H ans-Ueli Rihs is a Swiss billionaire whose fortune is primarily derived from his family's ownership of Sonova Holding, one of the world's largest manufacturers of hearing aids. The company was built into a global leader by his late brother, Andy Rihs, who was a high-profile and charismatic entrepreneur.

Sonova is a major player in the global audiological care market, with well-known brands like Phonak and Unitron. After his brother's death, Hans-Ueli inherited a significant portion of the family's massive stake in the publicly traded company. He is not involved in the day-to-day management of the business. His late brother was also famous for his passions outside of business, including his ownership of the Swiss bicycle manufacturer BMC and a professional cycling team, as well as the Swiss soccer club, BSC Young Boys. Hans-Ueli's wealth is a legacy of his brother's remarkable entrepreneurial success.