Company lists · Data refreshed September 2026
Top 23 Cleantech startups based in Spain
RevenueBase identified 736 company matches for cleantech startups associated with Spain as of September 2026 and tracks 40,850 professional contacts across them, including 5,777 with verified work emails. Madrid is the largest hub.
This list covers company matches for cleantech startups associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 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 23 largest cleantech startups based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 27,028 contacts → | ||||
Exact match “ACCIONA champions a different way of doing business: Business as Unusual, delivering benefits far beyond the corporate realm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 929 contacts → | ||||
Exact match “At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 533 contacts → | ||||
Exact match “We are a vertically integrated energy company and offer tailored solutions for large consumers and for new energy demands, such as data centers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 466 contacts → | ||||
Exact match “X-ELIO: global leader in the development of renewable energy projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 305 contacts → | ||||
Exact match “Solaria Energía y Medio Ambiente is a company dedicated to selling carbon free energy generated by its solar plants.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 298 contacts → | ||||
Exact match “SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 253 contacts → | ||||
Exact match “Nacemos en enero de 2014 con vocación de ser un referente en el desarrollo de las áreas de servicios de empresas de energía renovable a nivel nacional e internacional.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 245 contacts → | ||||
Exact match “Climate change is one of the greatest threats to our planet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 216 contacts → | ||||
Exact match “At RIC Energy, we aspire to change the trajectory of renewable energy and energy efficiency.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 210 contacts → | ||||
Exact match “ID Energy Group is an international corporate group that is dedicated to renewable energy and specialised in solar photovoltaic energy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 208 contacts → | ||||
Exact match “IREC is the Catalonia Institute for Energy Research, Institut de Recerca en Energia de Catalunya.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 205 contacts → | ||||
Exact match “Enerside is a fast-growing, fully integrated solar photovoltaic platform with a global presence and headquarters in Barcelona, Spain.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 199 contacts → | ||||
Exact match “SolarProfit es la compañía líder especializada en energías renovables, como energía solar fotovoltaica y sistemas de aerotermia.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 189 contacts → | ||||
Exact match “With more than 200 employees and a growing workforce, Elawan Energy provides integrated solutions across the clean energy lifecycle, from the promotion, development, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 175 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 158 contacts → | ||||
Exact match “IMDEA Energy Institute was created in 2006 by the Regional Government of Comunidad de Madrid as non-profit Foundation to promote and carry out R&D&i activities to contribute to…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 128 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 113 contacts → | ||||
Exact match “Somos un equipo de profesionales especializados en energías renovables.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 95 contacts → | ||||
Exact match “RÍOS Renovables Group es un grupo empresarial consolidado en el mercado de las energías renovables.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 88 contacts → | ||||
Exact match “We have history, we’re present, creating future” Zaragozá Group is a group that has grown and adapted to the business opportunities that have arisen.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 83 contacts → | ||||
Exact match “Diverxia is a global company focused on the development and execution of large-scale renewable projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 71 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 61 contacts → | ||||
Exact match “ARENA Green Power is an independent Renewable Energy company focused in the Development, Construction and Operation of proprietary projects and also in providing turnkey…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “cleantech startups”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 23 of 736 cleantech startups based in Spain
See the full list, filter by size, metro and specialty, and access 5,777 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cleantech startups based in Spain at a glance
As of Sep 19, 2026Companies by employee count
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 736 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with Spain whose business descriptions match “cleantech startups” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 5,777 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Cleantech startups by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cleantech startups”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cleantech startups are there based in Spain?
RevenueBase identified 736 company matches for cleantech startups associated with Spain as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Acciona tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cleantech startups?
Madrid leads with 145 company records, followed by Barcelona (51) and Seville (35).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,777 professional contacts with verified work emails tracked across these 736 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 736 cleantech startups based in Spain. Start with a free account, no credit card.
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Cleantech startups by geography
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- Cleantech startups based in Vancouver, Canada
- Cleantech startups based in Ahmedabad, India
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- Cleantech startups based in Chennai, India
Browse the directory
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.
