Pierre Vanstoflegatte, 55, is a graduate of Ecole Polytechnique and Ecole des Mines de Paris. He served as Chief Operating Officer and later Chairman of Bouygues Energies et Services from 2019 until its merger with Equans. 

In this role, Pierre Vanstoflegatte significantly enhanced the performance of Bouygues Energies et Services, leveraging his extensive experience in the agency business acquired both in France and internationally within Spie and Schindler. 

In 2022, he led the detachment project and merger of Bouygues Energies et Services with Equans, a company acquired by Bouygues in October 2022, showcasing exemplary performance. On September 17, 2023, he assumed the role of Chief Executive Officer at Colas.

His mission is to continue the company's development and enhance cross-functionality with other Bouygues Group entities, particularly Bouygues Construction and Equans.