Marie-Claude Dupuis

Systra SA provides civil engineering and construction services. It develops and operates public transportation infrastructure, such as tram systems, bus lines, metro lines, and high-speed railways. The firm provides design, consulting and project management, implementation and maintenance services. The company was founded in 1957 and is headquartered in Paris, France.

RATP Real Estate SA is a subsidiary of the Government of France and is based in Fontenay Sous Bois, France. The French company specializes in real estate related to mobility and sustainable urban development. RATP Real Estate was founded in 1990 and has been led by CEO Guillemette Karpeles since 2012.

RATP Développement SA offers mass public transportation services. The firm offers operating and maintenance expertise in buses, light rails, metro rails, regional railways, and specific transport services. It also handles passenger information, ticketing, space management, transportation on demand, and paratransit. The company was founded in 1963 and is headquartered in Paris, France.

Ratp Smart Systems SASU provides computer programming services. The private company is based in Noisy-le-Grand, France.