| Oy L. Simons Transport Ab CVR 0663112-9 | ManagementChief Executive Officer | Since 1997 | — | Active |
| Fastighets Ab Närpesvägen 11 CVR 0966339-6 | BoardBoard of Directors | Since 2014 | — | Active |
| Oy L.S. Recycling Ab CVR 2008759-6 | BoardBoard of Directors | Since 2005 | — | Active |
| Bostads Ab Närpes Torghuset CVR 2057921-6 | BoardChairperson | Since 2019 | — | Active |
| Oy Simons Invest Ab CVR 2083464-3 | BoardBoard of Directors | Since 2016 | — | Active |
| Oy Greenwatt Ab CVR 2579989-1 | BoardBoard of Directors | Since 2017 | — | Active |
| Greenwatt Ulppaanmäki OyAb CVR 2622236-5 | OtherDeputy Member | Since 2017 | — | Active |
| Greenwatt Ahvenneva Oy Ab CVR 2691849-3 | BoardBoard of Directors | Since 2017 | — | Active |
| Greenwatt Jakkukallio Oy Ab CVR 2691854-9 | OtherDeputy Member | Since 2020 | — | Active |
| Greenwatt Honkakangas Oy Ab CVR 2691868-8 | BoardBoard of Directors | Since 2017 | — | Active |
| Simons Infra Oy Ab CVR 2881231-8 | ManagementChief Executive Officer | Since 2018 | — | Active |
| När Rock Ab Oy CVR 3254214-6 | BoardBoard of Directors | Since 2021 | — | Active |