| Asunto Oy Joukola CVR 0242621-6 | BoardBoard of Directors | 2021 – 2023 | — | Active |
| Oiva Isännöinti Espoo Oy CVR 0873951-2 | BoardBoard of Directors | 2021 – 2022 | — | Dissolved |
| Galena Pharma Oy CVR 1057172-0 | BoardBoard of Directors | 2021 – 2022 | — | Active |
| Oiva Isännöinti Pasila Oy CVR 2310538-2 | BoardBoard of Directors | 2021 – 2022 | — | Dissolved |
| Oiva Isännöinti Vantaa Oy CVR 2321737-6 | BoardBoard of Directors | 2021 – 2022 | — | Dissolved |
| Oiva Isännöinti Tampere Oy CVR 2407081-2 | BoardBoard of Directors | 2021 – 2022 | — | Dissolved |
| Oiva Isännöinti Oy CVR 2430066-5 | BoardBoard of Directors | 2021 – 2022 | — | Active |
| Stella Care Oy CVR 2611684-5 | BoardBoard of Directors | 2019 – 2022 | — | Active |
| Avarn Group Oy CVR 2792931-1 | BoardBoard of Directors | 2019 – 2023 | — | Dissolved |
| Avarn Holding Oy CVR 2792934-6 | BoardBoard of Directors | 2019 – 2023 | — | Active |
| Oiva Isännöinti Helsinki Oy CVR 2833136-2 | BoardBoard of Directors | 2021 – 2022 | — | Dissolved |
| Enivo Ohjelmistot Oy CVR 2855772-4 | BoardBoard of Directors | 2021 – 2022 | — | Dissolved |
| TREA Team for Resilient Architecture Oy CVR 2873255-3 | OtherDeputy Member | 2020 – 2022 | — | Active |
| Roima Intelligence Holding Oy CVR 2910195-6 | BoardBoard of Directors | 2018 – 2020 | — | Active |
| Roima Intelligence Group Oy CVR 2910196-4 | BoardBoard of Directors | 2018 – 2020 | — | Active |
| Oiva Isännöinti Jyväskylä Oy CVR 3102214-9 | BoardBoard of Directors | 2021 – 2022 | — | Dissolved |
| GPX Holding Oy CVR 3175562-5 | BoardBoard of Directors | 2024 – 2025 | — | Active |
| GPX Group Oy CVR 3175567-6 | BoardBoard of Directors | 2024 – 2025 | — | Active |
| GPX MidCo Oy CVR 3175568-4 | BoardBoard of Directors | 2024 – 2025 | — | Active |
| Oiva Holding Oy CVR 3217410-1 | BoardBoard of Directors | 2021 – 2025 | — | Active |
| Oiva Midco Oy CVR 3217412-8 | BoardBoard of Directors | 2021 – 2025 | — | Active |
| Oiva Isännöinti Group Oy CVR 3217413-6 | BoardBoard of Directors | 2021 – 2025 | — | Active |
