| Billdal JH Fastigheter AB CVR 5562476951 | BoardBoard of Directors | Since 2020 | — | Active |
| Hagmans Solenergi AB CVR 5563628097 | BoardBoard of Directors | Since 2020 | — | Active |
| Hansson & Jakobsson Storkök Aktiebolag CVR 5564377090 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| Stairhepp Riskulla AB CVR 5564557667 | BoardBoard of Directors | Since 2020 | — | Active |
| Hagmans Storkök AB CVR 5564749371 | BoardBoard of Directors | Since 2020 | — | Active |
| Hagman Förvaltning AB CVR 5566431846 | BoardBoard of Directors | Since 2020 | — | Active |
| Stretered Förvaltning AB CVR 5566609243 | BoardBoard of Directors | Since 2020 | — | Active |
| Trädgårdsvillan AB CVR 5568099120 | BoardBoard of Directors | Since 2020 | — | Active |
| Stretereds Omsorgshus AB CVR 5568099138 | BoardBoard of Directors | Since 2020 | — | Active |
| Backalager AB CVR 5568240229 | BoardBoard of Directors | Since 2020 | — | Active |
| Tingstad Förvaltning AB CVR 5569939241 | BoardBoard of Directors | Since 2020 | — | Active |
| Stretered Magasin AB CVR 5590108840 | BoardBoard of Directors | Since 2020 | — | Active |
| Energigrossisten i Göteborg AB CVR 5590354584 | BoardBoard of Directors | Since 2020 | — | Active |
| Jonas Hagman Fastigheter AB CVR 5590457999 | BoardBoard of Directors | Since 2020 | — | Active |
| Hagmans Kyl & Energiteknik AB CVR 5590532767 | BoardBoard of Directors | Since 2020 | — | Active |
| Stora LarsBengtsgården Utveckling AB CVR 5590974498 | BoardBoard of Directors | Since 2020 | — | Active |
| Båtbryggans Fastigheter AB CVR 5591482194 | BoardBoard of Directors | Since 2022 | — | Active |
| Jonas Hagman Holding AB CVR 5591502959 | BoardBoard of Directors | Since 2020 | — | Active |
| Hagmans styr & Fastighetsautomation AB CVR 5591552707 | BoardBoard of Directors | Since 2020 | — | Active |
| HJ Mark & Exploatering AB CVR 5591793897 | BoardBoard of Directors | Since 2020 | — | Active |
| Fastigheter JH Ringön AB CVR 5593184608 | BoardBoard of Directors | Since 2022 | — | Active |
| Adamus Fastigheter AB CVR 5593202004 | BoardBoard of Directors | Since 2022 | — | Active |
| JMH Fastigheter AB CVR 5593257339 | BoardBoard of Directors | Since 2022 | — | Active |
| Emilius Fastighet AB CVR 5593263295 | BoardBoard of Directors | Since 2022 | — | Active |
| Hagmans El AB CVR 5593892176 | BoardBoard of Directors | Since 2024 | — | Active |
| Stenmursvägens Fastigheter AB CVR 5594315615 | BoardBoard of Directors | Since 2023 | — | Active |
| Hagmans Kyl & Energiteknik Stockholm AB CVR 5594328089 | BoardBoard of Directors | Since 2023 | — | Active |
| Bostadsrättsföreningen Backa Företagspark CVR 7696282453 | BoardBoard of Directors | Since 2022 | — | Active |
| Bostadsrättsföreningen Eagle's Cliff 552 - Panorama & Pool CVR 7696394092 | BoardBoard of Directors | Since 2021 | — | Active |