Company lists · Data refreshed September 2026
Top 25 Custom window builders based in Germany
RevenueBase identified 1,073 company matches for custom window builders associated with Germany as of September 2026 and tracks 4,561 professional contacts across them, including 1,195 with verified work emails. Berlin is the largest hub.
This list covers company matches for custom window builders associated with Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 custom window builders based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 202 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 192 contacts → | ||||
Exact match “The name Roto is known throughout the world for innovative, individual and secure fitting systems that increase the added value of windows and doors for people.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 180 contacts → | ||||
Exact match “Das niedersächsische Familienunternehmen aus Bissendorf bei Osnabrück hat sich in fast 30 Jahren national und international einen Namen gemacht.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 148 contacts → | ||||
Exact match “HEIM & HAUS ist das führende Direktvertriebsunternehmen im Markt der Bauelemente.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 89 contacts → | ||||
Exact match “HUECK by Hydro ist ein Unternehmen der Hydro Building Systems und gehört zu den führenden Anbietern von Fenster, Türen- und Fassadensystemen aus Aluminium.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 82 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 61 contacts → | ||||
Exact match “Beck+Heun ist Entwickler, Hersteller und Verarbeiter von energetisch hocheffizienten Systemen rund um das Fenster.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 57 contacts → | ||||
Exact match “GUTMANN Bausysteme GmbH is an international supplier of system-based aluminium solutions for buildings.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 49 contacts → | ||||
Exact match “Die Medicke GmbH mit Hauptsitz in Glauchau und Niederlassungen in Berlin, Borna, Hamburg und Leipzig beschäftigt 330 Mitarbeiter:innen.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 49 contacts → | ||||
Exact match “HAUTAU ist einer der weltweit führenden Spezialisten für Schiebetechnik und Automation rund um das Fenster.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 47 contacts → | ||||
Exact match “Die Unilux GmbH ist ein mittelständiges und eigenständiges Unternehmen mit über 300 Mitarbeitern am Standort Salmtal.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 46 contacts → | ||||
Exact match “Fondée en 1924 et située à la frontière franco-allemande, LAKAL bénéficie d’une double culture dont les bénéfices rayonnent sur l’ensemble de l’entreprise.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 44 contacts → | ||||
Exact match “As part of the Ventana Group, we are the world's leading specialist in the manufacturing of innovative shapes for vinyl windows and doors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 43 contacts → | ||||
Exact match “FELDHAUS Fenster + Fassaden GmbH & Co.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 40 contacts → | ||||
Exact match “THE FACADE COMPANY - Wir als Gebrüder Schneider Fensterfabrik GmbH & Co.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 36 contacts → | ||||
Exact match “GAYKO Fenster-Türenwerk GmbH is a successful and innovative, constantly growing company that offers unique solutions for builders, renovators and architects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 34 contacts → | ||||
Exact match “Fenster und Haustüren aus Kunststoff und aus Aluminium Qualität und Service der Größenordnung XXL Energieeffizient - Sicher - Barrierefrei XXL ist dabei keine kurzlebige…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 33 contacts → | ||||
Exact match “Wigger Fenster + Fassaden Persönlich.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 31 contacts → | ||||
Exact match “Für jede Anpassung die maßgeschneiderte Lösung - Ob Einzelmaschine oder komplettes Automatisierungssystem, aufstrebender Fensterbaubetrieb oder großes Unternehmen – wir sind der…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 31 contacts → | ||||
Exact match “HAGA ist ein Handwerksunternehmen, das handwerkliches Know-how mit modernster Maschinentechnik und industrieller Prozessqualität verbindet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 30 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 28 contacts → | ||||
Exact match “Wer sind wir?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 26 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 26 contacts → | ||||
Exact match “We are your partner for custom-made windows, entrance doors, sliding doors, façades and fire protection doors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 26 contacts → | ||||
Exact match “Aus der im Jahre 1939 von Rupert App in Leutkirch gegründeten Schlosserei entwickelte sich ein leistungsfähiges Handwerksunternehmen mit drei modernen Fertigungsbetrieben.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “custom window builders”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,073 custom window builders based in Germany
See the full list, filter by size, metro and specialty, and access 1,195 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Custom window builders based in Germany at a glance
As of Sep 19, 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 1,073 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Germany whose business descriptions match “custom window builders” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 1,195 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “custom window builders”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many custom window builders are there based in Germany?
