Company lists · Data refreshed September 2026

Top 25 Energy storage investment firms based in Spain

Name: Energy storage investment firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 87 companies tracked

RevenueBase identified 87 energy storage investment firms headquartered in Spain as of September 2026 and tracks 2,791 professional contacts across them, including 518 with verified work emails. Madrid is the largest hub.

This list covers energy storage investment firms 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 28, 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 28, 2026 86% judged on-target in blind review

87Companies

2,791Contacts tracked

518Verified emails

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The 25 largest energy storage investment firms based in Spain

Ranked by team size

Top 25 of 87 energy storage investment firms based in Spain, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy storage investment firms: 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 28, 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 28, 2026
2	Holaluz	Strong evidence	Barcelona, SpainHQ checked Sep 28, 2026	201-500	345 contacts →
	Strong evidence “Building the most impactful green energy community in Europe by unleashing the full potential of electrifying energy demand by scaling distributed Solar and Storage.” Source: RevenueBase Database · checked Sep 28, 2026
3	Exus Renewables	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	193 contacts →
	Partial 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 28, 2026
4	Matrix Renewables	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	147 contacts →
	Partial evidence “Matrix Renewables is a global renewable energy platform created and backed by global alternative asset manager TPG and its $31 billion impact-investing platform.” Source: RevenueBase Database · checked Sep 28, 2026
5	Plenium Partners	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	201-500	124 contacts →
	Partial evidence “Founded in 2007, Plenium Partners is an investment company focused on power and sustainable infrastructure in Europe More than 7.5Bn invested to date,+300 employees, 5 countries…” Source: RevenueBase Database · checked Sep 28, 2026
6	Hesstec Hybrid Energy Storage Solutions LTD	Strong evidence	Paterna, SpainHQ checked Sep 28, 2026	11-50	61 contacts →
	Strong evidence “Hybrid Energy Storage Solution Ltd.(hereinafter called HESS Ltd.) is a technological solution provider, pioneer in creating hybrid energy storage solutions (HESS), optimized in…” Source: RevenueBase Database · checked Sep 28, 2026
7	Cegasa Energía, S.L.U	Strong evidence	Miñano - Vitoria, SpainHQ checked Sep 28, 2026	51-200	55 contacts →
	Strong evidence “CEGASA Energía, founded in 1934, is the European leader in designing and manufacturing energy storage solutions.” Source: RevenueBase Database · checked Sep 28, 2026
8	Beeplanet Factory	Strong evidence	Orkoien, SpainHQ checked Sep 28, 2026	11-50	41 contacts →
	Strong evidence “At BeePlanet Factory, we offer sustainable energy storage solutions.” Source: RevenueBase Database · checked Sep 28, 2026
9	Ingenium	Strong evidence	Valencia, SpainHQ checked Sep 28, 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 28, 2026
10	SYDIS	Partial evidence	Albacete, SpainHQ checked Sep 28, 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 28, 2026
11	Hanwha Energy Europe	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “Headquartered in Madrid, Hanwha Energy Europe is a leading player in the renewable energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
12	IGU Energy	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	23 contacts →
	Partial evidence “iGU Energy nace con la vocación de contribuir en la transición energética global y promover una economía descarbonizada.” Source: RevenueBase Database · checked Sep 28, 2026
13	Sonnen Spain	Partial evidence	Olot, SpainHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “La energía limpia y asequible para todos es uno de los mayores desafíos de nuestro tiempo.” Source: RevenueBase Database · checked Sep 28, 2026
14	Green Mind Ventures	Partial evidence	Pozuelo De Alarcón, SpainHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “A platform that integrates vision and execution capabilities with a vast track record in the energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
15	Nara Capital	Partial evidence	Barcelona, SpainHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “NARA is an multi-strategy investment firm with the purpose of making a positive difference in the society and environment.” Source: RevenueBase Database · checked Sep 28, 2026
16	Trinity Energy Storage	Strong evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	12 contacts →
	Strong evidence “Underground storage facilities are strategic infrastructure where energy reserves are kept to balance supply and demand and to meet consumption peaks that may occur throughout the…” Source: RevenueBase Database · checked Sep 28, 2026
17	Pebblex	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “En Pebblex diseñamos y desplegamos sistemas de almacenamiento energético que hacen la transición renovable posible.” Source: RevenueBase Database · checked Sep 28, 2026
18	Solcam Energia	Partial evidence	Riudoms, SpainHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Impulsamos la transición energética del sector industrial con soluciones integrales y de gran escala.” Source: RevenueBase Database · checked Sep 28, 2026
19	Medren	Strong evidence	Madrid, SpainHQ checked Sep 28, 2026	1-10	9 contacts →
	Strong evidence “Mediterranean Renewables SGEIC SA (MedRen) in an Independent investment management firm with a dedicated emphasis on investing within the renewable energy generation and energy…” Source: RevenueBase Database · checked Sep 28, 2026
20	Ethical Power Spain	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Ethical Power Spain is a group company of Ethical Power Group.” Source: RevenueBase Database · checked Sep 28, 2026
21	Frontier Renewables	Strong evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “Frontier Renewables is a global investment management firm focused on investing in renewable energy infrastructure projects to help accelerate the world’s clean energy transition.” Source: RevenueBase Database · checked Sep 28, 2026
22	Elona Capital	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Elona Capital is an investment management company based out in Madrid, Spain.” Source: RevenueBase Database · checked Sep 28, 2026
23	Enagás Emprende	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “Investing and accelerating energy projects to boost energy transition A Corporate Venture Capital that invests and accelerates startups, projects and disruptive technologies to…” Source: RevenueBase Database · checked Sep 28, 2026
24	Kuantica Hybrid Solar Technologies	Partial evidence	Arganda Del Rey, SpainHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “With more than 20-year experience, Kuantica HST (formerly Hybrid Stein Group) has always believe that renewables energies will make a new future.” Source: RevenueBase Database · checked Sep 28, 2026
25	Argo Capital Partners	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “ARGO CAPITAL PARTNERS is an Impact Investing Private Equity firm specialising in the Energy Transition towards a low-carbon economy.” Source: RevenueBase Database · checked Sep 28, 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 storage investment firms. 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 storage investment firms.
Partial evidence: Its own public description names part of energy storage investment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy storage investment firms. 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 87 energy storage investment firms based in Spain

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Energy storage investment firms based in Spain at a glance

As of Sep 28, 2026

18.6%Verified-email coverage

32.1Average contacts per company

11-50Median size (employees)

36.8%Largest-city concentration · Madrid

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 87 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 storage investment firms, 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 storage investment firms”. 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 storage investment firms), 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 storage investment firms, 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, 518 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 28, 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 storage investment firms by metro

Energy storage investment firms in Madrid32

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 storage investment firms, 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 storage investment firms are there based in Spain?

RevenueBase identified 87 energy storage investment firms 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 energy storage investment firms?

Madrid leads with 32 headquartered companies, followed by Barcelona (9) and Sevilla (5).

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 518 verified decision-maker contacts tracked across these 87 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 28, 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.