Company lists · Data refreshed September 2026

Top 10 Energy storage aggregators based in Spain

RevenueBase identified 34 energy storage aggregators headquartered in Spain as of September 2026 and tracks 325 professional contacts across them, including 75 with verified work emails. Madrid is the largest hub.

This list covers energy storage aggregators 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
34Companies
325Contacts tracked
75Verified emails
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The 10 largest energy storage aggregators based in Spain

Ranked by team size
Top 10 of 34 energy storage aggregators 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 aggregators: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidencePaterna, SpainHQ checked Sep 16, 202611-5061 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
2Partial evidencePuzol, SpainHQ checked Sep 16, 202651-20056 contacts →

Partial evidence

“Welcome to the new energy model.”

Source: RevenueBase Database · checked Sep 16, 2026
3Strong evidenceOrkoien, SpainHQ checked Sep 16, 202611-5041 contacts →

Strong evidence

“At BeePlanet Factory, we offer sustainable energy storage solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceBarcelona, SpainHQ checked Sep 16, 202611-5038 contacts →

Indirect evidence

“Best in class software platform for the operation of demand-response flexibility aggregation.”

Source: RevenueBase Database · checked Sep 16, 2026
5Strong evidenceBarcelona, SpainHQ checked Sep 16, 202611-5027 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
6Strong evidenceMadrid, SpainHQ checked Sep 16, 202611-5012 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
7Partial evidenceMadrid, SpainHQ checked Sep 16, 202611-5012 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
8Strong evidenceMadrid, SpainHQ checked Sep 16, 20261-1010 contacts →

Strong evidence

Energy Storage & Dispatchable Heat and Power Solutions”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceGijón, SpainHQ checked Sep 16, 20261-107 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
10Partial evidenceMadrid, SpainHQ checked Sep 16, 202611-506 contacts →

Partial evidence

“Stemy Energy was created with the mission to reduce the energy bill of end-users, reduce their carbon footprint, and promote a more sustainable energy system.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 10 of 34 energy storage aggregators based in Spain

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Energy storage aggregators based in Spain at a glance

As of Sep 16, 2026
23.1%Verified-email coverage
9.6Average contacts per company
1-10Median size (employees)
29.4%Largest-city concentration · Madrid
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
14
51-200
1

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 34 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 aggregators, 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 aggregators”. 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 aggregators), 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 aggregators, 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, 75 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 aggregators, 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 aggregators are there based in Spain?

RevenueBase identified 34 energy storage aggregators 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?

Hesstec Hybrid Energy Storage Solutions LTD, headquartered in Paterna, tops this list with the largest team on record.

Which city has the most energy storage aggregators?

Madrid leads with 10 headquartered companies, followed by Barcelona (6) and Malaga (2).

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 75 verified decision-maker contacts tracked across these 34 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.