Company lists · Data refreshed September 2026
Top 25 Renewable energy venture capital firms based in Spain
RevenueBase identified 141 renewable energy venture capital firms headquartered in Spain as of September 2026 and tracks 3,980 professional contacts across them, including 926 with verified work emails and 305 with mobile numbers. Madrid is the largest hub.
This list covers renewable energy venture capital 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 25 largest renewable energy venture capital firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | ZelestraIndirect evidence | 929 | |||
“At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | X-ElioStrong evidence | 466 | |||
“X-ELIO: global leader in the development of renewable energy projects.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 147 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 128 | ||||
“Ecoener es una multinacional española especializada en energía renovables, con 37 años de experiencia en el desarrollo de proyectos que buscan una perfecta integración ambiental y…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 87 | ||||
“Greenalia is an independent renewable energy producer.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 83 | ||||
“Diverxia is a global company focused on the development and execution of large-scale renewable projects.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | Univergy SolarPartial evidence | 71 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 60 | ||||
“Helping investors and energy companies maximise renewable asset performance while keeping risk under control.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 38 | ||||
“aBalados es una empresa con una amplia trayectoria en las energías renovables.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 33 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 32 | ||||
“is a company focused on becoming a benchmark in energy generation and the provision of services to guarantee the sustainability of the planet.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 31 | ||||
“Founded in 2022 with offices in Spain & Italy, Five-E invest in companies dedicated to provide Renewable Energy Solutions” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 28 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 | ||||
“DRIZA has emerged to address new renewable opportunities by joining the design, development and structuring capabilities of its partner companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 24 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 23 | ||||
“iGU Energy nace con la vocación de contribuir en la transición energética global y promover una economía descarbonizada.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 18 | ||||
“Altano Energy is an institutional renewables platform, lead by a strong executive team with a combined experience over 150 years in the infrastructure and energy sectors and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 | ||||
“Kira Ventures is an advisory, development and asset management firm that identifies and accelerates new investment opportunities in the transition to a new economic model driven…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Uriel Renovables, S.APartial evidence | 18 | |||
“Uriel Renovables, S.A.(URSA) es una compañía dedicada a la promoción, construcción y explotación de proyectos de energías renovables.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 17 | ||||
“Integralia Energía desarrolla proyectos energéticos de calidad, eficientes y rentables, con la máxima profesionalidad.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 | ||||
“A platform that integrates vision and execution capabilities with a vast track record in the energy sector.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 | ||||
“EnerHi es un gestor global de energías renovables cuya misión es proporcionar energía limpia, accesible y sostenible a las personas.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 | ||||
“Energía Aljaval is a Spanish developer and investor in renewable energies, focusing on photovoltaic, wind and biomass.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Nara CapitalIndirect evidence | 12 | |||
“NARA is an multi-strategy investment firm with the purpose of making a positive difference in the society and environment.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 141 renewable energy venture capital firms based in Spain
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Renewable energy venture capital firms based in Spain at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 venture capital firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 venture capital firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among renewable energy venture capital 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 an evidence 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, 926 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 5, 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 venture capital firms by metro
- Renewable energy venture capital firms in Madrid55
Frequently asked
How many renewable energy venture capital firms are there based in Spain?
RevenueBase identified 141 renewable energy venture capital 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 renewable energy venture capital firms?
Madrid leads with 55 headquartered companies, followed by Barcelona (14) and Sevilla (10).
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 926 verified decision-maker contacts tracked across these 141 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 5, 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 SmartSearch, 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.
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