Company lists · Data refreshed September 2026

Top 25 Custom window builders based in Spain

Name: Custom window builders based in Spain
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 Spain as of September 2026 and tracks 1,442 professional contacts across them, including 90 with verified work emails. Madrid is the largest hub.

This list covers custom window builders headquartered in Spain, 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

1,442Contacts tracked

90Verified emails

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The 25 largest custom window builders based in Spain

Ranked by team size

Top 25 of 309 custom window builders based in Spain, 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	Exlabesa Architecture	Indirect evidence	Picaraña, SpainHQ checked Sep 19, 2026	1,001-5,000	187 contacts →
	Indirect evidence “En Exlabesa Architecture diseñamos y desarrollamos sistemas de carpintería y fachadas de aluminio que contribuyen al bienestar y confort de las personas, a la sostenibilidad de…” Source: RevenueBase Database · checked Sep 19, 2026
2	Nevaluz	Indirect evidence	Écija, SpainHQ checked Sep 19, 2026	51-200	67 contacts →
	Indirect evidence “Nevaluz Group es una multinacional española fabricante y distribuidora de sistemas y componentes de decoración de ventanas y puertas, protección ambiental, protección solar y…” Source: RevenueBase Database · checked Sep 19, 2026
3	Fenster Tancaments	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	65 contacts →
	Indirect evidence “FENSTER es una empresa de cerramientos de exterior que se dedica a la fabricación e instalación de: ventanas en aluminio y PVC en todas sus variantes de apertura y tamaño…” Source: RevenueBase Database · checked Sep 19, 2026
4	K Line España & Portugal Groupe Liébot	Indirect evidence	Parets Del Vallés, SpainHQ checked Sep 19, 2026	1,001-5,000	34 contacts →
	Indirect evidence “K•LINE Nº1 europeo en diseño y fabricación de ventanas y puertas de aluminio para el profesional.” Source: RevenueBase Database · checked Sep 19, 2026
5	Incerco TOP Quality Windows	Indirect evidence	Vila-real, SpainHQ checked Sep 19, 2026	51-200	31 contacts →
	Indirect evidence “Incerco esta especializada en la fabricación de ventanas y puertas de PVC KOMMERLING y ALUMINIO.” Source: RevenueBase Database · checked Sep 19, 2026
6	Centro Alum	Indirect evidence	Sabadell, SpainHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Desde 1985, diseñamos y comercializamos sistemas de ventanas y cerramientos en ALUMINIO de alta calidad para la arquitectura y la construcción-Empezamos nuestra trayectoria con 3…” Source: RevenueBase Database · checked Sep 19, 2026
7	SCW Smart Curtain Wall S.A	Indirect evidence	Getafe, SpainHQ checked Sep 19, 2026	51-200	20 contacts →
	Indirect evidence “SCW - Smart Curtain Wall is leader in the design, manufacture and installation of glass façade for building envelopes, becoming your global partner throughout the entire project…” Source: RevenueBase Database · checked Sep 19, 2026
8	Tecalum Sistemes	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Aportamos una solución diferenciada para fachadas ligeras, muros cortina, fachadas fotovoltaicas, y cerramientos para la edificación, ofreciendo proyectos llave en mano que…” Source: RevenueBase Database · checked Sep 19, 2026
9	Mapuve Ventanas	Indirect evidence	Burgos, SpainHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Fundada en 1981, MAPUVE VENTANAS es una empresa burgalesa especializada en la comercialización, fabricación e instalación de ventanas y cerramientos de altas prestaciones.” Source: RevenueBase Database · checked Sep 19, 2026
10	Aluminios Marton	Partial evidence	Ripollet, SpainHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Aluminios MARTON, has established itself as one of the leading aluminum suppliers offering aluminum carpentry systems for the construction of doors, windows, gates and roofs.” Source: RevenueBase Database · checked Sep 19, 2026
11	Oknafej	Indirect evidence	Málaga, SpainHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Oknafej es una empresa ubicada en Málaga cuya actividad principal es la producción y el suministro de ventanas de PVC.” Source: RevenueBase Database · checked Sep 19, 2026
12	Fakro Iberia	Partial evidence	Valladolid, SpainHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial evidence “FAKRO Iberia is part of FAKRO, a global leader in the manufacturing of roof windows, flat roof windows, and loft ladders.” Source: RevenueBase Database · checked Sep 19, 2026
