Company lists · Data refreshed September 2026

Top 25 Rigid insulation manufacturers worldwide

Name: Rigid insulation manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 2,817 companies tracked

RevenueBase identified 2,817 rigid insulation manufacturers worldwide as of September 2026 and tracks 51,374 professional contacts across them, including 14,671 with verified work emails. The United States is the largest market and Istanbul the largest hub.

This list covers rigid insulation manufacturers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026. Country and city lists for rigid insulation manufacturers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

2,817Companies

51,374Contacts tracked

14,671Verified emails

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The 25 largest rigid insulation manufacturers worldwide

Ranked by team size

Top 25 of 2,817 rigid insulation manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to rigid insulation manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	KNAUF	Indirect evidence	Iphofen, GermanyHQ checked Sep 30, 2026	10001+	4,158 contacts →
	Indirect evidence “Everyone sees opportunity differently.” Source: RevenueBase Database · checked Sep 30, 2026
2	Johns Manville	Strong evidence	Denver, CO, United StatesHQ checked Sep 30, 2026	5,001-10,000	2,811 contacts →
	Strong evidence “At Johns Manville, we build on decades of experience to manufacture commercial roofing, premium-quality insulation and a variety of engineered products for our customers.” Source: RevenueBase Database · checked Sep 30, 2026
3	IKO North America	Partial evidence	Brampton, ON, CanadaHQ checked Sep 30, 2026	1,001-5,000	1,317 contacts →
	Partial evidence “IKO Roofing is a worldwide leader in the roofing, waterproofing, and insulation industry for residential and commercial markets.” Source: RevenueBase Database · checked Sep 30, 2026
4	Armacell	Partial evidence	Capellen, LuxembourgHQ checked Sep 30, 2026	1,001-5,000	1,314 contacts →
	Partial evidence “ARMACELL - DRIVING ENERGY EFFICIENCY Armacell is the inventor of flexible elastomeric foams for equipment insulation.” Source: RevenueBase Database · checked Sep 30, 2026
5	Kingspan Insulation	Strong evidence	Leominster, United StatesHQ checked Sep 30, 2026	1,001-5,000	955 contacts →
	Strong evidence “Kingspan Insulation is the industry leading manufacturer of innovative insulation solutions, which help create a more sustainable and energy efficient built environment.” Source: RevenueBase Database · checked Sep 30, 2026
6	Lloyd Insulations India Limited	Partial evidence	New Delhi, IndiaHQ checked Sep 30, 2026	1,001-5,000	868 contacts →
	Partial evidence “Lloyd Insulation is one of India’s leading companies offering end to end industry solutions that help create a more sustainable and energy-efficient built environment.” Source: RevenueBase Database · checked Sep 30, 2026
7	Recticel	Partial evidence	Brussels, BelgiumHQ checked Sep 30, 2026	1,001-5,000	707 contacts →
	Partial evidence “Recticel Group is a leading insulation company with headquarters in Belgium and operations in eight countries across Europa and the US.” Source: RevenueBase Database · checked Sep 30, 2026
8	Topbuild	Indirect evidence	Daytona Beach, FL, United StatesHQ checked Sep 30, 2026	n/a	692 contacts →
	Indirect evidence “TopBuild is now QXO.” Source: RevenueBase Database · checked Sep 30, 2026
9	Ursa By Etex	Strong evidence	Madrid, SpainHQ checked Sep 30, 2026	1,001-5,000	605 contacts →
	Strong evidence “URSA is a company dedicated to the manufacture and commercialization of thermal and acoustic insulation materials oriented towards sustainability and energy efficiency in…” Source: RevenueBase Database · checked Sep 30, 2026
10	SPI	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	571 contacts →
	Partial evidence “SPI is a global leader in the Distribution and Specialty Fabrication of insulation products for Thermal, Acoustic, Fire Protection and Refractory applications.” Source: RevenueBase Database · checked Sep 30, 2026
11	PAROC	Indirect evidence	Helsinki, FinlandHQ checked Sep 30, 2026	1,001-5,000	501 contacts →
	Indirect evidence “When you work with us you are making the world a better place.” Source: RevenueBase Database · checked Sep 30, 2026
12	Rockwool North America	Strong evidence	Milton, ON, CanadaHQ checked Sep 30, 2026	1,001-5,000	493 contacts →
	Strong evidence “ROCKWOOL® is the world’s leading manufacturer of stone wool insulation.” Source: RevenueBase Database · checked Sep 30, 2026
13	Kingspan Insulated Panels North America	Partial evidence	Deland, FL, United StatesHQ checked Sep 30, 2026	1,001-5,000	348 contacts →
	Partial evidence “Who We Are: Kingspan is a trusted leader in the design, manufacture and supply of high performance building products and solutions for the global property and construction…” Source: RevenueBase Database · checked Sep 30, 2026
14	Encon & Nevill Long	Partial evidence	Wetherby, United KingdomHQ checked Sep 30, 2026	501-1,000	328 contacts →
	Partial evidence “Insulation, drywall, ceilings, construction products, external facades, flooring, partitioning, passive fire protection: whatever your project, Encon has the product range…” Source: RevenueBase Database · checked Sep 30, 2026
15	Macarthur CO	Indirect evidence	St. Paul, MN, United StatesHQ checked Sep 30, 2026	501-1,000	278 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
16	Thévenin Officiel	Indirect evidence	Saint Cyr En Val, FranceHQ checked Sep 30, 2026	201-500	251 contacts →
