Company lists · Data refreshed September 2026

Top 25 Sustainable insulation manufacturers based in Spain

Name: Sustainable insulation manufacturers based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 159 companies tracked

RevenueBase identified 159 sustainable insulation manufacturers headquartered in Spain as of September 2026 and tracks 2,013 professional contacts across them, including 381 with verified work emails. Madrid is the largest hub.

This list covers sustainable insulation manufacturers 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 18, 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 18, 2026 86% judged on-target in blind review

159Companies

2,013Contacts tracked

381Verified emails

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The 25 largest sustainable insulation manufacturers based in Spain

Ranked by team size

Top 25 of 159 sustainable insulation manufacturers based in Spain, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable insulation manufacturers: 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	Ursa By Etex	Strong evidence	Madrid, SpainHQ checked Sep 18, 2026	1,001-5,000	605 contacts →
	Strong evidence “URSA is a company dedicated to the manufacture and commercialization of thermal and acoustic insulation materials oriented towards sustainability and energy efficiency in…” Source: RevenueBase Database · checked Sep 18, 2026
2	Synthesia Technology Group	Strong evidence	Castellbisbal Cataluna, SpainHQ checked Sep 18, 2026	201-500	191 contacts →
	Strong evidence “Company specialized in the manufacture and commercialization of chemical products, polyester polyols and polyurethane systems for thermal and acoustic insulation and diverse…” Source: RevenueBase Database · checked Sep 18, 2026
3	Isolana	Indirect evidence	L'hospitalet De Llobregat, SpainHQ checked Sep 18, 2026	201-500	117 contacts →
	Indirect evidence “es una de las empresas líderes en el mercado español especializada en soluciones de aislamiento térmico, acústico y eficiencia energética para la construcción.” Source: RevenueBase Database · checked Sep 18, 2026
4	Knauf Ibérica	Indirect evidence	Madrid, SpainHQ checked Sep 18, 2026	201-500	112 contacts →
	Indirect evidence “Knauf es una multinacional alemana, líder mundial en la fabricación de placas de yeso laminado y productos para la construcción en seco y uno de los principales fabricantes de…” Source: RevenueBase Database · checked Sep 18, 2026
5	Rockwool Peninsular	Indirect evidence	Barcelona, SpainHQ checked Sep 18, 2026	201-500	74 contacts →
	Indirect evidence “Liberamos la energía natural de la roca para enriquecer la vida moderna" ROCKWOOL Group es una compañía industrial especializada y líder en los mercados de los aislamientos, los…” Source: RevenueBase Database · checked Sep 18, 2026
6	Huurre Iberica	Strong evidence	Cassà De La Selva, SpainHQ checked Sep 18, 2026	51-200	40 contacts →
	Strong evidence “Industrial insulating panels for efficient and sustainable buildings” Source: RevenueBase Database · checked Sep 18, 2026
7	AIT Group	Indirect evidence	Montcada I Reixac, SpainHQ checked Sep 18, 2026	51-200	32 contacts →
	Indirect evidence “AIT es una compañía sostenible que cumple con los estándares más avanzados en medio ambiente, dedicada a la fabricación de materiales para el aislamiento acústico y absorbentes de…” Source: RevenueBase Database · checked Sep 18, 2026
8	Thermogreen	Indirect evidence	Noblejas, SpainHQ checked Sep 18, 2026	11-50	22 contacts →
	Indirect evidence “Thermogreen fabrica y comercializa poliestireno extruido (XPS) para su uso en aislamiento térmico, el cual contribuye a una construcción sostenible y energéticamente eficiente…” Source: RevenueBase Database · checked Sep 18, 2026
9	Honext	Partial evidence	Barcelona, SpainHQ checked Sep 18, 2026	11-50	21 contacts →
	Partial evidence “HONEXT is an innovative Barcelona-based company manufacturing certified Circular by design, flame-retardant, non-toxic boards for a sustainable and healthy built environment.” Source: RevenueBase Database · checked Sep 18, 2026
10	Armacell Iberia	Indirect evidence	Esclanyà-begur, SpainHQ checked Sep 18, 2026	51-200	20 contacts →
	Indirect evidence “Como inventora de espuma flexible para el aislamiento de instalaciones y proveedor líder de espumas técnicas, Armacell desarrolla soluciones innovadoras y seguras de aislamiento…” Source: RevenueBase Database · checked Sep 18, 2026
11	Madergia	Indirect evidence	Ansoain, SpainHQ checked Sep 18, 2026	11-50	18 contacts →
	Indirect evidence “Madergia es una empresa de vanguardia en construcción industrializada sostenible y eficiente energéticamente.” Source: RevenueBase Database · checked Sep 18, 2026
12	Bur2000 S.A	Indirect evidence	Gavà, SpainHQ checked Sep 18, 2026	11-50	17 contacts →
	Indirect evidence “Especialistas en la fabricación y distribución de aislamientos térmicos, acústicos, y anti impacto.” Source: RevenueBase Database · checked Sep 18, 2026
13	Amexsol	Indirect evidence	Mérida, SpainHQ checked Sep 18, 2026	51-200	15 contacts →
	Indirect evidence “Aislamientos y Mantenimientos Extremadura” Source: RevenueBase Database · checked Sep 18, 2026
14	Baumit España	Indirect evidence	Móstoles, SpainHQ checked Sep 18, 2026	1,001-5,000	13 contacts →
	Indirect evidence “Empresa fabricante y distribuidora de Baumit Sistemas de Aislamiento Térmico Exterior (SATE), con más de 40 años de experiencia en el mercado europeo.” Source: RevenueBase Database · checked Sep 18, 2026
