| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | Harder Finanz GmbH in Liquidation | 🇨🇭Switzerland | Disuelta | 26/1/2017 – presente |
| Cargo | Harder Invest GmbH | 🇨🇭Switzerland | Activa | 9/1/2020 – presente |
| Cargo | Industrielle Betriebe Interlaken (IBI) AG | 🇨🇭Switzerland | Activa | 26/5/2020 – presente |
| Cargo | Lehmann + Bacher Treuhand AG | 🇨🇭Switzerland | Activa | 25/2/2019 – presente |
| Cargo | Lüthi Treuhand AG | 🇨🇭Switzerland | Activa | 25/6/2018 – presente |
10/6/2021
appointed
24/8/2020
appointed
25/2/2019
appointed