Osvaldo Borsani was born in 1911 in Varedo, Italy. He studied Beaux-Arts at Accademia di Brera in Milan and architecture at Politecnico di Milano, graduating in 1936. In 1953, Osvaldo and his twin brother, Fulgenzio opened TECNO, a firm that became known for its technology and research-based approach to furniture design. In 1970, together with his daughter Valeria and Marco Fantoni, Borsani introduced the Centro Progetti Tecno, a collaborative design laboratory for new product development. Borsani passed away on April 16, 1985 in Milan.