Stephan Keller
citizen of Rapperswil-Jona, Jona (Rapperswil-Jona)
Commercial register
Managing director · sole signature · Rapperswil-Jona
since Mar 18, 2026Chair of the board of directors · sole signature · Zürich
since Jan 28, 2021Managing director · sole signature · Rapperswil-Jona
Chair of the executive board · sole signature
until Aug 19, 2026Member of the board of directors · sole signature · Zürich
until Sep 5, 2023