Company lists · Data refreshed September 2026

Top 25 Duct insulation manufacturers worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 4,742 companies tracked

RevenueBase identified 4,742 company matches for duct insulation manufacturers worldwide as of September 2026 and tracks 55,037 professional contacts across them, including 13,893 with verified work emails. The United States is the largest market and Istanbul the largest hub.

This list covers company matches for duct insulation manufacturers 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 September 30, 2026. Country and city lists for duct insulation manufacturers 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 Sep 30, 2026 How this list was built

4,742Companies

55,037Contacts tracked

13,893Verified emails

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The 25 largest duct insulation manufacturers worldwide

Ranked by team size

Top 25 of 4,742 company matches for duct insulation manufacturers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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 Sep 30, 2026	5,001-10,000	1,935 contacts →
	Exact match “Knauf Insulation is one of the world’s largest manufacturers of insulation products and solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Armacell	Exact match	Capellen, LuxembourgHQ recorded Sep 30, 2026	1,001-5,000	1,314 contacts →
	Exact match “ARMACELL - DRIVING ENERGY EFFICIENCY Armacell is the inventor of flexible elastomeric foams for equipment insulation.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Kingspan Insulation	Exact match	Leominster, United StatesHQ recorded Sep 30, 2026	1,001-5,000	955 contacts →
	Exact match “Kingspan Insulation is the industry leading manufacturer of innovative insulation solutions, which help create a more sustainable and energy efficient built environment.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Recticel	Exact match	Brussels, BelgiumHQ recorded Sep 30, 2026	1,001-5,000	707 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 · Sep 30, 2026 · View company records in RevenueBase
5	Topbuild	Exact match	Daytona Beach, FL, United StatesHQ recorded Sep 30, 2026	n/a	692 contacts →
	Exact match “TopBuild is now QXO.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Kaefer France	Exact match	Courbevoie, FranceHQ recorded Sep 30, 2026	1,001-5,000	671 contacts →
	Exact match “KAEFER WANNER, leader français de l’isolation industrielle, est un partenaire très demandé en Isolation Thermique Industrielle et Nucléaire, Echafaudage, Désamiantage, Protection…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Hira Industries LLC	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 30, 2026	1,001-5,000	612 contacts →
	Exact match “Hira Industries \| Serving the Building & Construction Industry Since 1980.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Ursa By Etex	Exact match	Madrid, SpainHQ recorded Sep 30, 2026	1,001-5,000	605 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 · Sep 30, 2026 · View company records in RevenueBase
9	SPI	Exact match	Charlotte, NC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	571 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 · Sep 30, 2026 · View company records in RevenueBase
10	Rockwool North America	Exact match	Milton, ON, CanadaHQ recorded Sep 30, 2026	1,001-5,000	493 contacts →
	Exact match “ROCKWOOL® is the world’s leading manufacturer of stone wool insulation.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Distribution International	Exact match	Houston, TX, United StatesHQ recorded Sep 30, 2026	1,001-5,000	488 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 · Sep 30, 2026 · View company records in RevenueBase
12	VON Roll	Exact match	Wesel, GermanyHQ recorded Sep 30, 2026	1,001-5,000	434 contacts →
	Exact match “Please note that this account is no longer being actively managed.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	General Insulation Company, INC	Exact match	Medford, MA, United StatesHQ recorded Sep 30, 2026	501-1,000	342 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Encon & Nevill Long	Exact match	Wetherby, United KingdomHQ recorded Sep 30, 2026	501-1,000	328 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 · Sep 30, 2026 · View company records in RevenueBase
15	Wego Systembaustoffe Gmbh	Exact match	Hanau-steinheim, GermanyHQ recorded Sep 30, 2026	1,001-5,000	302 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 · Sep 30, 2026 · View company records in RevenueBase
16	Macarthur CO	Exact match	St. Paul, MN, United StatesHQ recorded Sep 30, 2026	501-1,000	278 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	M&m Manufacturing Company	Exact match	Fort Worth, TX, United StatesHQ recorded Sep 30, 2026	501-1,000	251 contacts →
	Exact match “M&M Manufacturing™ (“M&M”) is one of the country’s largest producers of sheet metal products, primarily servicing the air distribution and ventilation market.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Thévenin Officiel	Exact match	Saint Cyr En Val, FranceHQ recorded Sep 30, 2026	201-500	251 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 · Sep 30, 2026 · View company records in RevenueBase
19	Southwark Metal Mfg. CO	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	235 contacts →
	Exact match “Southwark Metal Mfg.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Homans Associates	Exact match	Wilmington, MA, United StatesHQ recorded Sep 30, 2026	201-500	233 contacts →
	Exact match “Homans Associates is the premier distributor of HVAC Equipment, Supplies and Mechanical Insulation products in the Northeast.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Quietflex Manufacturing	Exact match	Houston, TX, United StatesHQ recorded Sep 30, 2026	501-1,000	231 contacts →
	Exact match “Quietflex Manufacturing is a manufacturer of Flex Duct for HVAC and Textile Fiberglass products based out of 4518 Brittmoore Rd, Houston, Texas, United States.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	I&i Insulations, INC	Exact match	Harahan, LA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	228 contacts →
	Exact match “Founded in New Orleans, LA in 1970, Insulations, Inc.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Litt Diffusion SAS	Exact match	Malakoff, FranceHQ recorded Sep 30, 2026	201-500	226 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 · Sep 30, 2026 · View company records in RevenueBase
24	Minster	Exact match	Coventry, United KingdomHQ recorded Sep 30, 2026	201-500	214 contacts →
	Exact match “Minster is one of the largest growing national specialist insulation and dry lining distributors in the UK.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Kingspan Unidek	Exact match	Gemert, NetherlandsHQ recorded Sep 30, 2026	10001+	209 contacts →
	Exact match “Kingspan Unidek is a supplier of innovative solutions for fast and efficient construction and insulation.” Recorded in the RevenueBase company graph · Sep 30, 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 “duct insulation manufacturers”. 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 4,742 duct insulation manufacturers worldwide

See the full list, filter by size, metro and specialty, and access 13,893 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Duct insulation manufacturers worldwide at a glance

As of Sep 30, 2026

25.2%Verified-email coverage

11.6Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Istanbul

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

1,722

11-50

1,767

51-200

786

201-500

263

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 duct insulation manufacturers are linked below.
What qualifies: Company records worldwide whose business descriptions match “duct insulation manufacturers” 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 13,893 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 September 30, 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.

Duct insulation manufacturers by location

27 lists · largest first

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

Countries

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 “duct insulation manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many duct insulation manufacturers are there worldwide?

RevenueBase identified 4,742 company matches for duct insulation manufacturers worldwide as of September 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 duct insulation manufacturers?

The United States leads with 940 companies, followed by the United Kingdom (321) and India (305). Every duct insulation manufacturers list by country and city is linked on this page.

Which city has the most duct insulation manufacturers?

Istanbul leads with 40 company records, followed by Mumbai (26) and Dubai (25).

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 13,893 professional contacts with verified work emails tracked across these 4,742 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 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 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.