Company lists · Data refreshed September 2026

Top 25 Energy storage system companies based in Spain

Name: Energy storage system 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 90 companies tracked

RevenueBase identified 90 energy storage system companies headquartered in Spain as of September 2026 and tracks 1,091 professional contacts across them, including 234 with verified work emails. Madrid is the largest hub.

This list covers energy storage system 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

90Companies

1,091Contacts tracked

234Verified emails

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The 25 largest energy storage system companies based in Spain

Ranked by team size

Top 25 of 90 energy storage system 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 storage system 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	CIC Energigune	Strong evidence	Vitoria, SpainHQ checked Sep 16, 2026	201-500	204 contacts →
	Strong evidence “CIC energiGUNE, a member of the Basque Research & Technology Alliance- BRTA, is a benchmark research center in Europe in the field of electrochemical and thermal energy storage.” Source: RevenueBase Database · checked Sep 16, 2026
2	Capital Energy	Partial evidence	Pozuelo De Alarcón, SpainHQ checked Sep 16, 2026	201-500	203 contacts →
	Partial evidence “Somos una compañía española con más de 20 años en el sector energético.” Source: RevenueBase Database · checked Sep 16, 2026
3	Hesstec Hybrid Energy Storage Solutions LTD	Strong evidence	Paterna, SpainHQ checked Sep 16, 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 16, 2026
4	Ampere Energy	Partial evidence	Puzol, SpainHQ checked Sep 16, 2026	51-200	56 contacts →
	Partial evidence “Welcome to the new energy model.” Source: RevenueBase Database · checked Sep 16, 2026
5	Cegasa Energía, S.L.U	Strong evidence	Miñano - Vitoria, SpainHQ checked Sep 16, 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 16, 2026
6	Beeplanet Factory	Strong evidence	Orkoien, SpainHQ checked Sep 16, 2026	11-50	41 contacts →
	Strong evidence “At BeePlanet Factory, we offer sustainable energy storage solutions.” Source: RevenueBase Database · checked Sep 16, 2026
7	Vector Energy	Partial evidence	Santa Perpetua De Mogoda, SpainHQ checked Sep 16, 2026	11-50	36 contacts →
	Partial evidence “Vector Energy es una empresa líder en automatización, control industrial, energías renovables y eficiencia energética con más de 25 años de experiencia.” Source: RevenueBase Database · checked Sep 16, 2026
8	Cellect Energy	Strong evidence	Barcelona, SpainHQ checked Sep 16, 2026	11-50	27 contacts →
	Strong evidence “At Cellect, we focus on supporting the future of utility-scale battery energy storage with our technical and commercial asset management platform.” Source: RevenueBase Database · checked Sep 16, 2026
9	Eft-Systems	Partial evidence	Lasarte, SpainHQ checked Sep 16, 2026	11-50	21 contacts →
	Partial evidence “The EFT team is committed to the idea of a regenerative and decentralized energy supply and has found the perfect partner for this in the extraordinary and unique large company…” Source: RevenueBase Database · checked Sep 16, 2026
10	Alterity	Indirect evidence	Zamudio, SpainHQ checked Sep 16, 2026	11-50	20 contacts →
	Indirect evidence “Alterity is a technology company specialized in the design and manufacture of lithium batteries in various sectors, such as industrial and urban electric mobility.” Source: RevenueBase Database · checked Sep 16, 2026
11	Sonnen Spain	Partial evidence	Olot, SpainHQ checked Sep 16, 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 16, 2026
12	RPOW	Strong evidence	Sevilla, SpainHQ checked Sep 16, 2026	11-50	18 contacts →
	Strong evidence “RPow is a consultancy and engineering firm whose mission is to develop customized solutions for a greener future (Net Zero) through the use of long-duration energy storage systems.” Source: RevenueBase Database · checked Sep 16, 2026
13	Soleme SL	Partial evidence	Móstoles, SpainHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “En Soleme SL somos distribuidor y partner especializado en soluciones fotovoltaicas integrales, con foco en sistemas de acumulación de energía para proyectos residenciales e…” Source: RevenueBase Database · checked Sep 16, 2026
14	Trinity Energy Storage	Strong evidence	Madrid, SpainHQ checked Sep 16, 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 16, 2026