15	Isopartner España S.L.U	Partial evidence	Sevilla, SpainHQ checked Sep 18, 2026	51-200	12 contacts →
	Partial evidence “ISOPARTNER Insulation Solution España S.L.U.” Source: RevenueBase Database · checked Sep 18, 2026
16	Materiales Calabuig	Indirect evidence	Valencia, SpainHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “Calabuig cuenta con más de 45 años de experiencia en el suministro de materiales de aislamiento, insonorización, impermeabilización, techos, suelos técnicos y decoración.” Source: RevenueBase Database · checked Sep 18, 2026
17	Diaterm Distribucions	Indirect evidence	Sant Quirze Del Vallés, SpainHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “Hace ya más de treinta y cinco años que nos dedicamos a la distribución y asesoramiento de aislamientos para la construcción, la industria y la rehabilitación de edificios.” Source: RevenueBase Database · checked Sep 18, 2026
18	LA Instaladora	Indirect evidence	Hospitalet De Llobregat, SpainHQ checked Sep 18, 2026	51-200	7 contacts →
	Indirect evidence “La Instaladora es una empresa referente en el mercado de aislamientos, destacando tanto en el ámbito industrial como en la edificación.” Source: RevenueBase Database · checked Sep 18, 2026
19	Calorifugados Isotecnic, S.L	Indirect evidence	Barberà Del Vallès, SpainHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “Fabricación e instalación de calorifugado Industrial.” Source: RevenueBase Database · checked Sep 18, 2026
20	Prefaes	Indirect evidence	Cerdá, SpainHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “PREFAES Soluciones Constructivas nace hace 50 años en Cerdà, un pequeño pueblo de València (España), cuando un grupo de profesionales del sector crearon una fábrica de escayola.” Source: RevenueBase Database · checked Sep 18, 2026
21	Arelux TOP Chemicals	Indirect evidence	Cuarte De Huerva, SpainHQ checked Sep 18, 2026	1-10	7 contacts →
	Indirect evidence “Materiales de construcción y eficiencia energética que transforman la vida de tus clientes y te facilitan el trabajo: consigue productos con prestaciones únicas, sin esperas y con…” Source: RevenueBase Database · checked Sep 18, 2026
22	Grupo Flexicel	Partial evidence	Esparreguera, SpainHQ checked Sep 18, 2026	51-200	5 contacts →
	Partial evidence “Grupo Flexicel offers customized solutions for thermal, acoustic and watertight insulation.” Source: RevenueBase Database · checked Sep 18, 2026
23	Aislahome	Indirect evidence	Tudela, SpainHQ checked Sep 18, 2026	11-50	4 contacts →
	Indirect evidence “AISLAHOME es una compañía especializada en el aislamiento térmico y acústico de viviendas mediante la aplicación de celulosa en cualquier tipo de construcción, ya sea piso, casa…” Source: RevenueBase Database · checked Sep 18, 2026
24	Soltea Soluciones S.L	Indirect evidence	Madrid, SpainHQ checked Sep 18, 2026	1-10	4 contacts →
	Indirect evidence “En Soltea Soluciones contamos con un equipo altamente cualificado y dilatada experiencia en la distribución especialista de sistemas constructivos con placas de yeso laminado…” Source: RevenueBase Database · checked Sep 18, 2026
25	Sula Planet	Indirect evidence	Ibiza, SpainHQ checked Sep 18, 2026	11-50	3 contacts →
	Indirect evidence “SULA PLANET es una empresa dedicada a la distribución de materiales de construcción especializada en aislamientos termoacústicos, falsos techos, tabiquería y chimeneas.” Source: RevenueBase Database · checked Sep 18, 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: sustainable insulation manufacturers. 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 sustainable insulation manufacturers.
Partial evidence: Its own public description names part of sustainable insulation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable insulation manufacturers. 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 159 sustainable insulation manufacturers based in Spain

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Sustainable insulation manufacturers based in Spain at a glance

As of Sep 18, 2026

18.9%Verified-email coverage

12.7Average contacts per company

11-50Median size (employees)

7.5%Largest-city concentration · Madrid

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 159 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 sustainable insulation manufacturers, 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 “sustainable insulation manufacturers”. 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 sustainable insulation manufacturers), 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 sustainable insulation manufacturers, 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, 381 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 18, 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 sustainable insulation manufacturers, 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 sustainable insulation manufacturers are there based in Spain?

RevenueBase identified 159 sustainable insulation manufacturers 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?

Ursa By Etex, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most sustainable insulation manufacturers?

Madrid leads with 12 headquartered companies, followed by Barcelona (8) and Esparreguera (3).

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 381 verified decision-maker contacts tracked across these 159 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 18, 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.