Bertrand started his career with HSBC Securities as a financial analyst before joining 1989 BNP Securities in 1989 as equity Salesperson. He joined Banque Lazard (Primary and secondary sales department) where he was appointed Manager in 2001. Two years later, he became Manager of institutional relations responsible for IPOs at EFI. In 2007, he was involved in the opening of the Paris office of Sal. Oppenheim as Senior, equity sales, and then became equity Salesperson at H et Associés. In 2014, he joined Invest Securities.