| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | Witzig Alteco Digital Services AG | 🇨🇭Switzerland | Active | 08/01/2021 – present |
| Officer | Brossi AG | 🇨🇭Switzerland | Active | 17/01/2019 – present |
| Officer | Witzig The Office Company AG | 🇨🇭Switzerland | Dissolved | 20/12/2017 – present |
| Officer | B+P AG | 🇨🇭Switzerland | Active | 11/10/2016 – present |
| Officer | SDL AG | 🇨🇭Switzerland | Active | 14/07/2016 – present |
| Officer | Zinctec AG | 🇨🇭Switzerland | Dissolved | 14/07/2016 – present |
| Officer | WSB Immobilien AG | 🇨🇭Switzerland | Active | 04/05/2021 – present |
| Officer | Witzig The Office Company AG in Liquidation | 🇨🇭Switzerland | Liquidation | 05/05/2021 – present |
| Officer | Bio Partner Gruppe AG | 🇨🇭Switzerland | Dissolved | 19/05/2016 – present |
| Officer | Bio Development AG | 🇨🇭Switzerland | Active | 21/06/2016 – present |
| Officer | AVA Verlagsauslieferung AG | 🇨🇭Switzerland | Active | 14/06/2024 – present |
| Officer | Biomilk AG | 🇨🇭Switzerland | Active | 06/09/2016 – present |
08/01/2021
appointed
17/01/2019
appointed
14/07/2016
appointed