Manager.one is a service offered by Bank Wormser Frères. Bank founded in 1936 and approved by ACPR. The service is developed by SaGa Corp, a company specializing in the development of complex information systems and requiring a high level of security and reliability. manager.one is the fully online banking platform that caters to all types of entrepreneurs (liberal professionals, artisans, small and medium-sized businesses and auto-entrepreneurs), as well as the association sector.