| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | GZ Platten- & Natursteinbeläge AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Perren Baugeschäft AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Hans Ritz Holding AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Poort A Poort Dorfhotel AG | 🇨🇭Svizzera | Active | 13/02/2023 – present |
| Officer | Ritz Hans Architektur und Planungs AG | 🇨🇭Svizzera | Active | 21/11/2019 – present |
| Officer | Ritz Immobilien AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Ritz Lebensmittel GmbH | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | RIMO Verkauf und Beratung AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Ritz Verwaltung und Vermietung GmbH | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Hotel Relief AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
12/12/2023
appointed
13/02/2023
appointed
14/11/2019
appointed