13	Suvent	Indirect evidence	Lominchar, SpainHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Fabricación y Distribuidor de Puertas y Ventanas eficientes energéticamente de Aluminio y PVC para nuevas edificaciones y rehabilitación.” Source: RevenueBase Database · checked Sep 19, 2026
14	Hazul Spain	Indirect evidence	Boadilla Del Monte, SpainHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “HAZUL es una empresa líder en la Comunidad de Madrid especializada en cerramientos y ventanas de alta calidad, con profesionales de más de 20 años de experiencia transformando…” Source: RevenueBase Database · checked Sep 19, 2026
15	Ventanas Uin2	Indirect evidence	Sant Celoni, SpainHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “uin2 diseña, fabrica y comercializa una completa gama de ventanas de aluminio extruido de lamas giratorias caracterizadas por sus altas prestaciones técnicas y su alto valor…” Source: RevenueBase Database · checked Sep 19, 2026
16	Carvidral, S.L	Indirect evidence	Olesa De Montserrat, SpainHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
17	Replus	Indirect evidence	Cocentaina, SpainHQ checked Sep 19, 2026	51-200	5 contacts →
	Indirect evidence “Somos una empresa dinámica con una trayectoria cercana a los 30 años y uno de los fabricantes de ventanas y perfiles de PVC líderes del sector en España.” Source: RevenueBase Database · checked Sep 19, 2026
18	Ventanas Aislantes Madrid SL	Indirect evidence	Algete, SpainHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Ventanas y estructuras especiales de alta calidad para profesionales” Source: RevenueBase Database · checked Sep 19, 2026
19	Shitecma	Indirect evidence	Alcázar De San Juan, SpainHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Shitecma apuesta por la innovación tecnológica y la calidad tanto en el producto como en el servicio que ofrece a sus clientes.” Source: RevenueBase Database · checked Sep 19, 2026
20	Glekom	Indirect evidence	Ferrol, SpainHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Desarrollamos ventanas, puertas, fachadas y estructuras singulares para la envolvente de edificios y proyectos del sector industrial, de servicios y residencial, en todo el mundo.” Source: RevenueBase Database · checked Sep 19, 2026
21	Grup Orell	Indirect evidence	Manacor, SpainHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “En Grup Orell nos dedicamos a la fabricación de puertas, ventanas y persianas de madera maciza y ventanas madera-aluminio.” Source: RevenueBase Database · checked Sep 19, 2026
22	Jacema	Indirect evidence	Santiago De La Ribera, SpainHQ checked Sep 19, 2026	51-200	3 contacts →
	Indirect evidence “Nuestra historia comenzó en 1985, cuando un joven empresario, lleno de ilusión y espíritu de superación, dio los primeros pasos de JACEMA, la que se ha convertido en una empresa…” Source: RevenueBase Database · checked Sep 19, 2026
23	Vidres Mora SL	Indirect evidence	Torello, SpainHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	Vidres Matamalas	Indirect evidence	Manacor, SpainHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “Vidres Matamalas is a construction company based out of Spain.” Source: RevenueBase Database · checked Sep 19, 2026
25	venpro.es	Indirect evidence	Seville, SpainHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Nuestro objetivo es garantizar el confort, seguridad y bienestar en la ejecución e instalación en cada uno de los proyectos en los que participamos.” 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 Spain

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Custom window builders based in Spain at a glance

As of Sep 19, 2026

6.2%Verified-email coverage

4.7Average contacts per company

11-50Median size (employees)

7.1%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

139

11-50

135

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, 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 Spain 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 Spain 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, 90 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 Spain?

RevenueBase identified 309 custom window builders headquartered in Spain 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?

Exlabesa Architecture, headquartered in Padron, tops this list with the largest team on record.

Which city has the most custom window builders?

Madrid leads with 22 headquartered companies, followed by Barcelona (16) and Valencia (10).

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 90 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.