Company lists · Data refreshed September 2026
Top 22 Rail infrastructure monitoring software based in France
RevenueBase identified 39 rail infrastructure monitoring software headquartered in France as of September 2026 and tracks 2,540 professional contacts across them, including 895 with verified work emails and 25 with mobile numbers. Paris is the largest hub.
This list covers rail infrastructure monitoring software 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.
The 22 largest rail infrastructure monitoring software based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | TSOPartial evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | Geismar Rail Industry Technologies & ServicesPartial evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | SCLEPartial evidence | 212 | |||
“Devices and systems for high-voltage substations and rail signaling” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Saferail SASIndirect evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | FER ExpertIndirect evidence | 106 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | SquirelIndirect evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | Expandium A Viavi Solutions CompanyPartial evidence | 33 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | SintraIndirect evidence | 18 | |||
“SINTRA est une entreprise spécialisée dans le domaine de la signalisation ferroviaire depuis plus de 25 ans.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 18 | ||||
“Software publisher RAILwAI is a company dedicated to optimizing railway maintenance through data-driven solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | The Cross Product TCPPartial evidence | 16 | |||
“The Cross Product offers railway and highway softwares performing inspections, inventories, reverse engineering and business applications.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Seca SystemesIndirect evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | Study RailPartial evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | Tagmaster FranceIndirect evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | Viapix SystemsStrong evidence | 11 | |||
“VIAPIX Systems is the French leader in AI-enhanced road and rail monitoring solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Frauscher Sensor Technology FranceIndirect evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 | ||||
“4NRJ is an expert company in the development of innovative and efficient solutions for railway infrastructures.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | FerwestIndirect evidence | 7 | |||
“FERWEST, entreprise de travaux et de prestations de sécurité ferroviaire.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | invisensing.ioStrong evidence | 6 | |||
“Invisensing is a Paris-based high-tech startup providing innovative monitoring and operation optimization solutions for infrastructure through acoustic sensing and AI-powered…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | FerroneedIndirect evidence | 3 | |||
“L’expertise ferroviaire au service de la performance digitale.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Rail ConceptIndirect evidence | 3 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | PhasetecIndirect evidence | 2 | |||
“https://phasetec.fr/ At PhaseTec, we are committed to elevating railway safety and reliability with solutions ranging from SIL2 to SIL4.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 22 of 39 rail infrastructure monitoring software based in France
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Rail infrastructure monitoring software based in France at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 infrastructure monitoring software, 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 “rail infrastructure monitoring software”. 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 rail infrastructure monitoring software, 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, 895 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 rail infrastructure monitoring software are there based in France?
RevenueBase identified 39 rail infrastructure monitoring software 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 infrastructure monitoring software?
Paris leads with 9 headquartered companies, followed by Palaiseau (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 895 verified decision-maker contacts tracked across these 39 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.
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