Company lists · Data refreshed September 2026

Top 25 Glass wool manufacturers based in Germany

Name: Glass wool manufacturers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 117 companies tracked

RevenueBase identified 117 glass wool manufacturers headquartered in Germany as of September 2026 and tracks 5,587 professional contacts across them, including 1,916 with verified work emails. Berlin is the largest hub.

This list covers glass wool manufacturers headquartered in Germany, 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.

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

117Companies

5,587Contacts tracked

1,916Verified emails

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The 25 largest glass wool manufacturers based in Germany

Ranked by team size

Top 25 of 117 glass wool manufacturers based in Germany, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to glass wool 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	Wego Systembaustoffe Gmbh	Indirect evidence	Hanau-steinheim, GermanyHQ checked Sep 30, 2026	1,001-5,000	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, 2026
3	Tmax Group	Partial evidence	Mannheim, GermanyHQ checked Sep 30, 2026	1,001-5,000	157 contacts →
	Partial evidence “We are a world-leading manufacturer of high-temperature insulation tmax is the specialist in the design and manufacture of thermal and acoustic insulation systems for all…” Source: RevenueBase Database · checked Sep 30, 2026
4	Deutsche Rockwool Gmbh & Co. KG	Indirect evidence	Gladbeck, GermanyHQ checked Sep 30, 2026	1,001-5,000	118 contacts →
	Indirect evidence “Die DEUTSCHE ROCKWOOL bietet Dämmlösungen aus nichtbrennbarer Steinwolle für die Dämmung von Gebäudehülle, Innenausbau und Gebäudetechnik an.” Source: RevenueBase Database · checked Sep 30, 2026
5	Saint-Gobain Isover G H AG	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 30, 2026	1,001-5,000	103 contacts →
	Indirect evidence “ISOVER.” Source: RevenueBase Database · checked Sep 30, 2026
6	Arnold Group	Indirect evidence	Aichtal, GermanyHQ checked Sep 30, 2026	201-500	54 contacts →
	Indirect evidence “ARNOLD Group is your competent partner for innovative insulation systems and mechanical service solutions for industrial production facilities.” Source: RevenueBase Database · checked Sep 30, 2026
7	Happich Gmbh	Indirect evidence	Wuppertal, GermanyHQ checked Sep 30, 2026	501-1,000	47 contacts →
	Indirect evidence “HAPPICH GmbH From Wuppertal to the whole world Since 1924 we - HAPPICH GmbH - have stood for high quality awareness, tradition, innovation and globality.” Source: RevenueBase Database · checked Sep 30, 2026
8	Heck Wall Systems Gmbh	Indirect evidence	Marktredwitz, GermanyHQ checked Sep 30, 2026	51-200	44 contacts →
	Indirect evidence “HECK Wall Systems, mit Sitz in Marktredwitz, zählt mit den zwei starken Marken Rajasil und HECK zu den führenden Herstellern von Spezialbaustoffen für Bausanierung und…” Source: RevenueBase Database · checked Sep 30, 2026
9	Cellofoam International Gmbh & Co. KG	Indirect evidence	Biberach, GermanyHQ checked Sep 30, 2026	51-200	39 contacts →
	Indirect evidence “Cellofoam is a leading specialist in the area of sound insulation and sound attenuation products as well as seals and gaskets for industrial and technical applications.” Source: RevenueBase Database · checked Sep 30, 2026
10	Isopartner Deutschland Gmbh & Co. KG	Indirect evidence	Baiersdorf, GermanyHQ checked Sep 30, 2026	51-200	36 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 30, 2026
11	Bohle Isoliertechnik Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 30, 2026	51-200	24 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
12	Culimeta Textilglas-Technologie Gmbh & Co. KG	Indirect evidence	Bersenbrück, GermanyHQ checked Sep 30, 2026	201-500	20 contacts →
	Indirect evidence “n Germany Culimeta is represented with two plants: Our plant in Bersenbrück employs more than 70 people, has a production area of approximately 4,500 m², as well as…” Source: RevenueBase Database · checked Sep 30, 2026
13	Kuvag Isola Composites Gmbh	Indirect evidence	Düren, GermanyHQ checked Sep 30, 2026	51-200	17 contacts →
	Indirect evidence “KUVAG - Leading in Insulation Technology” Source: RevenueBase Database · checked Sep 30, 2026
14	Owens Corning Foamglas D-A-Ch	Indirect evidence	Hilden, GermanyHQ checked Sep 30, 2026	201-500	16 contacts →
	Indirect evidence “FOAMGLAS® ist Teil von Owens Corning, das weltweit in den Bereichen Dämmstoffe, Dacheindeckung, Abdichtung und Fiberglas-Verbundwerkstoffen tätig ist.” Source: RevenueBase Database · checked Sep 30, 2026
15	X-Floc Dämmtechnik-Maschinen Gmbh	Indirect evidence	Renningen, GermanyHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “X-Floc Dämmtechnik-Maschinen GmbH ist ein führendes Unternehmen in der Entwicklung und Herstellung von leistungsstarken Maschinen und Geräten zur professionellen Verarbeitung von…” Source: RevenueBase Database · checked Sep 30, 2026
