Company lists · Data refreshed October 2026

Top 25 Commercial energy efficiency retrofit companies based in Spain

Name: Commercial energy efficiency retrofit companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 337 companies tracked

RevenueBase identified 337 company matches for commercial energy efficiency retrofit companies associated with Spain as of October 2026 and tracks 1,693 professional contacts across them, including 123 with verified work emails. Madrid is the largest hub.

This list covers company matches for commercial energy efficiency retrofit companies 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 10, 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 10, 2026 How this list was built

337Companies

1,693Contacts tracked

123Verified emails

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The 25 largest commercial energy efficiency retrofit companies based in Spain

Ranked by team size

Top 25 of 337 company matches for commercial energy efficiency retrofit companies based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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	NESS	Exact match	Madrid, SpainHQ recorded Oct 10, 2026	11-50	84 contacts →
	Exact match “NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Vivendio Grupo Aconser	Exact match	Granada, SpainHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
3	Cambioenergetico	Exact match	Coria, SpainHQ recorded Oct 10, 2026	51-200	43 contacts →
	Exact match “Especialistas en ahorro energético y eficiencia energética.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Naturelek Energía E Ingeniería	Exact match	Derio, SpainHQ recorded Oct 10, 2026	51-200	31 contacts →
	Exact match “Somos una ingeniería y consultora especializada en eficiencia, gestión y transformación energética para empresas, con un enfoque técnico, integral y orientado a resultados.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	ZULUX	Exact match	Santa Pola, SpainHQ recorded Oct 10, 2026	11-50	28 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	Inergy	Exact match	Barcelona, SpainHQ recorded Oct 10, 2026	11-50	27 contacts →
	Exact match “Inergy tiene como misión contribuir al ahorro energético de sus clientes, reduciendo su factura energética, y favoreciendo al mismo tiempo la mitigación del cambio climático.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Letter Ingenieros	Exact match	Granada, SpainHQ recorded Oct 10, 2026	11-50	26 contacts →
	Exact match “We offer companies efficient solutions with the best consulting and engineering services in: Energy Management Energy certification and qualification of buildings Energy…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Cavo Energías	Exact match	Valencia, SpainHQ recorded Oct 10, 2026	11-50	23 contacts →
	Exact match “Empresa de servicios energéticos, especializada en diversas disciplinas en materia de ahorro energético y con una amplia formación derivada de sus más de 15 años de experiencia en…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	A3e	Exact match	Madrid, SpainHQ recorded Oct 10, 2026	1-10	18 contacts →
	Exact match “A3E- Asociación Nacional de Empresas de Eficiencia Energética es una organización sin ánimo de lucro de ámbito nacional que agrupa y representa a más de 160 empresas, que…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Ahorrenergia	Exact match	Madrid, SpainHQ recorded Oct 10, 2026	51-200	17 contacts →
	Exact match “Ahorrenergía es un grupo formado por profesionales del sector energético, tecnológico y financiero, comprometido con la Eficiencia Energética, Medio Ambiente y Ahorro Sostenible…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	AR Rehabilitación Energética	Exact match	Toledo, SpainHQ recorded Oct 10, 2026	11-50	16 contacts →
	Exact match “En AR Rehabilitación Energética somos una compañía especializada en el desarrollo y ejecución integral de proyectos de rehabilitación energética de edificios residenciales, con…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Luzía Energía	Exact match	Mairena Del Aljarafe, SpainHQ recorded Oct 10, 2026	51-200	15 contacts →
	Exact match “Luzía Energía is a company dedicated to saving and energy efficiency.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Aliara Energía	Exact match	Pozuelo De Alarcón, SpainHQ recorded Oct 10, 2026	11-50	15 contacts →
	Exact match “Aliara personaliza las soluciones de eficiencia energética relacionadas con el gas natural: desde la auditoria energética, la financiación de proyectos o el mantenimiento con…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	KW Solutions	Exact match	Málaga, SpainHQ recorded Oct 10, 2026	11-50	14 contacts →
	Exact match “Desarrollamos soluciones de eficiencia energética.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Future Motors Iberia	Exact match	Madrid, SpainHQ recorded Oct 10, 2026	11-50	14 contacts →
	Exact match “Impulsamos la eficiencia energética.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Gen0	Exact match	Madrid, SpainHQ recorded Oct 10, 2026	11-50	14 contacts →
	Exact match “We work with our clients to help them reduce their energy use and cost and related environmental impact including green house gas emissions through energy management systems based…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Ekilor Energías Renovables S.L	Exact match	Donostia, SpainHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
18	Fusiona Mantenimientos S.A	Exact match	Alcorcón (madrid), SpainHQ recorded Oct 10, 2026	11-50	13 contacts →
	Exact match “Eficiencia energética y ahorro para nuestros clientes.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Couce Consulting	Exact match	Zaragoza, SpainHQ recorded Oct 10, 2026	1-10	11 contacts →
	Exact match “Couce Consulting nace en 2010 con un objetivo claro Ayudar a grandes empresas, PYMES y autónomos a ahorrar en sus facturas.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Zontak Energía	Exact match	León, SpainHQ recorded Oct 10, 2026	11-50	10 contacts →
	Exact match “Hola!” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	Globeenergy	Exact match	Onda, SpainHQ recorded Oct 10, 2026	11-50	9 contacts →
	Exact match “Globeenergy, energía para todos.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Quality Energy Consulting	Exact match	Alfafar, SpainHQ recorded Oct 10, 2026	11-50	9 contacts →
	Exact match “Quality es una empresa que nace de la búsqueda de la eficiencia energética aportando un valor añadido a la optimización del consumo eléctrico.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Zuia Ingeniería	Exact match	Vitoria-gasteiz, SpainHQ recorded Oct 10, 2026	11-50	9 contacts →
	Exact match “Somos una #ingeniería eléctrica especializada en las energías renovables, la #monitorización de instalaciones, así como el asesoramiento especializado de sistemas de #eficiencia…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Coanatur Energia Y Ambientes SL	Exact match	Castelló De La Plana, SpainHQ recorded Oct 10, 2026	11-50	7 contacts →
	Exact match “Coanatur energia y ambiente s.l” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Energia0	Exact match	Barcelona, SpainHQ recorded Oct 10, 2026	1-10	7 contacts →
	Exact match “Engineering, Architecture and Energy Efficiency Services.” Recorded in the RevenueBase company graph · Oct 10, 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 “commercial energy efficiency retrofit companies”. 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 337 commercial energy efficiency retrofit companies based in Spain

See the full list, filter by size, metro and specialty, and access 123 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial energy efficiency retrofit companies based in Spain at a glance

As of Oct 10, 2026

7.3%Verified-email coverage

5.0Average contacts per company

1-10Median size (employees)

20.8%Largest-city concentration · Madrid

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

222

11-50

51-200

201-500

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 337 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 “commercial energy efficiency retrofit companies” 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 123 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 10, 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.

Commercial energy efficiency retrofit companies by metro

Commercial energy efficiency retrofit companies in Madrid70

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 “commercial energy efficiency retrofit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial energy efficiency retrofit companies are there based in Spain?

RevenueBase identified 337 company matches for commercial energy efficiency retrofit companies 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?

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

Which city has the most commercial energy efficiency retrofit companies?

Madrid leads with 70 company records, followed by Barcelona (27) and Valencia (11).

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 123 professional contacts with verified work emails tracked across these 337 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 10, 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.