Company lists · Data refreshed October 2026

Top 25 Energy efficient home upgrade contractors based in Spain

Name: Energy efficient home upgrade contractors based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 466 companies tracked

RevenueBase identified 466 company matches for energy efficient home upgrade contractors associated with Spain as of October 2026 and tracks 2,157 professional contacts across them, including 116 with verified work emails. Madrid is the largest hub.

This list covers company matches for energy efficient home upgrade contractors associated with Spain, 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 October 12, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 12, 2026 How this list was built

466Companies

2,157Contacts tracked

116Verified emails

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The 25 largest energy efficient home upgrade contractors based in Spain

Ranked by team size

Top 25 of 466 company matches for energy efficient home upgrade contractors based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Vivendio Grupo Aconser	Exact match	Granada, SpainHQ recorded Oct 12, 2026	51-200	73 contacts →
	Exact match “En Vivendio, empresa perteneciente a Grupo Aconser, nos dedicamos a la eficiencia y rehabilitación energética.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	1komma5 ES	Exact match	Cerdanyola Del Vallès, SpainHQ recorded Oct 12, 2026	51-200	43 contacts →
	Exact match “Nuestra visión es hacer que todos podamos vivir de las energías renovables para siempre y gratis.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Cambioenergetico	Exact match	Coria, SpainHQ recorded Oct 12, 2026	51-200	43 contacts →
	Exact match “Especialistas en ahorro energético y eficiencia energética.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Solideo ECO Systems	Exact match	Sant Cugat Del Vallès, SpainHQ recorded Oct 12, 2026	51-200	34 contacts →
	Exact match “We are an engineering and consulting company specialised in solar energy and energy efficiency.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	EDA Instalaciones Y Energía S.L	Exact match	Badalona, SpainHQ recorded Oct 12, 2026	51-200	30 contacts →
	Exact match “EDA Instalaciones y Energía S.L, es una empresa con amplia experiencia en el sector de las instalaciones integrales, mantenimientos y estudios de eficiencia energética.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Amexsol	Exact match	Mérida, SpainHQ recorded Oct 12, 2026	51-200	20 contacts →
	Exact match “Aislamientos y Mantenimientos Extremadura” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Pavener	Exact match	Quart De Poblet, SpainHQ recorded Oct 12, 2026	11-50	20 contacts →
	Exact match “Pavener, servicios energéticos, somos especialistas en energía, incorporamos ingeniería, instalación, y mantenimiento.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Vivid Construccion	Exact match	Santander, SpainHQ recorded Oct 12, 2026	11-50	20 contacts →
	Exact match “Construcción Integral de Edificación.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	RELSA	Exact match	Sabadell, SpainHQ recorded Oct 12, 2026	11-50	18 contacts →
	Exact match “Más de 50 años aportando valor a nuestros clientes.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Juan DE Dios Climatizacion SL	Exact match	Molina De Segura, SpainHQ recorded Oct 12, 2026	11-50	18 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Silvasol, S.A	Exact match	Jávea, SpainHQ recorded Oct 12, 2026	11-50	18 contacts →
	Exact match “Nuestra empresa es pionera en España en el aprovechamiento de la energía solar, sector en el que se inició su actividad en 1972.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Wikitel Asesores	Exact match	Seville, SpainHQ recorded Oct 12, 2026	11-50	14 contacts →
	Exact match “Servicios de consultoría energética e instalación de Placas Solares para particulares y empresas.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Zetus Soluciones Energéticas	Exact match	Las Rozas De Madrid, SpainHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “Zetus ofrece servicios de instalaciones de Climatización, Electricidad, Telecomunicaciones, Domótica, Gestión de la Eficiencia Energética y Proyectos de ingeniería para obras…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Ekilor Energías Renovables S.L	Exact match	Donostia, SpainHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “Ekilor Energías Renovables es una ingeniería especializada en la Eficiencia Energética y las Energías Renovables aplicadas a la Industria.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Solaryou	Exact match	Madrid, SpainHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “En SolarYou trabajamos para acelerar la transición hacia un modelo energético más sostenible, haciendo que el acceso a la energía solar sea sencillo, eficiente y sin…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Grupo Renovak Building Company	Exact match	Alicante, SpainHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “Empresa de rehabilitación, construcción, reformas y reparación de edificios y viviendas en Alicante y Elche.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Saufer	Exact match	Lleida, SpainHQ recorded Oct 12, 2026	11-50	12 contacts →
	Exact match “Saufer som la teva empresa d’Instal·lacions i Manteniments de confiança.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Alibaz Inversiones	Exact match	Calvià, SpainHQ recorded Oct 12, 2026	11-50	12 contacts →
	Exact match “Is a Developer and Construction company founded in 1997 with extensive experience in building top quality single family houses, multi-family dwellings, renovating and updating…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Efiwatt	Exact match	Palma De Mallorca, SpainHQ recorded Oct 12, 2026	11-50	12 contacts →
	Exact match “Impulsamos la energía del futuro en las Islas Baleares.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Fama Rehabilitaciones	Exact match	Elche/elx, SpainHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Somos una empresa de construcción ubicada en Elche, especializada en edificaciones, rehabilitaciones integrales, estructurales y mejoras de eficiencia energética.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Homeserve Asistencia Spain SA	Exact match	Pozuelo De Alarcón, SpainHQ recorded Oct 12, 2026	1,001-5,000	11 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Requejo	Exact match	Cubelles, SpainHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match “Instal·lacions Requejo, S.L.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Sertecq, Mantenimiento Integral SL	Exact match	Pamplona, SpainHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Solarcasa Energy	Exact match	Llagostera, SpainHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “Som una companyia basada en la sostenibilitat i l'eficiència energètica, cercant tant el benefici econòmic com el el mediambiental.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Betielek Soluciones Renovables Y Eléctricas Para Hogares Y Empresas	Exact match	Basauri, SpainHQ recorded Oct 12, 2026	11-50	7 contacts →
	Exact match “En Betielek llevamos desde 2013 instalando soluciones energéticas para quienes buscan ahorrar, cuidar el planeta y ganar independencia energética.” Recorded in the RevenueBase company graph · Oct 12, 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 “energy efficient home upgrade contractors”. 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 466 energy efficient home upgrade contractors based in Spain

See the full list, filter by size, metro and specialty, and access 116 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficient home upgrade contractors based in Spain at a glance

As of Oct 12, 2026

5.4%Verified-email coverage

4.6Average contacts per company

1-10Median size (employees)

9.7%Largest-city concentration · Madrid

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

257

11-50

175

51-200

201-500

501-1,000

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 466 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 Spain whose business descriptions match “energy efficient home upgrade contractors” 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 116 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 October 12, 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 “energy efficient home upgrade contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficient home upgrade contractors are there based in Spain?

RevenueBase identified 466 company matches for energy efficient home upgrade contractors associated with Spain as of October 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?

Vivendio Grupo Aconser tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy efficient home upgrade contractors?

Madrid leads with 45 company records, followed by Barcelona (22) and Valencia (10).

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 116 professional contacts with verified work emails tracked across these 466 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 October 12, 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 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.