Hubert du Mesnil

SPB SA provides affinity insurance and brokerage services. Its offers its policies and financial products for clients, that engage in various domains such as telecommunications, retail, electronic commerce, payment instrument, energy, manufacturing, equipment supply, automobile, and banking. The company was founded by Dominique Guian in 1965 and is headquartered in Le Havre, France.

The Institut Pasteur is a private non-profit foundation which contributes to the prevention and treatment of disease, through research, education, and public health activities. The firm was founded in 1887, and is based in Paris.

Lyon Turin Ferroviaire SAS provides engineering and technical studies services. The company is headquartered in Chambéry, France.

Société du Grand Paris is a company based in Saint-Denis, France. The French company is the project owner of the Grand Paris Express, a major infrastructure project in the Paris region. The company is ultimately controlled by the City of Paris. The company was founded in 2010 by Patrick Devedjian. Jean-François Monteils has been the CEO of the company since 2021.

Réseau Ferré de France EPIC operates France's national railway systems. Its responsibilities include infrastructure engineering and construction, equipment repairs and maintenance, network traffic management, project financing and development, and property asset optimization. The company was founded on May 15, 1997 and is headquartered in La Plaine St. Denis, France.

La Poste SA engages in the provision of postal and courier services. It operates through the following business units: GeoPost, La Poste Network, Parcels and Mail Services, La Banque Postale, and Digital. The company was founded in 1879 and is headquartered in Paris, France.