Company lists · Data refreshed September 2026

Top 25 Railway construction companies based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 88 companies tracked

RevenueBase identified 88 railway construction companies headquartered in Spain as of September 2026 and tracks 8,141 professional contacts across them, including 1,479 with verified work emails. Madrid is the largest hub.

This list covers railway construction 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 16, 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 16, 2026 86% judged on-target in blind review

88Companies

8,141Contacts tracked

1,479Verified emails

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The 25 largest railway construction companies based in Spain

Ranked by team size

Top 25 of 88 railway construction companies based in Spain, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to railway construction 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	ADIF	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	10001+	5,077 contacts →
	Indirect evidence “Adif, el Administrador de Infraestructuras Ferroviarias, es una entidad pública empresarial dependiente del Ministerio de Transportes y Movilidad Sostenible.” Source: RevenueBase Database · checked Sep 16, 2026
2	Vías Y Construcciones, S.A	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	1,001-5,000	214 contacts →
	Indirect evidence “VIAS es una empresa constructora con más de 80 años de experiencia, que pertenece a uno de los mayores grupos de Construcción y Servicios de ámbito Internacional.” Source: RevenueBase Database · checked Sep 16, 2026
3	Seranco	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 16, 2026	201-500	179 contacts →
	Indirect evidence “Empresa constructora de ámbito nacional, especializada en obra civil, hidráulica, ferroviaria, edificación, rehabilitación, restauración y obra industrial.” Source: RevenueBase Database · checked Sep 16, 2026
4	ENYSE	Indirect evidence	Alcobendas, SpainHQ checked Sep 16, 2026	51-200	168 contacts →
	Indirect evidence “Enyse is the heir of the longest history in Spain’s Signalling sector – in 1924 the first electric interlocking is commissioned at Don Carlos station in Barcelona, which at the…” Source: RevenueBase Database · checked Sep 16, 2026
5	Syneox Rail	Partial evidence	Alcobendas, SpainHQ checked Sep 16, 2026	501-1,000	155 contacts →
	Partial evidence “Railway Energy Systems International Contractor” Source: RevenueBase Database · checked Sep 16, 2026
6	Btren Mantenimiento Ferroviario SA	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	201-500	131 contacts →
	Indirect evidence “Btren es una empresa dedicada al mantenimiento ferroviario de trenes de alta velocidad, media distancia y cercanías, participada por ALSTOM y RENFE.” Source: RevenueBase Database · checked Sep 16, 2026
7	Electrans	Partial evidence	Santa Perpètua De Mogoda, SpainHQ checked Sep 16, 2026	201-500	125 contacts →
	Partial evidence “Established in Barcelona in 1977, Electrosistemas Bach S.A.(ELECTRANS) has been a pioneering force in the railway signaling sector since its inception.” Source: RevenueBase Database · checked Sep 16, 2026
8	Tria Ingenieria	Indirect evidence	Navalcarnero, SpainHQ checked Sep 16, 2026	501-1,000	115 contacts →
	Indirect evidence “TRIA Rail es una empresa global de ingeniería con una pasión inquebrantable por el ferrocarril.” Source: RevenueBase Database · checked Sep 16, 2026
9	Telice	Indirect evidence	Alcobendas., SpainHQ checked Sep 16, 2026	51-200	93 contacts →
	Indirect 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 16, 2026
10	GMF	Partial evidence	Constanti, SpainHQ checked Sep 16, 2026	201-500	92 contacts →
	Partial evidence “GMF (Gestión de Maquinaria Ferroviaria, Railway Maintenance Services) es la empresa dedicada al Mantenimiento de material rodante ferroviario, a la fabricación y comercialización…” Source: RevenueBase Database · checked Sep 16, 2026
11	Imathia Construcción SL	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	51-200	85 contacts →
	Indirect evidence “The Company started activities in the civil works sector in 2004, being IMATHIA Construcción main objective to provide Spanish and international clients with a professional and…” Source: RevenueBase Database · checked Sep 16, 2026
12	Inse Rail	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	51-200	61 contacts →
	Indirect 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 16, 2026
13	Ingeniería Y Control Ferroviario	Partial evidence	Alcobendas, SpainHQ checked Sep 16, 2026	51-200	40 contacts →
	Partial evidence “INGENIERÍA Y CONTROL FERROVIARIO S.A,ICF, arise with the aim of providing innovative technological response in some specific areas of the railway, mainly in the area of Level…” Source: RevenueBase Database · checked Sep 16, 2026
