Walter Widler

citizen of Bischofszell, Wollerau

Commercial register

RINK ROOKIES Foundation

Chair of the board of directors · sole signature · Wollerau

since Sep 29, 2025
Timeout Gastro & Event GmbH

Partner · sole signature · Wollerau

since Feb 28, 2024
DentoNet AG

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

since Mar 2, 2023
Ecodental SA

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

since Jul 13, 2021
WaWiDent Holding AG

Member of the board of directors · sole signature · Baar

since Dec 30, 2019
WaWiMed Holding AG

Member of the board of directors · sole signature · Baar

since Dec 30, 2019
TI-DENTAL SERVICE SA

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

since Jul 19, 2017
Kaladent Holding AG

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

since Apr 29, 2014
Medidenta AG

Chair of the board of directors · joint signature by two · St. Gallen

since Apr 24, 2014
Technomedica AG

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

since Mar 6, 2014
Medicalbudget AG

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

since Nov 5, 2012
Polymed Holding AG

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

since Jun 22, 2007
UNISERV AG

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

since May 17, 2002
HejSano AG

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

since May 13, 2002
Polymed Manera Medical S.A.

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

since Jul 10, 1998
Dental-Pro SA

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

Chair of the board of directors · joint signature by two

until Mar 21, 2024
FARFAR Betriebs AG

Chair of the board of directors · sole signature · Wollerau

Member of the board of directors · sole signature

until May 17, 2024
Kaladent AG

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

KEB FARFAR AG

Chair of the board of directors · sole signature · Wollerau

Member of the board of directors · sole signature

until Sep 12, 2025
Omniprax AG

Chair of the board of directors · joint signature by two · Muri (AG)

Polymed Medical Center AG

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

PolyRose AG

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

until Jul 11, 2016
PolyGene AG in Liquidation

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

until Jul 30, 2007
Opo-Holding-Stiftung

Delegate of the foundation board · joint signature by two · Zürich

until Jul 25, 2007

Member of the foundation board · joint signature by two

until Feb 14, 2000
Opopharma AG

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

until Jul 18, 2007