Yohan Kösker

citizen of Lugano, Lugano

Commercial register

Avdentis Sagl

Managing director · sole signature · Lugano

since Aug 27, 2026
LUXTANNE AG

Member of the board of directors · sole signature · Zürich

since Jun 8, 2026
RELART SA

Member of the board of directors · sole signature · Lugano

since Sep 27, 2024
ELINT SA

Chair of the board of directors · sole signature · Lugano

Member of the board of directors · sole signature

until Sep 14, 2026
BRICER Sàrl, en liquidation

Managing director · sole signature · Genève

until Jan 17, 2025