14	Irecfer	Indirect evidence	Estepona, SpainHQ checked Sep 16, 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 16, 2026
15	Cycasa Canteras Y Construcciones, S.A	Indirect evidence	Bilbao, SpainHQ checked Sep 16, 2026	51-200	40 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
16	Voestalpine Railway Systems JEZ	Indirect evidence	Llodio, SpainHQ checked Sep 16, 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 16, 2026
17	Mosdorfer Rail	Partial evidence	Granollers, SpainHQ checked Sep 16, 2026	51-200	33 contacts →
	Partial 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 16, 2026
18	Troya Construcciones Ferroviarias	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	51-200	30 contacts →
	Indirect evidence “TROYA constructora especializada en obra civil y mantenimiento de infraestructura de transportes (principalmente ferroviarias), así como de nuevos proyectos de diseño y adecuación…” Source: RevenueBase Database · checked Sep 16, 2026
19	BEWS	Indirect evidence	Barcelona, SpainHQ checked Sep 16, 2026	11-50	29 contacts →
	Indirect evidence “BEWS provides sustainable and innovative solutions in the area of Infrastructures and Transportation.” Source: RevenueBase Database · checked Sep 16, 2026
20	Infraestructuras Trade	Indirect evidence	Sant Felíu De Llobregat, SpainHQ checked Sep 16, 2026	11-50	26 contacts →
	Indirect evidence “Nos especializamos en los trabajos que requieren un valor añadido: COMPROMISO, PRECISIÓN y TECNOLOGÍA La experiencia consolidada en el sector de infraestructuras ferroviarias…” Source: RevenueBase Database · checked Sep 16, 2026
21	Talleres Alegría	Partial evidence	Llanera, SpainHQ checked Sep 16, 2026	51-200	24 contacts →
	Partial evidence “Talleres Alegría is a company exclusively dedicated to manufacturing railway material and equipment.” Source: RevenueBase Database · checked Sep 16, 2026
22	S.A. DE Instalaciones Alfar	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	51-200	21 contacts →
	Indirect evidence “Instalaciones ALFAR somos una empresa que dedica su actividad a la instalación de sistemas de seguridad y señalización en obras ferroviarias de ADIF, ADIF Alta Velocidad, FEVE…” Source: RevenueBase Database · checked Sep 16, 2026
23	Spiral	Indirect evidence	Camargo, SpainHQ checked Sep 16, 2026	11-50	21 contacts →
	Indirect evidence “Spiral is a transportation design company grounded on more than 30 years of experience in international infrastructure projects.” Source: RevenueBase Database · checked Sep 16, 2026
24	Siderurgica Requena SA	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	51-200	19 contacts →
	Indirect evidence “SIDERURGICA REQUENA SA is an individual & family services company based out of CALLE DE EDUARDO BARREIROS, 116, MADRID, Madrid, Spain.” Source: RevenueBase Database · checked Sep 16, 2026
25	Citracc Rail	Indirect evidence	Coslada, SpainHQ checked Sep 16, 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 16, 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: railway construction 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 railway construction companies.
Partial evidence: Its own public description names part of railway construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name railway construction 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 88 railway construction companies based in Spain

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Railway construction companies based in Spain at a glance

As of Sep 16, 2026

18.2%Verified-email coverage

92.5Average contacts per company

11-50Median size (employees)

22.7%Largest-city concentration · Madrid

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 88 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 railway construction 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 “railway construction 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 railway construction 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 railway construction 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, 1,479 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 16, 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 railway construction 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 railway construction companies are there based in Spain?

RevenueBase identified 88 railway construction 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?

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

Which city has the most railway construction companies?

Madrid leads with 20 headquartered companies, followed by Barcelona (6) and Alcobendas (3).

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 1,479 verified decision-maker contacts tracked across these 88 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 16, 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.