	1,001-5,000	229 contacts →
	Exact match “Founded in New Orleans, LA in 1970, Insulations, Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	NUTEC	Exact match	Huntersville, NC, United StatesHQ recorded Oct 25, 2026	201-500	219 contacts →
	Exact match “NUTEC is a leading manufacturer of superior quality, high-temperature insulation and fire protection products.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Specified Technologies Inc. STI Firestop	Exact match	Somerville, NJ, United StatesHQ recorded Oct 25, 2026	201-500	194 contacts →
	Exact match “For over 30 years, our team has worked hand in hand with the construction industry to create simple solutions to complex firestopping problems.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	Interior Supply, INC	Exact match	Columbus, OH, United StatesHQ recorded Oct 25, 2026	201-500	187 contacts →
	Exact match “Interior Supply Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Sofradi	Exact match	Treillières, FranceHQ recorded Oct 25, 2026	201-500	167 contacts →
	Exact match “Installée sur 30 dans l’agglomération nantaise, SOFRADI, SOciété FRAnçaise D’Isolation s’impose depuis 1977 sur le marché de l’isolation.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	Siderise Group	Exact match	Maesteg, United KingdomHQ recorded Oct 25, 2026	201-500	165 contacts →
	Exact match “Siderise is a global expert in the design, manufacture, and supply of high-performance passive fire protection solutions for the building envelope.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	Rolling Plains Construction	Exact match	Apache Junction, AZ, United StatesHQ recorded Oct 25, 2026	201-500	163 contacts →
	Exact match “Rolling Plains Construction was incorporated in Colorado in September of 1984.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	Isar Isolamentos Térmicos E Acústicos Ltda	Exact match	São Paulo, BrazilHQ recorded Oct 25, 2026	201-500	161 contacts →
	Exact match “A Isar atua como fornecedora de sistemas isolantes para todas as áreas do setor industrial e da construção civil desde 1980, sendo uma das mais tradicionais empresas…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	Fletcher Insulation	Exact match	Dandenong South, AustraliaHQ recorded Oct 25, 2026	201-500	160 contacts →
	Exact match “Fletcher Insulation stands as a leading Australian manufacturer, distributor, and technical support provider for the building construction industry in insulation.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “fire resistant & retardant insulation suppliers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 4,187 fire resistant & retardant insulation suppliers worldwide

See the full list, filter by size, metro and specialty, and access 11,683 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Fire resistant & retardant insulation suppliers worldwide at a glance

As of Oct 25, 2026

26.4%Verified-email coverage

10.6Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · London

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

1,667

11-50

1,608

51-200

597

201-500

173

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for fire resistant & retardant insulation suppliers are linked below.
What qualifies: Company records worldwide whose business descriptions match “fire resistant & retardant insulation suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 11,683 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 25, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Fire resistant & retardant insulation suppliers by location

22 lists · largest first

Every Fire resistant & retardant insulation suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “fire resistant & retardant insulation suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fire resistant & retardant insulation suppliers are there worldwide?

RevenueBase identified 4,187 company matches for fire resistant & retardant insulation suppliers worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Knauf Insulation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most fire resistant & retardant insulation suppliers?

The United States leads with 901 companies, followed by the United Kingdom (382) and France (234). Every fire resistant & retardant insulation suppliers list by country and city is linked on this page.

Which city has the most fire resistant & retardant insulation suppliers?

London leads with 39 company records, followed by Istanbul (37) and Houston (27).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 11,683 professional contacts with verified work emails tracked across these 4,187 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 25, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,187 fire resistant & retardant insulation suppliers worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.