Company lists · Data refreshed September 2026

Top 25 Rail maintenance services based in France

Name: Rail maintenance 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 121 companies tracked

RevenueBase identified 121 rail maintenance services headquartered in France as of September 2026 and tracks 7,105 professional contacts across them, including 1,844 with verified work emails. Paris is the largest hub.

This list covers rail maintenance 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

121Companies

7,105Contacts tracked

1,844Verified emails

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The 25 largest rail maintenance services based in France

Ranked by team size

Top 25 of 121 rail maintenance 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 maintenance 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	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
2	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
3	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
4	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
5	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
6	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
7	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
8	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
9	Delcourt Rail	Strong evidence	Mennecy, FranceHQ checked Sep 17, 2026	201-500	105 contacts →
	Strong evidence “DELCOURT RAIL est spécialisée dans la construction, le renouvellement et la maintenance de voies ferrées.” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	ACC M	Indirect evidence	Clermont Ferrand, FranceHQ checked Sep 17, 2026	201-500	76 contacts →
	Indirect evidence “ACC M – Patrimoine ferroviaire, modernité durable au service des territoires Depuis 1919, ACC M s’engage dans la préservation et la remise en valeur des matériels roulants…” Source: RevenueBase Database · checked Sep 17, 2026
12	Ferrotract	Indirect evidence	St Pierre Des Corps, FranceHQ checked Sep 17, 2026	51-200	75 contacts →
	Indirect evidence “Ferrotract est une Entreprise Ferroviaire (EF) dynamique spécialisée en - Traction de trains de travaux (TTX)- Acheminements de matériels ferroviaires en autonomie sur le RFN-…” Source: RevenueBase Database · checked Sep 17, 2026
13	RM System France	Partial evidence	Uberach, FranceHQ checked Sep 17, 2026	201-500	65 contacts →
	Partial evidence “For nearly 20 years, RM System has been a trusted industrial partner in the rail sector.” Source: RevenueBase Database · checked Sep 17, 2026
14	Knorr-Bremse Tinqueux	Indirect evidence	Tinqueux, FranceHQ checked Sep 17, 2026	51-200	58 contacts →
	Indirect evidence “Créée en 1972, Knorr-Bremse Systèmes Ferroviaires France est la filiale française du groupe Knorr-Bremse pour la branche ferroviaire.” Source: RevenueBase Database · checked Sep 17, 2026
15	Fer-Play	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	51-200	58 contacts →
	Indirect evidence “Bureau d’études indépendant exclusivement dédié au domaine ferroviaire, nous accompagnons depuis 2016 les entreprises et les territoires pour des missions complètes de MOE et…” Source: RevenueBase Database · checked Sep 17, 2026
16	DVF	Indirect evidence	Chevigny St Sauveur, FranceHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “DVF - Travaux Ferroviaires” Source: RevenueBase Database · checked Sep 17, 2026
17	Azurail	Indirect evidence	Taillades, FranceHQ checked Sep 17, 2026	11-50	49 contacts →
	Indirect evidence “La société AZURAIL est une entreprise spécialisée dans l’expertise, l’entretien et le renouvellement de réseaux ferroviaires, basée sur la commune de Coustellet à proximité…” Source: RevenueBase Database · checked Sep 17, 2026
18	Transalp Renouvellement	Indirect evidence	Pringy, FranceHQ checked Sep 17, 2026	51-200	42 contacts →
	Indirect evidence “TRANSALP RENOUVELLEMENT s'est créée pour répondre à l'appel d'offre des suites rapide de la période 2013-2017.” Source: RevenueBase Database · checked Sep 17, 2026
19	Erion France	Partial evidence	Montceau Les Mines, FranceHQ checked Sep 17, 2026	11-50	41 contacts →
	Partial evidence “Entreprise de maintenance dans le secteur du transport ferroviaire” Source: RevenueBase Database · checked Sep 17, 2026
20	Egenie	Indirect evidence	Saint-sulpice, FranceHQ checked Sep 17, 2026	51-200	30 contacts →
	Indirect evidence “Chez EGENIE, nous sommes spécialisés dans la pose, le renouvellement et l’entretien de voies ferrées et intervenons essentiellement dans le Sud de la France.” Source: RevenueBase Database · checked Sep 17, 2026
21	UIF Atlantique	Indirect evidence	Nantes, FranceHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “Précédemment connue sous la dénomination AVF-TP ou Atlantique Voies Ferrées Travaux Publics, l'entreprise, filiale Ouest du Groupe UNIFER reprendra dès 2022 l’appellation…” Source: RevenueBase Database · checked Sep 17, 2026
22	Omnifer	Indirect evidence	Paris, FranceHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “OMNIFER propose des prestations d'expertise et des formations dans le domaine de l'infrastructure ferroviaire : voie et génie civil, caténaire, signalisation, conduite manœuvre…” Source: RevenueBase Database · checked Sep 17, 2026
23	Arterail	Indirect evidence	Lille, FranceHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “Arterail est un fournisseur de services pour les propriétaires de matériel roulant ferroviaire et les opérateurs.” Source: RevenueBase Database · checked Sep 17, 2026
24	FS Signaling	Indirect evidence	Strasbourg, FranceHQ checked Sep 17, 2026	201-500	20 contacts →
	Indirect evidence “FS SIGNALING, entreprise spécialisée dans le domaine des travaux de signalisation ferroviaire, réalise tous les travaux de câblage et de génie civil indispensables à la création…” Source: RevenueBase Database · checked Sep 17, 2026
25	Sintra	Indirect evidence	Bouc-bel-air, FranceHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “SINTRA est une entreprise spécialisée dans le domaine de la signalisation ferroviaire depuis plus de 25 ans.” 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 maintenance 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 maintenance services.
Partial evidence: Its own public description names part of rail maintenance services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail maintenance 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 121 rail maintenance services based in France

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Rail maintenance services based in France at a glance

As of Sep 17, 2026

26.0%Verified-email coverage

58.7Average contacts per company

11-50Median size (employees)

7.4%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 121 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 maintenance 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 maintenance 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 maintenance 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 maintenance 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, 1,844 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 maintenance 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 maintenance services are there based in France?

RevenueBase identified 121 rail maintenance 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?

TSO, headquartered in Chelles, tops this list with the largest team on record.

Which city has the most rail maintenance services?

Paris leads with 9 headquartered companies, followed by Chelles (3) and Bordeaux (2).

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 1,844 verified decision-maker contacts tracked across these 121 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.