| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | Ledermann - lemaGroup.CH | 🇨🇭Switzerland | Activa | 5/2/2016 – presente |
| Cargo | Witschi AG | 🇨🇭Switzerland | Activa | 1/9/2020 – presente |
| Cargo | Witschi Immobilien AG | 🇨🇭Switzerland | Activa | 20/6/2019 – presente |
| Cargo | EcoSoil AG | 🇨🇭Switzerland | Activa | 31/7/2023 – presente |
| Cargo | LOSTnFOUND AG | 🇨🇭Switzerland | Activa | 17/1/2022 – presente |
| Cargo | Witschi Service GmbH | 🇨🇭Switzerland | Activa | 3/10/2023 – presente |
9/11/2023
appointed
1/9/2020
appointed
20/6/2019
appointed