| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | Gebrüder Bertschi Bau | 🇨🇭Svizzera | Active | 27/10/2022 – present |
| Officer | E. & W. Bertschi AG | 🇨🇭Svizzera | Active | 26/11/2020 – present |
| Officer | R. Steiner AG | 🇨🇭Svizzera | Active | 21/06/2016 – present |
27/10/2022
appointed
26/11/2020
appointed
21/06/2016
appointed