Private company

SOFRETU

French transport consulting firm

SOFRETU (Société française d'études et de réalisations de transports urbains) was a French transport consulting and project development firm created in 1961 by the RATP. It has been merged with Sofrerail - a SNCF branch, in 1995 and became Systra. It has been notably involved in the metro planning for Montréal, Mexico City, Santiago de Chile and Tehran.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

1961Founded1

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SOFRETU (Société française d'études et de réalisations de transports urbains) was a French transport consulting and project development firm created in 1961 by the RATP. It has been merged with Sofrerail - a SNCF branch, in 1995 and became Systra. It has been notably involved in the metro planning for Montréal, Mexico City, Santiago de Chile and Tehran.2

Corporate structure

SOFRETU is part of a group headed by RATP. 25 entities, 5 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • RATP Paris, France
    • SOFRETU
    • Bath Bus Company Subsidiary
    • Epsom Coaches Subsidiary · Epsom
    • Ixxi Subsidiary · Paris
    • London United Busways Subsidiary · Twickenham, United Kingdom
    • Open Loop New York Subsidiary · New York City
    • Quality Line Subsidiary · Epsom
    • RATP El Djazaïr Subsidiary · Algiers, Algeria
    • Reolian Public Transport Co. Subsidiary · Macau
    • Selwyns Travel Subsidiary · Runcorn, United Kingdom
    • The Original Tour Subsidiary
    • Yellow Buses Subsidiary
    • Compagnie des transports du Yonnais Subsidiary · France
    • DC Streetcar Subsidiary · Washington, D.C., United States
    • Manchester Metrolink Subsidiary · Manchester, United Kingdom
    • Orlyval Subsidiary · Essonne, France
    • RATP Dev Subsidiary · France
    • RATP DEVELOPPEMENT Subsidiary · Paris, France
      • RATP DEV FRANCE INVEST Subsidiary · Paris, France
      • SCI FONCIERE RD Subsidiary · Paris, France
    • TELCITE NAO Subsidiary · Paris, France
    • Transports annemassiens collectifs Subsidiary · Agglomeration community of Annemasse – Les Voirons, France
    • Transports de l'agglomération de Charleville-Mézières Subsidiary · Ardenne Métropole, France
    • Anatole France Owned · Levallois-Perret, France
    • Gambetta Owned · 20th arrondissement of Paris, France
    • Gare de Cité Universitaire Owned · Paris, France
    • Gare du Nord Owned · 10ᵗʰ arrondissement of Paris, France
    • and 3 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

Subsidiaries and ownership

Parent company

From Wikidata.1

Acquisitions

  1. Succeeded by SYsTRA1

Timeline

  1. 1961Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2