More company lists
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- Lists by location
- Lists A-Z
- New lists
- Cleantech startups based in Belo Horizonte, Brazil
- Cleantech startups based in Curitiba, Brazil
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Company intelligence · public preview
Top 23 cleantech startups based in Spain
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 736 matching company records for cleantech startups based in Spain, with 40,850 tracked contacts and 5,777 verified work emails.
This public preview shows 23 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 23 cleantech startups based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Accionaacciona.comHQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 27,028 contacts → |
“ACCIONA champions a different way of doing business: Business as Unusual, delivering benefits far beyond the corporate realm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Zelestrazelestra.energyHQ: SpainReported employees: 501-1,000 | Spain | 501-1,000 | Exact match | 929 contacts → |
“At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  IGNISignis.esHQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 533 contacts → |
“We are a vertically integrated energy company and offer tailored solutions for large consumers and for new energy demands, such as data centers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  X-Eliox-elio.comHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 466 contacts → |
“X-ELIO: global leader in the development of renewable energy projects.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Solaria Energía Y Medio Ambientesolariaenergia.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 305 contacts → |
“Solaria Energía y Medio Ambiente is a company dedicated to selling carbon free energy generated by its solar plants.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Sólidasolida.com.esHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 298 contacts → |
“SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Resgreen Europe SLresgreen.esHQ: Alcorcón, SpainReported employees: 201-500 | Alcorcón, Spain | 201-500 | Exact match | 253 contacts → |
“Nacemos en enero de 2014 con vocación de ser un referente en el desarrollo de las áreas de servicios de empresas de energía renovable a nivel nacional e internacional.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Quintas Energyquintasenergy.com HQ: Seville, SpainReported employees: 201-500 | Seville, Spain | 201-500 | Exact match | 245 contacts → |
“Climate change is one of the greatest threats to our planet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  RIC Energy Groupric.energyHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 216 contacts → |
“At RIC Energy, we aspire to change the trajectory of renewable energy and energy efficiency.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  ID Energy Groupidenergy.groupHQ: Ciudad Real, SpainReported employees: 201-500 | Ciudad Real, Spain | 201-500 | Exact match | 210 contacts → |
“ID Energy Group is an international corporate group that is dedicated to renewable energy and specialised in solar photovoltaic energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | IRECirec.cat HQ: Sant Adrià De Besòs, SpainReported employees: 201-500 | Sant Adrià De Besòs, Spain | 201-500 | Exact match | 208 contacts → |
“IREC is the Catalonia Institute for Energy Research, Institut de Recerca en Energia de Catalunya.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Enerside Energyenerside.comHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 205 contacts → |
“Enerside is a fast-growing, fully integrated solar photovoltaic platform with a global presence and headquarters in Barcelona, Spain.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Solarprofitsolarprofit.esHQ: Llinars Del Vallès, SpainReported employees: 501-1,000 | Llinars Del Vallès, Spain | 501-1,000 | Exact match | 199 contacts → |
“SolarProfit es la compañía líder especializada en energías renovables, como energía solar fotovoltaica y sistemas de aerotermia.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Elawan Energyelawan.comHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 189 contacts → |
“With more than 200 employees and a growing workforce, Elawan Energy provides integrated solutions across the clean energy lifecycle, from the promotion, development, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Greeninggreening-group.comHQ: Granada, SpainReported employees: 501-1,000 | Granada, Spain | 501-1,000 | Exact match | 175 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Imdea Energyenergy.imdea.orgHQ: Móstoles, SpainReported employees: 51-200 | Móstoles, Spain | 51-200 | Exact match | 158 contacts → |
“IMDEA Energy Institute was created in 2006 by the Regional Government of Comunidad de Madrid as non-profit Foundation to promote and carry out R&D&i activities to contribute to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Ecoenerecoener.esHQ: La Coruña, SpainReported employees: 51-200 | La Coruña, Spain | 51-200 | Exact match | 128 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  EAVEeave.esHQ: Sta Cruz De Tenerife, SpainReported employees: 51-200 | Sta Cruz De Tenerife, Spain | 51-200 | Exact match | 113 contacts → |
