| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | Scherer Immobilien AG | 🇨🇭Switzerland | Activa | 2/12/2021 – presente |
| Cargo | Scherer AG Pfäffikon | 🇨🇭Switzerland | Activa | 2/12/2021 – presente |
| Cargo | Astra Liegenschaft GmbH in Liquidation | 🇨🇭Switzerland | Disuelta | 17/9/2020 – presente |
| Cargo | FREI - Risk Management Consulting GmbH in Liquidation | 🇨🇭Switzerland | Disuelta | 23/1/2020 – presente |
| Cargo | Bioarchitektur & Design GmbH in Liquidation | 🇨🇭Switzerland | Disuelta | 20/12/2018 – presente |
| Cargo | BRT - Bruno Ruppli Treuhand | 🇨🇭Switzerland | Activa | 17/11/2017 – presente |
| Cargo | BRT Treuhand + Immobilien GmbH | 🇨🇭Switzerland | Activa | 19/10/2017 – presente |
| Cargo | BBS Treuhand + Revision AG | 🇨🇭Switzerland | Activa | 31/1/2018 – presente |
| Cargo | Hof-Garage Bichelsee AG | 🇨🇭Switzerland | Activa | 5/12/2016 – presente |
| Cargo | Heuberge AG | 🇨🇭Switzerland | Activa | 25/2/2019 – presente |
2/12/2021
appointed
17/9/2020
appointed
19/10/2017
appointed