Company lists · Data refreshed September 2026

Top 25 Extruded polystyrene manufacturers based in Germany

Name: Extruded polystyrene 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 122 companies tracked

RevenueBase identified 122 extruded polystyrene manufacturers headquartered in Germany as of September 2026 and tracks 5,509 professional contacts across them, including 1,893 with verified work emails. Berlin is the largest hub.

This list covers extruded polystyrene 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

122Companies

5,509Contacts tracked

1,893Verified emails

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The 25 largest extruded polystyrene manufacturers based in Germany

Ranked by team size

Top 25 of 122 extruded polystyrene 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 extruded polystyrene 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	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
4	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
5	Trocellen Group	Indirect evidence	Troisdorf, GermanyHQ checked Sep 30, 2026	501-1,000	90 contacts →
	Indirect evidence “Trocellen is the European polyolefin foam solution provider for people’s safety and comfort.” Source: RevenueBase Database · checked Sep 30, 2026
6	Jackon Insulation By Bewi	Strong evidence	Arendsee (mechau), GermanyHQ checked Sep 30, 2026	201-500	58 contacts →
	Strong evidence “About JACKON Insulation by BEWI Manufacturer of high-quality insulation and construction boards made of rigid extruded polystyrene foam (XPS), JACKON, Insulation GmbH has been…” Source: RevenueBase Database · checked Sep 30, 2026
7	Kingspan Insulated Panels Germany, Austria & Switzerland	Indirect evidence	Wesel, GermanyHQ checked Sep 30, 2026	201-500	47 contacts →
	Indirect evidence “Mit zukunftsweisenden Ideen und kreativer Innovationskraft ist Kingspan weltweit führender Anbieter von isolierenden Dach- und Wandelementen.” 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	Puren Gmbh	Indirect evidence	Überlingen, GermanyHQ checked Sep 30, 2026	201-500	36 contacts →
	Indirect evidence “puren, based in Überlingen on Lake Constance, is in business for over 50 years, making the medium-sized, internationally active group of companies with over 300 employees and its…” Source: RevenueBase Database · checked Sep 30, 2026
10	Ruch Novaplast Gmbh Co. KG	Partial evidence	Oberkirch, GermanyHQ checked Sep 30, 2026	201-500	35 contacts →
	Partial evidence “RUCH NOVAPLAST is your specialist in developing and producing solutions made of expanded polystyrene (EPS) and expanded polypropylene (EPP).” 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	Isowa Gmbh	Indirect evidence	Freudenberg, GermanyHQ checked Sep 30, 2026	51-200	20 contacts →
	Indirect evidence “ISOWA Schaumkunststoffe.” Source: RevenueBase Database · checked Sep 30, 2026
13	Metecno Bausysteme Gmbh	Indirect evidence	Blankenhain, GermanyHQ checked Sep 30, 2026	51-200	16 contacts →
	Indirect evidence “More than five decades ago, Metecno-group established a new way of building with the automated and continuous production of insulated wall and roof panels with external steel…” Source: RevenueBase Database · checked Sep 30, 2026
14	Bewi RAW Gmbh	Indirect evidence	Wismar, GermanyHQ checked Sep 30, 2026	51-200	16 contacts →
	Indirect evidence “BEWI RAW GmbH - a part of the BEWI Group, was founded in Wismar, Germany, and commissioned its first capacity in 2001.” Source: RevenueBase Database · checked Sep 30, 2026
15	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
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	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
18	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
19	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
20	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
21	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
22	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
23	Lippstädter Hartschaumverarbeitung Gmbh	Indirect evidence	Lippstadt, GermanyHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “EPS Expandierter Polystyrol-Hartschaum ist ein Stoff, der in nahezu jedem Lebensbereich Verwendung findet.” Source: RevenueBase Database · checked Sep 30, 2026
24	Eich Isoliertechnik Gmbh	Indirect evidence	Lübbecke, GermanyHQ checked Sep 30, 2026	11-50	8 contacts →
	Indirect evidence “Eich Isoliertechnik GmbH is a construction company based out of 30 -32 Daimlerstraße, Lübbecke, Germany.” Source: RevenueBase Database · checked Sep 30, 2026
25	Bowcraft Gmbh	Indirect evidence	Mannheim, GermanyHQ checked Sep 30, 2026	11-50	7 contacts →
	Indirect evidence “Our core expertise includes, in addition to the development and marketing of high-quality, innovative and unique products in the area of insulation and damping, the provision of…” 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: extruded polystyrene 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 extruded polystyrene manufacturers.
Partial evidence: Its own public description names part of extruded polystyrene manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name extruded polystyrene 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 122 extruded polystyrene manufacturers based in Germany

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Extruded polystyrene manufacturers based in Germany at a glance

As of Sep 30, 2026

34.4%Verified-email coverage

45.2Average contacts per company

11-50Median size (employees)

3.3%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 122 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 extruded polystyrene 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 “extruded polystyrene 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 extruded polystyrene 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 extruded polystyrene 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, 1,893 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 extruded polystyrene 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 extruded polystyrene manufacturers are there based in Germany?

RevenueBase identified 122 extruded polystyrene 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 extruded polystyrene 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 1,893 verified decision-maker contacts tracked across these 122 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.