• Offering customer-friendly, reliable, comfortable and modern transportation across all twelve municipalities in the Saint-Quentin-en-Yvelines conurbation.


million passengers per year


bus routes and11 schoolbus routes


municipalities serviced


In order to ensure the best possible travel conditions for all twelve municipalities in the Saint-Quentin-en-Yvelines conurbation outside of Paris and to promote local economic growth, SQYBUS – an RATP Dev subsidiary founded in 1975 – offers modern and comfortable transportation. Today, it operates the second-largest transportation system in the greater Paris region after the RATP.


Saint Quentin en Yvelines France Bus Mobility

"SQYBUS has supported the development and clustering of large companies in the region."

Laurent Schlaeintzauer
Former Deputy General Manager of the Grand Saint-Quentin business cluster

Learn More


Didier Blanchet



Related references

Bus & Coach
Bus & Coach

Rhône Alpes region - France

Sustainable, accessible mobility: the Alpbus pledge

Bus & Coach
Bus & Coach

Satigny - Switzerland

Ensuring regular connections to and from the canton of Geneva and beyond!

Bus & Coach
Bus & Coach

Vannes - France

Restructuring for better multimodal service