RevenueBase identified 1,073 company matches for custom window builders associated with Germany as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Salamander Mywindow tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most custom window builders?
Berlin leads with 21 company records, followed by Cologne (9) and Dortmund (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,195 professional contacts with verified work emails tracked across these 1,073 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,073 custom window builders based in Germany. Start with a free account, no credit card.
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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 SmartSearch, 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.
More company lists
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Company intelligence · public preview
Top 25 custom window builders based in Germany
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,073 matching company records for custom window builders based in Germany, with 4,561 tracked contacts and 1,195 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 custom window builders based in Germany
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Salamander Mywindowsalamander-windows.com HQ: Türkheim/unterallgäu, GermanyReported employees: 1,001-5,000 | Türkheim/unterallgäu, Germany | 1,001-5,000 | Exact match | 202 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Roto Window And Door Technologyftt.roto-frank.com HQ: Leinfelden-echterdingen, GermanyReported employees: 1,001-5,000 | Leinfelden-echterdingen, Germany | 1,001-5,000 | Exact match | 192 contacts → |
“The name Roto is known throughout the world for innovative, individual and secure fitting systems that increase the added value of windows and doors for people.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Solarluxsolarlux.com HQ: Melle, GermanyReported employees: 501-1,000 | Melle, Germany | 501-1,000 | Exact match | 180 contacts → |
“Das niedersächsische Familienunternehmen aus Bissendorf bei Osnabrück hat sich in fast 30 Jahren national und international einen Namen gemacht.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Heim & Hausheimhaus.de HQ: Duisburg, GermanyReported employees: 1,001-5,000 | Duisburg, Germany | 1,001-5,000 | Exact match | 148 contacts → |
“HEIM & HAUS ist das führende Direktvertriebsunternehmen im Markt der Bauelemente.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Hueck System Gmbh & Co. KGhueck.com HQ: Lüdenscheid, GermanyReported employees: 201-500 | Lüdenscheid, Germany | 201-500 | Exact match | 89 contacts → |
“HUECK by Hydro ist ein Unternehmen der Hydro Building Systems und gehört zu den führenden Anbietern von Fenster, Türen- und Fassadensystemen aus Aluminium.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Wiconawicona.com HQ: Ulm, GermanyReported employees: 501-1,000 | Ulm, Germany | 501-1,000 | Exact match | 82 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Beck Heun Gmbhbeck-heun.deHQ: Mengerskirchen, GermanyReported employees: 501-1,000 | Mengerskirchen, Germany | 501-1,000 | Exact match | 61 contacts → |
“Beck+Heun ist Entwickler, Hersteller und Verarbeiter von energetisch hocheffizienten Systemen rund um das Fenster.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gutmann Bausysteme Gmbhgutmann.de HQ: Weißenburg In Bayern, GermanyReported employees: 201-500 | Weißenburg In Bayern, Germany | 201-500 | Exact match | 57 contacts → |
“GUTMANN Bausysteme GmbH is an international supplier of system-based aluminium solutions for buildings.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Medickemedicke.deHQ: Glauchau, GermanyReported employees: 201-500 | Glauchau, Germany | 201-500 | Exact match | 49 contacts → |
“Die Medicke GmbH mit Hauptsitz in Glauchau und Niederlassungen in Berlin, Borna, Hamburg und Leipzig beschäftigt 330 Mitarbeiter:innen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Hautau Gmbhhautau.de HQ: Helpsen, GermanyReported employees: 201-500 | Helpsen, Germany | 201-500 | Exact match | 49 contacts → |
“HAUTAU ist einer der weltweit führenden Spezialisten für Schiebetechnik und Automation rund um das Fenster.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Unilux Gmbhunilux.de HQ: Salmtal, GermanyReported employees: 201-500 | Salmtal, Germany | 201-500 | Exact match | 47 contacts → |
“Die Unilux GmbH ist ein mittelständiges und eigenständiges Unternehmen mit über 300 Mitarbeitern am Standort Salmtal.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | LAKALlakal.fr HQ: Saarlouis, GermanyReported employees: 201-500 | Saarlouis, Germany | 201-500 | Exact match | 46 contacts → |
