Background and career
Marie Besnier Beauvalot (born July 30, 1980) is a French billionaire heiress. She is a major shareholder of Lactalis.
Marie Madeleine Yvonne Besnier was born in 1980 to Michel Besnier and Christiane Hallais. Her father was CEO of Lactalis, from 1955 to 2000. Her paternal grandfather, Lactalis, founded the Besnier group (later Lactalis) in 1933. She has two brothers: Emmanuel Besnier, Chairman and CEO of Lactalis, and Jean-Michel Besnier. She holds as many shares in the group as her two brothers. Marie Besnier inherited Lactalis with her brothers in 2000. In 2023, she was one of the 3 richest women in France, with an estimated fortune of 7.2 billion euros. She has no operational function within the company, but sits on the Supervisory board. She works as a Designer. She has been married to Stéphane Beauvalot since 2008 and lives in Laval, Mayenne. She is also involved in a number of philanthropic initiatives, notably via the Milk for Good endowment fund, which has supported the La Source association offering art workshops for the Aide Sociale à l'Enfance, and helped set up France's first integrated pediatric oncology center with the Curie Institute (Paris).
Marie Besnier Beauvalot was born in 1980. Her father, Michel Besnier, was the CEO of Lactalis from 1955 to 2000. Her paternal grandfather, André Besnier, founded the Besnier Group (later known as Lactalis) in 1933. She has two brothers: Emmanuel Besnier, who is the CEO of Lactalis, and Jean-Michel Besnier.
Besnier inherited 100% of Lactalis with her brothers in 2000. As of 2018, she is worth an estimated US$5.6 billion.
Besnier is married. She resides in Laval, Mayenne, France.
Sources
Net-worth figure: Celebrity Net Worth (October 2026), in USD. Biography and career facts: the person's Wikipedia article and linked reporting. Snapshot date for all StarWorth figures: 28 October 2026.
