Company lists · Data refreshed September 2026

Top 25 Rail engineering services based in France

Name: Rail engineering services based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 258 companies tracked

RevenueBase identified 258 rail engineering services headquartered in France as of September 2026 and tracks 14,981 professional contacts across them, including 4,741 with verified work emails. Paris is the largest hub.

This list covers rail engineering services headquartered in France, 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

258Companies

14,981Contacts tracked

4,741Verified emails

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The 25 largest rail engineering services based in France

Ranked by team size

Top 25 of 258 rail engineering services based in France, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rail engineering services: 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	ETF	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 17, 2026	1,001-5,000	1,597 contacts →
	Indirect evidence “Au sein des métiers Réseaux France de VINCI Construction, ETF conçoit, construit et entretient chaque jour les infrastructures ferroviaires nationales, urbaines et privées en…” Source: RevenueBase Database · checked Sep 17, 2026
2	Colas France	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	10001+	1,205 contacts →
	Indirect evidence “Le groupe Colas est leader mondial de la construction, de l'entretien et de la maintenance des infrastructures de transport.” Source: RevenueBase Database · checked Sep 17, 2026
3	TSO	Partial evidence	Chelles, FranceHQ checked Sep 17, 2026	1,001-5,000	1,109 contacts →
	Partial evidence “With more than 90 years’ experience in France and internationally, TSO (subsidiary of NGE) puts its expertise to work on: • rail services resumed between Oloron and Bedous • track…” Source: RevenueBase Database · checked Sep 17, 2026
4	Ikos Group	Indirect evidence	Levallois-perret, FranceHQ checked Sep 17, 2026	1,001-5,000	1,042 contacts →
	Indirect evidence “JOIN US : contact@ikosconsulting.com IKOS is a leading technology consulting firm specialized in the Railway sector with an additional offer in Energy.” Source: RevenueBase Database · checked Sep 17, 2026
5	Sferis	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	1,001-5,000	714 contacts →
	Indirect evidence “Date de création : Février 2012 Groupe : SNCF Directeur : M.” Source: RevenueBase Database · checked Sep 17, 2026
6	Vossloh Switch Systems	Partial evidence	Rueil-malmaison, FranceHQ checked Sep 17, 2026	1,001-5,000	603 contacts →
	Partial evidence “The Vossloh Switch Systems division develops and manufactures switch systems for rail infrastructure, which must be individually adapted to the customer and the project.” Source: RevenueBase Database · checked Sep 17, 2026
7	Spie Batignolles Énergie	Indirect evidence	Eaubonne, FranceHQ checked Sep 17, 2026	1,001-5,000	375 contacts →
	Indirect evidence “Spie batignolles énergie est un opérateur complet couvrant l’ensemble des métiers du génie électrique, du génie climatique et des services qui y sont associés : génie électrique…” Source: RevenueBase Database · checked Sep 17, 2026
8	Geismar Rail Industry Technologies & Services	Partial evidence	Colmar, FranceHQ checked Sep 17, 2026	501-1,000	327 contacts →
	Partial evidence “For almost a century, teams from Geismar have been bringing their passion and expertise to the development of rail transport.” Source: RevenueBase Database · checked Sep 17, 2026
9	ATIF	Indirect evidence	St.-denis, FranceHQ checked Sep 17, 2026	51-200	176 contacts →
	Indirect evidence “NOTRE MISSION : DÉPLOYER LES RÉSEAUX FERROVIAIRES DE DEMAIN 19 ans d’expérience et de défis relevés avec nos clients sur leurs projets de déploiement de réseaux ferroviaires, ça…” Source: RevenueBase Database · checked Sep 17, 2026
10	Eurorail Regiorail France	Indirect evidence	Le Boulou, FranceHQ checked Sep 17, 2026	201-500	152 contacts →
	Indirect evidence “Bienvenue sur la page d'EURORAIL et REGIORAIL France!” Source: RevenueBase Database · checked Sep 17, 2026
11	ACEPP	Indirect evidence	Lyon, FranceHQ checked Sep 17, 2026	51-200	144 contacts →
	Indirect evidence “INGÉNIERISTE DE LA CONSTRUCTION DES INFRASTRUCTURES COMPLEXES Pour garantir à nos clients, le transfert réussi à l’exploitant des d’infrastructures complexes, notre département…” Source: RevenueBase Database · checked Sep 17, 2026
12	OCY Technologies	Indirect evidence	Levallois Perret, FranceHQ checked Sep 17, 2026	51-200	139 contacts →
	Indirect evidence “OCY Technologies est une société de conseil et d’assistance technique spécialisée en ingénierie ferroviaire et dans l’énergie.” Source: RevenueBase Database · checked Sep 17, 2026
13	Masteris	Partial evidence	Saint-denis, FranceHQ checked Sep 17, 2026	51-200	135 contacts →
	Partial evidence “Specialist in maintenance of rolling stock and railway engineering, MASTERIS - a subsidiary of SNCF Voyageurs - offers its clients made-to-measure solutions to improve the…” Source: RevenueBase Database · checked Sep 17, 2026
14	Colas Rail Infra Services	Partial evidence	Louveciennes, FranceHQ checked Sep 17, 2026	201-500	122 contacts →
	Partial evidence “Colas Rail Infra Services (CRIS) est une filiale de Colas Rail, créée en 2015, dont le cœur de métier est la mise en sécurité des chantiers ferroviaires.” Source: RevenueBase Database · checked Sep 17, 2026
