Company lists · Data refreshed September 2026
Top 23 Energy companies based in Madrid, Spain
RevenueBase lists 96 energy companies based in Madrid, Spain, with 18,668 business contacts and 1,590 email addresses. The directory covers organizations involved in producing, generating, transmitting, distributing, trading, or supplying energy. Across Spain, Madrid is the largest hub for this category.
Energy companies produce, generate, transmit, distribute, trade, or supply energy and related energy products and services. This list covers companies that produce, generate, transmit, distribute, trade, or supply energy, including electricity, fuels, and renewable energy products. Ranked by team size, largest first. Data current as of September 12, 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 23 largest energy companies based in Madrid, Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,646 contacts → | ||||
Strong evidence “Cepsa is a leading international company committed to sustainable mobility and energy with strong technical expertise after more than 90 years of activity.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,185 contacts → | ||||
Strong evidence “Naturgy es un grupo multinacional del sector energético con más de 180 años de historia.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 3 | 774 contacts → | ||||
Strong evidence “Estamos creado una nueva energía en el planeta.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 4 | 533 contacts → | ||||
Strong 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 12, 2026Thanks. The Data Team will review it. | |||||
| 5 | 188 contacts → | ||||
Strong evidence “Fenie Energía es una comercializadora de energía formada por 1.800 empresas instaladoras eléctricas que serán su red comercial.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 6 | 144 contacts → | ||||
Strong evidence “Perteneciente a la división de energía del Grupo Villar Mir, se establece con el objetivo de poner al servicio de otras empresas su experiencia en la optimización de costes…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 7 | 111 contacts → | ||||
Indirect evidence “UFG was established in 1998 and it has been since then committed to the active participation in all the links of the natural gas value chain and in the infrastructure needed to…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 8 | 93 contacts → | ||||
Strong evidence “Bienvenido a CHC Energía.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 9 | 72 contacts → | ||||
Strong evidence “ENSO Energy Environment and Sustainability se dedica al desarrollo, promoción, construcción y operación de plantas de generación eléctrica y térmica.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 10 | 65 contacts → | ||||
Strong evidence “The energy industry is broken: oligopolistic in nature, high and unpredictable prices, highly pollutant and mostly non-digital results in it being the worst rated industry in…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 11 | 51 contacts → | ||||
Indirect evidence “Podo nació en 2016 con un objetivo muy claro: poner al alcance de las personas el mejor servicio y las tarifas más competitivas del sector.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 12 | 48 contacts → | ||||
Strong evidence “MET Energía España es la filial ibérica del grupo MET.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 13 | 42 contacts → | ||||
Strong evidence “Somos Colaborador Oficial de IBERDROLA, grupo empresarial dedicado a la producción, distribución y comercialización de energía.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 14 | 36 contacts → | ||||
Strong evidence “Leaders in the international trading and supply of quality energy resources.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Indirect evidence “Fundada en 2007 por un grupo de grandes consumidores, surgió como una solución innovadora para el aprovisionamiento de electricidad a la industria electrointensiva y es en la…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 contacts → | ||||
Indirect evidence “AEQ es una compañía suministradora de electricidad de ámbito nacional, que nace apoyándose en los sólidos pilares de Wind to Market S.A.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Strong evidence “Si no te gusta tu energía, dale la vuelta Wekiwi, la energía al revés.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “El grupo Faraday Internacional engloba como holding a 3 empresas del sector de la construcción y del mantenimiento de electricidad en el sector industrial, de generación…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Indirect evidence “Grupo Hafesa es un holding empresarial que se dedica al trading y a la comercialización y distribución de productos del #petróleo y que ofrece servicios de almacenamiento…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Strong evidence “Stemy Energy was created with the mission to reduce the energy bill of end-users, reduce their carbon footprint, and promote a more sustainable energy system.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Strong evidence “Icosium Investment is a global energy solutions company with over 15 years of experience, dedicated to advancing energy projects across Africa and Europe.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “Bienvenido a la cuenta oficial de la delegación ibérica de Montel, donde cubrimos España, Portugal, y América Latina.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Strong evidence “Las prácticas tradicionales en el sector energético carecen de transparencia y se aprovechan del desconocimiento generalizado.” Source: RevenueBase Database · checked Sep 12, 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: energy companies. 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 energy companies.
- Partial evidence
- Its own public description names part of energy companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy companies. 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 23 of 96 energy companies based in Madrid, Spain
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Energy companies based in Madrid, Spain at a glance
As of Sep 12, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 15.0dCompany record updated
Median 77.0dHow 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 energy companies, 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 “energy companies”. 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 energy companies), 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 energy companies, 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, 1,590 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 12, 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 are energy companies?
Energy companies produce, generate, transmit, distribute, trade, or supply energy and related products and services.
How many energy companies are based in Madrid, Spain?
The directory lists 96 energy companies based in Madrid, Spain, with 18,668 business contacts and 1,590 email addresses.
Which city in Spain has the most energy companies?
Madrid leads Spain with 95 headquartered companies, followed by Barcelona (17) and Zaragoza (12).
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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.