Company lists · Data refreshed September 2026

Top 25 Railroad engineering firms based in France

Name: Railroad engineering firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 118 companies tracked

RevenueBase identified 118 company matches for railroad engineering firms associated with France as of September 2026 and tracks 6,688 professional contacts across them, including 2,358 with verified work emails. Paris is the largest hub.

This list covers company matches for railroad engineering firms associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

118Companies

6,688Contacts tracked

2,358Verified emails

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The 25 largest railroad engineering firms based in France

Ranked by team size

Top 25 of 118 company matches for railroad engineering firms based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Colas France	Exact match	Paris, FranceHQ recorded Sep 17, 2026	10001+	1,205 contacts →
	Exact match “Le groupe Colas est leader mondial de la construction, de l'entretien et de la maintenance des infrastructures de transport.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	TSO	Exact match	Chelles, FranceHQ recorded Sep 17, 2026	1,001-5,000	1,109 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Sferis	Exact match	Paris, FranceHQ recorded Sep 17, 2026	1,001-5,000	714 contacts →
	Exact match “Date de création : Février 2012 Groupe : SNCF Directeur : M.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Geismar Rail Industry Technologies & Services	Exact match	Colmar, FranceHQ recorded Sep 17, 2026	501-1,000	327 contacts →
	Exact match “For almost a century, teams from Geismar have been bringing their passion and expertise to the development of rail transport.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	ATIF	Exact match	St.-denis, FranceHQ recorded Sep 17, 2026	51-200	176 contacts →
	Exact match “NOTRE MISSION : DÉPLOYER LES RÉSEAUX FERROVIAIRES DE DEMAIN 19 ans d’expérience et de défis relevés avec nos clients sur leurs projets de déploiement de réseaux ferroviaires, ça…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	OCY Technologies	Exact match	Levallois Perret, FranceHQ recorded Sep 17, 2026	51-200	139 contacts →
	Exact match “OCY Technologies est une société de conseil et d’assistance technique spécialisée en ingénierie ferroviaire et dans l’énergie.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Oneside	Exact match	Paris, FranceHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “Société de conseil en ingénierie, nous proposons notre expertise dans 3 domaines - Énergies & Industrie - Infrastructures Ferroviaires - Génie civil & Bâtiment.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Saferail SAS	Exact match	Nantes, FranceHQ recorded Sep 17, 2026	51-200	106 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Delcourt Rail	Exact match	Mennecy, FranceHQ recorded Sep 17, 2026	201-500	105 contacts →
	Exact match “DELCOURT RAIL est spécialisée dans la construction, le renouvellement et la maintenance de voies ferrées.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Perrier	Exact match	Saint-priest, FranceHQ recorded Sep 17, 2026	201-500	98 contacts →
	Exact match “PERRIER TP is a civil engineering company based out of 13 Route de Lyon, Saint-Priest, Rhone-Alpes, France.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	MOTER	Exact match	Mérignac, FranceHQ recorded Sep 17, 2026	51-200	64 contacts →
	Exact match “Moter et Sanz TP Médoc : aménageurs de la Gironde depuis plus de 50 ans Qui sommes-nous?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Fer-Play	Exact match	Paris, FranceHQ recorded Sep 17, 2026	51-200	58 contacts →
	Exact match “Bureau d’études indépendant exclusivement dédié au domaine ferroviaire, nous accompagnons depuis 2016 les entreprises et les territoires pour des missions complètes de MOE et…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	CLMTP	Exact match	Sablé Sur Sarthe, FranceHQ recorded Sep 17, 2026	11-50	49 contacts →
	Exact match “CLMTP est une entreprise de Travaux Publics, plus particulièrement spécialisée dans les travaux public ferroviaires, génie civil et travaux fluviaux.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	DVF	Exact match	Chevigny St Sauveur, FranceHQ recorded Sep 17, 2026	51-200	49 contacts →
	Exact match “DVF - Travaux Ferroviaires” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Transalp Renouvellement	Exact match	Pringy, FranceHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “TRANSALP RENOUVELLEMENT s'est créée pour répondre à l'appel d'offre des suites rapide de la période 2013-2017.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Fornoni	Exact match	Rosières-aux-salines, FranceHQ recorded Sep 17, 2026	51-200	38 contacts →
