Company lists · Data refreshed September 2026
Top 24 Solar energy consulting firms based in Spain
RevenueBase identified 1,541 solar energy consulting firms headquartered in Spain as of September 2026 and tracks 13,343 professional contacts across them, including 1,465 with verified work emails. Madrid is the largest hub.
This list covers solar energy consulting 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 29, 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 solar energy consulting 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 502 contacts → | ||||
Partial evidence “REVERGY nace mediante un proyecto de profesionales procedentes de diferentes ámbitos del sector de las energías renovables con el fin de presentar un proyecto marcado por la…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 298 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 295 contacts → | ||||
Strong evidence “Gransolar is a group of vertically integrated companies specialized in photovoltaic solar energy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 214 contacts → | ||||
Partial evidence “DHV Technology manufactures solar panels for space, aeronautical, nautical and automotive applications.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 199 contacts → | ||||
Strong evidence “SolarProfit es la compañía líder especializada en energías renovables, como energía solar fotovoltaica y sistemas de aerotermia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 155 contacts → | ||||
Strong evidence “Rioglass Solar is an international renewable energy company with more than 15 years of experience in the solar power industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 152 contacts → | ||||
Partial evidence “MAI has been in international consultancy for over 25 years driving energy and environmental project around the world, helping to design and plan reliable supply systems based on…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 125 contacts → | ||||
Strong evidence “Somos ESR Energy Solutions y llevamos más de 10 años llevando la energía solar a miles de hogares.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 123 contacts → | ||||
Partial evidence “Barlovento Applus+ is a global consulting, engineering, and testing company with extensive expertise in the wind industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 113 contacts → | ||||
Partial evidence “Somos un equipo de profesionales especializados en energías renovables.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 103 contacts → | ||||
Strong evidence “En POWEN Somos los especialistas en energía solar fotovoltaica para los clientes que desean una alternativa energética basada en el ahorro, respeto por el medio ambiente y el uso…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 98 contacts → | ||||
Partial evidence “AutoSolar es la tienda solar líder en España.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 95 contacts → | ||||
Partial evidence “RÍOS Renovables Group es un grupo empresarial consolidado en el mercado de las energías renovables.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 84 contacts → | ||||
Partial evidence “We are one of the leading energy business consultancies in Spain.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 83 contacts → | ||||
Indirect evidence “Diverxia is a global company focused on the development and execution of large-scale renewable projects.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 81 contacts → | ||||
Partial evidence “NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 63 contacts → | ||||
Strong evidence “IM2 Energía Solar, especialista en soluciones energéticas, realiza proyectos de inversión en energía solar desde 2003, posicionándose actualmente como empresa referente en el…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 61 contacts → | ||||
Partial evidence “SferaOne, parte del Grupo Diggia, es una empresa que realiza actividades de proyección global desde 2002, especializada en la transición Energética desarrollando trabajos de…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 58 contacts → | ||||
Partial evidence “Azigrene es una empresa de servicios de Consultoría e Ingeniería Energética, que desarrolla su actividad en- Reducción del coste: Definición de la mejor estrategia de compra…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 54 contacts → | ||||
Strong 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 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 52 contacts → | ||||
Partial evidence “Apostando por soluciones ecológicas, ofrecemos servicios que proporcionan independencia energética.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 51 contacts → | ||||
Partial evidence “We are disrupting the energy industry to change the world for better.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 48 contacts → | ||||
Partial evidence “Esto es inteligencia solar En Repsol y Movistar hemos unido nuestra experiencia en innovación y tecnología para crear una nueva solución de autoconsumo.” Source: RevenueBase Database · checked Sep 29, 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: solar energy consulting 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 solar energy consulting firms.
- Partial evidence
- Its own public description names part of solar energy consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name solar energy consulting 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 1,541 solar energy consulting firms based in Spain
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Solar energy consulting firms based in Spain at a glance
As of Sep 29, 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 1,541 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 solar energy consulting 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 “solar energy consulting 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 solar energy consulting 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 solar energy consulting 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, 1,465 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 29, 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.
Solar energy consulting firms by metro
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 solar energy consulting 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 solar energy consulting firms are there based in Spain?
RevenueBase identified 1,541 solar energy consulting 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 solar energy consulting firms?
Madrid leads with 237 headquartered companies, followed by Barcelona (96) and Valencia (59).
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 1,465 verified decision-maker contacts tracked across these 1,541 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 29, 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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