Marie Barbier-Mueller studied economics and management at Bocconi University in Milan. She complemented her Bachelor’s degree with a Master’s in Sustainable Development at King’s College in London. Various internships in real estate, culture, and the environment took her to New York, Dallas, Buenos Aires, and Belize. She then joined the Solar Impulse initiative alongside Bertrand Piccard and André Borschberg, driven by the pioneering mission to promote clean technologies. In 2018, after two years in commercial real estate in Zurich, Marie joined the SPG group alongside her father, Thierry Barbier-Mueller. In 2023, she and her sister Valentine took over the leadership of the group, representing the third generation of the family to head the company.