Transdev (historic) – Wikipedia

Transdev was an international public transport group based in Issy-les-Moulineaux near Paris, France and operating in several countries.Originally created as Société centrale pour l’équipement du territoire in 1955 and developing transportation activities since 1973, Transdev was a subsidiary Caisse des Dépôts et Consignations, a French stated-owned financial institution.

: https://en.wikipedia.org/wiki/Transdev_(historic)