Company lists · Data refreshed September 2026

Top 25 Renewable energy maintenance companies based in Spain

Name: Renewable energy maintenance companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 400 companies tracked

RevenueBase identified 400 renewable energy maintenance companies headquartered in Spain as of September 2026 and tracks 7,206 professional contacts across them, including 568 with verified work emails. Madrid is the largest hub.

This list covers renewable energy maintenance 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 17, 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 17, 2026 86% judged on-target in blind review

400Companies

7,206Contacts tracked

568Verified emails

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The 25 largest renewable energy maintenance companies based in Spain

Ranked by team size

Top 25 of 400 renewable energy maintenance companies based in Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy maintenance 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	GES	Indirect evidence	Zamudio, SpainHQ checked Sep 17, 2026	501-1,000	702 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
2	IGNIS	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	533 contacts →
	Partial evidence “We are a vertically integrated energy company and offer tailored solutions for large consumers and for new energy demands, such as data centers.” Source: RevenueBase Database · checked Sep 17, 2026
3	Tetrace	Indirect evidence	Pamplona, SpainHQ checked Sep 17, 2026	501-1,000	441 contacts →
	Indirect evidence “TETRACE es un Grupo Empresarial dedicado a ingeniería, construcción y mantenimiento de activos renovables, constituido en 2010.” Source: RevenueBase Database · checked Sep 17, 2026
4	Moncobra	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	292 contacts →
	Indirect evidence “Empresa de referencia del Grupo Cobra especializada en diseño, ingeniería, instalaciones y montajes mecánicos y eléctricos y mantenimiento industrial.” Source: RevenueBase Database · checked Sep 17, 2026
5	Resgreen Europe SL	Partial evidence	Alcorcón, SpainHQ checked Sep 17, 2026	201-500	253 contacts →
	Partial evidence “Nacemos en enero de 2014 con vocación de ser un referente en el desarrollo de las áreas de servicios de empresas de energía renovable a nivel nacional e internacional.” Source: RevenueBase Database · checked Sep 17, 2026
6	Solarprofit	Partial evidence	Llinars Del Vallès, SpainHQ checked Sep 17, 2026	501-1,000	199 contacts →
	Partial evidence “SolarProfit es la compañía líder especializada en energías renovables, como energía solar fotovoltaica y sistemas de aerotermia.” Source: RevenueBase Database · checked Sep 17, 2026
7	Lowind	Indirect evidence	Huarte, SpainHQ checked Sep 17, 2026	51-200	199 contacts →
	Indirect evidence “Somos una compañía especializada en instalación y mantenimiento de aerogeneradores, plantas fotovoltáicas e instalaciones eléctricas en edificios y plantas industriales.” Source: RevenueBase Database · checked Sep 17, 2026
8	Rioglass	Strong evidence	Mieres, SpainHQ checked Sep 17, 2026	501-1,000	155 contacts →
	Strong evidence “Rioglass Solar is an international renewable energy company with more than 15 years of experience in the solar power industry.” Source: RevenueBase Database · checked Sep 17, 2026
9	Cansol Energy Solutions	Partial evidence	Granada, SpainHQ checked Sep 17, 2026	51-200	151 contacts →
	Partial evidence “CANSOL ENERGY SOLUTIONS, construyendo un futuro sostenible.” Source: RevenueBase Database · checked Sep 17, 2026
10	Altertec	Indirect evidence	Valladolid, SpainHQ checked Sep 17, 2026	201-500	150 contacts →
	Indirect evidence “Altertec es una empresa líder de mantenimiento integral del sector eólico que nace en 2004 con el objetivo de dar respuestas a las necesidades del sector.” Source: RevenueBase Database · checked Sep 17, 2026
11	Tilseco Energy Group	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	125 contacts →
	Partial evidence “Más de 15 años comprometidos con el medio ambiente y el desarrollo sostenible, somos especialistas en ejecución eléctrica, energías renovables y mantenimiento integral” Source: RevenueBase Database · checked Sep 17, 2026
12	Comantur, S.L	Indirect evidence	Cárcar, SpainHQ checked Sep 17, 2026	51-200	110 contacts →
	Indirect evidence “Somos una compañía especializada en el mantenimiento de aerogeneradores con una experiencia de casi 20 años trabajando en el sector”.” Source: RevenueBase Database · checked Sep 17, 2026
13	ATM España	Indirect evidence	Gijón, SpainHQ checked Sep 17, 2026	201-500	65 contacts →
	Indirect evidence “Asistencia Total en Mantenimiento España S.L.U.” Source: RevenueBase Database · checked Sep 17, 2026
14	Arena Green Power	Strong evidence	Seville, SpainHQ checked Sep 17, 2026	51-200	61 contacts →
	Strong evidence “ARENA Green Power is an independent Renewable Energy company focused in the Development, Construction and Operation of proprietary projects and also in providing turnkey…” Source: RevenueBase Database · checked Sep 17, 2026
15	IASOL	Partial evidence	Zaragoza, SpainHQ checked Sep 17, 2026	51-200	54 contacts →
