Company lists · Data refreshed September 2026

Top 25 Electrical grid infrastructure companies based in Spain

RevenueBase identified 177 electrical grid infrastructure companies headquartered in Spain as of September 2026 and tracks 5,996 professional contacts across them, including 508 with verified work emails. Madrid is the largest hub.

This list covers electrical grid infrastructure companies 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 19, 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 19, 2026 86% judged on-target in blind review
177Companies
5,996Contacts tracked
508Verified emails
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The 25 largest electrical grid infrastructure companies based in Spain

Ranked by team size
Top 25 of 177 electrical grid infrastructure companies based in Spain, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical grid infrastructure companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAlcobendas, SpainHQ checked Sep 19, 20261,001-5,0001,034 contacts →

Partial evidence

“Red Eléctrica fue la primera empresa en el mundo dedicada en exclusividad al transporte de electricidad y a la operación de sistemas eléctricos.”

Source: RevenueBase Database · checked Sep 19, 2026
2Strong evidenceDerio, SpainHQ checked Sep 19, 20261,001-5,0001,014 contacts →

Strong evidence

“We are experts in customized and high-tech electrical solutions for your challenges At Ormazabal we design and manufacture solutions aimed at digitalizing the electrical grid to…”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceFuenlabrada, SpainHQ checked Sep 19, 2026201-500684 contacts →

Partial evidence

“Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceSevilla, SpainHQ checked Sep 19, 202651-200132 contacts →

Indirect evidence

“Somos una compañía de ingeniería y consultoría altamente especializada, ofreciendo servicios integrales de alto valor en proyectos de transmisión, distribución y generación de…”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceDos Hermanas, SpainHQ checked Sep 19, 2026201-500121 contacts →

Partial evidence

“CEN Solutions specializes in the design, development, and implementation of electrical equipment and turnkey solutions for the energy, petrochemical, industrial, aerospace, and…”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceSalamanca, SpainHQ checked Sep 19, 202651-20063 contacts →

Indirect evidence

“Meins is a leading supplier of disruptive and precast solutions in the Renewable Energy, Data Center, and Mobility sectors, specializing in the supply and integration of HV…”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceMadrid, SpainHQ checked Sep 19, 202651-20061 contacts →

Indirect evidence

“SESELEC es una empresa EPC especializada en infraestructura eléctrica (Subestaciones, Líneas de Transmisión, Plantas Fotovoltaicas) dentro de México, Latinoamérica y España.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceToledo., SpainHQ checked Sep 19, 202651-20056 contacts →

Partial evidence

“Over 45 years endorse us in the Power Sector with advanced solutions in the manufacture and distribution of electrical equipment for medium and high voltage.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceSan Agustín De Guadalix, SpainHQ checked Sep 19, 202611-5056 contacts →

Indirect evidence

“Empresa dedicada a Instalaciones Eléctricas/energéticas tanto a particulares como grandes empresas.”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceMasamagrell, SpainHQ checked Sep 19, 202651-20046 contacts →

Partial evidence

“Iberapa manufacturer of high voltage electrical control and protection equipment: distribution overhead lines, AT MT substations, secondary transformer stations, wind farms…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceVigo, SpainHQ checked Sep 19, 202651-20038 contacts →

Indirect evidence

“CONELEC, S.A.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceCiudad Real, SpainHQ checked Sep 19, 2026201-50035 contacts →

Indirect evidence

“GAROC (GRUPO DE ARQUITECTURA Y OBRA CIVIL), nace en mayo de 2003 en Ciudad Real donde tiene su sede Social.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceSan Fernando De Henares, SpainHQ checked Sep 19, 202651-20028 contacts →

Indirect evidence

“Especialistas en la realización de Ingeniería Global para infraestructuras eléctricas.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceDerio, SpainHQ checked Sep 19, 202611-5023 contacts →

Partial evidence

“Ariadna Grid helps DSOs transform grid data into operational and investment decisions.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceMadrid, SpainHQ checked Sep 19, 202611-5022 contacts →

Indirect evidence

“Osprel es una empresa española que surge como respuesta a la existente necesidad mundial de una ingeniería de calidad en la planificación, transporte y distribución de energía…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceZaragoza, SpainHQ checked Sep 19, 202651-20022 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceCoslada, SpainHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“Somos una compañía especializada en ingeniería, fabricación, instalación y mantenimiento de infraestructuras críticas para los sectores ferroviario y energético.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceZaragoza, SpainHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“Con más de 40 años de experiencia en el sector, nuestros servicios son una garantía de satisfacción.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceBarcelona, SpainHQ checked Sep 19, 202651-20017 contacts →

Indirect evidence

“En SEIT, llevamos más de 50 años siendo una empresa de referencia en el sector de la distribución de material eléctrico con un alto índice de conocimiento y especialización en…”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceBilbao, SpainHQ checked Sep 19, 202611-5017 contacts →

Indirect evidence

“You are Power.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceFuente Vaqueros, SpainHQ checked Sep 19, 202651-20014 contacts →

Indirect evidence

“Empresa instaladora y de mantenimiento de infraestructuras técnicas, consolidada y con una amplia implantación profesional en el ámbito nacional e internacional.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceCiudad Real, SpainHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“Esta empresa nace a principios de los años 80, con carácter unipersonal, dedicada al montaje de instalaciones eléctricas, públicas y privadas, principalmente de media y baja…”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceLas Torres De Cotillas, SpainHQ checked Sep 19, 202651-20013 contacts →

Partial evidence

“IPEJMA SERVICIOS ELECTRICOS SL is a construction company based out of Carril Los Matias n8, La Loma - Las Torres de Cotillas Murcia, Spain.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceOurense, SpainHQ checked Sep 19, 202651-20011 contacts →

Indirect evidence

“Somos una empresa con más de 40 años de experiencia en la construcción de Líneas Eléctricas Aéreas y Subterráneas de Alta Tensión, en constante crecimiento y desarrollo.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceMadrid, SpainHQ checked Sep 19, 202651-20011 contacts →

Partial 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 19, 2026

Showing 25 of 177 electrical grid infrastructure companies based in Spain

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Electrical grid infrastructure companies based in Spain at a glance

As of Sep 19, 2026
8.5%Verified-email coverage
33.9Average contacts per company
11-50Median size (employees)
14.1%Largest-city concentration · Madrid
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
49
11-50
74
51-200
35
201-500
10
501-1,000
1
1,001-5,000
8

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 177 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 electrical grid infrastructure 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 Spain whose own description of what they do matches “electrical grid infrastructure 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 electrical grid infrastructure 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 electrical grid infrastructure companies, 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, 508 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 19, 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.

Electrical grid infrastructure companies by metro

  • Electrical grid infrastructure companies in Madrid25

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 electrical grid infrastructure companies, 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 electrical grid infrastructure companies are there based in Spain?

RevenueBase identified 177 electrical grid infrastructure companies 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?

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

Which city has the most electrical grid infrastructure companies?

Madrid leads with 25 headquartered companies, followed by Barcelona (7) and Sevilla (5).

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 508 verified decision-maker contacts tracked across these 177 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 19, 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.