Olivier SEBAG


Olivier SEBAG

Managing Director Dentsu Aegis Network France, in charge of creative activities.

Olivier started his career in 1998 at TBWA as a strategic planner and became partner in 2004 in charge of the global communication strategy of SNCF, Accor Hotels, Eurostar and PlayStation. He became head of innovation at JWT in 2006 and then went on to become Managing Director of the agency in 2007 working on Rolex, Tudor, Energizer, ING Direct. 

In 2009, he joined BETC Paris as Deputy Managing Director and was in charge of the global communication strategy of McDonald’s France and Disneyland Paris. In 2012, he became CEO of Marcel, in charge of transforming the agency’s offer. He worked, among others, on the communication strategy of DS automobile, Instagram, Uber, Total, Intermarché, Mondelez, Banque Populaire, Groupama.

In 2017, Olivier joined Dentsu Aegis Network as CEO of Isobar and Managing Director of the group’s global creative offer (Isobar, McGarryBowen, Gyro, MKTG).


"I am very happy to join a group such as Dentsu Aegis Network, which is constantly evolving and reinventing itself in a rapidly changing market. The media expertise, powered by data and combined with powerful creative ambition, creates a model with great potential for clients. Isobar will play a key role in facilitating the collaboration between the different groups of expertise within the Network, and in delivering ideas for clients that truly transform their business. I am proud to join the Isobar family."