Company lists · Data refreshed September 2026
Top 25 Skylights and window companies based in Germany
RevenueBase identified 715 skylights and window companies headquartered in Germany as of September 2026 and tracks 3,380 professional contacts across them, including 877 with verified work emails. Berlin is the largest hub.
This list covers skylights and window 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 22, 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.
The 25 largest skylights and window companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 381 contacts → | ||||
Indirect evidence “VELUX Commercial is a division in the VELUX Group, offering daylight and ventilation solutions for industrial, commercial, and public buildings.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 202 contacts → | ||||
Partial evidence “Salamander Industrie-Produkte GmbH and its brand Salamander Window & Door Systems with headquarters in Türkheim/Unterallgäu is one of the leading European quality providers for…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 192 contacts → | ||||
Indirect evidence “Roto Frank Dachsystem-Technologie ist eine von drei Divisionen der Roto Frank Holding AG.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 180 contacts → | ||||
Indirect evidence “Das niedersächsische Familienunternehmen aus Bissendorf bei Osnabrück hat sich in fast 30 Jahren national und international einen Namen gemacht.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 148 contacts → | ||||
Indirect evidence “HEIM & HAUS ist das führende Direktvertriebsunternehmen im Markt der Bauelemente.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 89 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 61 contacts → | ||||
Indirect evidence “Beck+Heun ist Entwickler, Hersteller und Verarbeiter von energetisch hocheffizienten Systemen rund um das Fenster.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 50 contacts → | ||||
Partial evidence “Over 45 years of experience have made us one of the world's leading manufacturers of windows automation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 33 contacts → | ||||
Indirect evidence “Wigger Fenster + Fassaden Persönlich.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 31 contacts → | ||||
Indirect evidence “HAGA ist ein Handwerksunternehmen, das handwerkliches Know-how mit modernster Maschinentechnik und industrieller Prozessqualität verbindet.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 30 contacts → | ||||
Indirect evidence “NATURAL DAYLIGHT AND SMOKE EXTRACTION SYSTEMS Lighting, ventilation, smoke extraction and drainage – with us, you can find the complete product range all under one roof.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 26 contacts → | ||||
Indirect evidence “Aus der im Jahre 1939 von Rupert App in Leutkirch gegründeten Schlosserei entwickelte sich ein leistungsfähiges Handwerksunternehmen mit drei modernen Fertigungsbetrieben.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 contacts → | ||||
Indirect evidence “We bring the most challenging projects to life for architects, general contractors, and building owners worldwide-from free-form geometry to classic standing-seam roofs.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 24 contacts → | ||||
Indirect evidence “Mit über 500 Mitarbeitenden und hochwertigen Produkten zählt die PaX-Gruppe zu den führenden Herstellern von Fenstern und Türen in Deutschland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 contacts → | ||||
Indirect evidence “roda Licht- und Lufttechnik GmbH specializes in the natural ventilation and illumination of industrial halls and public buildings such as schools, administrative buildings…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 21 contacts → | ||||
Indirect evidence “Wir sind immer da, wo Zuhause entsteht.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 19 contacts → | ||||
Indirect evidence “Biffar ist der führende Hersteller von Haustüren, Wohnungseingangstüren, Fenstern und Vordächern mit Sitz in Deutschland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 17 contacts → | ||||
Indirect evidence “Als Spezialist für professionelle Glas- und Stahlkonstruktionen, sind wir heute ein bekanntes Unternehmen mit Sitz in Neu-Ulm, Süddeutschland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 16 contacts → | ||||
Indirect evidence “Seit 1947 besteht unser Unternehmen am Standort Heidelberg.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Indirect evidence “BLECHER - Fenster und Türen mit Charakter.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 15 contacts → | ||||
Indirect evidence “Den Grundstein für die IDEAL Fensterbau Weinstock GmbH legte Ludwig Weinstock 1990 mit dem Kauf einer Holzfensterproduktion in Traben-Trarbach.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 15 contacts → | ||||
Indirect evidence “Hans Timm Fensterbau ist ein mittelständisches Berliner Familienunternehmen in dritter Generation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Indirect evidence “Die Unternehmensgruppe Lumon aus Finnland spezialisiert sich seit über 40 Jahren auf die Fertigung, Vermarktung und Montage von Balkon- und Terrassenverglasungen.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 13 contacts → | ||||
Indirect evidence “Unser Unternehmen hat sich erfolgreich auf die Produktion von Fenstern, Türen, Wintergärten, Fassaden und Sonderkonstruktionen spezialisiert.” Source: RevenueBase Database · checked Sep 22, 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: skylights and window 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 skylights and window companies.
- Partial evidence
- Its own public description names part of skylights and window companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name skylights and window 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 715 skylights and window companies based in Germany
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Skylights and window companies based in Germany at a glance
As of Sep 22, 2026Companies by employee count
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 715 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 skylights and window 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 “skylights and window 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 skylights and window 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 skylights and window 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, 877 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 22, 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 skylights and window 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 skylights and window companies are there based in Germany?
RevenueBase identified 715 skylights and window 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?
Velux Commercial, headquartered in Hullhorst, tops this list with the largest team on record.
Which city has the most skylights and window companies?
Berlin leads with 14 headquartered companies, followed by Dortmund (5) and Hannover (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 877 verified decision-maker contacts tracked across these 715 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 22, 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.
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