Company lists · Data refreshed September 2026

Top 25 Rail electrification companies based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 301 companies tracked

RevenueBase identified 301 rail electrification companies headquartered in Spain as of September 2026 and tracks 4,269 professional contacts across them, including 211 with verified work emails. Madrid is the largest hub.

This list covers rail electrification 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 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

301Companies

4,269Contacts tracked

211Verified emails

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The 25 largest rail electrification companies based in Spain

Ranked by team size

Top 25 of 301 rail electrification companies based in Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rail electrification 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	Comfica Soluciones Integrales S.L	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 17, 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 17, 2026
2	Syneox Rail	Indirect evidence	Alcobendas, SpainHQ checked Sep 17, 2026	501-1,000	155 contacts →
	Indirect evidence “Railway Energy Systems International Contractor” Source: RevenueBase Database · checked Sep 17, 2026
3	Osmos Sistemas Eléctricos	Indirect evidence	A Coruña, SpainHQ checked Sep 17, 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 17, 2026
4	Tria Ingenieria	Partial evidence	Navalcarnero, SpainHQ checked Sep 17, 2026	501-1,000	115 contacts →
	Partial evidence “TRIA Rail es una empresa global de ingeniería con una pasión inquebrantable por el ferrocarril.” Source: RevenueBase Database · checked Sep 17, 2026
5	Telice	Strong evidence	Alcobendas., SpainHQ checked Sep 17, 2026	51-200	93 contacts →
	Strong evidence “At Telice we design, install and maintain rail electrification, signaling and communication systems for the rail and industrial sector.” Source: RevenueBase Database · checked Sep 17, 2026
6	Flulle	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 17, 2026	51-200	66 contacts →
	Indirect evidence “FLULLE surge en 1990 en Fuenlabrada (Madrid) como empresa de instalaciones eléctricas.” Source: RevenueBase Database · checked Sep 17, 2026
7	Inse Rail	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	61 contacts →
	Partial evidence “Inse Rail es una compañía independiente, fundada en 1994, dedicada a la ingeniería y consultoría en los sectores ferroviario, industrial, de energía y edificación, desarrollando…” Source: RevenueBase Database · checked Sep 17, 2026
8	Elecam	Indirect evidence	San Agustín De Guadalix, SpainHQ checked Sep 17, 2026	11-50	56 contacts →
	Indirect evidence “Empresa dedicada a Instalaciones Eléctricas/energéticas tanto a particulares como grandes empresas.” Source: RevenueBase Database · checked Sep 17, 2026
9	Montajes DE Electricidad Moya	Indirect evidence	Almería, SpainHQ checked Sep 17, 2026	51-200	43 contacts →
	Indirect evidence “Proporcionamos un servicio integral que abarca desde el diseño e ingeniería hasta el mantenimiento de instalaciones pasando por todas las fases de asesoramiento, obra, ejecución y…” Source: RevenueBase Database · checked Sep 17, 2026
10	Irecfer	Indirect evidence	Estepona, SpainHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Irecfer (Instalaciones y Recursos Ferroviarios, S.L.) se dedica a la realización de obras ferroviarias para entidades públicas y empresas privadas.” Source: RevenueBase Database · checked Sep 17, 2026
11	LLANO	Indirect evidence	Siero, SpainHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Electricidad Llano se crea en el año 1990 para dar servicio a las crecientes necesidades en instalaciones eléctricas.” Source: RevenueBase Database · checked Sep 17, 2026
12	Voestalpine Railway Systems JEZ	Indirect evidence	Llodio, SpainHQ checked Sep 17, 2026	201-500	38 contacts →
	Indirect evidence “Nos dedicamos al diseño, fabricación, suministro y mantenimiento de cruzamientos y aparatos de vía para el ferrocarril.” Source: RevenueBase Database · checked Sep 17, 2026
13	Tecmo Instalaciones, Obras Y Servicios, S.A. Tecmo	Indirect evidence	Paterna, SpainHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “Tecmo nace con el firme propósito de proporcionar servicios de instalaciones eléctricas, tanto de Alta como Baja tensión, Telecomunicaciones e Instalaciones Especiales mediante la…” Source: RevenueBase Database · checked Sep 17, 2026
14	Conelec S.A	Indirect evidence	Vigo, SpainHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “CONELEC, S.A.” Source: RevenueBase Database · checked Sep 17, 2026
15	GAROC	Indirect evidence	Ciudad Real, SpainHQ checked Sep 17, 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 17, 2026
16	Mosdorfer Rail	Indirect evidence	Granollers, SpainHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Reliable and maintenance-free infrastructure provides the basis for trouble-free operation of electric railways for local and long-distance travel.” Source: RevenueBase Database · checked Sep 17, 2026
17	Inove Ingeniería	Indirect evidence	San Fernando De Henares, SpainHQ checked Sep 17, 2026	51-200	28 contacts →
	Indirect evidence “Especialistas en la realización de Ingeniería Global para infraestructuras eléctricas.” Source: RevenueBase Database · checked Sep 17, 2026
18	Inserty	Indirect evidence	Montcada I Reixac, SpainHQ checked Sep 17, 2026	51-200	28 contacts →
	Indirect evidence “Inserty es referente en el sector de las instalaciones de comunicaciones y eléctricas.” Source: RevenueBase Database · checked Sep 17, 2026
19	Sierra Ingeniería Eléctrica	Indirect evidence	Coslada, SpainHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “SIERRA Ingeniería Eléctrica empresa de reconocida trayectoria en los sectores de las instalaciones eléctricas, especiales, ingeniería, mantenimiento y montaje de cuadros…” Source: RevenueBase Database · checked Sep 17, 2026
20	Ogisa Infraestructuras S.A	Indirect evidence	Zaragoza, SpainHQ checked Sep 17, 2026	51-200	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Citracc Rail	Indirect evidence	Coslada, SpainHQ checked Sep 17, 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 17, 2026
22	E Gedesel	Indirect evidence	Zaragoza, SpainHQ checked Sep 17, 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 17, 2026
23	Coalvi Grupo Aldesa	Indirect evidence	Zaragoza, SpainHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “Empresa del Grupo Aldesa especializada en construcción, reparación, conservación y modernización en obras ferroviarias: vía, electrificación, túneles e infraestructuras.” Source: RevenueBase Database · checked Sep 17, 2026
24	Arca Catenaria	Indirect evidence	Munguía, SpainHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “We are specialized in designing, developing and manufacturing hardware and fittings for overhead railway lines.” Source: RevenueBase Database · checked Sep 17, 2026
25	Llamas	Indirect evidence	Alhama De Murcia, SpainHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “Empresa originalmente dedicada al ramo de la electricidad, fue fundada como tal en 1985.” 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: rail electrification 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 rail electrification companies.
Partial evidence: Its own public description names part of rail electrification companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail electrification 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 301 rail electrification companies based in Spain

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Rail electrification companies based in Spain at a glance

As of Sep 17, 2026

4.9%Verified-email coverage

14.2Average contacts per company

11-50Median size (employees)

7.6%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

145

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 301 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 rail electrification 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 “rail electrification 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 rail electrification 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 rail electrification 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, 211 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.

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 rail electrification 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 rail electrification companies are there based in Spain?

RevenueBase identified 301 rail electrification 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?

Comfica Soluciones Integrales S.L, headquartered in Fuenlabrada, tops this list with the largest team on record.

Which city has the most rail electrification companies?

Madrid leads with 23 headquartered companies, followed by Barcelona (9) and Zaragoza (6).

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 211 verified decision-maker contacts tracked across these 301 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.