	Indirect evidence “Fondée en 1974, Thévenin SA s’est construite autour de valeurs fortes : proximité, écoute, courage, ambition, organisation, esprit d’entreprendre.” Source: RevenueBase Database · checked Sep 30, 2026
17	Isopan	Partial evidence	Trevenzuolo Verona, ItalyHQ checked Sep 30, 2026	201-500	215 contacts →
	Partial evidence “Isopan, part of the Joint Venture between MANNI and Marcegaglia, is a leading manufacturer worldwide of insulated metal panels for walls and roofs.” Source: RevenueBase Database · checked Sep 30, 2026
18	Nucor Insulated Panel Group	Indirect evidence	Lewisville, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	209 contacts →
	Indirect evidence “Nucor’s Insulated Panel Group consists of two insulated metal panel brands, CENTRIA, and Metl-Span.” Source: RevenueBase Database · checked Sep 30, 2026
19	Kingspan Unidek	Partial evidence	Gemert, NetherlandsHQ checked Sep 30, 2026	10001+	209 contacts →
	Partial evidence “Kingspan Unidek is a supplier of innovative solutions for fast and efficient construction and insulation.” Source: RevenueBase Database · checked Sep 30, 2026
20	Synthesia Technology Group	Strong evidence	Castellbisbal Cataluna, SpainHQ checked Sep 30, 2026	201-500	191 contacts →
	Strong evidence “Company specialized in the manufacture and commercialization of chemical products, polyester polyols and polyurethane systems for thermal and acoustic insulation and diverse…” Source: RevenueBase Database · checked Sep 30, 2026
21	ALL Weather Insulated Panels	Indirect evidence	Vacaville, CA, United StatesHQ checked Sep 30, 2026	201-500	189 contacts →
	Indirect evidence “All Weather Insulated Panels Headquartered in Vacaville, CA, All Weather Insulated Panels (AWIP) has three state-of-the-art continuous line manufacturing facilities in Vacaville…” Source: RevenueBase Database · checked Sep 30, 2026
22	Assan Panel	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 30, 2026	201-500	180 contacts →
	Indirect evidence “Assan Panel, a leading organization in the sandwich panel industry, began manufacturing operations in 1990 withits first manufacturing plant in Tuzla, Istanbul.” Source: RevenueBase Database · checked Sep 30, 2026
23	OXXO	Indirect evidence	Bordj Bou Arreridj, AlgeriaHQ checked Sep 30, 2026	501-1,000	175 contacts →
	Indirect evidence “Solutions d'isolation à hautes performances thermiques, acoustiques et d'étanchéité” Source: RevenueBase Database · checked Sep 30, 2026
24	Actis Isolation	Indirect evidence	Limoux, FranceHQ checked Sep 30, 2026	201-500	166 contacts →
	Indirect evidence “PME familiale, née il y a 40 ans, la société Actis met au point un concept d’isolant avant-gardiste.” Source: RevenueBase Database · checked Sep 30, 2026
25	IKO PLC UK	Partial evidence	Wigan, United KingdomHQ checked Sep 30, 2026	201-500	165 contacts →
	Partial evidence “For over 100 years, we have been producing some of the industry's most innovative roofing, waterproofing, insulation, and infrastructure solutions.” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: rigid insulation manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names rigid insulation manufacturers.
Partial evidence: Its own public description names part of rigid insulation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rigid insulation manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,817 rigid insulation manufacturers worldwide

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Rigid insulation manufacturers worldwide at a glance

As of Sep 30, 2026

28.6%Verified-email coverage

18.2Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Istanbul

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

969

11-50

974

51-200

486

201-500

227

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among rigid insulation manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for rigid insulation manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “rigid insulation manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names rigid insulation manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among rigid insulation manufacturers, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 14,671 across the full list. 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 September 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Rigid insulation manufacturers by location

19 lists · largest first

Every Rigid insulation manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Rigid insulation manufacturers based in Istanbul, Türkiye32

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names rigid insulation manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many rigid insulation manufacturers are there worldwide?

RevenueBase identified 2,817 rigid insulation manufacturers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

KNAUF, headquartered in Iphofen, tops this list with the largest team on record.

Which country has the most rigid insulation manufacturers?

The United States leads with 496 companies, followed by Türkiye (160) and the United Kingdom (135). Every rigid insulation manufacturers list by country and city is linked on this page.

Which city has the most rigid insulation manufacturers?

Istanbul leads with 32 headquartered companies, followed by Auckland (13) and London (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 14,671 verified decision-maker contacts tracked across these 2,817 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.

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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 Smart Search, 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.