	Exact match “Entreprise spécialisée dans le domaine des travaux ferroviaires et de location de pelles rail-route.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	TGSO	Exact match	Redon, FranceHQ recorded Sep 17, 2026	11-50	36 contacts →
	Exact match “Créé en 1991, il y a plus de 30 ans, TGSO est un Bureau d’études en signalisation ferroviaire.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Caroni Génie Civil	Exact match	Lille, FranceHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “Caroni Génie Civil, filiale de VINCI Construction, est spécialisée dans le domaine des travaux publics et du génie civil dans les Hauts-de-France.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Pagoline Groupe	Exact match	Saint-herblain, FranceHQ recorded Sep 17, 2026	501-1,000	34 contacts →
	Exact match “NOTRE MISSION : DÉPLOYER LES RÉSEAUX DE DEMAIN 9 ans d’expérience et de défis relevés avec nos clients sur leurs projets de déploiement de réseaux d’énergie et ferroviaire, ça…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	SOL Conseil	Exact match	Massy, FranceHQ recorded Sep 17, 2026	51-200	34 contacts →
	Exact match “Avec plus de 40 ans de savoir-faire dans le domaine de la Géotechnique, SOL CONSEIL accompagne ses clients sur tous types de projets en bâtiment, génie civil, aménagements…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Aptitude Experts	Exact match	Issy Les Moulineaux, FranceHQ recorded Sep 17, 2026	51-200	33 contacts →
	Exact match “APTITUDE EXPERTS : L’INGÉNIERIE SUR-MESURE, AU SERVICE DES MOBILITÉS DE DEMAIN Nouveaux besoins de mobilités, attractivité régionale et changements dans le domaine des loisirs et…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Vapé Rail International A Vossloh Company	Exact match	Montreal La Cluse, FranceHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “System Manufacturer for Railway infrastructure including Train, Tram, Subway and Tunnel Core Business: Plastic Part design, 3D Calculation (Mechanical stress), Simulation…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Etablissements R.Legrand	Exact match	Couzon-au-mont-d'or, FranceHQ recorded Sep 17, 2026	51-200	31 contacts →
	Exact match “Fondée en 1956 par René LEGRAND et son épouse, l’entreprise se développe rapidement dans le domaine du génie civil ferroviaire, de la signalisation et de la serrurerie.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	UIF Atlantique	Exact match	Nantes, FranceHQ recorded Sep 17, 2026	11-50	27 contacts →
	Exact match “Précédemment connue sous la dénomination AVF-TP ou Atlantique Voies Ferrées Travaux Publics, l'entreprise, filiale Ouest du Groupe UNIFER reprendra dès 2022 l’appellation…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Omnifer	Exact match	Paris, FranceHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match “OMNIFER propose des prestations d'expertise et des formations dans le domaine de l'infrastructure ferroviaire : voie et génie civil, caténaire, signalisation, conduite manœuvre…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “railroad engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 118 railroad engineering firms based in France

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Railroad engineering firms based in France at a glance

As of Sep 17, 2026

35.3%Verified-email coverage

56.7Average contacts per company

11-50Median size (employees)

13.6%Largest-city concentration · Paris

Sep 17, 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 118 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with France whose business descriptions match “railroad engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,358 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “railroad engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many railroad engineering firms are there based in France?

RevenueBase identified 118 company matches for railroad engineering firms associated with France as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Colas France tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most railroad engineering firms?

Paris leads with 16 company records, followed by Bouloc (2) and Chelles (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,358 professional contacts with verified work emails tracked across these 118 companies; direct dials are available where recorded.

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 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.