15	Pebblex	Partial evidence	Madrid, SpainHQ checked Sep 16, 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 16, 2026
16	Abervian Product Engineering	Partial evidence	Castellón De La Plana, SpainHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “Diseñamos y desarrollamos sistemas eléctricos avanzados para electrificación y almacenamiento energético.” Source: RevenueBase Database · checked Sep 16, 2026
17	Sailh2	Partial evidence	Sevilla, SpainHQ checked Sep 16, 2026	1-10	11 contacts →
	Partial evidence “Soluciones globales para el almacenamiento y gestión de energías renovables, en particular, mediante la producción, almacenamiento y distribución de hidrógeno verde.” Source: RevenueBase Database · checked Sep 16, 2026
18	Solcam Energia	Partial evidence	Riudoms, SpainHQ checked Sep 16, 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 16, 2026
19	Thermophoton	Strong evidence	Madrid, SpainHQ checked Sep 16, 2026	1-10	10 contacts →
	Strong evidence “Energy Storage & Dispatchable Heat and Power Solutions” Source: RevenueBase Database · checked Sep 16, 2026
20	Silbat Energy Storage Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	1-10	10 contacts →
	Indirect evidence “We are developing a long-duration (100hrs) battery based on the latent heat of fusion of silicon.” Source: RevenueBase Database · checked Sep 16, 2026
21	Infitech Ingenieria SL	Indirect evidence	Gijón, SpainHQ checked Sep 16, 2026	1-10	7 contacts →
	Indirect evidence “Trabajamos con distribuidores, fabricantes, EPCs, integradores y modelos PPA que necesitan algo más que instalar tecnología: necesitan que cada proyecto sea rentable, defendible y…” Source: RevenueBase Database · checked Sep 16, 2026
22	Hydraredox	Partial evidence	Cuarte De Huerva (zaragoza), SpainHQ checked Sep 16, 2026	1-10	7 contacts →
	Partial evidence “HydraRedox es una empresa española, fabricante e integradora de sistemas de almacenamiento de energía eléctrica, con tecnología propia flujo redox de vanadio (VRFB) o con…” Source: RevenueBase Database · checked Sep 16, 2026
23	Second Life Battery S.L	Indirect evidence	Ajalvir, SpainHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence “Baterías de Litio de segunda vida.” Source: RevenueBase Database · checked Sep 16, 2026
24	Kuantica Hybrid Solar Technologies	Partial evidence	Arganda Del Rey, SpainHQ checked Sep 16, 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 16, 2026
25	E22 Energy Storage Solutions	Strong evidence	Alcobendas, SpainHQ checked Sep 16, 2026	11-50	3 contacts →
	Strong evidence “E22 Energy Storage Solutions is a company specialized in the definition and supply of energy storage solutions, and more specifically in the manufacturing of vanadium flow…” 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 storage system 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 storage system companies.
Partial evidence: Its own public description names part of energy storage system companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy storage system 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 90 energy storage system companies based in Spain

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Energy storage system companies based in Spain at a glance

As of Sep 16, 2026

21.4%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

26.7%Largest-city concentration · Madrid

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 90 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 system 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 storage system 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 storage system 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 storage system 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, 234 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.

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 system 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 storage system companies are there based in Spain?

RevenueBase identified 90 energy storage system 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?

CIC Energigune, headquartered in Vitoria, tops this list with the largest team on record.

Which city has the most energy storage system companies?

Madrid leads with 24 headquartered companies, followed by Barcelona (10) 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 234 verified decision-maker contacts tracked across these 90 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.