Company lists · Data refreshed September 2026

Top 25 Renewable energy IT service providers based in Madrid, Spain

Name: Renewable energy IT service providers based in Madrid, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 323 companies tracked

RevenueBase identified 323 renewable energy IT service providers headquartered in Madrid, Spain as of September 2026 and tracks 10,370 professional contacts across them, including 929 with verified work emails. Madrid is the largest hub.

This list covers renewable energy IT service providers headquartered in Madrid, 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 17, 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 17, 2026 86% judged on-target in blind review

323Companies

10,370Contacts tracked

929Verified emails

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The 25 largest renewable energy IT service providers based in Madrid, Spain

Ranked by team size

Top 25 of 323 renewable energy IT service providers based in Madrid, Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy IT service providers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ZENER	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	5,001-10,000	1,207 contacts →
	Indirect evidence “En Zener crecemos acelerando el crecimiento de nuestros clientes.” Source: RevenueBase Database · checked Sep 17, 2026
2	IGNIS	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	533 contacts →
	Partial evidence “We are a vertically integrated energy company and offer tailored solutions for large consumers and for new energy demands, such as data centers.” Source: RevenueBase Database · checked Sep 17, 2026
3	Aubay Spain	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	5,001-10,000	430 contacts →
	Indirect evidence “Aubay es una empresa de consultoría y servicios informáticos fundada en 1998 en Francia.” Source: RevenueBase Database · checked Sep 17, 2026
4	Fotowatio Renewable Ventures FRV	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	339 contacts →
	Strong evidence “We are world leaders in providing comprehensive renewable energy solutions.” Source: RevenueBase Database · checked Sep 17, 2026
5	Sólida	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	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 17, 2026
6	ACISA	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	232 contacts →
	Indirect evidence “Elevate your expectations with ACISA, a proud member of the prestigious Aldesa Group, Spain's construction titan.” Source: RevenueBase Database · checked Sep 17, 2026
7	Corus Consulting	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	203 contacts →
	Indirect evidence “Corus es una consultora tecnológica y de negocio con más de 20 años de experiencia en el sector, con más de 400 profesionales trabajando en proyectos nacionales e internacionales…” Source: RevenueBase Database · checked Sep 17, 2026
8	Elawan Energy	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	189 contacts →
	Partial evidence “With more than 200 employees and a growing workforce, Elawan Energy provides integrated solutions across the clean energy lifecycle, from the promotion, development, and…” Source: RevenueBase Database · checked Sep 17, 2026
9	MAI Group	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	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 17, 2026
10	Meteologica	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	150 contacts →
	Partial evidence “Wind and solar power forecasts for renewable assets.” Source: RevenueBase Database · checked Sep 17, 2026
11	Tilseco Energy Group	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	125 contacts →
	Partial evidence “Más de 15 años comprometidos con el medio ambiente y el desarrollo sostenible, somos especialistas en ejecución eléctrica, energías renovables y mantenimiento integral” Source: RevenueBase Database · checked Sep 17, 2026
12	Contigo Energía	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	110 contacts →
	Partial evidence “En Contigo Energía tenemos la vocación de acompañar a nuestros clientes en la transición hacia un futuro energético más responsable con el medio ambiente y por eso solo ofrecemos…” Source: RevenueBase Database · checked Sep 17, 2026
13	Alcorce Telecomunicaciones SL	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	107 contacts →
	Indirect evidence “Cada día nos esforzamos por transformar y optimizar organizaciones mediante la implementación de soluciones tecnológicas seguras, eficientes y vanguardistas, evolucionamos contigo…” Source: RevenueBase Database · checked Sep 17, 2026
14	Imenergy Power Plants S.L	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	103 contacts →
	Partial evidence “IMENERGY Power Plants S.L.(IMENERGY) es una compañía especializada en proyectos de generación de energía, principalmente de fuentes renovables.” Source: RevenueBase Database · checked Sep 17, 2026
15	POWEN	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	103 contacts →
	Partial 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 17, 2026
16	Consultia IT	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	80 contacts →
	Partial evidence “Consultia IT is an expert team within Linkroad, focused on pragmatic execution across strategy, operations and technology.” Source: RevenueBase Database · checked Sep 17, 2026
17	Dinsa NEW Technologies NEW Services NEW Ways	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	77 contacts →
	Indirect evidence “Desde sus inicios en el año 1977, DINSA ha sido y es una referencia en el sector de las tecnologías, llegando a alcanzar los primeros puestos en distribución y prestación de…” Source: RevenueBase Database · checked Sep 17, 2026
18	PSS Tecnologias DE LA Informacion	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	501-1,000	77 contacts →
	Indirect evidence “PSS Tecnologías de la Información, es un grupo empresarial fundado en 1995 por un equipo de profesionales relacionados con el mundo de los servicios informáticos y con amplia…” Source: RevenueBase Database · checked Sep 17, 2026
19	Green Eagle Solutions	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	76 contacts →
	Strong evidence “Green Eagle Solutions is accelerating the green energy transition by enabling fully autonomous renewable energy operations.” Source: RevenueBase Database · checked Sep 17, 2026
20	Arena. Financial Tech	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	64 contacts →
	Indirect evidence “ARENA Consulting es una empresa especializada en Tecnologías de la Información, que ofrece servicios de Consultoría, Desarrollo de Aplicaciones, Soporte y Administración de…” Source: RevenueBase Database · checked Sep 17, 2026
21	Sferaone	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	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 17, 2026
22	Bluetree Group	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	60 contacts →
	Strong evidence “Helping investors and energy companies maximise renewable asset performance while keeping risk under control.” Source: RevenueBase Database · checked Sep 17, 2026
23	Grupo Onetec	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	57 contacts →
	Indirect evidence “At Grupo Onetec we are specialists in digital solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Uniway	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	55 contacts →
	Indirect evidence “Fundada en el año por un equipo de directivos con consolidada experiencia en el sector.” Source: RevenueBase Database · checked Sep 17, 2026
25	Gnera Energia	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	52 contacts →
	Partial evidence “The GNERA group was created to participate in the transition towards a new energy model, assuming the dual mission of integrating new energy sources and new technology, while…” Source: RevenueBase Database · checked Sep 17, 2026

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: renewable energy IT service providers. 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 renewable energy IT service providers.
Partial evidence: Its own public description names part of renewable energy IT service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy IT service providers. 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 25 of 323 renewable energy IT service providers based in Madrid, Spain

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Renewable energy IT service providers based in Madrid, Spain at a glance

As of Sep 17, 2026

9.0%Verified-email coverage

32.1Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

146

11-50

104

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 323 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 renewable energy IT service providers, 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 Madrid, Spain whose own description of what they do matches “renewable energy IT service providers”. 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 renewable energy IT service providers), 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 renewable energy IT service providers, and records with no verified work email. Companies headquartered outside Madrid 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, 929 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 17, 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 IT service providers by metro in Spain

Renewable energy IT service providers in Madrid323
Renewable energy IT service providers in Barcelona102
Renewable energy IT service providers in Valencia56
Renewable energy IT service providers in Sevilla53
Renewable energy IT service providers in Zaragoza33
Renewable energy IT service providers in Murcia31
Renewable energy IT service providers in Malaga27

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 renewable energy IT service providers, 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 renewable energy IT service providers are there based in Madrid, Spain?

RevenueBase identified 323 renewable energy IT service providers headquartered in Madrid, 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?

ZENER, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most renewable energy IT service providers?

Madrid leads with 323 headquartered companies, followed by Barcelona (102) and Valencia (56).

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 929 verified decision-maker contacts tracked across these 323 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 17, 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.