Company lists · Data refreshed September 2026

Top 25 Industrial energy efficiency firms based in Spain

Name: Industrial energy efficiency firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 839 companies tracked

RevenueBase identified 839 company matches for industrial energy efficiency firms associated with Spain as of September 2026 and tracks 6,959 professional contacts across them, including 694 with verified work emails. Madrid is the largest hub.

This list covers company matches for industrial energy efficiency firms 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 September 17, 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 Sep 17, 2026 How this list was built

839Companies

6,959Contacts tracked

694Verified emails

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The 25 largest industrial energy efficiency firms based in Spain

Ranked by team size

Top 25 of 839 company matches for industrial energy efficiency firms based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Inerco	Exact match	Seville, SpainHQ recorded Sep 17, 2026	1,001-5,000	688 contacts →
	Exact match “INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	AESA	Exact match	Barcelona, SpainHQ recorded Sep 17, 2026	n/a	351 contacts →
	Exact match “Ingeniería y Consultoría Energética orientada a la búsqueda y el desarrollo de soluciones energéticas de alta eficiencia para sus Clientes.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	PGI Engineering & Consulting	Exact match	Barcelona, SpainHQ recorded Sep 17, 2026	51-200	198 contacts →
	Exact match “PGI Engineering & Consulting es una empresa global de servicios de ingeniería y consultoría que trabaja transversalmente para dar las mejores soluciones técnicas de diseño a…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Quantica Renovables	Exact match	Bollullos De La Mitación, SpainHQ recorded Sep 17, 2026	201-500	162 contacts →
	Exact match “QUANTICA Renovables is a company dedicated to providing cost and carbon efficiencies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Iturcemi Grupo	Exact match	Avilés, SpainHQ recorded Sep 17, 2026	51-200	100 contacts →
	Exact match “Iturcemi ingeniería con más de 25 años de experiencia, siendo un referente en el sector en el Norte de España.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Grupo Trebol Energia	Exact match	Sant Joan Despi, SpainHQ recorded Sep 17, 2026	51-200	84 contacts →
	Exact match “We are one of the leading energy business consultancies in Spain.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	NESS	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	11-50	81 contacts →
	Exact match “NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Vivendio Grupo Aconser	Exact match	Granada, SpainHQ recorded Sep 17, 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 · Sep 17, 2026 · View company records in RevenueBase
9	Azigrene Energy Consulting	Exact match	Valencia/valència, SpainHQ recorded Sep 17, 2026	51-200	58 contacts →
	Exact match “Azigrene es una empresa de servicios de Consultoría e Ingeniería Energética, que desarrolla su actividad en- Reducción del coste: Definición de la mejor estrategia de compra…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	ECOMT	Exact match	A Coruña, SpainHQ recorded Sep 17, 2026	51-200	57 contacts →
	Exact match “We provide #SmartEnergy and #SmartBuilding solutions with a clear objective; to help companies to find balance between financial peace of mind, corporate well-being, and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Smarkia	Exact match	León, SpainHQ recorded Sep 17, 2026	51-200	53 contacts →
	Exact match “Smarkia is the world's leading SaaS Energy Management Platform that has (R)evolutionized the Energy Optimization paradigm, worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Bettergy	Exact match	Málaga, SpainHQ recorded Sep 17, 2026	11-50	52 contacts →
	Exact match “betterenergy Ponemos tus datos energéticos en acción.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Spacewell Energy Dexma	Exact match	Barcelona, SpainHQ recorded Sep 17, 2026	51-200	50 contacts →
	Exact match “Spacewell Energy is a cloud-based Energy Intelligence Platform, trusted by over organisations across 35+ countries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Iberastur Ingeniería	Exact match	Avilés, SpainHQ recorded Sep 17, 2026	51-200	48 contacts →
	Exact match “Iberastur es una empresa especializada en ingeniería industrial, reconocida por ofrecer soluciones técnicas avanzadas para optimizar la eficiencia y el rendimiento de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Boquet	Exact match	Mataró, SpainHQ recorded Sep 17, 2026	51-200	48 contacts →
	Exact match “4th generation family business founded in 1904.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Konery	Exact match	Murcia, SpainHQ recorded Sep 17, 2026	51-200	47 contacts →
	Exact match “Somos una ingeniería cuya misión es la mejora de la eficiencia energética e implantación de energías renovables como vía para cuidar el medio ambiente y mejorar la competitividad…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Solideo ECO Systems	Exact match	Sant Cugat Del Vallès, SpainHQ recorded Sep 17, 2026	51-200	44 contacts →
	Exact match “We are an engineering and consulting company specialised in solar energy and energy efficiency.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Cambioenergetico	Exact match	Coria, SpainHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “Especialistas en ahorro energético y eficiencia energética.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Neton Power	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	11-50	41 contacts →
	Exact match “NetOn Power offers end-to-end industrial self-consumption solutions, with no upfront economic investmentfrom the client and no interference with existing facilities, while…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Balantia By Iberdrola	Exact match	Palma De Mallorca, SpainHQ recorded Sep 17, 2026	11-50	41 contacts →
	Exact match “BALANTIA develops turnkey projects and a wide variety of energy services to achieve energy optimization.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Linkener	Exact match	Valencia/valència, SpainHQ recorded Sep 17, 2026	11-50	39 contacts →
	Exact match “Linkener es el Software de Gestión y Eficiencia Energética para asesores, consultoras y empresa final más avanzado del mercado.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Montajes Eléctricos García	Exact match	Zaragoza, SpainHQ recorded Sep 17, 2026	201-500	38 contacts →
	Exact match “En MEG trabajamos con energía para aportar soluciones energéticas eficientes a nuestros clientes.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Grupo Emececuadrado	Exact match	Badajoz, SpainHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “Emececuadrado es una de las principales compañías del sector energético, especializada en el asesoramiento y la optimización de recursos energéticos para empresas, organismos…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Naturelek Energía E Ingeniería	Exact match	Derio, SpainHQ recorded Sep 17, 2026	51-200	30 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 · Sep 17, 2026 · View company records in RevenueBase
25	Ge&pe	Exact match	Seville, SpainHQ recorded Sep 17, 2026	11-50	30 contacts →
	Exact match “GE & PE was created in 1983 with the purpose of covering the needs and increasingly complex management and efficiency tasks related to the supply and consumption of energy by…” Recorded in the RevenueBase company graph · Sep 17, 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 “industrial energy efficiency firms”. 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 839 industrial energy efficiency firms based in Spain

See the full list, filter by size, metro and specialty, and access 694 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial energy efficiency firms based in Spain at a glance

As of Sep 17, 2026

10.0%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

16.2%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

533

11-50

236

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 839 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 “industrial energy efficiency firms” 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 694 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 September 17, 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.

Industrial energy efficiency firms by metro

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

How many industrial energy efficiency firms are there based in Spain?

RevenueBase identified 839 company matches for industrial energy efficiency firms associated with Spain as of September 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?

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

Which city has the most industrial energy efficiency firms?

Madrid leads with 136 company records, followed by Barcelona (70) and Valencia (34).

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 694 professional contacts with verified work emails tracked across these 839 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 September 17, 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.