| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| Paikallis-Sähkö Oy CVR 0243115-4 | BoardChairperson | Since 2024 | — | Active |
| Asunto Oy Iirislahden Aalto CVR 0550810-2 | BoardBoard of Directors | Since 2012 | — | Active |
| Kylmäkolmonen Oy CVR 0628949-0 | BoardChairperson | Since 2024 | — | Active |
| LVI-Trio Oy CVR 0631725-2 | BoardChairperson | Since 2024 | — | Active |
| Insinööritoimisto Unto Rantanen Oy CVR 0633205-7 | BoardChairperson | Since 2024 | — | Active |
| Ajansähkö Oy CVR 0659453-2 | OtherConfidential Clerk | Since 2024 | — | Active |
| Assonant Oy CVR 0943471-0 | BoardChairperson | Since 2024 | — | Active |
| Kuusitunturi Lahti Oy CVR 0984757-4 | BoardChairperson | Since 2024 | — | Active |
| JRA-Sähkö Oy CVR 1006803-3 | BoardChairperson | Since 2024 | — | Active |
| Sioma Oy CVR 1094069-6 | BoardChairperson | Since 2026 | — | Active |
| Vesijohtoliike J. Laitinen Oy CVR 1451678-8 | BoardChairperson | Since 2024 | — | Active |
| Mikkelin Sähköasennus Oy CVR 1483821-8 | BoardChairperson | Since 2024 | — | Dissolved |
| Paloilmoitinhuolto Jukka Pohjola Oy CVR 1556928-3 | BoardChairperson | Since 2024 | — | Dissolved |
| Kokkolan LVIS-Palvelu Oy CVR 1749447-3 | BoardChairperson | Since 2024 | — | Active |
| Lämpöjokeri Oy CVR 1780527-8 | BoardChairperson | Since 2024 | — | Active |
| LVI-AITTA OY CVR 1917195-0 | BoardChairperson | Since 2024 | — | Active |
| Mikenti Talotekniikka Oy CVR 1956289-8 | BoardChairperson | Since 2024 | — | Active |
| Espit Oy CVR 2034719-1 | BoardChairperson | Since 2024 | — | Active |
| JP Yhtiöt Oy CVR 2047160-0 | BoardChairperson | Since 2024 | — | Active |
| Automation T&N Ab CVR 2086375-1 | BoardChairperson | Since 2024 | — | Active |
| DT Systems Oy CVR 2122579-4 | BoardChairperson | Since 2026 | — | Active |
| Ilmastointi-Mikenti Oy CVR 2123868-3 | BoardChairperson | Since 2024 | — | Active |
| Calto Oy CVR 2153703-4 | BoardChairperson | Since 2024 | — | Active |
| Calto Service Oy CVR 2153713-0 | BoardChairperson | Since 2024 | — | Active |
| Mikenti Oy CVR 2195876-0 | BoardChairperson | Since 2024 | — | Active |
| Tornion ilmastointitekniikka Oy CVR 2206574-5 | BoardChairperson | Since 2024 | — | Dissolved |
| Alti-Systems Oy CVR 2288108-0 | BoardChairperson | Since 2024 | — | Active |
| JT-Sähkötekniikka Oy CVR 2292933-9 | BoardChairperson | Since 2024 | — | Active |
| Capitis Control Oy CVR 2302574-5 | BoardChairperson | Since 2024 | — | Active |
| Tammi Kiinteistötekniikka Oy CVR 2316723-3 | BoardChairperson | Since 2024 | — | Active |
| Rauno Saari Oy CVR 2328295-2 | BoardChairperson | Since 2024 | — | Active |
| KVL Putki- ja Poltinhuolto Oy CVR 2413450-5 | BoardChairperson | Since 2024 | — | Active |
| Quattroservices Kaakkois-Suomi Oy CVR 2416249-3 | BoardChairperson | Since 2024 | — | Active |
| Ilmastointi ja Pelti Hakala Oy CVR 2436311-3 | BoardChairperson | Since 2024 | — | Active |
| Mikenti-Virtoo Oy CVR 2451463-9 | BoardChairperson | Since 2024 | — | Active |
| SW-Sähkö Oy CVR 2533554-4 | BoardChairperson | Since 2024 | — | Active |
| Lvi Tasacon Oy CVR 2613736-3 | OtherConfidential Clerk | Since 2025 | — | Dissolved |
| Rovaniemen Sähkö- ja Säätölaite Oy CVR 2622390-7 | BoardChairperson | Since 2026 | — | Active |
| Quattroservices Tampere Oy CVR 2640323-8 | BoardChairperson | Since 2024 | — | Active |
| Calto Tampere Oy CVR 2660369-4 | BoardChairperson | Since 2024 | — | Active |
| Avitor sähkö Oy CVR 2677833-9 | BoardChairperson | Since 2026 | — | Active |
| QMG Partners Oy CVR 2685024-9 | BoardChairperson | Since 2024 | — | Dissolved |
| Optimation Finland Oy CVR 2708916-4 | BoardChairperson | Since 2024 | — | Active |
| Hausmatic Oy CVR 2733630-5 | BoardChairperson | Since 2024 | — | Active |
| Nevera Oy CVR 2791521-9 | OtherConfidential Clerk | Since 2026 | — | Active |
| KT Paloturvapalvelut Oy CVR 2819412-6 | BoardChairperson | Since 2024 | — | Active |
| Nimlas Finland Holding Oy CVR 2824748-6 | BoardChairperson | Since 2024 | — | Active |
| Nimlas Finland Oy CVR 2824749-4 | ManagementChief Executive Officer | Since 2024 | — | Active |
| Movitek Oy CVR 2824750-7 | BoardChairperson | Since 2024 | — | Active |
| Cervius Group Oy CVR 2890133-7 | BoardChairperson | Since 2024 | — | Active |
| Quattroservices Oy CVR 2937890-4 | BoardChairperson | Since 2024 | — | Active |
| Ab ORS Service Oy CVR 2940596-8 | BoardChairperson | Since 2024 | — | Active |
| FireSec Oy CVR 2997154-8 | BoardChairperson | Since 2024 | — | Active |
| CONSILIARIUM OY CVR 3191087-5 | OtherDeputy Member | Since 2021 | — | Active |
| Nimlas Finland BidCo Oy CVR 3226737-5 | ManagementChief Executive Officer | Since 2024 | — | Active |
| Ässäenergia Oy CVR 3261207-9 | BoardChairperson | Since 2024 | — | Active |
| Mesiel Oy CVR 3270131-1 | BoardChairperson | Since 2024 | — | Active |
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| Skanska Oy CVR 0102282-6 | OtherPerson with significant control | 2018 – 2025 | — | Active |
| Skanska Talonrakennus Oy CVR 1772433-9 | OtherPerson with significant control | 2018 – 2024 | — | Active |
| As. Oy Lahden Kyösti Kallion katu 3 CVR 2554140-1 | BoardChairperson | 2020 – 2020 | — | Active |
| Palokatkot Vänskä Oy CVR 2844562-6 | BoardChairperson | 2024 – 2025 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Chief Executive Officer | 1company | View profile | |
| Audit | 1company | View profile | |
| Person with significant control | 1company | View profile | |
| Person with significant control | 1company | View profile | |
| Chairperson | 1company | View profile |