Company lists · Data refreshed September 2026

Top 25 Custom window builders based in Belgium

Name: Custom window builders based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 309 companies tracked

RevenueBase identified 309 custom window builders headquartered in Belgium as of September 2026 and tracks 2,387 professional contacts across them, including 865 with verified work emails. Antwerpen is the largest hub.

This list covers custom window builders headquartered in Belgium, 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 19, 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 19, 2026 86% judged on-target in blind review

309Companies

2,387Contacts tracked

865Verified emails

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The 25 largest custom window builders based in Belgium

Ranked by team size

Top 25 of 309 custom window builders based in Belgium, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to custom window builders: 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	Belisol	Partial evidence	Hasselt, BelgiumHQ checked Sep 19, 2026	501-1,000	271 contacts →
	Partial evidence “For more than 48 years, Belisol has been a specialist in windows, doors and sliding doors in PVC, aluminium and wood.” Source: RevenueBase Database · checked Sep 19, 2026
2	Profel Group	Indirect evidence	Pelt, BelgiumHQ checked Sep 19, 2026	1,001-5,000	267 contacts →
	Indirect evidence “De Profel Group is Benelux marktleider in de productie van ramen en deuren in aluminium, pvc en hout voor de residentiële woningbouw.” Source: RevenueBase Database · checked Sep 19, 2026
3	Vorsselmans NV	Indirect evidence	Wuustwezel, BelgiumHQ checked Sep 19, 2026	51-200	80 contacts →
	Indirect evidence “Al meer dan 45 jaar is Vorsselmans specialist in aluminium ramen en gevels.” Source: RevenueBase Database · checked Sep 19, 2026
4	Kwadro Ramen & Deuren	Indirect evidence	Hasselt, BelgiumHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “KwadrO is dé referentie als het gaat over ramen en deuren in PVC, aluminium of hout.” Source: RevenueBase Database · checked Sep 19, 2026
5	Engels Windows & Doors	Partial evidence	Lokeren, BelgiumHQ checked Sep 19, 2026	51-200	61 contacts →
	Partial evidence “It's all about beautiful windows and doors WOOD \| ALUMINIUM” Source: RevenueBase Database · checked Sep 19, 2026
6	Group Ceyssens	Indirect evidence	Heusden-zolder, BelgiumHQ checked Sep 19, 2026	51-200	55 contacts →
	Indirect evidence “Since 1965, Group Ceyssens has been an expert in glass products that create space and openness.” Source: RevenueBase Database · checked Sep 19, 2026
7	Lootens	Indirect evidence	Drongen, BelgiumHQ checked Sep 19, 2026	51-200	33 contacts →
	Indirect evidence “Over the years, Lootens has developed a distinctive expertise in the design and manufacture of high-end joinery.” Source: RevenueBase Database · checked Sep 19, 2026
8	Pouleyn	Partial evidence	Anzegem, BelgiumHQ checked Sep 19, 2026	51-200	28 contacts →
	Partial evidence “Pouleyn is synonymous with refined aesthetics and timeless craftsmanship in exclusive windows, doors and gates.” Source: RevenueBase Database · checked Sep 19, 2026
9	Bruynseels-Vochten NV	Indirect evidence	Kalmthout, BelgiumHQ checked Sep 19, 2026	51-200	26 contacts →
	Indirect evidence “Bruynseels-Vochten NV plaatst al meer dan 20 jaar ramen en deuren in PVC en aluminium, en veranda's in aluminium van topkwaliteit.” Source: RevenueBase Database · checked Sep 19, 2026
10	Timmerman	Indirect evidence	Maldegem, BelgiumHQ checked Sep 19, 2026	51-200	23 contacts →
	Indirect evidence “Leveren van ramen en deuren is dé missie die Timmerman keer op keer opnieuw tot een goed einde brengt.” Source: RevenueBase Database · checked Sep 19, 2026
11	HANIN	Indirect evidence	Marche-en-famenne, BelgiumHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
12	Corialis Group	Indirect evidence	Lokeren, BelgiumHQ checked Sep 19, 2026	1,001-5,000	21 contacts →
	Indirect evidence “Corialis Group (Core Innovative Aluminium Integrated Solutions) is a leading player in the design and manufacturing of high quality, technologically-advanced aluminium systems for…” Source: RevenueBase Database · checked Sep 19, 2026
13	Fabribois & Fabrialu	Indirect evidence	Waimes, BelgiumHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “FABRIBOIS crée et produit des gammes de châssis, des portes et des murs-rideaux sur mesure de très haute performance en aluminium, bois, bois-aluminium et résistant au feu.” Source: RevenueBase Database · checked Sep 19, 2026
14	Building Windows NV	Partial evidence	Anzegem, BelgiumHQ checked Sep 19, 2026	51-200	17 contacts →
	Partial evidence “Building Windows is a fast growing company that specialises in the building of PVC and Aluminium windows, doors and varandas.” Source: RevenueBase Database · checked Sep 19, 2026
15	Vrebos	Indirect evidence	Overijse, BelgiumHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Vrebos is a construction company based out of 6 Duisburgsesteenweg, Overijse, Belgium.” Source: RevenueBase Database · checked Sep 19, 2026
