Company lists · Data refreshed September 2026

Top 25 Electrified rail system installers based in France

Name: Electrified rail system installers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 167 companies tracked

RevenueBase identified 167 electrified rail system installers headquartered in France as of September 2026 and tracks 4,798 professional contacts across them, including 1,804 with verified work emails. Paris is the largest hub.

This list covers electrified rail system installers 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 16, 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 16, 2026 86% judged on-target in blind review

167Companies

4,798Contacts tracked

1,804Verified emails

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The 25 largest electrified rail system installers based in France

Ranked by team size

Top 25 of 167 electrified rail system installers based in France, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electrified rail system installers: 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 16, 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 16, 2026
2	Sferis	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	1,001-5,000	714 contacts →
	Indirect evidence “Date de création : Février 2012 Groupe : SNCF Directeur : M.” Source: RevenueBase Database · checked Sep 16, 2026
3	Vossloh Switch Systems	Strong evidence	Rueil-malmaison, FranceHQ checked Sep 16, 2026	1,001-5,000	603 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 16, 2026
4	Geismar Rail Industry Technologies & Services	Partial evidence	Colmar, FranceHQ checked Sep 16, 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 16, 2026
5	SCLE	Strong evidence	Toulouse, FranceHQ checked Sep 16, 2026	201-500	212 contacts →
	Strong evidence “Devices and systems for high-voltage substations and rail signaling” Source: RevenueBase Database · checked Sep 16, 2026
6	Saferail SAS	Indirect evidence	Nantes, FranceHQ checked Sep 16, 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 16, 2026
7	Catesis	Indirect evidence	Goussainville, FranceHQ checked Sep 16, 2026	51-200	65 contacts →
	Indirect evidence “CATESIS est une PME dynamique qualifiée par SNCF RESEAU et intervenant sur les domaines de la caténaire (Etudes d'exécutions, Travaux et Maintenance caténaire et LAC, Prestations…” Source: RevenueBase Database · checked Sep 16, 2026
8	Sotrelec	Indirect evidence	Torcy, FranceHQ checked Sep 16, 2026	51-200	64 contacts →
	Indirect evidence “SOTRELEC \| L’électricité au service de la performance de vos bâtiments Depuis plus de 40 ans, SOTRELEC accompagne les acteurs du tertiaire, de l’industrie et du secteur public…” Source: RevenueBase Database · checked Sep 16, 2026
9	DVF	Indirect evidence	Chevigny St Sauveur, FranceHQ checked Sep 16, 2026	51-200	49 contacts →
	Indirect evidence “DVF - Travaux Ferroviaires” Source: RevenueBase Database · checked Sep 16, 2026
10	TGSO	Indirect evidence	Redon, FranceHQ checked Sep 16, 2026	11-50	36 contacts →
	Indirect evidence “Créé en 1991, il y a plus de 30 ans, TGSO est un Bureau d’études en signalisation ferroviaire.” Source: RevenueBase Database · checked Sep 16, 2026
11	Vapé Rail International A Vossloh Company	Partial evidence	Montreal La Cluse, FranceHQ checked Sep 16, 2026	11-50	33 contacts →
	Partial evidence “System Manufacturer for Railway infrastructure including Train, Tram, Subway and Tunnel Core Business: Plastic Part design, 3D Calculation (Mechanical stress), Simulation…” Source: RevenueBase Database · checked Sep 16, 2026
12	Galland S.A.S	Indirect evidence	La Lande De Fronsac, FranceHQ checked Sep 16, 2026	51-200	29 contacts →
	Indirect evidence “La vocation de la société GALLAND est de réaliser des pièces pour les caténaires, qu'elles soient conventionnelles, grandes vitesses ou pour les transports urbains.” Source: RevenueBase Database · checked Sep 16, 2026
13	FS Signaling	Indirect evidence	Strasbourg, FranceHQ checked Sep 16, 2026	201-500	20 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 16, 2026
14	Sintra	Indirect evidence	Bouc-bel-air, FranceHQ checked Sep 16, 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 16, 2026
15	IR Infras	Indirect evidence	La Courneuve, FranceHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “IR Infras est une ingénierie de réseaux d'infrastructures d'équipements CFO CFA (contrôle d'accès, SSI, Vidéo, fibre optique, audio.).” Source: RevenueBase Database · checked Sep 16, 2026
