Company lists · Data refreshed September 2026

Top 25 Architectural aluminum extrusion companies based in Germany

Name: Architectural aluminum extrusion companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 436 companies tracked

RevenueBase identified 436 architectural aluminum extrusion companies headquartered in Germany as of September 2026 and tracks 3,755 professional contacts across them, including 1,165 with verified work emails. Berlin is the largest hub.

This list covers architectural aluminum extrusion companies 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 16, 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 16, 2026 86% judged on-target in blind review

436Companies

3,755Contacts tracked

1,165Verified emails

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The 25 largest architectural aluminum extrusion companies based in Germany

Ranked by team size

Top 25 of 436 architectural aluminum extrusion companies based in Germany, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to architectural aluminum extrusion companies: 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	SEELE	Partial evidence	Gersthofen, GermanyHQ checked Sep 16, 2026	501-1,000	333 contacts →
	Partial evidence “seele is one of the world’s top companies specialising in the design and construction of façades and complex building envelopes made from glass, steel, aluminium, membranes and…” Source: RevenueBase Database · checked Sep 16, 2026
2	Heroal	Partial evidence	Verl, GermanyHQ checked Sep 16, 2026	501-1,000	186 contacts →
	Partial evidence “As a manufacturer of aluminium system solutions for roller shutters, sun protection, roller doors, windows, doors, sliding doors, curtain walls and patio roofs, heroal is one of…” Source: RevenueBase Database · checked Sep 16, 2026
3	ST Extruded Products Group Step-G	Indirect evidence	Bonn, GermanyHQ checked Sep 16, 2026	501-1,000	158 contacts →
	Indirect evidence “Innovation, performance, transparency and continuity: these are the qualities that set ST Extruded Products Group, STEP-G for short, apart.” Source: RevenueBase Database · checked Sep 16, 2026
4	Kalzip	Indirect evidence	Koblenz, GermanyHQ checked Sep 16, 2026	501-1,000	116 contacts →
	Indirect evidence “Kalzip is the world-leading standing seam roofing and wall cladding system.” Source: RevenueBase Database · checked Sep 16, 2026
5	Riva Engineering	Indirect evidence	Backnang, GermanyHQ checked Sep 16, 2026	201-500	100 contacts →
	Indirect evidence “RIVA GmbH Engineering plans, designs and realizes high-quality façade-building projects and stands for cost-effective, transparent and reliable metal and glass structures.” Source: RevenueBase Database · checked Sep 16, 2026
6	Hueck System Gmbh & Co. KG	Partial evidence	Lüdenscheid, GermanyHQ checked Sep 16, 2026	201-500	89 contacts →
	Partial evidence “HUECK by Hydro ist ein Unternehmen der Hydro Building Systems und gehört zu den führenden Anbietern von Fenster, Türen- und Fassadensystemen aus Aluminium.” Source: RevenueBase Database · checked Sep 16, 2026
7	Dobler Metallbau Gmbh	Indirect evidence	München, GermanyHQ checked Sep 16, 2026	201-500	87 contacts →
	Indirect evidence “The Dobler Metallbau Group is an international company.” Source: RevenueBase Database · checked Sep 16, 2026
8	Raico Bautechnik Gmbh	Partial evidence	Pfaffenhausen, GermanyHQ checked Sep 16, 2026	51-200	84 contacts →
	Partial evidence “RAICO Bautechnik GmbH develops and distributes high-quality glazing systems for curtain walling, aluminium windows, and aluminium doors.” Source: RevenueBase Database · checked Sep 16, 2026
9	Wicona	Indirect evidence	Ulm, GermanyHQ checked Sep 16, 2026	501-1,000	82 contacts →
	Indirect evidence “WICONA by Hydro offers with over 70 years’ experience functional and energy-efficient façades, windows, door and sliding solutions with the highest quality and performance…” Source: RevenueBase Database · checked Sep 16, 2026
10	Gutmann Bausysteme Gmbh	Partial evidence	Weißenburg In Bayern, GermanyHQ checked Sep 16, 2026	201-500	57 contacts →
	Partial evidence “GUTMANN Bausysteme GmbH is an international supplier of system-based aluminium solutions for buildings.” Source: RevenueBase Database · checked Sep 16, 2026
11	Lindner Building Envelope	Indirect evidence	Arnstorf, GermanyHQ checked Sep 16, 2026	201-500	50 contacts →
	Indirect evidence “The Lindner Facade Group is your competent partner for the complete building envelope: Whether facades, roof constructions or free forms made of steel and glass – our…” Source: RevenueBase Database · checked Sep 16, 2026
12	Medicke	Indirect evidence	Glauchau, GermanyHQ checked Sep 16, 2026	201-500	49 contacts →
	Indirect evidence “Die Medicke GmbH mit Hauptsitz in Glauchau und Niederlassungen in Berlin, Borna, Hamburg und Leipzig beschäftigt 330 Mitarbeiter:innen.” Source: RevenueBase Database · checked Sep 16, 2026
13	FKN Group	Partial evidence	Neuenstein, GermanyHQ checked Sep 16, 2026	201-500	45 contacts →
	Partial evidence “At the FKN GROUP we strive to transform buildings into sophisticated architecture with our façades and thereby provide the buildings with an image and, in doing so, we develop…” Source: RevenueBase Database · checked Sep 16, 2026
14	Ventana Deutschland Gmbh & Co. KG	Indirect evidence	Vreden, GermanyHQ checked Sep 16, 2026	201-500	44 contacts →
	Indirect evidence “As part of the Ventana Group, we are the world's leading specialist in the manufacturing of innovative shapes for vinyl windows and doors.” Source: RevenueBase Database · checked Sep 16, 2026
