| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | Erni GU und Immobilien AG | 🇨🇭Switzerland | Activa | 16/7/2019 – presente |
| Cargo | Gerber-Stegmann AG | 🇨🇭Switzerland | Disuelta | 8/7/2016 – presente |
| Cargo | FF Group AG | 🇨🇭Switzerland | Activa | 22/6/2016 – presente |
| Cargo | Erni Planung AG | 🇨🇭Switzerland | Disuelta | 17/7/2019 – presente |
| Cargo | Ferroflex (Zürich) AG | 🇨🇭Switzerland | Disuelta | 15/8/2016 – presente |
| Cargo | Ferroflex Stahltechnik AG | 🇨🇭Switzerland | Activa | 5/7/2016 – presente |
| Cargo | Ferroflex Group AG | 🇨🇭Switzerland | Activa | 21/6/2016 – presente |
28/6/2023
appointed