Company lists · Data refreshed September 2026

Top 25 Line maintenance service providers based in France

Name: Line maintenance service providers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 129 companies tracked

RevenueBase identified 129 line maintenance service providers headquartered in France as of September 2026 and tracks 6,097 professional contacts across them, including 1,509 with verified work emails. Paris is the largest hub.

This list covers line maintenance service providers 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 20, 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 20, 2026 86% judged on-target in blind review

129Companies

6,097Contacts tracked

1,509Verified emails

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The 25 largest line maintenance service providers based in France

Ranked by team size

Top 25 of 129 line maintenance service providers based in France, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to line maintenance service providers: 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	Indirect evidence	Chelles, FranceHQ checked Sep 20, 2026	1,001-5,000	1,109 contacts →
	Indirect 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 20, 2026
2	Sferis	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	1,001-5,000	714 contacts →
	Indirect evidence “Date de création : Février 2012 Groupe : SNCF Directeur : M.” Source: RevenueBase Database · checked Sep 20, 2026
3	Fives Maintenance	Partial evidence	Montévrain, FranceHQ checked Sep 20, 2026	501-1,000	416 contacts →
	Partial evidence “Spécialiste de la maintenance industrielle depuis plus de vingt ans, Fives intervient dans le cadre de contrats à obligation de résultats pour assurer la maintenance préventive…” Source: RevenueBase Database · checked Sep 20, 2026
4	Geismar Rail Industry Technologies & Services	Indirect evidence	Colmar, FranceHQ checked Sep 20, 2026	501-1,000	327 contacts →
	Indirect 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 20, 2026
5	Masteris	Partial evidence	Saint-denis, FranceHQ checked Sep 20, 2026	51-200	135 contacts →
	Partial evidence “Specialist in maintenance of rolling stock and railway engineering, MASTERIS - a subsidiary of SNCF Voyageurs - offers its clients made-to-measure solutions to improve the…” Source: RevenueBase Database · checked Sep 20, 2026
6	Spie Thépault	Indirect evidence	Cergy, FranceHQ checked Sep 20, 2026	201-500	98 contacts →
	Indirect evidence “SPIE Thépault est le spécialiste historique des réseaux électriques haute tension.” Source: RevenueBase Database · checked Sep 20, 2026
7	Ferrotract	Indirect evidence	St Pierre Des Corps, FranceHQ checked Sep 20, 2026	51-200	75 contacts →
	Indirect evidence “Ferrotract est une Entreprise Ferroviaire (EF) dynamique spécialisée en - Traction de trains de travaux (TTX)- Acheminements de matériels ferroviaires en autonomie sur le RFN-…” Source: RevenueBase Database · checked Sep 20, 2026
8	Euptech	Partial evidence	Meylan, FranceHQ checked Sep 20, 2026	11-50	61 contacts →
	Partial evidence “EUPTECH vous accompagne dans la mise en place de vos Travaux Neufs, Ingénierie, Rénovation & Maintenance, en France et à l’international.” Source: RevenueBase Database · checked Sep 20, 2026
9	Azurail	Indirect evidence	Taillades, FranceHQ checked Sep 20, 2026	11-50	49 contacts →
	Indirect evidence “La société AZURAIL est une entreprise spécialisée dans l’expertise, l’entretien et le renouvellement de réseaux ferroviaires, basée sur la commune de Coustellet à proximité…” Source: RevenueBase Database · checked Sep 20, 2026
10	Eureteq	Indirect evidence	Tarbes, FranceHQ checked Sep 20, 2026	51-200	45 contacts →
	Indirect evidence “EURETEQ est une société d'ingénierie indépendante dont les activités sont portées par 3 business units intervenant dans les domaines - des pipelines (BU CANA): Activité historique…” Source: RevenueBase Database · checked Sep 20, 2026
11	BC Maintenance Equipements Mobiles	Partial evidence	Gentilly, FranceHQ checked Sep 20, 2026	11-50	31 contacts →
	Partial evidence “Filiale du Groupe Baudin Châteauneuf, BC Maintenance a pour mission d’assurer à ses clients le suivi de leurs installations et de maintenir leur performance, leur niveau de…” Source: RevenueBase Database · checked Sep 20, 2026
12	Omnifer	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “OMNIFER propose des prestations d'expertise et des formations dans le domaine de l'infrastructure ferroviaire : voie et génie civil, caténaire, signalisation, conduite manœuvre…” Source: RevenueBase Database · checked Sep 20, 2026
13	Cirtéus	Indirect evidence	Courbevoie, FranceHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “Créée en septembre 2014, CIRTÉUS propose à ses clients industriels, producteurs et distributeurs d'électricité des prestations de services, d'études, de conseils et de formations…” Source: RevenueBase Database · checked Sep 20, 2026
14	Serpollet Dauphiné	Indirect evidence	Pontcharra, FranceHQ checked Sep 20, 2026	51-200	21 contacts →
