Company lists · Data refreshed September 2026

Top 25 Insulation manufacturers based in France

Name: Insulation manufacturers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 954 companies tracked

RevenueBase identified 954 insulation manufacturers headquartered in France as of September 2026 and tracks 12,307 professional contacts across them, including 3,331 with verified work emails. Paris is the largest hub.

This list covers insulation manufacturers headquartered in France, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

954Companies

12,307Contacts tracked

3,331Verified emails

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The 25 largest insulation manufacturers based in France

Ranked by team size

Top 25 of 954 insulation manufacturers based in France, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to 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	Calderys	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	1,001-5,000	1,724 contacts →
	Indirect evidence “Calderys is a leading global provider for industries operating in high-temperature conditions.” Source: RevenueBase Database · checked Sep 17, 2026
2	Kaefer France	Indirect evidence	Courbevoie, FranceHQ checked Sep 17, 2026	1,001-5,000	671 contacts →
	Indirect evidence “KAEFER WANNER, leader français de l’isolation industrielle, est un partenaire très demandé en Isolation Thermique Industrielle et Nucléaire, Echafaudage, Désamiantage, Protection…” Source: RevenueBase Database · checked Sep 17, 2026
3	Lariviere	Indirect evidence	Angers, FranceHQ checked Sep 17, 2026	501-1,000	511 contacts →
	Indirect evidence “Leader de la distribution de matériaux de couverture, LARIVIERE propose une offre complète de plus de 30 références : couverture ardoise et tuile / couverture et charpente bois /…” Source: RevenueBase Database · checked Sep 17, 2026
4	Queguiner Materiaux	Indirect evidence	Landivisiau, FranceHQ checked Sep 17, 2026	501-1,000	280 contacts →
	Indirect evidence “Queguiner Materiaux is a matériaux de construction company based out of 45Rue Georges Clemenceau, Landivisiau, Brittany, France.” Source: RevenueBase Database · checked Sep 17, 2026
5	Rockwool France	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	501-1,000	255 contacts →
	Indirect evidence “Nous révélons les bienfaits de la roche, ressource naturelle abondante pour relever les enjeux planétaires.” Source: RevenueBase Database · checked Sep 17, 2026
6	Thévenin Officiel	Indirect evidence	Saint Cyr En Val, FranceHQ checked Sep 17, 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 17, 2026
7	Litt Diffusion SAS	Indirect evidence	Malakoff, FranceHQ checked Sep 17, 2026	201-500	226 contacts →
	Indirect evidence “Depuis près de 40 ans, LiTT est en France, le distributeur spécialiste de l’aménagement intérieur et de l’isolation.” Source: RevenueBase Database · checked Sep 17, 2026
8	Sediver	Partial evidence	Courbevoie, FranceHQ checked Sep 17, 2026	501-1,000	212 contacts →
	Partial evidence “For 75 years Sediver has specialized in overhead line insulation technology - research, design, manufacturing, testing and supply of insulators for AC and DC applications designed…” Source: RevenueBase Database · checked Sep 17, 2026
9	Eurocombles By Opnr	Indirect evidence	Solaize, FranceHQ checked Sep 17, 2026	n/a	198 contacts →
	Indirect evidence “Eurocombles, isoler vos combles, garages et caves à seulement 1€!” Source: RevenueBase Database · checked Sep 17, 2026
10	Knauf France	Indirect evidence	FranceHQ checked Sep 17, 2026	501-1,000	191 contacts →
	Indirect evidence “Knauf France réunit au même endroit les savoir-faire et expertises du Groupe Knauf en France, l’un des leaders mondiaux de la fabrication de matériaux et de systèmes pour la…” Source: RevenueBase Database · checked Sep 17, 2026
11	Dagard	Partial evidence	Boussac, FranceHQ checked Sep 17, 2026	201-500	185 contacts →
	Partial evidence “Manufacturer of innovative solutions since 1951 and leading French manufacturer of modular panels, DAGARD produces, distributes, and installs a wide range of modular cold rooms…” Source: RevenueBase Database · checked Sep 17, 2026
12	Thermocoax	Indirect evidence	Caligny, FranceHQ checked Sep 17, 2026	201-500	172 contacts →
	Indirect evidence “Thermocoax, part of Spirax Group, is built on nearly 70 years of proven expertise in our core technologies (including Mineral Insulated cable) and design of thermal solutions for…” Source: RevenueBase Database · checked Sep 17, 2026
13	Actis Isolation	Indirect evidence	Limoux, FranceHQ checked Sep 17, 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 17, 2026
14	Sofradi	Indirect evidence	Treillières, FranceHQ checked Sep 17, 2026	201-500	155 contacts →
	Indirect evidence “Installée sur 30 dans l’agglomération nantaise, SOFRADI, SOciété FRAnçaise D’Isolation s’impose depuis 1977 sur le marché de l’isolation.” Source: RevenueBase Database · checked Sep 17, 2026
15	SIEMO	Indirect evidence	Lillebonne, FranceHQ checked Sep 17, 2026	201-500	145 contacts →
	Indirect evidence “Depuis 1990, Siemo est une PME spécialisée dans les métiers de l’isolation, de l’échafaudage et de l’ignifugeage.” Source: RevenueBase Database · checked Sep 17, 2026
