Company lists · Data refreshed September 2026
Top 24 Clean energy law firms based in Spain
RevenueBase identified 273 clean energy law firms headquartered in Spain as of September 2026 and tracks 3,306 professional contacts across them, including 558 with verified work emails. Madrid is the largest hub.
This list covers clean energy law 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 27, 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.
The 24 largest clean energy law firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 538 contacts → | ||||
Partial evidence “GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 151 contacts → | ||||
Partial evidence “CANSOL ENERGY SOLUTIONS, construyendo un futuro sostenible.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 113 contacts → | ||||
Partial evidence “Somos un equipo de profesionales especializados en energías renovables.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 54 contacts → | ||||
Partial evidence “Ingeniería y Aplicaciones Solares 2005 Zaragoza, S.L.(IASOL) es una empresa líder en Aragón en el desarrollo de energías limpias, que trabaja por el desarrollo sostenible y…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 44 contacts → | ||||
Partial evidence “We are an engineering and consulting company specialised in solar energy and energy efficiency.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 28 contacts → | ||||
Indirect evidence “DRIZA has emerged to address new renewable opportunities by joining the design, development and structuring capabilities of its partner companies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23 contacts → | ||||
Partial evidence “ATALAYA GENERACION is a renewable energy development company focused on large scale projects in the Spanish solar and wind sectors.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Partial evidence “EMBERIZA es la consultoría ambiental especialista en tramitación de infraestructuras de energías renovables.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 16 contacts → | ||||
Partial evidence “Over 20 years of experience Solventa6 is an engineering company specializing in renewable energies, founded in 2001, dedicated to providing services to businesses, individuals…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 15 contacts → | ||||
Partial evidence “Albitel provides the widest portfolio of services to support Renewable Energy projects worldwide, from project development to owner's advisory.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 14 contacts → | ||||
Partial evidence “Energía Aljaval is a Spanish developer and investor in renewable energies, focusing on photovoltaic, wind and biomass.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Indirect evidence “SCHLAICH DAUSS is the result of a merger that was born true to the shared origins of the two firms: work well done, with a vocation for service, and legal advice focused on…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Strong evidence “Verdia Legal is a leading energy law consulting firm, offering its clients high-level specialized legal services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Partial evidence “Ekilor Energías Renovables es una ingeniería especializada en la Eficiencia Energética y las Energías Renovables aplicadas a la Industria.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 13 contacts → | ||||
Partial evidence “Somos un despacho de abogados, fundado en el año 1996, dedicado exclusivamente al Derecho público y especializado en asuntos relativos al medio ambiente, urbanismo, energía…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 contacts → | ||||
Indirect evidence “Somos una empresa consultora del ámbito de la ingeniería y el desarrollo de proyectos integrales, especializada en el diseño y cálculo de instalaciones en edificaciones singulares.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 contacts → | ||||
Partial evidence “En SolarYou trabajamos para acelerar la transición hacia un modelo energético más sostenible, haciendo que el acceso a la energía solar sea sencillo, eficiente y sin…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Partial evidence “Somos una Ingeniería que trabaja en proyectos de energía limpia y sostenible con más de 25 años de experiencia.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Partial evidence “Somos una empresa especializada en ENERGÍAS RENOVABLES comprometida con el MEDIO AMBIENTE y el DESARROLLO SOSTENIBLE.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Partial evidence “Fe Energy se estableció en 2019, con el objetivo principal de contribuir en la optimización de la industria energética mediante la participación activa en el diseño, desarrollo…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Partial evidence “ECOVAT is a consulting engineering firm specialized in renewable energies projects with one mission: to provide integrated engineering management services, in renewable energy…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Partial evidence “Enercapital es una compañía especializada en el desarrollo integral de proyectos de energías renovables.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Partial evidence “Somos una #ingeniería eléctrica especializada en las energías renovables, la #monitorización de instalaciones, así como el asesoramiento especializado de sistemas de #eficiencia…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Partial evidence “Fotovol som una empresa d’enginyeria i instal·lació de sistemes de generació d’energia fotovoltaica dedicada a la projecció i execució d’instal·lacions sobre cobertes, sòl i…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
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: clean energy law 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 clean energy law firms.
- Partial evidence
- Its own public description names part of clean energy law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name clean energy law 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 24 of 273 clean energy law firms based in Spain
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Clean energy law firms based in Spain at a glance
As of Sep 27, 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 273 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 clean energy law 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 “clean energy law 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 clean energy law 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 clean energy law 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, 558 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 27, 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 clean energy law 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 clean energy law firms are there based in Spain?
RevenueBase identified 273 clean energy law 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?
Grupotec, headquartered in Valencia, tops this list with the largest team on record.
Which city has the most clean energy law firms?
Madrid leads with 48 headquartered companies, followed by Barcelona (18) and Valencia (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 558 verified decision-maker contacts tracked across these 273 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 27, 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.
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