Jean Daniel Sieber

citizen of Widnau, Zuzwil SG

Commercial register

joint procuration by two · Dietikon

since Aug 10, 2026

Chair of the board of directors · joint signature by two · Zuzwil (SG)

until Oct 6, 2025

Chair of the board of directors · Member of the executive board · joint signature by two · Zürich

until Oct 1, 2025

Chair of the board of directors · joint signature by two · Zürich

until Sep 30, 2025