“Fondée en 1924 et située à la frontière franco-allemande, LAKAL bénéficie d’une double culture dont les bénéfices rayonnent sur l’ensemble de l’entreprise.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Ventana Deutschland Gmbh & Co. KGventana-deutschland.de HQ: Vreden, GermanyReported employees: 201-500 | Vreden, Germany | 201-500 | Exact match | 44 contacts → |
“As part of the Ventana Group, we are the world's leading specialist in the manufacturing of innovative shapes for vinyl windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Feldhaus Fenster Fassaden Gmbh & Co. KGfeldhaus.de HQ: Emsdetten, GermanyReported employees: 201-500 | Emsdetten, Germany | 201-500 | Exact match | 43 contacts → |
“FELDHAUS Fenster + Fassaden GmbH & Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Gebrüder Schneider Fensterfabrik Gmbh & Co.Kgschneider-fassaden.de HQ: Stimpfach, GermanyReported employees: 201-500 | Stimpfach, Germany | 201-500 | Exact match | 40 contacts → |
“THE FACADE COMPANY - Wir als Gebrüder Schneider Fensterfabrik GmbH & Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Gayko Fenster-Türenwerk Gmbhgayko.de HQ: Wilnsdorf, GermanyReported employees: 51-200 | Wilnsdorf, Germany | 51-200 | Exact match | 36 contacts → |
“GAYKO Fenster-Türenwerk GmbH is a successful and innovative, constantly growing company that offers unique solutions for builders, renovators and architects.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Wirus Fenster Gmbh & Co. KGwirus-fenster.de HQ: Rietberg, GermanyReported employees: 201-500 | Rietberg, Germany | 201-500 | Exact match | 34 contacts → |
“Fenster und Haustüren aus Kunststoff und aus Aluminium Qualität und Service der Größenordnung XXL Energieeffizient - Sicher - Barrierefrei XXL ist dabei keine kurzlebige…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Wigger Fenster Fassaden Gmbhwigger.de HQ: Rosendahl, GermanyReported employees: 201-500 | Rosendahl, Germany | 201-500 | Exact match | 33 contacts → |
“Wigger Fenster + Fassaden Persönlich.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Stürtz Maschinenbau Gmbhstuertz.com HQ: GermanyReported employees: 201-500 | Germany | 201-500 | Exact match | 31 contacts → |
“Für jede Anpassung die maßgeschneiderte Lösung - Ob Einzelmaschine oder komplettes Automatisierungssystem, aufstrebender Fensterbaubetrieb oder großes Unternehmen – wir sind der…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Haga Metallbau Gmbhhaga-metallbau.de HQ: Hofheim, GermanyReported employees: 201-500 | Hofheim, Germany | 201-500 | Exact match | 31 contacts → |
“HAGA ist ein Handwerksunternehmen, das handwerkliches Know-how mit modernster Maschinentechnik und industrieller Prozessqualität verbindet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  ALU Group Internationalalugp.comHQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 30 contacts → |
“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.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Gugelfuss Gmbhgugelfuss.de HQ: Elchingen, GermanyReported employees: 201-500 | Elchingen, Germany | 201-500 | Exact match | 28 contacts → |
“Wer sind wir?” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Akotherm Gmbhakotherm.deHQ: Bendorf, GermanyReported employees: 51-200 | Bendorf, Germany | 51-200 | Exact match | 26 contacts → |
“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.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Gerdes Gmbhgerdes-fenster.de HQ: Lengerich, GermanyReported employees: 51-200 | Lengerich, Germany | 51-200 | Exact match | 26 contacts → |
“We are your partner for custom-made windows, entrance doors, sliding doors, façades and fire protection doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Rupert APP Gmbh & COapp.deHQ: Leutkirch Im Allgäu, GermanyReported employees: 201-500 | Leutkirch Im Allgäu, Germany | 201-500 | Exact match | 26 contacts → |
“Aus der im Jahre 1939 von Rupert App in Leutkirch gegründeten Schlosserei entwickelte sich ein leistungsfähiges Handwerksunternehmen mit drei modernen Fertigungsbetrieben.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,073 company matches
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Custom window builders: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
960 records in the displayed employee bands.
113 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,073 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for custom window builders?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many custom window builders did RevenueBase find based in Germany?
