| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | Sieber Logistics AG | 🇨🇭Svizzera | Active | 15/12/2025 – present |
| Officer | SFL AG | 🇨🇭Svizzera | Active | 15/12/2025 – present |
| Officer | Sieber Holding AG | 🇨🇭Svizzera | Active | 15/12/2025 – present |
| Officer | Sieber Handling AG | 🇨🇭Svizzera | Active | 15/12/2025 – present |
| Officer | Timber Structures 3.0 AG | 🇨🇭Svizzera | Active | 28/10/2021 – present |
15/12/2025
appointed
28/10/2021
appointed