Cédric Petitdidier and Vincent Prioux created PPX in 2004. It is based in Paris and Lyon and has already completed around forty building. Over the years, PPX has developed its own expertise in the field of residential and mix-used projects, always betting on a "friendly density" in order to bring back together individual and collective interests, including for high-rise buildings. PPX has recently won large-scale urban operations, especially for the city of Nice and for the Paris Olympics in 2024, for which it will provide architectural coordination for part of the Athletes’ Village.