Graduate of the Paris Institute of Political Studies (1971) with degrees in literature, government and civil law, a chartered accountant and auditor, Patrick began his career with Mazars in 1974 at the age of 24. 
He became a partner in 1978, and chairman of Mazars in 1983.  He is a member of a variety of committees among the organisations of his profession (French Institute of Chartered Accountants, Government Auditors’ Society, National Accounting Council), and also participated in the Le Portz Committee on network ethics. 
Patrick de Cambourg is chairman of the international section of the National Accounting Council and is also a Knight of the National Order of Merit and of the Legion of Honour.