Custodian bank is a bank with which clients, or wealth managers acting on behalf of clients, deposit their assets or securities. The custodian Banks do not carry out commercial operations (mortgage loans, loans for working capital, etc. For this reason, in the 2008 crisis, none of the banks with which Suiza Fidelis works had to be saved by the Swiss Government). Custodian banks only take care of the assets deposited in them and charge a fee for this work.