PeoplePress Release

Havas appoints Stéphanie Bertrand-Tassilly as Global Chief CSR Officer and Charlotte Rambaud as Global Chief Communications Officer

PARIS, FRANCE — To accelerate Havas’ Corporate Social Responsibility (CSR) journey, Stéphanie Bertrand-Tassilly, former Global Chief Communications and CSR Officer, will now focus solely on managing a new department dedicated to CSR.

CSR is an integral part of Havas’s ethos, as the group’s mission is to make a meaningful difference to brands, businesses, and people, and to bring positive change in society as a whole. Havas has already made great progress and launched the “Havas Impact+” program in 2020, but there is an opportunity to grow the approach and better coordinate the programs and leaders around the world on these issues.

Stéphanie Bertrand-Tassilly

Stéphanie brings a wealth of expertise from her past experiences at Prisma Media that she will use in her new role as Global Chief CSR Officer and member of the Executive Committee to strengthen and deploy the group’s sustainability strategy. She will structure and coordinate the CSR resources in the markets where the group operates to ensure that there is exceptional collaboration across the network and that global resources are leveraged in how clients are supported.


As part of this reorganization, Charlotte Rambaud, who has been Chief of Staff to Havas CEO, Yannick Bolloré, for the past three years, was appointed to the role of Global Chief Communications Officer, and a member of the Executive Committee. Charlotte will be responsible for overseeing all the external and internal communications for Havas with a particular focus on further developing the brand in the marketplace. She will work closely with the Creative, Media, and Health divisions to coordinate all communications efforts across the world.

“I would like to warmly congratulate Stéphanie and Charlotte on their new roles, in which they will continue to work with our teams across the world to expand our CSR and Communications strategies. This is a great example of the internal mobility we promote at Havas and Vivendi, by offering our talents the opportunity to evolve and move between roles and teams,” said Yannick Bolloré, Chairman and CEO of Havas.

Stéphanie holds a master’s degree in business law from the University of Paris X Nanterre. After more than 12 years of experience in candidate assessment, employer branding, and cross-functional human resources projects within specialized firms and Ernst & Young, she joined Prisma Media in 2011 as Recruitment and Mobility Manager before being appointed Director of External Corporate Communications in 2015, to which CSR responsibilities were added. She joined Havas in August 2022.

Charlotte Rambaud

Charlotte graduated from Sciences Po Paris. After several professional experiences in Paris and London, she joined Havas in 2016 as Director at Havas Paris, where she developed strong advisory skills through the development and implementation of corporate communications strategies for major international clients. Most recently, since 2020, she has been Chief of Staff to Yannick, a role in which she has been at the heart of the group’s transformation.

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