15	Feldhaus Fenster Fassaden Gmbh & Co. KG	Indirect evidence	Emsdetten, GermanyHQ checked Sep 16, 2026	201-500	43 contacts →
	Indirect evidence “FELDHAUS Fenster + Fassaden GmbH & Co.” Source: RevenueBase Database · checked Sep 16, 2026
16	Groke Türen Gmbh	Indirect evidence	Hagenbach, GermanyHQ checked Sep 16, 2026	51-200	40 contacts →
	Indirect evidence “Die Groke Türen GmbH in Hagenbach blickt bereits auf eine über 125-jährige Erfolgsgeschichte im Metallbau zurück.” Source: RevenueBase Database · checked Sep 16, 2026
17	Gebrüder Schneider Fensterfabrik Gmbh & Co.Kg	Indirect evidence	Stimpfach, GermanyHQ checked Sep 16, 2026	201-500	40 contacts →
	Indirect evidence “THE FACADE COMPANY - Wir als Gebrüder Schneider Fensterfabrik GmbH & Co.” Source: RevenueBase Database · checked Sep 16, 2026
18	Gayko Fenster-Türenwerk Gmbh	Indirect evidence	Wilnsdorf, GermanyHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence “GAYKO Fenster-Türenwerk GmbH is a successful and innovative, constantly growing company that offers unique solutions for builders, renovators and architects.” Source: RevenueBase Database · checked Sep 16, 2026
19	Mejo Metall Josten Gmbh & Co. KG	Partial evidence	Düsseldorf, GermanyHQ checked Sep 16, 2026	51-200	35 contacts →
	Partial evidence “Die mejo Metall Josten Aluminium GmbH & Co.” Source: RevenueBase Database · checked Sep 16, 2026
20	Haga Metallbau Gmbh	Indirect evidence	Hofheim, GermanyHQ checked Sep 16, 2026	201-500	31 contacts →
	Indirect evidence “HAGA ist ein Handwerksunternehmen, das handwerkliches Know-how mit modernster Maschinentechnik und industrieller Prozessqualität verbindet.” Source: RevenueBase Database · checked Sep 16, 2026
21	Erbslöh Aluminium Gmbh	Indirect evidence	Velbert, GermanyHQ checked Sep 16, 2026	201-500	31 contacts →
	Indirect evidence “Gebündeltes Know-how - von der Entwicklung bis zum Vertrieb Für die gesamte Bandbreite der Automobiltechnik sowie moderner Industrieanwendungen entwickeln und produzieren wir…” Source: RevenueBase Database · checked Sep 16, 2026
22	ALU Group International	Partial evidence	Hamburg, GermanyHQ checked Sep 16, 2026	51-200	30 contacts →
	Partial evidence “For more than 35 years, Alu Group and its subsidiaries have been providing high end aluminum building solutions to residential and commercial clients around the Globe.” Source: RevenueBase Database · checked Sep 16, 2026
23	Schrag Kantprofile Gmbh	Indirect evidence	Hilchenbach, GermanyHQ checked Sep 16, 2026	501-1,000	28 contacts →
	Indirect evidence “Kantprofile mit Tradition In ganz Europa vertrauen Kunden beim Thema auf SCHRAG\|Kantprofile.” Source: RevenueBase Database · checked Sep 16, 2026
24	Aluminiumwerk Unna AG	Partial evidence	Unna, GermanyHQ checked Sep 16, 2026	201-500	27 contacts →
	Partial evidence “The Aluminiumwerk Unna AG is one of the world leading manufacturers of Aluminum tubes and seamless hollows.” Source: RevenueBase Database · checked Sep 16, 2026
25	Akotherm Gmbh	Partial evidence	Bendorf, GermanyHQ checked Sep 16, 2026	51-200	26 contacts →
	Partial evidence “AKOTHERM® GmbH has been established as an innovative system supplier for aluminum windows, doors, and facades on the German market and abroad for over 50 years.” Source: RevenueBase Database · checked Sep 16, 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: architectural aluminum extrusion companies. 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 architectural aluminum extrusion companies.
Partial evidence: Its own public description names part of architectural aluminum extrusion companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architectural aluminum extrusion companies. 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 436 architectural aluminum extrusion companies based in Germany

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Architectural aluminum extrusion companies based in Germany at a glance

As of Sep 16, 2026

31.0%Verified-email coverage

8.6Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · Berlin

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

192

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 436 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 architectural aluminum extrusion companies, 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 “architectural aluminum extrusion companies”. 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 architectural aluminum extrusion companies), 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 architectural aluminum extrusion companies, 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, 1,165 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 16, 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 architectural aluminum extrusion companies, 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 architectural aluminum extrusion companies are there based in Germany?

RevenueBase identified 436 architectural aluminum extrusion companies 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?

SEELE, headquartered in Gersthofen, tops this list with the largest team on record.

Which city has the most architectural aluminum extrusion companies?

Berlin leads with 12 headquartered companies, followed by Monchengladbach (6) and Dortmund (5).

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 1,165 verified decision-maker contacts tracked across these 436 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 16, 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.