| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | Frey Treuhand | 🇨🇭Switzerland | Disuelta | 3/5/2019 – presente |
| Cargo | Stiftung des Zürcher Heimatschutzes | 🇨🇭Switzerland | Activa | 8/5/2018 – presente |
| Cargo | Leuchten-Atelier Frey GmbH | 🇨🇭Switzerland | Activa | 17/6/2016 – presente |
3/5/2019
appointed
8/5/2018
appointed
17/6/2016
appointed