Company lists · Data refreshed September 2026

Top 25 Railroad technology companies based in France

Name: Railroad technology companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 77 companies tracked

RevenueBase identified 77 company matches for railroad technology companies associated with France as of September 2026 and tracks 5,464 professional contacts across them, including 2,189 with verified work emails. Paris is the largest hub.

This list covers company matches for railroad technology companies associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

77Companies

5,464Contacts tracked

2,189Verified emails

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The 25 largest railroad technology companies based in France

Ranked by team size

Top 25 of 77 company matches for railroad technology companies based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	TSO	Exact match	Chelles, FranceHQ recorded Sep 17, 2026	1,001-5,000	1,109 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Ikos Group	Exact match	Levallois-perret, FranceHQ recorded Sep 17, 2026	1,001-5,000	1,042 contacts →
	Exact match “JOIN US : contact@ikosconsulting.com IKOS is a leading technology consulting firm specialized in the Railway sector with an additional offer in Energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Sferis	Exact match	Paris, FranceHQ recorded Sep 17, 2026	1,001-5,000	714 contacts →
	Exact match “Date de création : Février 2012 Groupe : SNCF Directeur : M.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Vossloh Switch Systems	Exact match	Rueil-malmaison, FranceHQ recorded Sep 17, 2026	1,001-5,000	603 contacts →
	Exact match “The Vossloh Switch Systems division develops and manufactures switch systems for rail infrastructure, which must be individually adapted to the customer and the project.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Geismar Rail Industry Technologies & Services	Exact match	Colmar, FranceHQ recorded Sep 17, 2026	501-1,000	327 contacts →
	Exact match “For almost a century, teams from Geismar have been bringing their passion and expertise to the development of rail transport.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	SCLE	Exact match	Toulouse, FranceHQ recorded Sep 17, 2026	201-500	212 contacts →
	Exact match “Devices and systems for high-voltage substations and rail signaling” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Socofer France	Exact match	Saint-pierre-des-corps, FranceHQ recorded Sep 17, 2026	51-200	119 contacts →
	Exact match “Established since 1920 and formerly named : “Etablissements Billard”, Socofer splits its activities in 4 distinct sectors :> Infrastructure : design and manufacturing of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Saferail SAS	Exact match	Nantes, FranceHQ recorded Sep 17, 2026	51-200	106 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Squirel	Exact match	St.-denis, FranceHQ recorded Sep 17, 2026	51-200	67 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Knorr-Bremse Tinqueux	Exact match	Tinqueux, FranceHQ recorded Sep 17, 2026	51-200	58 contacts →
	Exact match “Créée en 1972, Knorr-Bremse Systèmes Ferroviaires France est la filiale française du groupe Knorr-Bremse pour la branche ferroviaire.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Cibest Group	Exact match	Paris, FranceHQ recorded Sep 17, 2026	51-200	46 contacts →
	Exact match “Groupe industriel français, nous concevons, fabriquons et déployons des solutions dédiées au Transport Public depuis plus de 30 ans.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	TGSO	Exact match	Redon, FranceHQ recorded Sep 17, 2026	11-50	36 contacts →
	Exact match “Créé en 1991, il y a plus de 30 ans, TGSO est un Bureau d’études en signalisation ferroviaire.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	FS Signaling	Exact match	Strasbourg, FranceHQ recorded Sep 17, 2026	201-500	20 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Railwai	Exact match	Montpellier, FranceHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “Software publisher RAILwAI is a company dedicated to optimizing railway maintenance through data-driven solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Sintra	Exact match	Bouc-bel-air, FranceHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “SINTRA est une entreprise spécialisée dans le domaine de la signalisation ferroviaire depuis plus de 25 ans.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Terra-Consulting	Exact match	Vernon, FranceHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Notre société est spécialisée dans les services de conseil en ingénierie ferroviaire.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Seca Systemes	Exact match	Lyon, FranceHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Martin SIG	Exact match	Scherwiller, FranceHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “Spécialiste des travaux de signalisation ferroviaire” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Gertrude Saem	Exact match	Bordeaux, FranceHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “GERTRUDE Saem développe, installe et assure la maintenance de systèmes informatiques experts sur-mesure dans le domaine du transport.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Study Rail	Exact match	Paris, FranceHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “STUDY RAIL est une entreprise dynamique spécialisée dans l'ingénierie ferroviaire et urbaine, en pleine expansion sur les marchés français et internationaux.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Tagmaster France	Exact match	Bagneux, FranceHQ recorded Sep 17, 2026	51-200	11 contacts →
	Exact match “TagMaster est une société axée sur la conception et la commercialisation de systèmes et de solutions basés sur les technologies radio, radar ou magnétique.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Frauscher Sensor Technology France	Exact match	Haguenau, FranceHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	4nrj	Exact match	La Chaussée-saint-victor, FranceHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “4NRJ is an expert company in the development of innovative and efficient solutions for railway infrastructures.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Ferwest	Exact match	FranceHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “FERWEST, entreprise de travaux et de prestations de sécurité ferroviaire.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Devcsi	Exact match	Cosne-cours-sur-loire, FranceHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “DevCSI leads innovative projects, such as designing the LSAR for SNCF, compliant with MIL STD 1388 2B and standards.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “railroad technology companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 77 railroad technology companies based in France

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Railroad technology companies based in France at a glance

As of Sep 17, 2026

40.1%Verified-email coverage

71.0Average contacts per company

11-50Median size (employees)

16.9%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 77 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with France whose business descriptions match “railroad technology companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,189 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “railroad technology companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many railroad technology companies are there based in France?

RevenueBase identified 77 company matches for railroad technology companies associated with France as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

TSO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most railroad technology companies?

Paris leads with 13 company records, followed by Bouloc (2) and Chelles (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,189 professional contacts with verified work emails tracked across these 77 companies; direct dials are available where recorded.

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 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.