| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | Mittetulundusühing Köstre Huub | 🇪🇪Estonia | Active | 17/03/2026 – present |
| Person with significant control | Ensino OÜ | 🇪🇪Estonia | Active | 20/03/2025 – present |
| Person with significant control | MTÜ Köstre Selts | 🇪🇪Estonia | Liquidation | 01/11/2024 – present |
| Person with significant control | Köstre Talu OÜ | 🇪🇪Estonia | Active | 26/08/2024 – present |
| Person with significant control | Köstre Aed OÜ | 🇪🇪Estonia | Active | 29/03/2022 – present |
17/03/2026
appointed
20/03/2025
appointed
29/03/2022
appointed