	Indirect evidence “SERPOLLET Dauphiné, créée en 2011 pour couvrir le territoire isèrois, est spécialisée dans les réseaux de distribution (réseaux gaz et télécom, réseaux électriques aériens et…” Source: RevenueBase Database · checked Sep 20, 2026
15	Stepp Société DE Travaux D'équipements Publics ET Privés	Indirect evidence	Lampaul-guimiliau, FranceHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Notre raison d’être : « Œuvrer pour le développement et la durabilité des réseaux divers sur notre territoire » Nos valeurs : Confiance Solidarité Motivation La STEPP est…” Source: RevenueBase Database · checked Sep 20, 2026
16	Cteam Lignes Aériennes S.A.S	Indirect evidence	Monswiller, FranceHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “Passion, Expérience, Ecoute et Rigueur Cteam Lignes Aériennes SAS est un partenaire solide et fiable dans le domaine de la construction et rénovation des lignes électriques…” Source: RevenueBase Database · checked Sep 20, 2026
17	Restech Groupe Synelis	Indirect evidence	Crach, FranceHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “RESTECH intervient au quotidien pour les principaux concessionnaires de réseaux d’énergie et les syndicats d’électrification départementaux, métropoles, communes et collectivités.” Source: RevenueBase Database · checked Sep 20, 2026
18	IMT Solutions	Partial evidence	Tours, FranceHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Maintenance & travaux de magasins” Source: RevenueBase Database · checked Sep 20, 2026
19	Natis Consulting	Partial evidence	Roissy-En-France, FranceHQ checked Sep 20, 2026	201-500	12 contacts →
	Partial evidence “Société de maintenance” Source: RevenueBase Database · checked Sep 20, 2026
20	Study Rail	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect 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 20, 2026
21	SEL Groupe SAS	Indirect evidence	Merville, FranceHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Implanté dans le nord de la France, depuis sa création en SEL Groupe est un acteur incontournable dans les secteurs de l’électricité.” Source: RevenueBase Database · checked Sep 20, 2026
22	Loubsens	Partial evidence	Lons, FranceHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “Membre du Groupe Durolage, nous sommes spécialiste en maintenance industrielle dans le grand Sud-ouest, depuis plus de 50 ans, nous répondons à vos besoins dans les domaines - des…” Source: RevenueBase Database · checked Sep 20, 2026
23	Servap	Partial evidence	Chilly Mazarin, FranceHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “SERVAP est une société de maintenance des réseaux d'air et d'eau!” Source: RevenueBase Database · checked Sep 20, 2026
24	PRONK	Partial evidence	Segré, FranceHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “Pronk – Expertise technique itinérante depuis 2018 Implantée dans le Segréen depuis mai 2025, la société Pronk met à votre service son savoir-faire en maintenance et dépannage…” Source: RevenueBase Database · checked Sep 20, 2026
25	HTAB	Partial evidence	Orvault, FranceHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “Notre société a été fondée en octobre 2021 afin de vous proposer nos services en maintenance d'ouvrages Haute Tension.” Source: RevenueBase Database · checked Sep 20, 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: line maintenance service providers. 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 line maintenance service providers.
Partial evidence: Its own public description names part of line maintenance service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name line maintenance service providers. 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 129 line maintenance service providers based in France

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Line maintenance service providers based in France at a glance

As of Sep 20, 2026

24.7%Verified-email coverage

47.3Average contacts per company

11-50Median size (employees)

3.9%Largest-city concentration · Paris

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 129 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 line maintenance service providers, 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 “line maintenance service providers”. 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 line maintenance service providers), 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 line maintenance service providers, 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, 1,509 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 20, 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 line maintenance service providers, 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 line maintenance service providers are there based in France?

RevenueBase identified 129 line maintenance service providers 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 line maintenance service providers?

Paris leads with 5 headquartered companies, followed by Maubeuge (4) and Chelles (3).

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 1,509 verified decision-maker contacts tracked across these 129 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 20, 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.