| UPM-Kymmene Seven Seas Oy CVR 0134578-0 | OtherPerson with significant control | Siden 2022 | — | Aktiv |
| Myllykoski Oyj CVR 0163188-3 | OtherConfidential Clerk | Siden 2025 | — | Aktiv |
| Repola Investment Oy CVR 0839268-6 | OtherPerson with significant control | Siden 2022 | — | Aktiv |
| UPM-Kymmene Oyj CVR 1041090-0 | OtherPerson with significant control | Siden 2024 | — | Aktiv |
| UPM Raflatac Oy CVR 1064733-4 | OtherPerson with significant control | Siden 2025 | — | Aktiv |
| UPM Sähkönsiirto Oy CVR 1643266-8 | OtherPerson with significant control | Siden 2022 | — | Aktiv |
| UPM Plywood Oy CVR 1839206-5 | OtherPerson with significant control | Siden 2025 | — | Aktiv |
| UPM Pulp Sales Oy CVR 2096078-9 | OtherPerson with significant control | Siden 2022 | — | Aktiv |
| UPM Wind Holdings Oy CVR 2395705-9 | OtherPerson with significant control | Siden 2022 | — | Aktiv |
| UPM Sales Oy CVR 2430533-5 | OtherPerson with significant control | Siden 2023 | — | Aktiv |
| UPM Energy Oy CVR 2760639-5 | OtherPerson with significant control | Siden 2022 | — | Aktiv |
| UPM Specialty Papers Oy CVR 2760640-8 | OtherPerson with significant control | Siden 2025 | — | Aktiv |
| UPM Communication Papers Oy CVR 2760641-6 | OtherPerson with significant control | Siden 2025 | — | Aktiv |
| UPM Pulp Oy CVR 2863107-4 | OtherPerson with significant control | Siden 2022 | — | Aktiv |
| UPM Wind West Oy CVR 3382216-6 | OtherPerson with significant control | Siden 2025 | — | Aktiv |
| UPM Wind East Oy CVR 3382225-4 | OtherPerson with significant control | Siden 2025 | — | Aktiv |
| UPM Solar Oy CVR 3382228-9 | OtherPerson with significant control | Siden 2025 | — | Aktiv |