16	Aris Services	Indirect evidence	Épouville, FranceHQ checked Sep 17, 2026	501-1,000	108 contacts →
	Indirect evidence “ARIS, anciennement Evers Isolation créée en 1992, est spécialisée en isolation thermique, échafaudage et désamiantage.” Source: RevenueBase Database · checked Sep 17, 2026
17	Groupe Isore	Indirect evidence	Nantes - Angers -rennes - Vannes - Lille - Paris - Evreux - Le Mans, FranceHQ checked Sep 17, 2026	51-200	102 contacts →
	Indirect evidence “Spécialistes éco-responsables et engagés de l'enveloppe du bâtiment, le groupe ISORE réalise les travaux d'isolation thermique extérieure (ITE) des façades des bâtiments à haute…” Source: RevenueBase Database · checked Sep 17, 2026
18	Isocab By Kingspan	Indirect evidence	Grande Synthe, FranceHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “Isocab has nearly 50 years of success in the insulated sandwich panel industry.” Source: RevenueBase Database · checked Sep 17, 2026
19	AXTER	Indirect evidence	Courchelettes, FranceHQ checked Sep 17, 2026	201-500	78 contacts →
	Indirect evidence “AXTER, marque de distribution d’IKO-AXTER, s’impose comme un acteur clé auprès des négoces spécialistes, multi-spécialistes et généralistes.” Source: RevenueBase Database · checked Sep 17, 2026
20	Baumit France	Indirect evidence	Vaires-sur-marne, FranceHQ checked Sep 17, 2026	201-500	54 contacts →
	Indirect evidence “Baumit, fabricant autrichien de matériaux dédiés à l’Isolation Thermique par l’Extérieur sous enduits ITE, propose de nombreuses solutions techniques.” Source: RevenueBase Database · checked Sep 17, 2026
21	Tramico	Indirect evidence	Gournay-en-bray, FranceHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “1,8 Billion €” Source: RevenueBase Database · checked Sep 17, 2026
22	Roofmart France	Indirect evidence	Tourville La Riviere, FranceHQ checked Sep 17, 2026	51-200	50 contacts →
	Indirect evidence “Roofmart est un distributeur hyperspécialisé en toiture, étanchéité et bardage.” Source: RevenueBase Database · checked Sep 17, 2026
23	Daussan	Partial evidence	Woippy, FranceHQ checked Sep 17, 2026	51-200	41 contacts →
	Partial evidence “Since its founding in 1936, DAUSSAN has steadily strengthened its place as leader in appraisals, consulting, research, and the manufacture of specialized high-temperature products…” Source: RevenueBase Database · checked Sep 17, 2026
24	Societe Alpine D'isolation Thermique	Indirect evidence	Bresson, FranceHQ checked Sep 17, 2026	201-500	38 contacts →
	Indirect evidence “SAIT : CA 22€ / 250 pers MASE CEFRI QUALIBAT UTO UTO 1413 Echafaudages (Technicité Supérieure) 7112 Calorifuge (Technicité Confirmée) Certificat Economie Energie mise en place de…” Source: RevenueBase Database · checked Sep 17, 2026
25	Steico France	Indirect evidence	Brumath, FranceHQ checked Sep 17, 2026	1,001-5,000	37 contacts →
	Indirect evidence “Le Groupe STEICO – Fabricant d'isolants et de matériaux de construction écologiques STEICO SE est une entreprise présente à l’échelle européenne qui compte 1300 salariés.” Source: RevenueBase Database · checked Sep 17, 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: 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 insulation manufacturers.
Partial evidence: Its own public description names part of insulation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 954 insulation manufacturers based in France

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Insulation manufacturers based in France at a glance

As of Sep 17, 2026

27.1%Verified-email coverage

12.9Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Paris

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

464

11-50

362

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 954 companies.

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 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.
What qualifies: Companies headquartered in France whose own description of what they do matches “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 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 insulation manufacturers, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
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, 3,331 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 17, 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.

Insulation manufacturers by metro

Insulation manufacturers in Paris28

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 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 insulation manufacturers are there based in France?

RevenueBase identified 954 insulation manufacturers headquartered in France 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?

Calderys, headquartered in Paris, tops this list with the largest team on record.

Which city has the most insulation manufacturers?

Paris leads with 28 headquartered companies, followed by Lyon (12) and Toulouse (8).

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 3,331 verified decision-maker contacts tracked across these 954 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 17, 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.