15	Socofer France	Indirect evidence	Saint-pierre-des-corps, FranceHQ checked Sep 17, 2026	51-200	119 contacts →
	Indirect evidence “Established since 1920 and formerly named : “Etablissements Billard”, Socofer splits its activities in 4 distinct sectors :> Infrastructure : design and manufacturing of…” Source: RevenueBase Database · checked Sep 17, 2026
16	Inveho	Partial evidence	Levallois-perret, FranceHQ checked Sep 17, 2026	501-1,000	111 contacts →
	Partial evidence “INVEHO a company at the service of rail freight!” Source: RevenueBase Database · checked Sep 17, 2026
17	Oneside	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	51-200	107 contacts →
	Indirect evidence “Société de conseil en ingénierie, nous proposons notre expertise dans 3 domaines - Énergies & Industrie - Infrastructures Ferroviaires - Génie civil & Bâtiment.” Source: RevenueBase Database · checked Sep 17, 2026
18	Saferail SAS	Indirect evidence	Nantes, FranceHQ checked Sep 17, 2026	51-200	106 contacts →
	Indirect evidence “Présent depuis 2003 dans l’Ingénierie et l’Ingénierie-Conseil du Contrôle-Commande et Signalisation ferroviaire, SAFERAIL est aujourd’hui Leader dans son domaine en France.” Source: RevenueBase Database · checked Sep 17, 2026
19	FER Expert	Indirect evidence	Bruz, FranceHQ checked Sep 17, 2026	51-200	106 contacts →
	Indirect evidence “L’esprit toujours orienté vers le client, Fer Expert est la solution à tous vos besoins en termes de sécurisation et suivi technique de chantiers ferroviaires.” Source: RevenueBase Database · checked Sep 17, 2026
20	Delcourt Rail	Partial evidence	Mennecy, FranceHQ checked Sep 17, 2026	201-500	105 contacts →
	Partial evidence “DELCOURT RAIL est spécialisée dans la construction, le renouvellement et la maintenance de voies ferrées.” Source: RevenueBase Database · checked Sep 17, 2026
21	Perrier	Partial evidence	Saint-priest, FranceHQ checked Sep 17, 2026	201-500	98 contacts →
	Partial evidence “PERRIER TP is a civil engineering company based out of 13 Route de Lyon, Saint-Priest, Rhone-Alpes, France.” Source: RevenueBase Database · checked Sep 17, 2026
22	LES Sentinelles DU Rail	Partial evidence	Buc, FranceHQ checked Sep 17, 2026	51-200	92 contacts →
	Partial evidence “Créée en 2014, Les Sentinelles du rail est une entreprise de sécurisation des chantiers ferroviaires.” Source: RevenueBase Database · checked Sep 17, 2026
23	Lombardi Ingénierie France	Indirect evidence	Lyon, FranceHQ checked Sep 17, 2026	51-200	91 contacts →
	Indirect evidence “Créée en 1955 par Giovanni Lombardi en Suisse, Lombardi est une société de conseil en matière de services d’ingénierie.” Source: RevenueBase Database · checked Sep 17, 2026
24	Safety FER	Indirect evidence	Guyancourt, FranceHQ checked Sep 17, 2026	51-200	87 contacts →
	Indirect evidence “Depuis sa création en 2010, SAFETY FER développe son savoir-faire et diversifie son activité dans le but de réaliser des prestations de sécurité et de signalisation ferroviaires…” Source: RevenueBase Database · checked Sep 17, 2026
25	Securail	Indirect evidence	Rueil Malmaison, FranceHQ checked Sep 17, 2026	201-500	86 contacts →
	Indirect evidence “SECURAIL est une entreprise de sécurité ferroviaire.” 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 engineering services. 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 engineering services.
Partial evidence: Its own public description names part of rail engineering services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail engineering services. 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 258 rail engineering services based in France

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Rail engineering services based in France at a glance

As of Sep 17, 2026

31.6%Verified-email coverage

58.1Average contacts per company

11-50Median size (employees)

9.7%Largest-city concentration · Paris

Sep 17, 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 France, so it is reported there. Company counts and contact totals on this page are exact for France, over 258 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 engineering services, 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 France whose own description of what they do matches “rail engineering services”. 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 engineering services), 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 engineering services, and records with no verified work email. Companies headquartered outside France 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, 4,741 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.

Rail engineering services by metro

Rail engineering services in Paris25

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 engineering services, 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 engineering services are there based in France?

RevenueBase identified 258 rail engineering services headquartered in France 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?

ETF, headquartered in Rueil-Malmaison, tops this list with the largest team on record.

Which city has the most rail engineering services?

Paris leads with 25 headquartered companies, followed by Lyon (7) and Chelles (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 4,741 verified decision-maker contacts tracked across these 258 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.