Company lists · Data refreshed September 2026

Top 25 Grid infrastructure companies based in Spain

Name: Grid infrastructure companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 145 companies tracked

RevenueBase identified 145 grid infrastructure companies headquartered in Spain as of September 2026 and tracks 5,949 professional contacts across them, including 491 with verified work emails. Madrid is the largest hub.

This list covers 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

145Companies

5,949Contacts tracked

491Verified emails

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The 25 largest grid infrastructure companies based in Spain

Ranked by team size

Top 25 of 145 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 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	RED Eléctrica	Indirect evidence	Alcobendas, SpainHQ checked Sep 19, 2026	1,001-5,000	1,034 contacts →
	Indirect 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
2	Ormazabal	Partial evidence	Derio, SpainHQ checked Sep 19, 2026	1,001-5,000	1,014 contacts →
	Partial 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
3	Comfica Soluciones Integrales S.L	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 19, 2026	201-500	684 contacts →
	Indirect 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
4	Redexis	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	205 contacts →
	Indirect evidence “Grupo Redexis es un conjunto de sociedades de infraestructuras comprometidas con la transición energética, el desarrollo de los gases renovables y el crecimiento sostenible…” Source: RevenueBase Database · checked Sep 19, 2026
5	Voltae Engineering	Indirect evidence	Sevilla, SpainHQ checked Sep 19, 2026	51-200	132 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
6	MEINS	Indirect evidence	Salamanca, SpainHQ checked Sep 19, 2026	51-200	63 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
7	Seselec España	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	61 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
8	Inael Electrical Systems	Indirect evidence	Toledo., SpainHQ checked Sep 19, 2026	51-200	56 contacts →
	Indirect 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
9	Elecam	Indirect evidence	San Agustín De Guadalix, SpainHQ checked Sep 19, 2026	11-50	56 contacts →
	Indirect evidence “Empresa dedicada a Instalaciones Eléctricas/energéticas tanto a particulares como grandes empresas.” Source: RevenueBase Database · checked Sep 19, 2026
10	Iberapa Iberica DE Aparellajes	Indirect evidence	Masamagrell, SpainHQ checked Sep 19, 2026	51-200	46 contacts →
	Indirect 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
11	Conelec S.A	Indirect evidence	Vigo, SpainHQ checked Sep 19, 2026	51-200	38 contacts →
	Indirect evidence “CONELEC, S.A.” Source: RevenueBase Database · checked Sep 19, 2026
12	GAROC	Indirect evidence	Ciudad Real, SpainHQ checked Sep 19, 2026	201-500	35 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
13	Inove Ingeniería	Indirect evidence	San Fernando De Henares, SpainHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “Especialistas en la realización de Ingeniería Global para infraestructuras eléctricas.” Source: RevenueBase Database · checked Sep 19, 2026
14	Osprel S.L	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	22 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
15	Ogisa Infraestructuras S.A	Indirect evidence	Zaragoza, SpainHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
16	Citracc Rail	Indirect evidence	Coslada, SpainHQ checked Sep 19, 2026	11-50	18 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
17	E Gedesel	Indirect evidence	Zaragoza, SpainHQ checked Sep 19, 2026	11-50	18 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
18	Krilinex Power Solutions	Indirect evidence	Bilbao, SpainHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “You are Power.” Source: RevenueBase Database · checked Sep 19, 2026
19	REINS	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Nuestros principales clientes son empresas transportistas y distribuidoras de gas natural y electricidad, para las que se está trabajando a nivel internacional, y colaborando en…” Source: RevenueBase Database · checked Sep 19, 2026
20	Vinaelectric Montajes Eléctricos	Indirect evidence	Fuente Vaqueros, SpainHQ checked Sep 19, 2026	51-200	14 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
21	Proyelec	Indirect evidence	Ciudad Real, SpainHQ checked Sep 19, 2026	11-50	14 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
22	Ipejma Servicios Electricos SL	Indirect evidence	Las Torres De Cotillas, SpainHQ checked Sep 19, 2026	51-200	13 contacts →
	Indirect 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
23	Segade Saelco SA	Indirect evidence	Ourense, SpainHQ checked Sep 19, 2026	51-200	11 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
24	Villa Flores Martín	Indirect evidence	Carmona, SpainHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Para conocer los orígenes de Villa Flores Martín debemos remontarnos al año 1981: cuando tres profesionales con larga experiencia en el montaje eléctrico se unieron para crear la…” Source: RevenueBase Database · checked Sep 19, 2026
25	Globalsa Acometidas Eléctricas	Indirect evidence	Lleida, SpainHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Somos una empresa de ingeniería, desarrollo y construcción de proyectos de infraestructuras.” Source: RevenueBase Database · checked Sep 19, 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: grid infrastructure 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 grid infrastructure companies.
Partial evidence: Its own public description names part of grid infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid infrastructure 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 25 of 145 grid infrastructure companies based in Spain

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Grid infrastructure companies based in Spain at a glance

As of Sep 19, 2026

8.3%Verified-email coverage

41.0Average contacts per company

11-50Median size (employees)

14.5%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 145 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 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 “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 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 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, 491 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.

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 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 grid infrastructure companies are there based in Spain?

RevenueBase identified 145 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 grid infrastructure companies?

Madrid leads with 21 headquartered companies, followed by Barcelona (6) 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 491 verified decision-maker contacts tracked across these 145 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.