“Somos un equipo de profesionales especializados en energías renovables.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Ríos Renovablesriosrenovables.comHQ: Fustiñana, SpainReported employees: 201-500 | Fustiñana, Spain | 201-500 | Exact match | 95 contacts → |
“RÍOS Renovables Group es un grupo empresarial consolidado en el mercado de las energías renovables.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Grupo Zaragozágrupozaragoza.comHQ: Valencia, SpainReported employees: 51-200 | Valencia, Spain | 51-200 | Exact match | 88 contacts → |
“We have history, we’re present, creating future” Zaragozá Group is a group that has grown and adapted to the business opportunities that have arisen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Diverxiadiverxia.netHQ: Valencia, SpainReported employees: 51-200 | Valencia, Spain | 51-200 | Exact match | 83 contacts → |
“Diverxia is a global company focused on the development and execution of large-scale renewable projects.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Univergy Solarunivergysolar.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 71 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Arena Green Powerarenapower.comHQ: Seville, SpainReported employees: 51-200 | Seville, Spain | 51-200 | Exact match | 61 contacts → |
“ARENA Green Power is an independent Renewable Energy company focused in the Development, Construction and Operation of proprietary projects and also in providing turnkey…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 736 company matches
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Cleantech startups: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
735 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 736 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Cleantech startups by metro
Questions about this company list
What does Exact match mean for cleantech startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cleantech startups did RevenueBase find based in Spain?
The saved snapshot records 736 matching company records, 40,850 tracked contacts and 5,777 verified emails. The public preview displays 23 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cleantech startups by geography
- Cleantech startups based in Belo Horizonte, Brazil
- Cleantech startups based in Curitiba, Brazil
- Cleantech startups based in Fortaleza, Brazil
- Cleantech startups based in Porto Alegre, Brazil
- Cleantech startups based in Rio De Janeiro, Brazil
- Cleantech startups based in Sao Paulo, Brazil
- Cleantech startups based in Calgary, Canada
- Cleantech startups based in Toronto, Canada
- Cleantech startups based in Vancouver, Canada
- Cleantech startups based in Ahmedabad, India
- Cleantech startups based in Bangalore, India
- Cleantech startups based in Chennai, India
Browse the directory
Cite this list
RevenueBase Data Team. Top 23 cleantech startups based in Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/cleantech-startups/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cleantech startups based in Belo Horizonte, Brazil
- Cleantech startups based in Curitiba, Brazil
- Cleantech startups based in Fortaleza, Brazil
- Cleantech startups based in Porto Alegre, Brazil
- Cleantech startups based in Rio De Janeiro, Brazil
- Cleantech startups based in Sao Paulo, Brazil
Company intelligence · public preview
Top 23 cleantech startups based in Spain
RevenueBase records 736 matching company records for cleantech startups based in Spain, with 40,850 tracked contacts and 5,777 verified work emails.
This public preview shows 23 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 23 cleantech startups based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Accionaacciona.com HQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 27,028 contacts → |
“ACCIONA champions a different way of doing business: Business as Unusual, delivering benefits far beyond the corporate realm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Zelestrazelestra.energy HQ: SpainReported employees: 501-1,000 | Spain | 501-1,000 | Exact match | 929 contacts → |
“At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | IGNISignis.es HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 533 contacts → |
“We are a vertically integrated energy company and offer tailored solutions for large consumers and for new energy demands, such as data centers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | X-Eliox-elio.com HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 466 contacts → |
“X-ELIO: global leader in the development of renewable energy projects.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Solaria Energía Y Medio Ambientesolariaenergia.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 305 contacts → |
“Solaria Energía y Medio Ambiente is a company dedicated to selling carbon free energy generated by its solar plants.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sólidasolida.com.es HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 298 contacts → |
“SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Resgreen Europe SLresgreen.es HQ: Alcorcón, SpainReported employees: 201-500 | Alcorcón, Spain | 201-500 | Exact match | 253 contacts → |
“Nacemos en enero de 2014 con vocación de ser un referente en el desarrollo de las áreas de servicios de empresas de energía renovable a nivel nacional e internacional.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Quintas Energyquintasenergy.com HQ: Seville, SpainReported employees: 201-500 | Seville, Spain | 201-500 | Exact match | 245 contacts → |
