| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | endigo Energie AG | 🇨🇭Svizzera | Active | 28/07/2017 – present |
| Officer | HIT Hausinstallationstechnik Elektro AG | 🇨🇭Svizzera | Dissolved | 28/07/2020 – present |
| Officer | endigo Technik AG | 🇨🇭Svizzera | Active | 28/07/2017 – present |
| Officer | EW GOMS Energie AG | 🇨🇭Svizzera | Dissolved | 28/07/2017 – present |
| Officer | EWcom AG | 🇨🇭Svizzera | Dissolved | 28/07/2017 – present |
| Officer | endigo Holding AG | 🇨🇭Svizzera | Active | 28/07/2017 – present |
| Officer | Genossenschaft Feriendorf Fiesch | 🇨🇭Svizzera | Active | 29/04/2021 – present |
| Officer | Ritz Hans Architektur und Planungs AG | 🇨🇭Svizzera | Active | 21/11/2019 – present |
| Officer | Ritz Verwaltung und Vermietung GmbH | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Perren Baugeschäft AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | RIMO Verkauf und Beratung AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Hotel Relief AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | GZ Platten- & Natursteinbeläge AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Hans Ritz Holding AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Ritz Lebensmittel GmbH | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Ritz Immobilien AG | 🇨🇭Svizzera | Active | 14/11/2019 – present |
| Officer | Radio Rottu Oberwallis AG | 🇨🇭Svizzera | Active | 10/08/2018 – present |
| Officer | Aletsch Bahnen AG | 🇨🇭Svizzera | Active | 29/12/2017 – present |
| Officer | Immobilien Gletsch AG in Liquidation | 🇨🇭Svizzera | Liquidation | 06/04/2017 – present |
| Officer | RADAG Immobilien AG | 🇨🇭Svizzera | Active | 21/03/2016 – present |
| Officer | Alpenlodge Kühboden GmbH | 🇨🇭Svizzera | Dissolved | 15/02/2017 – present |
| Officer | Talstation Bar/Lounge GmbH | 🇨🇭Svizzera | Active | 28/12/2022 – present |
| Officer | Ritz Architektur AG | 🇨🇭Svizzera | Active | 11/03/2022 – present |
27/02/2023
appointed
08/06/2022
appointed
21/03/2016
appointed