Sergio Brioschi was born in Milan in 1960. In 1977 he obtained a high-school Diploma in Arts (Diploma di maturità artistica) at the II° Liceo Artistico di Brera of Milan, and in 1979 he took a Degree in Industrial Design at the Scuola Politecnica di Design. Between 1981 and 1984 he worked at the Studio of architect Mario Bellini. Between 1985 and 1994 he worked at the Studio of architect Antonio Citterio, supervising product design projects and the setting up of exhibit stands and spaces. In 1994 he established his own architectural firm in Milan, where he has since worked full time.
Since then he has worked jointly with architect Antonio Citterio in the industry of bathroom suites, furniture and accessories, designing and creating products for Pozzi-Ginori, Keramag, Albatros, and Inda.