The saved snapshot records 1,073 matching company records, 4,561 tracked contacts and 1,195 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 custom window builders based in Germany. Snapshot: September 19, 2026. https://revenuebase.ai/companies/custom-window-builders/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Top 25 custom window builders based in Germany
RevenueBase records 1,073 matching company records for custom window builders based in Germany, with 4,561 tracked contacts and 1,195 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 custom window builders based in Germany
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Salamander Mywindowsalamander-windows.com HQ: Türkheim/unterallgäu, GermanyReported employees: 1,001-5,000 | Türkheim/unterallgäu, Germany | 1,001-5,000 | Exact match | 202 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Roto Window And Door Technologyftt.roto-frank.com HQ: Leinfelden-echterdingen, GermanyReported employees: 1,001-5,000 | Leinfelden-echterdingen, Germany | 1,001-5,000 | Exact match | 192 contacts → |
“The name Roto is known throughout the world for innovative, individual and secure fitting systems that increase the added value of windows and doors for people.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Solarluxsolarlux.com HQ: Melle, GermanyReported employees: 501-1,000 | Melle, Germany | 501-1,000 | Exact match | 180 contacts → |
“Das niedersächsische Familienunternehmen aus Bissendorf bei Osnabrück hat sich in fast 30 Jahren national und international einen Namen gemacht.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Heim & Hausheimhaus.de HQ: Duisburg, GermanyReported employees: 1,001-5,000 | Duisburg, Germany | 1,001-5,000 | Exact match | 148 contacts → |
“HEIM & HAUS ist das führende Direktvertriebsunternehmen im Markt der Bauelemente.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Hueck System Gmbh & Co. KGhueck.com HQ: Lüdenscheid, GermanyReported employees: 201-500 | Lüdenscheid, Germany | 201-500 | Exact match | 89 contacts → |
“HUECK by Hydro ist ein Unternehmen der Hydro Building Systems und gehört zu den führenden Anbietern von Fenster, Türen- und Fassadensystemen aus Aluminium.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Wiconawicona.com HQ: Ulm, GermanyReported employees: 501-1,000 | Ulm, Germany | 501-1,000 | Exact match | 82 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Beck Heun Gmbhbeck-heun.de HQ: Mengerskirchen, GermanyReported employees: 501-1,000 | Mengerskirchen, Germany | 501-1,000 | Exact match | 61 contacts → |
“Beck+Heun ist Entwickler, Hersteller und Verarbeiter von energetisch hocheffizienten Systemen rund um das Fenster.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gutmann Bausysteme Gmbhgutmann.de HQ: Weißenburg In Bayern, GermanyReported employees: 201-500 | Weißenburg In Bayern, Germany | 201-500 | Exact match | 57 contacts → |
“GUTMANN Bausysteme GmbH is an international supplier of system-based aluminium solutions for buildings.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Medickemedicke.de HQ: Glauchau, GermanyReported employees: 201-500 | Glauchau, Germany | 201-500 | Exact match | 49 contacts → |
“Die Medicke GmbH mit Hauptsitz in Glauchau und Niederlassungen in Berlin, Borna, Hamburg und Leipzig beschäftigt 330 Mitarbeiter:innen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Hautau Gmbhhautau.de HQ: Helpsen, GermanyReported employees: 201-500 | Helpsen, Germany | 201-500 | Exact match | 49 contacts → |
“HAUTAU ist einer der weltweit führenden Spezialisten für Schiebetechnik und Automation rund um das Fenster.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Unilux Gmbhunilux.de HQ: Salmtal, GermanyReported employees: 201-500 | Salmtal, Germany | 201-500 | Exact match | 47 contacts → |
“Die Unilux GmbH ist ein mittelständiges und eigenständiges Unternehmen mit über 300 Mitarbeitern am Standort Salmtal.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | LAKALlakal.fr HQ: Saarlouis, GermanyReported employees: 201-500 | Saarlouis, Germany | 201-500 | Exact match | 46 contacts → |
“Fondée en 1924 et située à la frontière franco-allemande, LAKAL bénéficie d’une double culture dont les bénéfices rayonnent sur l’ensemble de l’entreprise.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Ventana Deutschland Gmbh & Co. KGventana-deutschland.de HQ: Vreden, GermanyReported employees: 201-500 | Vreden, Germany | 201-500 | Exact match | 44 contacts → |
