Guillaume Despré holds a master’s degree in political science from Sciences Po Rennes and a degree in media and communication from the Monterrey Institute of Technology and Higher Education in Mexico. He began his career in 2005 at Boursobank, where he served successively as deputy director of customer relations and director of customer marketing, before joining ING Direct France in 2009 as head of diversification activities. He continued his career at Monabanq in 2010, first as director of marketing and communications, then as sales director.
In 2015, he joined the Crédit Mutuel Alliance Fédérale group, where he led digital marketing, CRM, and data initiatives for nearly eight years before taking charge of sales marketing and operations for the Crédit Mutuel and CIC networks.
On July 21, 2025, he was appointed Chief Marketing Officer of La Banque Postale’s retail banking division.