Company lists · Data refreshed September 2026

Top 25 Rail signal systems providers based in France

Name: Rail signal systems providers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 105 companies tracked

RevenueBase identified 105 rail signal systems providers headquartered in France as of September 2026 and tracks 6,172 professional contacts across them, including 2,285 with verified work emails. Paris is the largest hub.

This list covers rail signal systems providers 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

105Companies

6,172Contacts tracked

2,285Verified emails

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The 25 largest rail signal systems providers based in France

Ranked by team size

Top 25 of 105 rail signal systems providers 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 signal systems providers: 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	Vossloh Switch Systems	Strong evidence	Rueil-malmaison, FranceHQ checked Sep 17, 2026	1,001-5,000	603 contacts →
	Strong 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
4	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
5	SCLE	Strong evidence	Toulouse, FranceHQ checked Sep 17, 2026	201-500	212 contacts →
	Strong evidence “Devices and systems for high-voltage substations and rail signaling” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	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
8	Saferail SAS	Partial evidence	Nantes, FranceHQ checked Sep 17, 2026	51-200	106 contacts →
	Partial 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
9	Safety FER	Partial evidence	Guyancourt, FranceHQ checked Sep 17, 2026	51-200	87 contacts →
	Partial 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
10	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
11	Squirel	Indirect evidence	St.-denis, FranceHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “SQUIREL est un spécialiste des systèmes d’information du secteur ferroviaire Depuis près de 15 ans, nous proposons les solutions les plus adaptées aux défis opérationnels et…” Source: RevenueBase Database · checked Sep 17, 2026
12	Catesis	Indirect evidence	Goussainville, FranceHQ checked Sep 17, 2026	51-200	65 contacts →
	Indirect evidence “CATESIS est une PME dynamique qualifiée par SNCF RESEAU et intervenant sur les domaines de la caténaire (Etudes d'exécutions, Travaux et Maintenance caténaire et LAC, Prestations…” Source: RevenueBase Database · checked Sep 17, 2026
13	FBO	Indirect evidence	Saint Junien, FranceHQ checked Sep 17, 2026	51-200	59 contacts →
	Indirect evidence “In 2006 FBO company results of the merge of the Company “Forges de Belles Ondes” founded in 1954 and “Pneumatic Union” established in 1961.” 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	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
16	SITS	Indirect evidence	Rosny-sur-seine, FranceHQ checked Sep 17, 2026	51-200	46 contacts →
	Indirect evidence “We are particularly specialised in the installation of cables and HDPE tubes for fibre optics along railway tracks.” Source: RevenueBase Database · checked Sep 17, 2026
17	TGSO	Partial evidence	Redon, FranceHQ checked Sep 17, 2026	11-50	36 contacts →
	Partial evidence “Créé en 1991, il y a plus de 30 ans, TGSO est un Bureau d’études en signalisation ferroviaire.” Source: RevenueBase Database · checked Sep 17, 2026
18	Vapé Rail International A Vossloh Company	Partial evidence	Montreal La Cluse, FranceHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “System Manufacturer for Railway infrastructure including Train, Tram, Subway and Tunnel Core Business: Plastic Part design, 3D Calculation (Mechanical stress), Simulation…” Source: RevenueBase Database · checked Sep 17, 2026
19	Terralpha	Indirect evidence	Saint-denis, FranceHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “Terralpha exploite un réseau de télécommunications sécurisé, ultra haut débit et à très faible latence, déployé le long des voies ferrées.” 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	Galland S.A.S	Indirect evidence	La Lande De Fronsac, FranceHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “La vocation de la société GALLAND est de réaliser des pièces pour les caténaires, qu'elles soient conventionnelles, grandes vitesses ou pour les transports urbains.” Source: RevenueBase Database · checked Sep 17, 2026
22	FS Signaling	Partial evidence	Strasbourg, FranceHQ checked Sep 17, 2026	201-500	20 contacts →
	Partial 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
23	Sintra	Partial evidence	Bouc-bel-air, FranceHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial 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
24	CFD	Partial evidence	Paris, FranceHQ checked Sep 17, 2026	201-500	18 contacts →
	Partial evidence “CFD offers a range of machines spanning the rail transport market, including suburban and regional trains, locomotives and freight trains.” Source: RevenueBase Database · checked Sep 17, 2026
25	Seca Systemes	Indirect evidence	Lyon, FranceHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Bienvenue sur la page officielle de SECA Ingénierie des Systèmes, entreprise spécialisée dans la conception et la réalisation de solutions innovantes dans le secteur 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 signal systems providers. 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 signal systems providers.
Partial evidence: Its own public description names part of rail signal systems providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail signal systems providers. 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 105 rail signal systems providers based in France

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Rail signal systems providers based in France at a glance

As of Sep 17, 2026

37.0%Verified-email coverage

58.8Average contacts per company

11-50Median size (employees)

10.5%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

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 105 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 signal systems providers, 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 signal systems providers”. 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 signal systems providers), 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 signal systems providers, 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, 2,285 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 signal systems providers, 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 signal systems providers are there based in France?

RevenueBase identified 105 rail signal systems providers 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 signal systems providers?

Paris leads with 11 headquartered companies, followed by Lyon (5) and Chelles (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 2,285 verified decision-maker contacts tracked across these 105 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.