“As part of the Ventana Group, we are the world's leading specialist in the manufacturing of innovative shapes for vinyl windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Feldhaus Fenster Fassaden Gmbh & Co. KGfeldhaus.de HQ: Emsdetten, GermanyReported employees: 201-500 | Emsdetten, Germany | 201-500 | Exact match | 43 contacts → |
“FELDHAUS Fenster + Fassaden GmbH & Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Gebrüder Schneider Fensterfabrik Gmbh & Co.Kgschneider-fassaden.de HQ: Stimpfach, GermanyReported employees: 201-500 | Stimpfach, Germany | 201-500 | Exact match | 40 contacts → |
“THE FACADE COMPANY - Wir als Gebrüder Schneider Fensterfabrik GmbH & Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Gayko Fenster-Türenwerk Gmbhgayko.de HQ: Wilnsdorf, GermanyReported employees: 51-200 | Wilnsdorf, Germany | 51-200 | Exact match | 36 contacts → |
“GAYKO Fenster-Türenwerk GmbH is a successful and innovative, constantly growing company that offers unique solutions for builders, renovators and architects.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Wirus Fenster Gmbh & Co. KGwirus-fenster.de HQ: Rietberg, GermanyReported employees: 201-500 | Rietberg, Germany | 201-500 | Exact match | 34 contacts → |
“Fenster und Haustüren aus Kunststoff und aus Aluminium Qualität und Service der Größenordnung XXL Energieeffizient - Sicher - Barrierefrei XXL ist dabei keine kurzlebige…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Wigger Fenster Fassaden Gmbhwigger.de HQ: Rosendahl, GermanyReported employees: 201-500 | Rosendahl, Germany | 201-500 | Exact match | 33 contacts → |
“Wigger Fenster + Fassaden Persönlich.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Stürtz Maschinenbau Gmbhstuertz.com HQ: GermanyReported employees: 201-500 | Germany | 201-500 | Exact match | 31 contacts → |
“Für jede Anpassung die maßgeschneiderte Lösung - Ob Einzelmaschine oder komplettes Automatisierungssystem, aufstrebender Fensterbaubetrieb oder großes Unternehmen – wir sind der…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Haga Metallbau Gmbhhaga-metallbau.de HQ: Hofheim, GermanyReported employees: 201-500 | Hofheim, Germany | 201-500 | Exact match | 31 contacts → |
“HAGA ist ein Handwerksunternehmen, das handwerkliches Know-how mit modernster Maschinentechnik und industrieller Prozessqualität verbindet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | ALU Group Internationalalugp.com HQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 30 contacts → |
“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.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Gugelfuss Gmbhgugelfuss.de HQ: Elchingen, GermanyReported employees: 201-500 | Elchingen, Germany | 201-500 | Exact match | 28 contacts → |
“Wer sind wir?” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Akotherm Gmbhakotherm.de HQ: Bendorf, GermanyReported employees: 51-200 | Bendorf, Germany | 51-200 | Exact match | 26 contacts → |
“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.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Gerdes Gmbhgerdes-fenster.de HQ: Lengerich, GermanyReported employees: 51-200 | Lengerich, Germany | 51-200 | Exact match | 26 contacts → |
“We are your partner for custom-made windows, entrance doors, sliding doors, façades and fire protection doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Rupert APP Gmbh & COapp.de HQ: Leutkirch Im Allgäu, GermanyReported employees: 201-500 | Leutkirch Im Allgäu, Germany | 201-500 | Exact match | 26 contacts → |
“Aus der im Jahre 1939 von Rupert App in Leutkirch gegründeten Schlosserei entwickelte sich ein leistungsfähiges Handwerksunternehmen mit drei modernen Fertigungsbetrieben.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,073 company matches
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Custom window builders: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
960 records in the displayed employee bands.
113 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,073 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for custom window builders?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many custom window builders did RevenueBase find based in Germany?
The saved snapshot records 1,073 matching company records, 4,561 tracked contacts and 1,195 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
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Cite this list
RevenueBase Data Team. Top 25 custom window builders based in Germany. Snapshot: September 19, 2026. https://revenuebase.ai/companies/custom-window-builders/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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