| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | endigo Energie AG | 🇨🇭Switzerland | Activa | 28/7/2017 – presente |
| Cargo | HIT Hausinstallationstechnik Elektro AG | 🇨🇭Switzerland | Disuelta | 28/7/2020 – presente |
| Cargo | endigo Technik AG | 🇨🇭Switzerland | Activa | 28/7/2017 – presente |
| Cargo | EW GOMS Energie AG | 🇨🇭Switzerland | Disuelta | 28/7/2017 – presente |
| Cargo | EWcom AG | 🇨🇭Switzerland | Disuelta | 28/7/2017 – presente |
| Cargo | endigo Holding AG | 🇨🇭Switzerland | Activa | 28/7/2017 – presente |
| Cargo | Genossenschaft Feriendorf Fiesch | 🇨🇭Switzerland | Activa | 29/4/2021 – presente |
| Cargo | Ritz Hans Architektur und Planungs AG | 🇨🇭Switzerland | Activa | 21/11/2019 – presente |
| Cargo | Ritz Verwaltung und Vermietung GmbH | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | Perren Baugeschäft AG | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | RIMO Verkauf und Beratung AG | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | Hotel Relief AG | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | GZ Platten- & Natursteinbeläge AG | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | Hans Ritz Holding AG | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | Ritz Lebensmittel GmbH | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | Ritz Immobilien AG | 🇨🇭Switzerland | Activa | 14/11/2019 – presente |
| Cargo | Radio Rottu Oberwallis AG | 🇨🇭Switzerland | Activa | 10/8/2018 – presente |
| Cargo | Aletsch Bahnen AG | 🇨🇭Switzerland | Activa | 29/12/2017 – presente |
| Cargo | Immobilien Gletsch AG in Liquidation | 🇨🇭Switzerland | Liquidación | 6/4/2017 – presente |
| Cargo | RADAG Immobilien AG | 🇨🇭Switzerland | Activa | 21/3/2016 – presente |
| Cargo | Alpenlodge Kühboden GmbH | 🇨🇭Switzerland | Disuelta | 15/2/2017 – presente |
| Cargo | Talstation Bar/Lounge GmbH | 🇨🇭Switzerland | Activa | 28/12/2022 – presente |
| Cargo | Ritz Architektur AG | 🇨🇭Switzerland | Activa | 11/3/2022 – presente |
27/2/2023
appointed
8/6/2022
appointed
21/3/2016
appointed