Company lists · Data refreshed September 2026

Top 25 Electrical infrastructure companies based in Spain

Name: Electrical 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 719 companies tracked

RevenueBase identified 719 electrical infrastructure companies headquartered in Spain as of September 2026 and tracks 15,926 professional contacts across them, including 1,237 with verified work emails. Madrid is the largest hub.

This list covers electrical 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

719Companies

15,926Contacts tracked

1,237Verified emails

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The 25 largest electrical infrastructure companies based in Spain

Ranked by team size

Top 25 of 719 electrical 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 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	Isolux Corsan	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	5,001-10,000	1,649 contacts →
	Partial evidence “Isolux is a global benchmark in energy, water and environmental, road and railways infrastructure with presence in more than 35 countries on four continents.” Source: RevenueBase Database · checked Sep 19, 2026
2	RED Eléctrica	Partial evidence	Alcobendas, SpainHQ checked Sep 19, 2026	1,001-5,000	1,034 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
3	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
4	Sonepar España	Indirect evidence	Leganés, SpainHQ checked Sep 19, 2026	1,001-5,000	715 contacts →
	Indirect evidence “Sonepar Ibérica ofrece a los profesionales la gama más completa de productos y soluciones para los sectores residencial, industrial y terciario.” Source: RevenueBase Database · checked Sep 19, 2026
5	Comfica Soluciones Integrales S.L	Partial evidence	Fuenlabrada, SpainHQ checked Sep 19, 2026	201-500	684 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
6	Insyte Instalaciones	Indirect evidence	Getafe, SpainHQ checked Sep 19, 2026	1,001-5,000	628 contacts →
	Indirect evidence “Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Source: RevenueBase Database · checked Sep 19, 2026
7	Sampol	Partial evidence	Palma, SpainHQ checked Sep 19, 2026	1,001-5,000	581 contacts →
	Partial evidence “SAMPOL is an independent, multinational, family owned company founded in 1934 and a leader in the implementation of Energy projects, Electrical installations, Telecommunications…” Source: RevenueBase Database · checked Sep 19, 2026
8	Grupo Lantania	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	1,001-5,000	475 contacts →
	Indirect evidence “En Lantania hacemos realidad grandes infraestructuras de transporte, agua y energía con el entusiasmo de una empresa joven y la solidez que nos aporta la experiencia.” Source: RevenueBase Database · checked Sep 19, 2026
9	Ametel	Indirect evidence	Dos Hermanas, SpainHQ checked Sep 19, 2026	1,001-5,000	345 contacts →
	Indirect evidence “Ametel desarrolla proyectos y servicios para infraestructuras eléctricas, telecomunicaciones, energías renovables y redes de gas.” Source: RevenueBase Database · checked Sep 19, 2026
10	Lanco Infratech Limited	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	1,001-5,000	314 contacts →
	Indirect evidence “LANCO INFRATECH LIMITED is an oil and energy company based out of Calle Laguna del Marquesado Nª 19, Nave 16 Edificio Adriana 1ª Planta, Polígono Industrial La Resina…” Source: RevenueBase Database · checked Sep 19, 2026
11	TOP Cable	Partial evidence	Rubi, SpainHQ checked Sep 19, 2026	501-1,000	217 contacts →
	Partial evidence “Top Cable is one of the fastest-growing brands in the manufacture of electric cables.” Source: RevenueBase Database · checked Sep 19, 2026
12	Iprocel	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 19, 2026	51-200	216 contacts →
	Indirect evidence “IPROCEL es una empresa multinacional fundada en 1993 especializada en la prestación de servicios de ingeniería, puesta en marcha, operación y mantenimiento de sistemas eléctricos…” Source: RevenueBase Database · checked Sep 19, 2026
13	Quadrante Izharia	Indirect evidence	Las Rozas De Madrid, SpainHQ checked Sep 19, 2026	1,001-5,000	178 contacts →
	Indirect evidence “Nos dedicamos a la Ingeniería de Subestaciones y Lineas de AT y MT.” Source: RevenueBase Database · checked Sep 19, 2026
14	Initec Energía	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	168 contacts →
	Partial evidence “INITEC Energía focuses its activity on the construction of electricity generation facilities.” Source: RevenueBase Database · checked Sep 19, 2026
15	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
16	Osmos Sistemas Eléctricos	Indirect evidence	A Coruña, SpainHQ checked Sep 19, 2026	201-500	121 contacts →
	Indirect evidence “LA EMPRESA Y SUS VALORES Osmos tiene por misión la prestación de servicios eléctricos, abarcando la instalación desde su concepción, realizando el montaje y manteniendo las…” Source: RevenueBase Database · checked Sep 19, 2026
17	CEN Solutions	Partial evidence	Dos Hermanas, SpainHQ checked Sep 19, 2026	201-500	121 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
18	Sarpel Ingeniería Grupo Energy Technologies	Indirect evidence	Province Of A Coruña, SpainHQ checked Sep 19, 2026	51-200	79 contacts →
	Indirect evidence “SARPEL Ingeniería, del Grupo Energy Technologies, está especializada en el desarrollo de instalaciones eléctricas de alta y baja tensión, instalaciones de control y automatización…” Source: RevenueBase Database · checked Sep 19, 2026
19	Dimae Dielectro Manchego	Indirect evidence	Ciudad Real, SpainHQ checked Sep 19, 2026	51-200	71 contacts →
	Indirect evidence “DIMAE Dielectro Manchego, Venta, soluciones, servicios y complementos.” Source: RevenueBase Database · checked Sep 19, 2026
20	Flulle	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 19, 2026	51-200	66 contacts →
	Indirect evidence “FLULLE surge en 1990 en Fuenlabrada (Madrid) como empresa de instalaciones eléctricas.” Source: RevenueBase Database · checked Sep 19, 2026
21	Comaple	Indirect evidence	Villafranca Del Castillo, SpainHQ checked Sep 19, 2026	51-200	64 contacts →
	Indirect evidence “Empresa líder en el sector de suministro de material eléctrico, instrumentación y comunicaciones para proyectos industriales e infraestructuras.” Source: RevenueBase Database · checked Sep 19, 2026
22	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
23	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
24	CELEO	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	501-1,000	60 contacts →
	Indirect evidence “Founded in 2009, Celeo Concesiones e Inversiones (Celeo) purpose is to identify and manage worldwide investments in power transmission and renewable energy projects.” Source: RevenueBase Database · checked Sep 19, 2026
25	Grupo Síndel	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	51-200	57 contacts →
	Indirect evidence “Grupo Síndel es una tienda y almacén de material eléctrico en Utiel, Valencia, proveedores mayoristas de todo tipo de suministro relacionado.” 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: electrical 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 electrical infrastructure companies.
Partial evidence: Its own public description names part of electrical infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical 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 719 electrical infrastructure companies based in Spain

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Electrical infrastructure companies based in Spain at a glance

As of Sep 19, 2026

7.8%Verified-email coverage

22.2Average contacts per company

11-50Median size (employees)

8.3%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

259

11-50

300

51-200

112

201-500

501-1,000

1,001-5,000

5,001-10,000

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 719 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 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 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 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 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, 1,237 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 infrastructure companies by metro

Electrical infrastructure companies in Madrid60

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 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 infrastructure companies are there based in Spain?

RevenueBase identified 719 electrical 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?

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

Which city has the most electrical infrastructure companies?

Madrid leads with 60 headquartered companies, followed by Barcelona (24) and Zaragoza (15).

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 1,237 verified decision-maker contacts tracked across these 719 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.