16	Alutec	Indirect evidence	Perwez, BelgiumHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Depuis plus de 40 ans, notre société, orientée vers une clientèle professionnelle, est en évolution constante et doit son succès non seulement à la qualité de ses matériaux mais…” Source: RevenueBase Database · checked Sep 19, 2026
17	DE Jaeghere BV	Indirect evidence	Meulebeke, BelgiumHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “De Jaeghere verzorgt al meer dan 45 jaar ramen, deuren en ander buitenschrijnwerk.” Source: RevenueBase Database · checked Sep 19, 2026
18	DE Clerck Ramen EN Deuren	Indirect evidence	Sint-gillis-waas, BelgiumHQ checked Sep 19, 2026	51-200	16 contacts →
	Indirect evidence “Bij De Clerck hebben we al meer dan 50 jaar ervaring in de #productie en #plaatsing van #ramen en #deuren.” Source: RevenueBase Database · checked Sep 19, 2026
19	Schüco Belgium NV SA	Indirect evidence	Eupen, BelgiumHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Schüco – Systeemoplossingen voor ramen, deuren en gevels Met zijn wereldwijde netwerk van partners, architecten, planners en investeerders realiseert Schüco duurzame…” Source: RevenueBase Database · checked Sep 19, 2026
20	Louvers	Partial evidence	Zaventem, BelgiumHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “For more than 35 years, LOUVERS has been designing, manufacturing, and installing custom solar shading solutions, both indoors and outdoors.” Source: RevenueBase Database · checked Sep 19, 2026
21	Pauwels Veranda's Ramen Deuren	Partial evidence	Ninove, BelgiumHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Pauwels verandas, windows and doors is an authorized Reynaers Aluminium Partner with over 60 years of experience in veranda technology and over 20 years of experience in windows…” Source: RevenueBase Database · checked Sep 19, 2026
22	Vandenbroucke Window Solutions	Indirect evidence	Wevelgem, BelgiumHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Al meer dan 80 jaar lang is familiebedrijf Ramen Vandenbroucke uit West-Vlaanderen gespecialiseerd in de productie en plaatsing van ramen & deuren.” Source: RevenueBase Database · checked Sep 19, 2026
23	Alu2	Indirect evidence	St-truiden, BelgiumHQ checked Sep 19, 2026	51-200	13 contacts →
	Indirect evidence “ALU2+ ontwerpt, produceert en installeert aluminium buitenschrijnwerk voor nieuwbouw- en renovatieprojecten.” Source: RevenueBase Database · checked Sep 19, 2026
24	Hasmetal Sprl	Indirect evidence	Lessines, BelgiumHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Hasmetal is a facade company providing clients with solutions for building envelopes to their specific needs and requirements.” Source: RevenueBase Database · checked Sep 19, 2026
25	Winfera Bvba	Indirect evidence	Tongeren, BelgiumHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Winfera werd opgericht door Patrick Hilven, voormalig afgevaardigd bestuurder van één van de grootste franchise organisaties in buitenschrijnwerk van België en Raf Lemmens…” Source: RevenueBase Database · checked Sep 19, 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: custom window builders. 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 custom window builders.
Partial evidence: Its own public description names part of custom window builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom window builders. 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 309 custom window builders based in Belgium

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Custom window builders based in Belgium at a glance

As of Sep 19, 2026

36.2%Verified-email coverage

7.7Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Antwerpen

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

139

11-50

124

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 309 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 custom window builders, 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 Belgium whose own description of what they do matches “custom window builders”. 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 custom window builders), 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 custom window builders, and records with no verified work email. Companies headquartered outside Belgium 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, 865 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 19, 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 custom window builders, 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 custom window builders are there based in Belgium?

RevenueBase identified 309 custom window builders headquartered in Belgium 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?

Belisol, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most custom window builders?

Antwerpen leads with 5 headquartered companies, followed by Gent (5) and Anzegem (4).

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 865 verified decision-maker contacts tracked across these 309 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 19, 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.