| Asunto Oy Haukirysä CVR 0101620-7 | BoardBoard of Directors | 2023 – 2023 | — | Active |
| Aro Systems Oy CVR 0114568-2 | BoardBoard of Directors | 2019 – 2022 | — | Active |
| Inlook Group Oy CVR 0199102-9 | BoardBoard of Directors | 2018 – 2020 | — | Active |
| Mitta Oy CVR 0779388-3 | ManagementChief Executive Officer | 2020 – 2024 | — | Active |
| Etelä-Suomen Mittauspalvelu Oy CVR 1075072-9 | ManagementChief Executive Officer | 2019 – 2023 | — | Dissolved |
| Foreship Oy CVR 1773739-1 | BoardChairperson | 2020 – 2024 | — | Active |
| Maapörssi Oy CVR 2038229-6 | BoardBoard of Directors | 2019 – 2019 | — | Dissolved |
| Geoelectric Oy CVR 2221139-4 | BoardChairperson | 2023 – 2024 | — | Active |
| Sitowise Oy CVR 2335445-0 | ManagementDeputy Chief Executive Officer | 2018 – 2019 | — | Active |
| Heon Holding Oy CVR 2496935-0 | OtherPerson with significant control | 2012 – 2025 | — | Active |
| Wise Group Consulting Oy CVR 2540943-5 | BoardChairperson | 2016 – 2019 | — | Dissolved |
| Mitta Group Oy CVR 2578572-1 | ManagementChief Executive Officer | 2020 – 2024 | — | Active |
| Helimäki Akustikot Oy CVR 2685119-6 | BoardChairperson | 2018 – 2019 | — | Dissolved |
| Mitta Henkilöstö Oy CVR 2749622-9 | BoardBoard of Directors | 2023 – 2024 | — | Active |
| Sitowise Group Oyj CVR 2767842-8 | ManagementDeputy Chief Executive Officer | 2017 – 2019 | — | Active |
| Sitowise Holding II Oy CVR 2767844-4 | ManagementDeputy Chief Executive Officer | 2017 – 2019 | — | Dissolved |
| Measurent Oy CVR 2803350-9 | ManagementChief Executive Officer | 2020 – 2024 | — | Active |
| PHM Finland Oy CVR 2938820-5 | BoardBoard of Directors | 2019 – 2020 | — | Dissolved |
| PHM Holding Oy CVR 2938825-6 | BoardBoard of Directors | 2019 – 2020 | — | Active |
| Koestus T&T Oy CVR 2948128-2 | ManagementChief Executive Officer | 2020 – 2023 | — | Dissolved |
| Foreship Group Oy CVR 3085496-3 | BoardChairperson | 2020 – 2024 | — | Active |
| Foreship Holding Oy CVR 3085497-1 | BoardChairperson | 2020 – 2024 | — | Active |
| Mitta Engineering Oy CVR 3268431-2 | BoardBoard of Directors | 2022 – 2024 | — | Dissolved |
