| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | M. Hartmann Treuhand AG | 🇨🇭Svizzera | Active | 04/01/2017 – present |
| Officer | hartmannpartner audit ag | 🇨🇭Svizzera | Active | 25/03/2024 – present |
| Officer | wega & sunergy gmbh | 🇨🇭Svizzera | Active | 26/07/2022 – present |
| Officer | M. Hartmann Holding AG | 🇨🇭Svizzera | Active | 07/06/2021 – present |
| Officer | K.E.M. Montage Schweiz GmbH in Liquidation | 🇨🇭Svizzera | Dissolved | 13/12/2021 – present |
| Officer | J. Weder-Meier AG | 🇨🇭Svizzera | Active | 26/05/2020 – present |
| Officer | Reswic AG | 🇨🇭Svizzera | Active | 17/11/2016 – present |
| Officer | G5 Signature GmbH | 🇨🇭Svizzera | Active | 15/05/2025 – present |
| Officer | GB Handels GmbH | 🇨🇭Svizzera | Active | 22/07/2022 – present |
02/04/2024
appointed
25/03/2024
appointed
17/11/2016
appointed