16	Elec Ouest	Indirect evidence	Taden, FranceHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Elec Ouest intervient dans le domaine de l’électricité courants forts et faibles pour nos clients tertiaires et industriels; en particulier dans le secteur des surfaces…” Source: RevenueBase Database · checked Sep 16, 2026
17	Martin SIG	Indirect evidence	Scherwiller, FranceHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Spécialiste des travaux de signalisation ferroviaire” Source: RevenueBase Database · checked Sep 16, 2026
18	Porra Electricite	Indirect evidence	Guipavas, FranceHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Depuis plus de 77 ans, Porra vous accompagne dans vos travaux d’électricité générale dans le Finistère.” Source: RevenueBase Database · checked Sep 16, 2026
19	Gounot	Indirect evidence	Boissy St Leger Cedex, FranceHQ checked Sep 16, 2026	11-50	13 contacts →
	Indirect evidence “Electricité industrielle courant fort HT / BT - Installation provisoire de chantier et événementiel - Activité tableautier - Conception et installation de postes HT/BT et…” Source: RevenueBase Database · checked Sep 16, 2026
20	Cesa Groupe	Partial evidence	Meudon, FranceHQ checked Sep 16, 2026	51-200	12 contacts →
	Partial evidence “Depuis 1981, des équipes dédiées en courants forts et courants faibles pour vous accompagner de la phase étude jusqu’à la maintenance, en intégrant les systèmes de communication…” Source: RevenueBase Database · checked Sep 16, 2026
21	Study Rail	Partial evidence	Paris, FranceHQ checked Sep 16, 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 16, 2026
22	Bonazza	Indirect evidence	Grenoble, FranceHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “BONAZZA is an electrical/electronic manufacturing company based out of 14 RUE PROSPER MERIMEE, GRENOBLE, France.” Source: RevenueBase Database · checked Sep 16, 2026
23	Fradin Bretton	Indirect evidence	Bressuire, FranceHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “FRADIN BRETTON is a company based out of France.” Source: RevenueBase Database · checked Sep 16, 2026
24	LTIE	Indirect evidence	Elancourt, FranceHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “LTie Installation courant fort / courant faible” Source: RevenueBase Database · checked Sep 16, 2026
25	Carelec SAS	Indirect evidence	Le Vaudreuil, FranceHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “Entreprise d'Electricité Générale : Borne de charge IRVE, Fibre Optique, Anti intrusion et Vidéo surveillance, Installation moyenne et basse tension, Protection Incendie…” Source: RevenueBase Database · checked Sep 16, 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: electrified rail system installers. 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 electrified rail system installers.
Partial evidence: Its own public description names part of electrified rail system installers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrified rail system installers. 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 25 of 167 electrified rail system installers based in France

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Electrified rail system installers based in France at a glance

As of Sep 16, 2026

37.6%Verified-email coverage

28.7Average contacts per company

1-10Median size (employees)

5.4%Largest-city concentration · Paris

Sep 16, 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 167 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 electrified rail system installers, 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 “electrified rail system installers”. 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 electrified rail system installers), 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 electrified rail system installers, 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, 1,804 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 16, 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 electrified rail system installers, 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 electrified rail system installers are there based in France?

RevenueBase identified 167 electrified rail system installers 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 electrified rail system installers?

Paris leads with 9 headquartered companies, followed by Chelles (3) and Le Vaudreuil (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 1,804 verified decision-maker contacts tracked across these 167 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 16, 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.