Stéphanie is an engineer (1998) and graduated from the Institut d'Etudes Politiques de Paris in International Relations (2001). She studied political science at Brown University (USA) and holds a certificate in Sustainability from Oxford University's Said Business School. She is part of the 59th cohort for the Sciences Po-IFA Board Director program.

After a first role in marketing with LVMH Group in 2001, Stéphanie Cau pursued her career in Communications, Investor Relations and Chief of Staff corporate management with international business services, technical and technology companies, including Sodexo and Idemia.

She joined Bureau Veritas in 2014 as Chief of Staff to the CEO to support the Group's transformation, with a focus on its organization and strategic direction. In 2017, in addition to her role as Chief of Staff, she was appointed Brand and Communications Vice-President. In 2021, she also assumed responsibility for CSR management and became Senior Vice-President - CSR, Brand and Communications.