| Tampereen Särkänniemi Oy CVR 0155085-6 | BoardChairperson | Since 2024 | — | Active |
| Kemppiset Oy CVR 0895652-5 | BoardBoard of Directors | Since 2020 | — | Active |
| Hakamettän Pojat Oy CVR 2849317-7 | BoardBoard of Directors | Since 2022 | — | Active |
| Zuppari Group Oy CVR 2853468-8 | BoardBoard of Directors | Since 2022 | — | Active |
| Ravintola Viila Oy CVR 2854220-7 | BoardBoard of Directors | Since 2022 | — | Active |
| Rakennustyö Arto Hirvonen Oy CVR 3097091-3 | BoardBoard of Directors | Since 2024 | — | Active |
| Armstrong Group Oy CVR 3241642-2 | ManagementChief Executive Officer | Since 2021 | — | Active |
| Ammattiturva Oulu Oy CVR 3251266-8 | ManagementChief Executive Officer | Since 2021 | — | Active |
| Ammattiturva Flex Oy CVR 3252113-4 | BoardChairperson | Since 2021 | — | Active |
| Ammattiturva Jiiri Oy CVR 3288342-6 | BoardChairperson | Since 2022 | — | Active |
| Särkänniemen Kehitys Oy CVR 3332199-4 | BoardBoard of Directors | Since 2024 | — | Active |
| Armstrong Next Oy CVR 3414200-7 | BoardChairperson | Since 2024 | — | Active |
| Armstrong HML Oy CVR 3423611-8 | BoardChairperson | Since 2024 | — | Active |
| Hml Sports Oy CVR 3444953-5 | BoardBoard of Directors | Since 2024 | — | Active |
| Armstrong Henkilöstöpalvelut Rovaniemi Oy CVR 3498664-8 | BoardBoard of Directors | Since 2025 | — | Active |
| Arhi Talo Oy CVR 3547498-6 | BoardChairperson | Since 2025 | — | Active |
| Armstrong Henkilöstöpalvelut Helsinki Oy CVR 3553244-5 | BoardChairperson | Since 2025 | — | Active |
| Tervo Asunnot Oy CVR 3563156-6 | BoardChairperson | Since 2026 | — | Active |
| Elevare Capital Oy CVR 3607950-7 | BoardChairperson | Since 2026 | — | Active |
| Elevare Capital GP I Oy CVR 3626613-4 | OtherDeputy Member | Since 2026 | — | Active |
