| KETAB AB CVR 5562845924 | BoardBoard of Directors | Since 2024 | — | Active |
| Eltele Styrkan Ocez AB CVR 5562893635 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| SWE Sprinkler AB CVR 5567236608 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| Larm & Teletjänst i Bromma AB CVR 5567914501 | BoardBoard of Directors | Since 2022 | — | Active |
| BST South AB CVR 5568229248 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| BST Brandskyddsteamet AB CVR 5568790512 | BoardDeputy Board Member | Since 2022 | — | Active |
| BST Brandskyddsteamet Mitt AB CVR 5569068603 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| Brudkronan AB CVR 5569899817 | BoardBoard of Directors | Since 2020 | — | Active |
| BST Södra AB CVR 5590178090 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| BST West AB CVR 5590705132 | BoardBoard of Directors | Since 2021 | — | Dissolved |
| BST Brandskyddsteamet Skåne AB CVR 5591074629 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| BST Infra AB CVR 5591150965 | BoardBoard of Directors | Since 2021 | — | Dissolved |
| Sprinkler Service Stockholm Aktiebolag CVR 5591488548 | BoardDeputy Board Member | Since 2022 | — | Dissolved |
| BST Group AB CVR 5591995005 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| BK9 Invest AB CVR 5592004799 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| MSAB Modern sprinkler AB CVR 5593289969 | BoardBoard of Directors | Since 2022 | — | Dissolved |
