Company lists · Data refreshed September 2026

Top 25 Energy efficiency retrofit companies based in Spain

Name: 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 Sep 16, 2026 471 companies tracked

RevenueBase identified 471 energy efficiency retrofit companies headquartered in Spain as of September 2026 and tracks 2,844 professional contacts across them, including 263 with verified work emails. Madrid is the largest hub.

This list covers energy efficiency retrofit companies 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 16, 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 16, 2026 86% judged on-target in blind review

471Companies

2,844Contacts tracked

263Verified emails

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The 25 largest energy efficiency retrofit companies based in Spain

Ranked by team size

Top 25 of 471 energy efficiency retrofit companies based in Spain, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency retrofit companies: 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	Quantica Renovables	Partial evidence	Bollullos De La Mitación, SpainHQ checked Sep 16, 2026	201-500	162 contacts →
	Partial evidence “QUANTICA Renovables is a company dedicated to providing cost and carbon efficiencies.” Source: RevenueBase Database · checked Sep 16, 2026
2	NESS	Partial evidence	Madrid, SpainHQ checked Sep 16, 2026	11-50	81 contacts →
	Partial evidence “NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.” Source: RevenueBase Database · checked Sep 16, 2026
3	Vivendio Grupo Aconser	Partial evidence	Granada, SpainHQ checked Sep 16, 2026	51-200	73 contacts →
	Partial evidence “En Vivendio, empresa perteneciente a Grupo Aconser, nos dedicamos a la eficiencia y rehabilitación energética.” Source: RevenueBase Database · checked Sep 16, 2026
4	Azigrene Energy Consulting	Partial evidence	Valencia/valència, SpainHQ checked Sep 16, 2026	51-200	58 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
5	Bettergy	Partial evidence	Málaga, SpainHQ checked Sep 16, 2026	11-50	52 contacts →
	Partial evidence “betterenergy Ponemos tus datos energéticos en acción.” Source: RevenueBase Database · checked Sep 16, 2026
6	Cambioenergetico	Partial evidence	Coria, SpainHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “Especialistas en ahorro energético y eficiencia energética.” Source: RevenueBase Database · checked Sep 16, 2026
7	Balantia By Iberdrola	Partial evidence	Palma De Mallorca, SpainHQ checked Sep 16, 2026	11-50	41 contacts →
	Partial evidence “BALANTIA develops turnkey projects and a wide variety of energy services to achieve energy optimization.” Source: RevenueBase Database · checked Sep 16, 2026
8	Naturelek Energía E Ingeniería	Partial evidence	Derio, SpainHQ checked Sep 16, 2026	51-200	30 contacts →
	Partial evidence “Somos una ingeniería y consultora especializada en eficiencia, gestión y transformación energética para empresas, con un enfoque técnico, integral y orientado a resultados.” Source: RevenueBase Database · checked Sep 16, 2026
9	Ge&pe	Strong evidence	Sevilla, SpainHQ checked Sep 16, 2026	11-50	30 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
10	EDA Instalaciones Y Energía S.L	Partial evidence	Badalona, SpainHQ checked Sep 16, 2026	51-200	29 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
11	Enovam	Partial evidence	Palma De Mallorca, SpainHQ checked Sep 16, 2026	11-50	29 contacts →
	Partial evidence “Enovam, ya en su décimo aniversario, es líder en la gestión energética, operando en la actualidad con establecimientos y con participación en +250 proyectos de eficiencia…” Source: RevenueBase Database · checked Sep 16, 2026
12	Inergy	Partial evidence	Barcelona, SpainHQ checked Sep 16, 2026	11-50	29 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
13	Energy Tools	Partial evidence	Olot, SpainHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “A Energy Tools, empresa líder en el mercat, ajudem, de manera ètica i transparent, les empreses amb grans consums energètics a prendre les millors decisions.” Source: RevenueBase Database · checked Sep 16, 2026
14	ZULUX	Indirect evidence	Santa Pola, SpainHQ checked Sep 16, 2026	11-50	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
15	Enertika	Strong evidence	Barcelona, SpainHQ checked Sep 16, 2026	11-50	27 contacts →
	Strong evidence “Enertika is a leading consulting company in the Spanish market about Energy Efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
16	Letter Ingenieros	Strong evidence	Granada, SpainHQ checked Sep 16, 2026	11-50	27 contacts →
	Strong evidence “We offer companies efficient solutions with the best consulting and engineering services in: Energy Management Energy certification and qualification of buildings Energy…” Source: RevenueBase Database · checked Sep 16, 2026