	Partial evidence “Ingeniería y Aplicaciones Solares 2005 Zaragoza, S.L.(IASOL) es una empresa líder en Aragón en el desarrollo de energías limpias, que trabaja por el desarrollo sostenible y…” Source: RevenueBase Database · checked Sep 17, 2026
16	Bester	Partial evidence	Sevilla, SpainHQ checked Sep 17, 2026	201-500	53 contacts →
	Partial evidence “Bester Generación es una empresa que actúa en el sector de las energías renovables (Fotovoltaica, Termosolar, Eólica, Biomasa, Hidráulica y Cogeneración), ofreciendo al cliente…” Source: RevenueBase Database · checked Sep 17, 2026
17	Plasfoc S.A.U	Partial evidence	Santa Coloma De Queralt, SpainHQ checked Sep 17, 2026	201-500	52 contacts →
	Partial evidence “Energías Renovables y Movilidad - Instalación y Mantenimiento.” Source: RevenueBase Database · checked Sep 17, 2026
18	Greening Energy España	Partial evidence	Granada, SpainHQ checked Sep 17, 2026	51-200	45 contacts →
	Partial evidence “Lidera el cambio a la energía 100% renovable.” Source: RevenueBase Database · checked Sep 17, 2026
19	Progressum Energy Developments	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect evidence “Progressum was born in London in October 2012 based on values of excellence and professionalism with the aim of being a ‘Tailor Made’ company for those who wanted to develop and…” Source: RevenueBase Database · checked Sep 17, 2026
20	Abalados	Partial evidence	Sevilla, SpainHQ checked Sep 17, 2026	11-50	38 contacts →
	Partial evidence “aBalados es una empresa con una amplia trayectoria en las energías renovables.” Source: RevenueBase Database · checked Sep 17, 2026
21	4fores	Strong evidence	Zaragoza, SpainHQ checked Sep 17, 2026	11-50	37 contacts →
	Strong evidence “4fores is fast-growing applied-R&D, field-testing and power electronics company working in the Renewable Energies sector (Wind Energy, Photovoltaics and CHP plants) providing to…” Source: RevenueBase Database · checked Sep 17, 2026
22	Alter Enersun, SA	Partial evidence	Badajoz, SpainHQ checked Sep 17, 2026	11-50	37 contacts →
	Partial evidence “Alter Enersun fue fundada en 2009, somos una de las empresas de referencia en el sector de las energías renovables, específicamente en la producción de energía fotovoltaica…” Source: RevenueBase Database · checked Sep 17, 2026
23	Control Vertical	Indirect evidence	Ferrol, SpainHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Fundada en 2007, Control Vertical S.” Source: RevenueBase Database · checked Sep 17, 2026
24	Air-Ron	Indirect evidence	Caparroso, SpainHQ checked Sep 17, 2026	51-200	35 contacts →
	Indirect evidence “Mas de 20 años de experiencia en el sector eólico.” Source: RevenueBase Database · checked Sep 17, 2026
25	SM Advance Energy	Partial evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “Empresa netamente canaria en el sector de la Energía Solar Fotovoltáica - Energías Renovables.” Source: RevenueBase Database · checked Sep 17, 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: renewable energy maintenance 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 renewable energy maintenance companies.
Partial evidence: Its own public description names part of renewable energy maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy maintenance 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 400 renewable energy maintenance companies based in Spain

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Renewable energy maintenance companies based in Spain at a glance

As of Sep 17, 2026

7.9%Verified-email coverage

18.0Average contacts per company

11-50Median size (employees)

8.2%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

165

11-50

166

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 400 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 renewable energy maintenance 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 “renewable energy maintenance 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 renewable energy maintenance 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 renewable energy maintenance 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, 568 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 17, 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.

Renewable energy maintenance companies by metro

Renewable energy maintenance companies in Madrid33

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 renewable energy maintenance 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 renewable energy maintenance companies are there based in Spain?

RevenueBase identified 400 renewable energy maintenance 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?

GES, headquartered in Zamudio, tops this list with the largest team on record.

Which city has the most renewable energy maintenance companies?

Madrid leads with 33 headquartered companies, followed by Sevilla (14) and Barcelona (9).

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 568 verified decision-maker contacts tracked across these 400 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 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 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.