Company lists · Data refreshed September 2026

Top 25 Railway automation software companies based in France

Name: Railway automation software companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 65 companies tracked

RevenueBase identified 65 railway automation software companies headquartered in France as of September 2026 and tracks 3,275 professional contacts across them, including 1,323 with verified work emails and 41 with mobile numbers. Paris is the largest hub.

This list covers railway automation software companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

65Companies

3,275Contacts tracked

1,323Verified emails

41Mobile numbers

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The 25 largest railway automation software companies based in France

Ranked by team size

Top 25 of 65 railway automation software companies based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names railway automation software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	TSOIndirect evidence	Chelles, FranceHQ checked Sep 5, 2026	1,001-5,000	1,109
	“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: company website · checked Sep 5, 2026
2	Vossloh Switch SystemsIndirect evidence	Rueil-malmaison, FranceHQ checked Sep 5, 2026	1,001-5,000	603
	“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: company website · checked Sep 5, 2026
3	Geismar Rail Industry Technologies & ServicesIndirect evidence	Colmar, FranceHQ checked Sep 5, 2026	501-1,000	327
	“For almost a century, teams from Geismar have been bringing their passion and expertise to the development of rail transport.” Source: company website · checked Sep 5, 2026
4	SCLEIndirect evidence	Toulouse, FranceHQ checked Sep 5, 2026	201-500	212
	“Devices and systems for high-voltage substations and rail signaling” Source: company website · checked Sep 5, 2026
5	Saferail SASIndirect evidence	Nantes, FranceHQ checked Sep 5, 2026	51-200	106
	“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: company website · checked Sep 5, 2026
6	SquirelIndirect evidence	St.-denis, FranceHQ checked Sep 5, 2026	51-200	67
	“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: company website · checked Sep 5, 2026
7	Cibest GroupIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	46
	“Groupe industriel français, nous concevons, fabriquons et déployons des solutions dédiées au Transport Public depuis plus de 30 ans.” Source: company website · checked Sep 5, 2026
8	TGSOIndirect evidence	Redon, FranceHQ checked Sep 5, 2026	11-50	36
	“Créé en 1991, il y a plus de 30 ans, TGSO est un Bureau d’études en signalisation ferroviaire.” Source: company website · checked Sep 5, 2026
9	FS SignalingIndirect evidence	Strasbourg, FranceHQ checked Sep 5, 2026	201-500	20
	“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: company website · checked Sep 5, 2026
10	ACNSPartial evidence	Milly La Forêt, FranceHQ checked Sep 5, 2026	11-50	19
	“ACNS est un Bureau d’Etudes dans le domaine de la Commande Numérique, des Automatismes Industriels et de la Robotique.” Source: company website · checked Sep 5, 2026
11	IntemporaPartial evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	18
	“Intempora S.A has over 25 years of expertise in providing advanced and innovative software development solutions for complex real-time applications which play an essential role in…” Source: company website · checked Sep 5, 2026
12	SintraIndirect evidence	Bouc-bel-air, FranceHQ checked Sep 5, 2026	11-50	18
	“SINTRA est une entreprise spécialisée dans le domaine de la signalisation ferroviaire depuis plus de 25 ans.” Source: company website · checked Sep 5, 2026
13	RailwaiStrong evidence	Montpellier, FranceHQ checked Sep 5, 2026	11-50	18
	“Software publisher RAILwAI is a company dedicated to optimizing railway maintenance through data-driven solutions.” Source: company website · checked Sep 5, 2026
14	The Cross Product TCPStrong evidence	Fontainebleau, FranceHQ checked Sep 5, 2026	1-10	16
	“The Cross Product offers railway and highway softwares performing inspections, inventories, reverse engineering and business applications.” Source: company website · checked Sep 5, 2026
15	Seca SystemesIndirect evidence	Lyon, FranceHQ checked Sep 5, 2026	11-50	16
	“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: company website · checked Sep 5, 2026
16	Martin SIGIndirect evidence	Scherwiller, FranceHQ checked Sep 5, 2026	11-50	14
	“Spécialiste des travaux de signalisation ferroviaire” Source: company website · checked Sep 5, 2026
17	Gertrude SaemIndirect evidence	Bordeaux, FranceHQ checked Sep 5, 2026	11-50	12
	“GERTRUDE Saem développe, installe et assure la maintenance de systèmes informatiques experts sur-mesure dans le domaine du transport.” Source: company website · checked Sep 5, 2026
18	Study RailIndirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	11
	“STUDY RAIL est une entreprise dynamique spécialisée dans l'ingénierie ferroviaire et urbaine, en pleine expansion sur les marchés français et internationaux.” Source: company website · checked Sep 5, 2026
19	Tagmaster FranceIndirect evidence	Bagneux, FranceHQ checked Sep 5, 2026	51-200	11
	“TagMaster est une société axée sur la conception et la commercialisation de systèmes et de solutions basés sur les technologies radio, radar ou magnétique.” Source: company website · checked Sep 5, 2026
20	Frauscher Sensor Technology FranceIndirect evidence	Haguenau, FranceHQ checked Sep 5, 2026	11-50	10
	“Frauscher Sensor Technology fournit une des gammes de composants les plus fiables au monde pour la détection des trains et le contrôle des objets en bord de voie.” Source: company website · checked Sep 5, 2026
21	4nrjPartial evidence	La Chaussée-saint-victor, FranceHQ checked Sep 5, 2026	11-50	9
	“4NRJ is an expert company in the development of innovative and efficient solutions for railway infrastructures.” Source: company website · checked Sep 5, 2026
22	RTIPartial evidence	Évreux, FranceHQ checked Sep 5, 2026	11-50	7
	“R.T.I étudie et réalise les automatismes de vos machines, lignes de fabrication, postes de contrôle.” Source: company website · checked Sep 5, 2026
23	DevcsiIndirect evidence	Cosne-cours-sur-loire, FranceHQ checked Sep 5, 2026	1-10	4
	“DevCSI leads innovative projects, such as designing the LSAR for SNCF, compliant with MIL STD 1388 2B and standards.” Source: company website · checked Sep 5, 2026
24	Rail ConceptIndirect evidence	Les Angles, FranceHQ checked Sep 5, 2026	1-10	3
	Source: company website · checked Sep 5, 2026
25	FerroneedIndirect evidence	Clermont-ferrand, FranceHQ checked Sep 5, 2026	1-10	3
	“L’expertise ferroviaire au service de la performance digitale.” Source: company website · checked Sep 5, 2026

Showing 25 of 65 railway automation software companies based in France

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Railway automation software companies based in France at a glance

As of Sep 5, 2026

11-50Median size (employees)

ParisLargest hub · 14 HQs

41Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

1,219

31–60

61–90

90–180

180+

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 automation software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “railway automation software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among railway automation software companies, 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 an evidence 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, 1,323 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 5, 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

How many railway automation software companies are there based in France?

RevenueBase identified 65 railway automation software companies 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 railway automation software companies?

Paris leads with 14 headquartered companies, followed by Chelles (2) and Nantes (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 1,323 verified decision-maker contacts tracked across these 65 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 5, 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 SmartSearch, 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.