Company lists · Data refreshed September 2026

Top 25 Railway compliance consulting firms based in France

RevenueBase identified 134 railway compliance consulting firms headquartered in France as of September 2026 and tracks 5,708 professional contacts across them, including 1,933 with verified work emails. Paris is the largest hub.

This list covers railway compliance consulting firms 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 29, 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 29, 2026 86% judged on-target in blind review
134Companies
5,708Contacts tracked
1,933Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest railway compliance consulting firms based in France

Ranked by team size
Top 25 of 134 railway compliance consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to railway compliance consulting firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceChelles, FranceHQ checked Sep 29, 20261,001-5,0001,109 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 29, 2026
2Strong evidenceLevallois-perret, FranceHQ checked Sep 29, 20261,001-5,0001,042 contacts →

Strong evidence

“JOIN US : contact@ikosconsulting.com IKOS is a leading technology consulting firm specialized in the Railway sector with an additional offer in Energy.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceParis, FranceHQ checked Sep 29, 20261,001-5,000714 contacts →

Indirect evidence

“Date de création : Février 2012 Groupe : SNCF Directeur : M.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceColmar, FranceHQ checked Sep 29, 2026501-1,000327 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 29, 2026
5Indirect evidenceBoulogne-billancourt, FranceHQ checked Sep 29, 2026201-500281 contacts →

Indirect evidence

“Fondée en 2014, INGEVA est une société spécialisée dans l'ingénierie de la mobilité durable.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceSt.-denis, FranceHQ checked Sep 29, 202651-200176 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceLevallois Perret, FranceHQ checked Sep 29, 202651-200139 contacts →

Indirect evidence

“OCY Technologies est une société de conseil et d’assistance technique spécialisée en ingénierie ferroviaire et dans l’énergie.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceLouveciennes, FranceHQ checked Sep 29, 2026201-500122 contacts →

Indirect evidence

“Colas Rail Infra Services (CRIS) est une filiale de Colas Rail, créée en 2015, dont le cœur de métier est la mise en sécurité des chantiers ferroviaires.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceParis, FranceHQ checked Sep 29, 202651-200107 contacts →

Indirect evidence

“Société de conseil en ingénierie, nous proposons notre expertise dans 3 domaines - Énergies & Industrie - Infrastructures Ferroviaires - Génie civil & Bâtiment.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceNantes, FranceHQ checked Sep 29, 202651-200106 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 29, 2026
11Indirect evidenceBruz, FranceHQ checked Sep 29, 202651-200106 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 29, 2026
12Indirect evidenceParis, FranceHQ checked Sep 29, 202651-20058 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceTaillades, FranceHQ checked Sep 29, 202611-5049 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 29, 2026
14Indirect evidenceTeteghem, FranceHQ checked Sep 29, 202651-20047 contacts →

Indirect evidence

“Au service de ses clients depuis 35 ans, TECHNIFRANCE, bureau d’études et d’ingénierie, spécialisé dans les secteurs suivants : • Architecture Navale – Expertises – Fluvial •…”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidencePringy, FranceHQ checked Sep 29, 202651-20042 contacts →

Indirect evidence

“TRANSALP RENOUVELLEMENT s'est créée pour répondre à l'appel d'offre des suites rapide de la période 2013-2017.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceRedon, FranceHQ checked Sep 29, 202611-5036 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 29, 2026
17Indirect evidenceIssy Les Moulineaux, FranceHQ checked Sep 29, 202651-20033 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5025 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 29, 2026
19Indirect evidenceBouc-bel-air, FranceHQ checked Sep 29, 202611-5018 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 29, 2026
20Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“Avenir Ferro est une société de conseil et de services en ingénierie, fondée en 2021, avec pour mission d’accompagner les acteurs du monde ferroviaire et des transports urbains à…”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLes Angles, FranceHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Fondée en 2006, Rail Concept est une société indépendante spécialisée dans les activités d’études et de conseil liées à la création et l’aménagement d’infrastructures et de…”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceVernon, FranceHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Notre société est spécialisée dans les services de conseil en ingénierie ferroviaire.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceLyon, FranceHQ checked Sep 29, 202611-5016 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 29, 2026
24Indirect evidenceScherwiller, FranceHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“Spécialiste des travaux de signalisation ferroviaire”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“UNIT GROUPE est un acteur indépendant, fondé fin 2017, spécialisé dans le conseil en gestion de projets, les études techniques, le BIM (Building Information Modeling) et les…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 134 railway compliance consulting firms based in France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,933 reachable decision-makers.

Free signup · no credit card

View the full list →

Railway compliance consulting firms based in France at a glance

As of Sep 29, 2026
33.9%Verified-email coverage
42.6Average contacts per company
1-10Median size (employees)
17.9%Largest-city concentration · Paris
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
72
11-50
34
51-200
17
201-500
5
501-1,000
1
1,001-5,000
5

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 134 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 railway compliance consulting firms, 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 “railway compliance consulting firms”. 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 railway compliance consulting firms), 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 railway compliance consulting firms, 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, 1,933 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 29, 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 railway compliance consulting firms, 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 railway compliance consulting firms are there based in France?

RevenueBase identified 134 railway compliance consulting firms 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 railway compliance consulting firms?

Paris leads with 24 headquartered companies, followed by Lyon (5) and Nantes (5).

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 1,933 verified decision-maker contacts tracked across these 134 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 134 railway compliance consulting firms based in France. Start with a free account, no credit card.

Download this list →

Related lists

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.