Company lists · Data refreshed September 2026

Top 22 Rail infrastructure monitoring software based in France

Name: Rail infrastructure monitoring software based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 39 companies tracked

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, its RevenueBase Smart Search rating, 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 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 5, 2026 86% judged on-target in blind review

39Companies

2,540Contacts tracked

895Verified emails

25Mobile numbers

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The 22 largest rail infrastructure monitoring software based in France

Ranked by team size

Top 22 of 39 rail infrastructure monitoring software based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to rail infrastructure monitoring software: 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 5, 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 5, 2026
2	Geismar Rail Industry Technologies & Services	Partial evidence	Colmar, FranceHQ checked Sep 5, 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 5, 2026
3	SCLE	Partial evidence	Toulouse, FranceHQ checked Sep 5, 2026	201-500	212 contacts →
	Partial evidence “Devices and systems for high-voltage substations and rail signaling” Source: RevenueBase Database · checked Sep 5, 2026
4	Saferail SAS	Indirect evidence	Nantes, FranceHQ checked Sep 5, 2026	51-200	106 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 5, 2026
5	FER Expert	Indirect evidence	Bruz, FranceHQ checked Sep 5, 2026	51-200	106 contacts →
	Indirect 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 5, 2026
6	Squirel	Indirect evidence	St.-denis, FranceHQ checked Sep 5, 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 5, 2026
7	Expandium A Viavi Solutions Company	Partial evidence	Saint-herblain, FranceHQ checked Sep 5, 2026	51-200	33 contacts →
	Partial 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 5, 2026
8	Sintra	Indirect evidence	Bouc-bel-air, FranceHQ checked Sep 5, 2026	11-50	18 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 5, 2026
9	Railwai	Partial evidence	Montpellier, FranceHQ checked Sep 5, 2026	11-50	18 contacts →
	Partial evidence “Software publisher RAILwAI is a company dedicated to optimizing railway maintenance through data-driven solutions.” Source: RevenueBase Database · checked Sep 5, 2026
10	The Cross Product TCP	Partial evidence	Fontainebleau, FranceHQ checked Sep 5, 2026	1-10	16 contacts →
	Partial evidence “The Cross Product offers railway and highway softwares performing inspections, inventories, reverse engineering and business applications.” Source: RevenueBase Database · checked Sep 5, 2026
11	Seca Systemes	Indirect evidence	Lyon, FranceHQ checked Sep 5, 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 5, 2026
12	Study Rail	Partial evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	11 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 5, 2026
13	Tagmaster France	Indirect evidence	Bagneux, FranceHQ checked Sep 5, 2026	51-200	11 contacts →
	Indirect 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 5, 2026
14	Viapix Systems	Strong evidence	Guyancourt, FranceHQ checked Sep 5, 2026	11-50	11 contacts →
	Strong evidence “VIAPIX Systems is the French leader in AI-enhanced road and rail monitoring solutions.” Source: RevenueBase Database · checked Sep 5, 2026
15	Frauscher Sensor Technology France	Indirect evidence	Haguenau, FranceHQ checked Sep 5, 2026	11-50	10 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 5, 2026
16	4nrj	Partial evidence	La Chaussée-saint-victor, FranceHQ checked Sep 5, 2026	11-50	9 contacts →
	Partial evidence “4NRJ is an expert company in the development of innovative and efficient solutions for railway infrastructures.” Source: RevenueBase Database · checked Sep 5, 2026
17	Ferwest	Indirect evidence	FranceHQ checked Sep 5, 2026	11-50	7 contacts →
	Indirect evidence “FERWEST, entreprise de travaux et de prestations de sécurité ferroviaire.” Source: RevenueBase Database · checked Sep 5, 2026
18	invisensing.io	Strong evidence	Palaiseau, FranceHQ checked Sep 5, 2026	1-10	6 contacts →
	Strong evidence “Invisensing is a Paris-based high-tech startup providing innovative monitoring and operation optimization solutions for infrastructure through acoustic sensing and AI-powered…” Source: RevenueBase Database · checked Sep 5, 2026
19	Devcsi	Indirect evidence	Cosne-cours-sur-loire, FranceHQ checked Sep 5, 2026	1-10	4 contacts →
	Indirect evidence “DevCSI leads innovative projects, such as designing the LSAR for SNCF, compliant with MIL STD 1388 2B and standards.” Source: RevenueBase Database · checked Sep 5, 2026
20	Ferroneed	Indirect evidence	Clermont-ferrand, FranceHQ checked Sep 5, 2026	1-10	3 contacts →
	Indirect evidence “L’expertise ferroviaire au service de la performance digitale.” Source: RevenueBase Database · checked Sep 5, 2026
21	Rail Concept	Indirect evidence	Les Angles, FranceHQ checked Sep 5, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
22	Phasetec	Indirect evidence	Saint-avertin, FranceHQ checked Sep 5, 2026	1-10	2 contacts →
	Indirect 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 5, 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 infrastructure monitoring software. 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 infrastructure monitoring software.
Partial evidence: Its own public description names part of rail infrastructure monitoring software, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail infrastructure monitoring software. 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 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, 2026

35.2%Verified-email coverage

1.0%Mobile-number coverage

65.1Average contacts per company

11-50Median size (employees)

23.1%Largest-city concentration · Paris

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

8240–30

7031–60

061–90

090–180

1180+

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 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 infrastructure monitoring software”. 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 infrastructure monitoring software), 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 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 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, 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

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 infrastructure monitoring software, 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 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 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.