Lémanis SA was founded in 2017 in Geneva by the parent firms CFF and SNCF. Lémanis, as the privileged interlocutor of the Léman Express organizing authority, is in charge of coordinating and accompanying the contractualization, offer planning, marketing, and communication of the Léman Express product. Lémanis guarantees the quality of its operation, production, and customer information as the operator of the Leman Express from the moment it enters service. Lémanis is in charge of customer service coordination.