17	Exclusivas Energeticas	Partial evidence	Castellón De La Plana/castelló De La Plana, SpainHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Exclusivas Energéticas es una de las empresas de gestión energética de mayor proyección en este momento, nos respaldan los numerosos casos de éxito que sumamos, una gran…” Source: RevenueBase Database · checked Sep 16, 2026
18	Alisea Esco, S.A	Partial evidence	Madrid, SpainHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “ALISEA es una de las Empresas de Servicios Energéticos pionera en España especializada en promover proyectos de eficiencia energética, por medio del diseño y soluciones para el…” Source: RevenueBase Database · checked Sep 16, 2026
19	Cavo Energías	Partial evidence	Valencia, SpainHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
20	Pavener	Partial evidence	Quart De Poblet, SpainHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “Pavener, servicios energéticos, somos especialistas en energía, incorporamos ingeniería, instalación, y mantenimiento.” Source: RevenueBase Database · checked Sep 16, 2026
21	A3e	Partial evidence	Madrid, SpainHQ checked Sep 16, 2026	1-10	18 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
22	Luzía Energía	Strong evidence	Mairena Del Aljarafe, SpainHQ checked Sep 16, 2026	51-200	16 contacts →
	Strong evidence “Luzía Energía is a company dedicated to saving and energy efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
23	Ahorrenergia	Partial evidence	Madrid, SpainHQ checked Sep 16, 2026	51-200	16 contacts →
	Partial evidence “Ahorrenergía es un grupo formado por profesionales del sector energético, tecnológico y financiero, comprometido con la Eficiencia Energética, Medio Ambiente y Ahorro Sostenible…” Source: RevenueBase Database · checked Sep 16, 2026
24	KW Solutions	Partial evidence	Málaga, SpainHQ checked Sep 16, 2026	11-50	15 contacts →
	Partial evidence “Desarrollamos soluciones de eficiencia energética.” Source: RevenueBase Database · checked Sep 16, 2026
25	Gese Integral DE Servicios Energéticos	Strong evidence	Leioa, SpainHQ checked Sep 16, 2026	11-50	15 contacts →
	Strong evidence “Gese promotes Energy Efficiency investments at Manufacturing and Services companies, integrating the most adequate technology and the Financial Resources that transform Energy…” Source: RevenueBase Database · checked Sep 16, 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: energy efficiency retrofit companies. 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 energy efficiency retrofit companies.
Partial evidence: Its own public description names part of energy efficiency retrofit companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency retrofit companies. 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 471 energy efficiency retrofit companies based in Spain

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Energy efficiency retrofit companies based in Spain at a glance

As of Sep 16, 2026

9.2%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

19.7%Largest-city concentration · Madrid

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

311

11-50

128

51-200

201-500

501-1,000

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 471 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 energy efficiency retrofit companies, 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 “energy efficiency retrofit companies”. 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 energy efficiency retrofit companies), 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 energy efficiency retrofit companies, 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, 263 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 16, 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.

Energy efficiency retrofit companies by metro

Energy efficiency retrofit companies in Madrid93
Energy efficiency retrofit companies in Barcelona36

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 energy efficiency retrofit companies, 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 energy efficiency retrofit companies are there based in Spain?

RevenueBase identified 471 energy efficiency retrofit companies 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?

Quantica Renovables, headquartered in Bollullos De La Mitacion, tops this list with the largest team on record.

Which city has the most energy efficiency retrofit companies?

Madrid leads with 93 headquartered companies, followed by Barcelona (36) and Valencia (16).

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 263 verified decision-maker contacts tracked across these 471 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 16, 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.