Liane Nadeau is an accomplished media executive with over a decade of experience leading high-performing teams and delivering innovative, data-driven media strategies for some of the world’s leading brands. As the Executive Vice President of Investment at Publicis, Liane oversees audience-based buying for top clients such as Hershey, Panera Bread and Sephora, guiding a team of over 200 media investment experts. Her data-first, consumer-centric approach to media activation ensures that client investment drives measurable, long-term success.
Liane is known for her innovative thinking and ability to combine technology with creativity, enabling brands to connect with their audiences in meaningful ways. She is passionate about pushing the boundaries of what’s possible in media buying, using analytics to optimize results and drive engagement.

A frequent industry speaker, Liane has shared her insights at AdExchanger’s Programmatic I/O conferences from 2018 to 2020 and regularly serves as an expert source for major media outlets covering programmatic advertising. She also sits on TheTradeDesk’s Advisory Council and has been recognized as a 2019 Top Woman in Media by Cynopsis Media and an Industry Trailblazer by Folio Magazine.