Company lists · Data refreshed September 2026

Top 25 Renewable energy for data centers based in Spain

Name: Renewable energy for data centers based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 160 companies tracked

RevenueBase identified 160 renewable energy for data centers headquartered in Spain as of September 2026 and tracks 5,847 professional contacts across them, including 830 with verified work emails. Madrid is the largest hub.

This list covers renewable energy for data centers 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

160Companies

5,847Contacts tracked

830Verified emails

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The 25 largest renewable energy for data centers based in Spain

Ranked by team size

Top 25 of 160 renewable energy for data centers 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 for data centers: 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	Zelestra	Indirect evidence	SpainHQ checked Sep 17, 2026	501-1,000	929 contacts →
	Indirect evidence “At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Source: RevenueBase Database · checked Sep 17, 2026
2	X-Elio	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	466 contacts →
	Strong evidence “X-ELIO: global leader in the development of renewable energy projects.” Source: RevenueBase Database · checked Sep 17, 2026
3	RIC Energy Group	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	216 contacts →
	Strong evidence “At RIC Energy, we aspire to change the trajectory of renewable energy and energy efficiency.” Source: RevenueBase Database · checked Sep 17, 2026
4	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
5	Exus Renewables	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	193 contacts →
	Strong evidence “Exus Renewables Europe is an Energy Solutions Provider active across the full energy value chain, from development and construction to ownership, operations, and third-party asset…” Source: RevenueBase Database · checked Sep 17, 2026
6	Elawan Energy	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	189 contacts →
	Partial evidence “With more than 200 employees and a growing workforce, Elawan Energy provides integrated solutions across the clean energy lifecycle, from the promotion, development, and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Greening	Strong evidence	Granada, SpainHQ checked Sep 17, 2026	501-1,000	175 contacts →
	Strong evidence “Greening is a global, vertically integrated renewable energy company that not only generates and markets its own green energy, but does so through a diversified portfolio of…” Source: RevenueBase Database · checked Sep 17, 2026
8	Diverxia	Partial evidence	Valencia, SpainHQ checked Sep 17, 2026	51-200	83 contacts →
	Partial evidence “Diverxia is a global company focused on the development and execution of large-scale renewable projects.” Source: RevenueBase Database · checked Sep 17, 2026
9	Univergy Solar	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	71 contacts →
	Partial evidence “Univergy Solar es una empresa hispano-japonesa especializada en el desarrollo y construcción de proyectos de energía solar, eólica y de hidrógeno verde, incluyendo soluciones de…” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	Bluetree Group	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	60 contacts →
	Strong evidence “Helping investors and energy companies maximise renewable asset performance while keeping risk under control.” Source: RevenueBase Database · checked Sep 17, 2026
12	Gnera Energia	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	52 contacts →
	Partial evidence “The GNERA group was created to participate in the transition towards a new energy model, assuming the dual mission of integrating new energy sources and new technology, while…” Source: RevenueBase Database · checked Sep 17, 2026
13	Energy Solar Tech	Partial evidence	Las Rozas De Madrid, SpainHQ checked Sep 17, 2026	201-500	51 contacts →
	Partial evidence “We are disrupting the energy industry to change the world for better.” Source: RevenueBase Database · checked Sep 17, 2026
14	Planea Energía	Partial evidence	Albacete, SpainHQ checked Sep 17, 2026	51-200	51 contacts →
	Partial evidence “Somos comercializadora y generadores de energía renovable, ofrecemos propuestas claras, trato directo y servicio a tu medida, sin rodeos ni letra pequeña.” Source: RevenueBase Database · checked Sep 17, 2026
15	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
16	1komma5 ES	Partial evidence	Cerdanyola Del Vallès, SpainHQ checked Sep 17, 2026	51-200	39 contacts →
	Partial evidence “Nuestra visión es hacer que todos podamos vivir de las energías renovables para siempre y gratis.” Source: RevenueBase Database · checked Sep 17, 2026
17	Ingenium	Strong evidence	Valencia, SpainHQ checked Sep 17, 2026	11-50	33 contacts →
	Strong evidence “INGENIUM GROUP is an international energy group specialized in the development and investment in renewable energy projects, with a presence in Italy, Spain, and Germany.” Source: RevenueBase Database · checked Sep 17, 2026
18	SYDIS	Partial evidence	Albacete, SpainHQ checked Sep 17, 2026	51-200	32 contacts →
	Partial evidence “is a company focused on becoming a benchmark in energy generation and the provision of services to guarantee the sustainability of the planet.” Source: RevenueBase Database · checked Sep 17, 2026
19	Logos Energía	Partial evidence	Santander, SpainHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “En LoGOs Energía compartimos contigo la energía que nos mueve a buscar las mejores tarifas y soluciones energéticas.” Source: RevenueBase Database · checked Sep 17, 2026
20	Hanwha Energy Europe	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	30 contacts →
	Strong evidence “Headquartered in Madrid, Hanwha Energy Europe is a leading player in the renewable energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
21	Amda Energía	Partial evidence	Zaragoza, SpainHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Compañía especializada en la promoción, desarrollo, construcción y operación de proyectos de alto valor tecnológico en el campo de las energías renovables, siempre en un marco de…” Source: RevenueBase Database · checked Sep 17, 2026
22	Benbros	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “Benbros nace con la vocación de ser líder en el sector de las energías renovables, ayudando a crear un planeta más sostenible, contribuyendo a la descarbonización del mismo…” Source: RevenueBase Database · checked Sep 17, 2026
23	Atalaya Generacion	Strong evidence	Zaragoza, SpainHQ checked Sep 17, 2026	11-50	23 contacts →
	Strong evidence “ATALAYA GENERACION is a renewable energy development company focused on large scale projects in the Spanish solar and wind sectors.” Source: RevenueBase Database · checked Sep 17, 2026
24	Uriel Renovables, S.A	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	1-10	18 contacts →
	Partial evidence “Uriel Renovables, S.A.(URSA) es una compañía dedicada a la promoción, construcción y explotación de proyectos de energías renovables.” Source: RevenueBase Database · checked Sep 17, 2026
25	Proton Future	Partial evidence	Barberà Del Vallès, SpainHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “Nuestra misión es promover e implementar soluciones energéticas, a través de las nuevas tecnologías y la innovación para impulsar la transición energética mejorando la…” 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 for data centers. 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 for data centers.
Partial evidence: Its own public description names part of renewable energy for data centers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy for data centers. 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 160 renewable energy for data centers based in Spain

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Renewable energy for data centers based in Spain at a glance

As of Sep 17, 2026

14.2%Verified-email coverage

36.5Average contacts per company

11-50Median size (employees)

26.9%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 160 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 for data centers, 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 for data centers”. 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 for data centers), 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 for data centers, 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, 830 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 for data centers by metro

Renewable energy for data centers in Madrid43

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 for data centers, 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 for data centers are there based in Spain?

RevenueBase identified 160 renewable energy for data centers 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?

Zelestra, headquartered in Spain, tops this list with the largest team on record.

Which city has the most renewable energy for data centers?

Madrid leads with 43 headquartered companies, followed by Barcelona (10) and Sevilla (6).

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 830 verified decision-maker contacts tracked across these 160 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.