| Veddige Åkeriaktiebolag CVR 5560905993 | BoardBoard of Directors | Since 2020 | — | Active |
| Hyltebruks Transport Aktiebolag CVR 5561617209 | BoardBoard of Directors | Since 2022 | — | Active |
| Mantum Entreprenad i Sverige AB CVR 5561744714 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| Mantum Fastigheter AB CVR 5564052776 | BoardBoard of Directors | Since 2022 | — | Active |
| Mantum Logistics AB CVR 5564394426 | BoardBoard of Directors | Since 2022 | — | Active |
| Mantum Entreprenad AB CVR 5566304142 | BoardBoard of Directors | Since 2022 | — | Active |
| Trevol AB CVR 5566744560 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Petterssons Betongtransporter AB CVR 5567283667 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| Nosign Holding Aktiebolag CVR 5567897516 | BoardBoard of Directors | Since 2020 | — | Active |
| Mantum Holding AB CVR 5567909675 | BoardBoard of Directors | Since 2020 | — | Active |
| CBL Invest AB CVR 5568164965 | BoardBoard of Directors | Since 2022 | — | Active |
| Mantum Special AB CVR 5568464662 | BoardBoard of Directors | Since 2022 | — | Active |
| Familjen Strömqvist Fastigheter AB CVR 5569806168 | OtherExternal Signatory | Since 2022 | — | Active |
| Conlast AB CVR 5593440729 | BoardBoard of Directors | Since 2022 | — | Dissolved |
| VÅAB Service AB CVR 5595187534 | BoardBoard of Directors | Since 2025 | — | Active |