Société du Grand Paris

Société du Grand Paris is a French organization responsible for developing and managing the Grand Paris Express project—a major infrastructure initiative to expand Paris’s public transportation network. It involves constructing new metro lines, stations, and infrastructure to improve connectivity across the Île-de-France region. The goal is to make travel more efficient, reduce congestion, and support economic growth. The organization oversees planning, financing, construction, and operational aspects, working with public and private partners to create a modern, sustainable transit system that benefits residents, workers, and visitors alike.