16	Plastocell Kunststoff Gmbh	Indirect evidence	Schifferstadt, GermanyHQ checked Sep 30, 2026	51-200	13 contacts →
	Indirect evidence “ö ä Ob in Bus, Bahn, Schiff oder als Dämmung von gesamten Gebäudekomplexen: Schall, Wärme und Kälteschutzlösungen von PLASTOCELL – einem Verbundunternehmen der HÜBNER-Gruppe –…” Source: RevenueBase Database · checked Sep 30, 2026
17	Wkt-Letsch Produktions- UND Handels Gmbh	Indirect evidence	Hanau, GermanyHQ checked Sep 30, 2026	51-200	13 contacts →
	Indirect evidence “WKT ist Ihr Partner für maßgeschneiderte und kundenorientierte Dämmstofflösungen für Wärme- und Schalldämmung!” Source: RevenueBase Database · checked Sep 30, 2026
18	B M Isol Gmbh	Indirect evidence	Viernheim, GermanyHQ checked Sep 30, 2026	51-200	13 contacts →
	Indirect evidence “B+M isol ist Dein Profi-Fachhandel für Technische Isolierungen in der Haus, Industrie- und Prozesstechnik.” Source: RevenueBase Database · checked Sep 30, 2026
19	Climowool Gmbh	Indirect evidence	Bernburg, GermanyHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “Die climowool GmbH ist ein Unternehmen der Knauf Gruppe.” Source: RevenueBase Database · checked Sep 30, 2026
20	Techno Physik Group	Indirect evidence	Essen, GermanyHQ checked Sep 30, 2026	51-200	12 contacts →
	Indirect evidence “Die TechnoPhysik Group ist mit drei Unternehmen an vier Standorten Hersteller und Anbieter innovativer Brandschutz- und Wärmedämmlösungen im Industrie- und Privatbereich.” Source: RevenueBase Database · checked Sep 30, 2026
21	Philippine Gmbh & Co. Dämmstoffsysteme KG	Indirect evidence	Castrop-rauxel, GermanyHQ checked Sep 30, 2026	51-200	11 contacts →
	Indirect evidence “Wir sind ein dynamisches und auf Wachstum ausgerichtetes mittelständisches Unternehmen im Zukunftsmarkt der Dämmstoffe.” Source: RevenueBase Database · checked Sep 30, 2026
22	GWK Kuhlmann Gmbh	Indirect evidence	Salzkotten, GermanyHQ checked Sep 30, 2026	51-200	11 contacts →
	Indirect evidence “Seit Gründung des Unternehmens im Jahre 1987 steht die GWK Kuhlmann als Ansprechpartner für Dämmsysteme im Bereich Wärme und Klimatechnik.” Source: RevenueBase Database · checked Sep 30, 2026
23	Lahnau Akustik Gmbh	Indirect evidence	Lahnau, GermanyHQ checked Sep 30, 2026	11-50	11 contacts →
	Indirect evidence “Lahnau Akustik wurde am Standort der ehemaligen Wilhelmi Werke AG, in Lahnau, im Januar 2006 gegründet.” Source: RevenueBase Database · checked Sep 30, 2026
24	Austrotherm Deutschland	Indirect evidence	Wittenberge, GermanyHQ checked Sep 30, 2026	51-200	10 contacts →
	Indirect evidence “Austrotherm ist der Spezialist für klimaschützende, zukunftsorientierte und energiesparende Wärmedämmung vom Keller bis zum Dach.” Source: RevenueBase Database · checked Sep 30, 2026
25	Unterweger Isolierungen Gmbh	Indirect evidence	Bad Reichenhall, GermanyHQ checked Sep 30, 2026	11-50	10 contacts →
	Indirect evidence “Unterweger Isolierungen GmbH is a construction company based out of 17 Gewerkenstraße, Bad Reichenhall, Bavaria, Germany.” 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: glass wool 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 glass wool manufacturers.
Partial evidence: Its own public description names part of glass wool manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name glass wool 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 117 glass wool manufacturers based in Germany

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Glass wool manufacturers based in Germany at a glance

As of Sep 30, 2026

34.3%Verified-email coverage

47.8Average contacts per company

11-50Median size (employees)

3.4%Largest-city concentration · Berlin

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 117 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 glass wool 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 Germany whose own description of what they do matches “glass wool 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 glass wool 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 glass wool manufacturers, and records with no verified work email. Companies headquartered outside Germany 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, 1,916 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.

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 glass wool 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 glass wool manufacturers are there based in Germany?

RevenueBase identified 117 glass wool manufacturers headquartered in Germany 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 city has the most glass wool manufacturers?

Berlin leads with 4 headquartered companies, followed by Dusseldorf (3) and Hamburg (3).

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 1,916 verified decision-maker contacts tracked across these 117 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.