Company lists · Data refreshed September 2026

Top 15 Rail network monitoring solutions based in France

RevenueBase identified 30 rail network monitoring solutions headquartered in France as of September 2026 and tracks 2,793 professional contacts across them, including 1,129 with verified work emails. Paris is the largest hub.

This list covers rail network monitoring solutions 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
30Companies
2,793Contacts tracked
1,129Verified emails
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The 15 largest rail network monitoring solutions based in France

Ranked by team size
Top 15 of 30 rail network monitoring solutions 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 network monitoring solutions: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceChelles, FranceHQ checked Sep 17, 20261,001-5,0001,109 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
2Indirect evidenceParis, FranceHQ checked Sep 17, 20261,001-5,000714 contacts →

Indirect evidence

“Date de création : Février 2012 Groupe : SNCF Directeur : M.”

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceColmar, FranceHQ checked Sep 17, 2026501-1,000327 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
4Indirect evidenceNantes, FranceHQ checked Sep 17, 202651-200106 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
5Partial evidenceBruz, FranceHQ checked Sep 17, 202651-200106 contacts →

Partial 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
6Strong evidenceSaint-herblain, FranceHQ checked Sep 17, 202651-20033 contacts →

Strong evidence

“Expandium, a VIAVI Solutions company, is an innovative and leading provider of critical network monitoring solutions that uses the latest big data technologies, enhanced with…”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceBouc-bel-air, FranceHQ checked Sep 17, 202611-5018 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
8Partial evidenceMontpellier, FranceHQ checked Sep 17, 202611-5018 contacts →

Partial evidence

“Software publisher RAILwAI is a company dedicated to optimizing railway maintenance through data-driven solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceScherwiller, FranceHQ checked Sep 17, 202611-5014 contacts →

Indirect evidence

“Spécialiste des travaux de signalisation ferroviaire”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceParis, FranceHQ checked Sep 17, 202611-5011 contacts →

Partial evidence

“STUDY RAIL est une entreprise dynamique spécialisée dans l'ingénierie ferroviaire et urbaine, en pleine expansion sur les marchés français et internationaux.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceBagneux, FranceHQ checked Sep 17, 202651-20011 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 17, 2026
12Strong evidenceGuyancourt, FranceHQ checked Sep 17, 202611-5011 contacts →

Strong evidence

“VIAPIX Systems is the French leader in AI-enhanced road and rail monitoring solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceHaguenau, FranceHQ checked Sep 17, 202611-5010 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceFranceHQ checked Sep 17, 202611-507 contacts →

Indirect evidence

“FERWEST, entreprise de travaux et de prestations de sécurité ferroviaire.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceSaint-avertin, FranceHQ checked Sep 17, 20261-102 contacts →

Partial evidence

“https://phasetec.fr/ At PhaseTec, we are committed to elevating railway safety and reliability with solutions ranging from SIL2 to SIL4.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 15 of 30 rail network monitoring solutions based in France

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Rail network monitoring solutions based in France at a glance

As of Sep 17, 2026
40.4%Verified-email coverage
93.1Average contacts per company
11-50Median size (employees)
23.3%Largest-city concentration · Paris
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
10
51-200
7
201-500
1
501-1,000
1
1,001-5,000
3

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 30 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 network monitoring solutions, 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 network monitoring solutions”. 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 network monitoring solutions), 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 network monitoring solutions, 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, 1,129 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 network monitoring solutions, 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 network monitoring solutions are there based in France?

RevenueBase identified 30 rail network monitoring solutions 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 network monitoring solutions?

Paris leads with 7 headquartered companies, followed by Chelles (2) and Bagneux (1).

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 1,129 verified decision-maker contacts tracked across these 30 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.