Company lists · Data refreshed September 2026

Top 25 Rail electrification companies based in France

Name: Rail electrification companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 418 companies tracked

RevenueBase identified 418 company matches for rail electrification companies associated with France as of September 2026 and tracks 8,817 professional contacts across them, including 2,838 with verified work emails. Paris is the largest hub.

This list covers company matches for rail electrification companies 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

418Companies

8,817Contacts tracked

2,838Verified emails

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The 25 largest rail electrification companies based in France

Ranked by team size

Top 25 of 418 company matches for rail electrification companies 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	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
2	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
3	Dalkia Electrotechnics	Exact match	Paris La Défense Cedex, FranceHQ recorded Sep 17, 2026	1,001-5,000	347 contacts →
	Exact match “Dalkia Electrotechnics entre dans une nouvelle ère et rejoint EDF business services!” 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	Groupe Allez	Exact match	Paris, FranceHQ recorded Sep 17, 2026	1,001-5,000	274 contacts →
	Exact match “Fondée en 1932 par Bernard Allez, la société ALLEZ s’est rapidement spécialisée dans la construction de réseaux électriques.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	SCLE	Exact match	Toulouse, FranceHQ recorded Sep 17, 2026	201-500	212 contacts →
	Exact match “Devices and systems for high-voltage substations and rail signaling” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Sovec Groupe	Exact match	Hindisheim, FranceHQ recorded Sep 17, 2026	201-500	193 contacts →
	Exact match “Créée en 1975, SOVEC Entreprises conçoit, réalise et maintient les installations électriques des professionnels de l’industrie, du tertiaire et du bâtiment en HT, BT, Automation…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Serpollet	Exact match	Vénissieux, FranceHQ recorded Sep 17, 2026	201-500	187 contacts →
	Exact match “Entreprise phare du groupe SERFIM, SERPOLLET possède un savoir-faire de 140 ans dans le domaine des travaux publics et développe ses compétences dans la création des réseaux…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	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
10	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
11	RTE International	Exact match	Courbevoie, FranceHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “RTE international is a consultancy and engineering company whose activities cover all areas of electricity transmission.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	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
13	Spie Thépault	Exact match	Cergy, FranceHQ recorded Sep 17, 2026	201-500	98 contacts →
	Exact match “SPIE Thépault est le spécialiste historique des réseaux électriques haute tension.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	LAFON	Exact match	Tremblay-En-France, FranceHQ recorded Sep 17, 2026	51-200	72 contacts →
	Exact match “LAFON conçoit, installe et assure la maintenance de vos installations électriques courants forts et faibles.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	ELO Énergie	Exact match	Grandchamp Des Fontaines, FranceHQ recorded Sep 17, 2026	51-200	65 contacts →
	Exact match “ELO énergie est spécialiste de l'expertise, de l'ingénierie et de la construction d‘installations haute et très haute tension depuis 2006.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Catesis	Exact match	Goussainville, FranceHQ recorded Sep 17, 2026	51-200	65 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Cide Elec	Exact match	Crosne, FranceHQ recorded Sep 17, 2026	51-200	63 contacts →
	Exact match “Créée en 1988, Cide Elec est une entreprise d’électricité générale, leader sur le marché des services électriques en Ile-de-France (courant fort, courant faible et rénovation en…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Enfrasys	Exact match	Rillieux-la-pape, FranceHQ recorded Sep 17, 2026	51-200	63 contacts →
	Exact match “Depuis plus de 40 ans, Enfrasys propose de mettre à la disposition de des projets qui lui sont confiés, son expertise des métiers de - Conception : FMDS, Conception, Avant…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Euptech	Exact match	Meylan, FranceHQ recorded Sep 17, 2026	11-50	61 contacts →
	Exact match “EUPTECH vous accompagne dans la mise en place de vos Travaux Neufs, Ingénierie, Rénovation & Maintenance, en France et à l’international.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Lautech	Exact match	Lanester, FranceHQ recorded Sep 17, 2026	51-200	60 contacts →
	Exact match “LAUTECH est une société du groupe ALLEZ, spécialisée dans la conception, la fabrication et la réalisation des - Postes de livraison au poste de transformation HTA/BT-…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	ENTRA	Exact match	Aubervilliers, FranceHQ recorded Sep 17, 2026	51-200	53 contacts →
	Exact match “Créée en 1945, la société ENTRA, filiale du Groupe SYLPA depuis 2017, ancrée historiquement sur le bassin économique de la Seine Saint Denis et du Val d'Oise, adresse ses…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	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
23	Jean Graniou	Exact match	St Laurent Du Var, FranceHQ recorded Sep 17, 2026	51-200	37 contacts →
	Exact match “Jean Graniou, filiale du groupe VINCI Energies, est un acteur incontournable dans le secteur de l'intégration et l'installation électrique.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	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
25	Capsim	Exact match	Aix-en-provence, FranceHQ recorded Sep 17, 2026	11-50	36 contacts →
	Exact match “CAPSIM is your specialist partner on the behaviour of electrical networks and electrotechnical systems.” 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 “rail electrification companies”. 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 418 rail electrification companies based in France

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Rail electrification companies based in France at a glance

As of Sep 17, 2026

32.2%Verified-email coverage

21.1Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · Paris

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

173

11-50

167

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 418 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 “rail electrification companies” 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 2,838 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 “rail electrification companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rail electrification companies are there based in France?

RevenueBase identified 418 company matches for rail electrification companies 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?

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

Which city has the most rail electrification companies?

Paris leads with 16 company records, followed by Lyon (4) and Toulouse (4).

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 2,838 professional contacts with verified work emails tracked across these 418 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.