“Climate change is one of the greatest threats to our planet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | RIC Energy Groupric.energy HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 216 contacts → |
“At RIC Energy, we aspire to change the trajectory of renewable energy and energy efficiency.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | ID Energy Groupidenergy.group HQ: Ciudad Real, SpainReported employees: 201-500 | Ciudad Real, Spain | 201-500 | Exact match | 210 contacts → |
“ID Energy Group is an international corporate group that is dedicated to renewable energy and specialised in solar photovoltaic energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | IRECirec.cat HQ: Sant Adrià De Besòs, SpainReported employees: 201-500 | Sant Adrià De Besòs, Spain | 201-500 | Exact match | 208 contacts → |
“IREC is the Catalonia Institute for Energy Research, Institut de Recerca en Energia de Catalunya.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Enerside Energyenerside.com HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 205 contacts → |
“Enerside is a fast-growing, fully integrated solar photovoltaic platform with a global presence and headquarters in Barcelona, Spain.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Solarprofitsolarprofit.es HQ: Llinars Del Vallès, SpainReported employees: 501-1,000 | Llinars Del Vallès, Spain | 501-1,000 | Exact match | 199 contacts → |
“SolarProfit es la compañía líder especializada en energías renovables, como energía solar fotovoltaica y sistemas de aerotermia.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Elawan Energyelawan.com HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 189 contacts → |
“With more than 200 employees and a growing workforce, Elawan Energy provides integrated solutions across the clean energy lifecycle, from the promotion, development, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Greeninggreening-group.com HQ: Granada, SpainReported employees: 501-1,000 | Granada, Spain | 501-1,000 | Exact match | 175 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Imdea Energyenergy.imdea.org HQ: Móstoles, SpainReported employees: 51-200 | Móstoles, Spain | 51-200 | Exact match | 158 contacts → |
“IMDEA Energy Institute was created in 2006 by the Regional Government of Comunidad de Madrid as non-profit Foundation to promote and carry out R&D&i activities to contribute to…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ecoenerecoener.es HQ: La Coruña, SpainReported employees: 51-200 | La Coruña, Spain | 51-200 | Exact match | 128 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | EAVEeave.es HQ: Sta Cruz De Tenerife, SpainReported employees: 51-200 | Sta Cruz De Tenerife, Spain | 51-200 | Exact match | 113 contacts → |
“Somos un equipo de profesionales especializados en energías renovables.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Ríos Renovablesriosrenovables.com HQ: Fustiñana, SpainReported employees: 201-500 | Fustiñana, Spain | 201-500 | Exact match | 95 contacts → |
“RÍOS Renovables Group es un grupo empresarial consolidado en el mercado de las energías renovables.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Grupo Zaragozágrupozaragoza.com HQ: Valencia, SpainReported employees: 51-200 | Valencia, Spain | 51-200 | Exact match | 88 contacts → |
“We have history, we’re present, creating future” Zaragozá Group is a group that has grown and adapted to the business opportunities that have arisen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Diverxiadiverxia.net HQ: Valencia, SpainReported employees: 51-200 | Valencia, Spain | 51-200 | Exact match | 83 contacts → |
“Diverxia is a global company focused on the development and execution of large-scale renewable projects.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Univergy Solarunivergysolar.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 71 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Arena Green Powerarenapower.com HQ: Seville, SpainReported employees: 51-200 | Seville, Spain | 51-200 | Exact match | 61 contacts → |
“ARENA Green Power is an independent Renewable Energy company focused in the Development, Construction and Operation of proprietary projects and also in providing turnkey…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 736 company matches
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Cleantech startups: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
735 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 736 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Cleantech startups by metro
Questions about this company list
What does Exact match mean for cleantech startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cleantech startups did RevenueBase find based in Spain?
The saved snapshot records 736 matching company records, 40,850 tracked contacts and 5,777 verified emails. The public preview displays 23 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 23 cleantech startups based in Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/cleantech-startups/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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