| Bygg-Sjögren Aktiebolag CVR 5560074451 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Adema Fastighets Aktiebolag CVR 5560269747 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| ES Bygg i Linköping Aktiebolag CVR 5560433004 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Fastighetsaktiebolaget A-presshuset CVR 5560482779 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| F.G. Larsson Byggnads Aktiebolag CVR 5560588013 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Byggnads Aktiebolaget Bröderna Hansson CVR 5560640897 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Aktiebolaget Villaproduktion CVR 5560660051 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| SIAB Invest Aktiebolag CVR 5560697749 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Målerisystem i Gävle Aktiebolag CVR 5560731787 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| SIAB Consulting Aktiebolag CVR 5560767500 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Aktiebolaget Remusa CVR 5560809567 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Sundsporten Aktiebolag CVR 5560972159 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Aktiebolaget Väggmontage CVR 5561034975 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| SIAB Anläggning Mora Aktiebolag CVR 5561238667 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Trånghalla Rör Aktiebolag CVR 5561899088 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Råsnäs Entreprenad Aktiebolag CVR 5561929422 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Vigor Aktiebolag CVR 5562151083 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Aktiebolaget Romusal CVR 5562589779 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| SIAB VA-Teknik Aktiebolag CVR 5563929677 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Ludvika Asfaltservice Aktiebolag CVR 5564151669 | BoardDeputy Board Member | Since 2023 | — | Dissolved |
| Siab Miljö Aktiebolag CVR 5564284296 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| NewSec Fastighetsservice AB CVR 5565598819 | BoardBoard of Directors | Since 2023 | — | Dissolved |
