Olivier Roussat is a graduate of Institut National des Sciences Appliquées (INSA) Lyon. He began his career in 1988 at IBM, where he held various positions in data network services, service delivery and pre-sales. He joined Bouygues Telecom in 1995 to set up the network and business process monitoring and control center for the Network Operations division. He then was appointed to lead this division, and subsequently headed up telecoms and IT service delivery activities. Olivier Roussat was appointed Chief Network Officer in May 2003 and became a member of Bouygues Telecom’s Executive Management Committee.

In January 2007, he took charge of the Performance and Technology business unit, which brings together all of Bouygues Telecom’s cross-business technical and IT divisions, including Network Operations, Information Systems, Process Engineering, Purchasing, Corporate Services and Real Estate. He was also given responsibility for Bouygues Telecom’s headquarters and the Technopôle center. Olivier Roussat became Deputy Chief Executive Officer of Bouygues Telecom in February 2007 and was appointed its Chief Executive Officer in November 2007. He served as Chairman and Chief Executive Officer of Bouygues Telecom from May 2013 to November 2018, then as Chairman from November 9, 2018.

From August 30, 2016 to February 17, 2021, he served as Deputy Chief Executive Officer of Bouygues SA. Since February 17, 2021, he has served as Chief Executive Officer of Bouygues.

He was appointed as a Director of Colas in February 19, 2019. He served as Chairman of the Board of Directors of Colas from October 1, 2019 to February 16, 2021.

Olivier Roussat is a Knight of the Légion d’Honneur.