Rudolf Christian Bieri
citizen of Winterthur, Winterthur
Commercial register
Member of the board of directors · sole signature · Winterthur
since Dec 11, 2025Chair of the board of directors · sole signature · Winterthur
since Dec 3, 2021Member of the board of directors · sole signature · Winterthur
until Jan 31, 2022Managing director · sole signature
until Jun 26, 2014Member of the board of directors · sole signature · Herisau
until Jan 31, 2022