Jean-Michel Besnier was born circa 1968. His Father, Michel Besnier, served as the CEO of Lactalis from 1955 to 2000. His paternal grandfather, André Besnier, founded the Besnier Group (later known as Lactalis) in 1933. He has a brother, Emmanuel Besnier, who serves as the CEO of Lactalis, and a sister, Marie.
Besnier inherited 100% of Lactalis with his brother and sister. As of 2015, he is worth an estimated US$2.5 billion.