| Rakennuspalvelu Heinonen & Heinonen Oy CVR 0781732-0 | ManagementChief Executive Officer | Since 2004 | — | Active |
| Rakennustoimisto Heinonen & Heinonen CVR 1867864-5 | ManagementChief Executive Officer | Since 2004 | — | Active |
| E&L Service Oy CVR 2482746-7 | ManagementChief Executive Officer | Since 2012 | — | Active |
| Liedon H&H Service Oy CVR 2482749-1 | BoardBoard of Directors | Since 2012 | — | Active |
| Modern Group Oy CVR 2482750-4 | BoardBoard of Directors | Since 2012 | — | Active |
| H&H Asunnot Oy CVR 2484978-9 | ManagementChief Executive Officer | Since 2012 | — | Active |
| Liedon H&H Rakennus Oy CVR 2484991-4 | ManagementChief Executive Officer | Since 2012 | — | Active |
| LaattaLady Oy CVR 3448536-8 | OtherDeputy Member | Since 2024 | — | Active |