| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | Pferdereha Grüt AG | 🇨🇭Switzerland | Activa | 15/8/2018 – presente |
| Cargo | Keller AG Ziegeleien | 🇨🇭Switzerland | Activa | 1/2/2017 – presente |
| Cargo | Tonwerke Keller AG | 🇨🇭Switzerland | Activa | 13/2/2017 – presente |
| Cargo | Keller Systeme AG | 🇨🇭Switzerland | Activa | 1/2/2017 – presente |
| Cargo | Keller Properties AG | 🇨🇭Switzerland | Activa | 1/2/2017 – presente |
| Cargo | Keller Holding AG | 🇨🇭Switzerland | Activa | 27/1/2017 – presente |
| Cargo | Keller Prefadom AG | 🇨🇭Switzerland | Activa | 30/4/2019 – presente |
| Cargo | Imbrex Immobilien AG | 🇨🇭Switzerland | Activa | 23/2/2018 – presente |
| Cargo | Stahlton Bauteile AG | 🇨🇭Switzerland | Activa | 30/4/2019 – presente |
| Cargo | Spann - Stahl AG | 🇨🇭Switzerland | Disuelta | 21/5/2019 – presente |
| Cargo | Stahlton AG | 🇨🇭Switzerland | Activa | 30/4/2019 – presente |
15/8/2018
appointed
16/7/2018
appointed
27/1/2017
appointed