| Rol | Empresa | País | Estado | Período |
|---|---|---|---|---|
| Cargo | Trans Tech Publications Ltd. | 🇨🇭Switzerland | Disuelta | 12/9/2019 – presente |
| Cargo | ukrestates.wohlbier.com GmbH | 🇨🇭Switzerland | Disuelta | 17/1/2019 – presente |
| Cargo | SciPress AG in Liquidation | 🇨🇭Switzerland | Disuelta | 17/1/2019 – presente |
| Cargo | wohlbier.com AG | 🇨🇭Switzerland | Disuelta | 26/6/2018 – presente |
10/10/2022
appointed
1/6/2021
appointed
12/8/2020
appointed