| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | Konstruktionsbüro Sieber GmbH | 🇨🇭Switzerland | Active | 15/08/2022 – present |
| Officer | Sieber Logistics AG | 🇨🇭Switzerland | Active | 27/01/2021 – present |
| Officer | Sieber & Liechti GmbH | 🇨🇭Switzerland | Active | 15/01/2018 – present |
| Officer | creato - Genossenschaft für kreative Umweltplanung | 🇨🇭Switzerland | Active | 12/01/2018 – present |
| Officer | Sieber Solutions AG | 🇨🇭Switzerland | Dissolved | 27/11/2024 – present |
| Officer | Sieber Solutions AG | 🇨🇭Switzerland | Dissolved | 19/12/2024 – present |
| Officer | Sieber Logistics AG | 🇨🇭Switzerland | Active | 27/11/2024 – present |
15/08/2022
appointed
27/01/2021
appointed
12/01/2018
appointed