Company lists · Data refreshed September 2026
Top 25 Cellulose fiber insulation manufacturers worldwide
RevenueBase identified 2,289 cellulose fiber insulation manufacturers worldwide as of September 2026 and tracks 44,704 professional contacts across them, including 11,754 with verified work emails. The United States is the largest market and Istanbul the largest hub.
This list covers cellulose fiber 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 cellulose fiber 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.
The 25 largest cellulose fiber insulation manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,632 contacts → | ||||
Indirect evidence “At ROCKWOOL, everything we do is based on releasing the natural power of stone to enrich modern living.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,935 contacts → | ||||
Strong evidence “Knauf Insulation is one of the world’s largest manufacturers of insulation products and solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,549 contacts → | ||||
Indirect evidence “Eucatex S.A.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 886 contacts → | ||||
Partial evidence “Le français suivra** RYAM is the global leader of cellulose and derivatives commonly used in the production of filters, food, pharmaceuticals, high-performance plastics…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 692 contacts → | ||||
Indirect evidence “TopBuild is now QXO.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 501 contacts → | ||||
Indirect evidence “When you work with us you are making the world a better place.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 488 contacts → | ||||
Partial evidence “Distribution International (DI) a leading distributor of thermal and acoustical insulation and related supplies for maintenance and repair operations in the United States.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 302 contacts → | ||||
Indirect evidence “Wego Systembaustoffe GmbH ist mit dem Bereich Wärme, Kälte, Schall- und Brandschutz mit der Sparte VTI (Vertrieb Technischer Isolier- und Dämmstoffe) ein Tochterunternehmen der…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 295 contacts → | ||||
Indirect evidence “Tarihçe Türkiye yalıtım sektörünün öncüsü olarak 1965 yılında kurulan İzocam A.Ş'nin Gebze'deki ilk fabrikası 1967 yılında camyünü üretimine başlayarak faaliyete geçmiştir.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 214 contacts → | ||||
Indirect evidence “Seit der Unternehmensgründung im Jahr 1986 steht der Name STEICO für Bauprodukte aus dem nachwachsenden Rohstoff Holz.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 180 contacts → | ||||
Indirect evidence “Interior Supply Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 163 contacts → | ||||
Indirect evidence “La sinergia entre nuestras 3 plantas productivas nos convierte en un fabricante lider en sistemas de aislamiento acústico de espumados, componentes estructurales e interiores de…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 158 contacts → | ||||
Partial evidence “Saint-Gobain India – Insulation Business, as part of the global Saint-Gobain Group, carries a legacy woven from innovation and purpose.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 157 contacts → | ||||
Indirect evidence “A Isoeste Construtivos Isotérmicos se orgulha de ser líder em tecnologia na área de produtos com isolação térmica.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 148 contacts → | ||||
Strong evidence “Established in and headquartered in Charlotte, N.C, Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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: cellulose fiber 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 cellulose fiber insulation manufacturers.
- Partial evidence
- Its own public description names part of cellulose fiber insulation manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cellulose fiber 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 2,289 cellulose fiber insulation manufacturers worldwide
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Cellulose fiber insulation manufacturers worldwide at a glance
As of Sep 30, 2026Companies by employee count
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 cellulose fiber 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 cellulose fiber insulation manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cellulose fiber 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 cellulose fiber 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 cellulose fiber 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, 11,754 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.
Cellulose fiber insulation manufacturers by location
15 lists · largest firstEvery Cellulose fiber insulation manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cellulose fiber insulation manufacturers based in the United States407
- Cellulose fiber insulation manufacturers based in Italy114
- Cellulose fiber insulation manufacturers based in Türkiye112
- Cellulose fiber insulation manufacturers based in France104
- Cellulose fiber insulation manufacturers based in India101
- Cellulose fiber insulation manufacturers based in the United Kingdom100
- Cellulose fiber insulation manufacturers based in Germany95
- Cellulose fiber insulation manufacturers based in the Netherlands80
- Cellulose fiber insulation manufacturers based in Canada78
- Cellulose fiber insulation manufacturers based in Australia64
- Cellulose fiber insulation manufacturers based in Spain60
- Cellulose fiber insulation manufacturers based in Brazil52
- Cellulose fiber insulation manufacturers based in Belgium47
- Cellulose fiber insulation manufacturers based in Poland41
- Cellulose fiber insulation manufacturers based in Sweden25
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 cellulose fiber 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 cellulose fiber insulation manufacturers are there worldwide?
RevenueBase identified 2,289 cellulose fiber 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?
Rockwool Group, headquartered in Hedehusene, tops this list with the largest team on record.
Which country has the most cellulose fiber insulation manufacturers?
The United States leads with 407 companies, followed by Italy (114) and Türkiye (112). Every cellulose fiber insulation manufacturers list by country and city is linked on this page.
Which city has the most cellulose fiber insulation manufacturers?
Istanbul leads with 24 headquartered companies, followed by Ankara (9) and Houston (9).
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 11,754 verified decision-maker contacts tracked across these 2,289 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.