| Billdal JH Fastigheter AB CVR 5562476951 | BoardDeputy Board Member | Since 2020 | — | Active |
| Hagmans Solenergi AB CVR 5563628097 | BoardDeputy Board Member | Since 2022 | — | Active |
| Trädgårdsvillan AB CVR 5568099120 | BoardDeputy Board Member | Since 2022 | — | Active |
| Stretereds Omsorgshus AB CVR 5568099138 | BoardDeputy Board Member | Since 2022 | — | Active |
| Stretered Magasin AB CVR 5590108840 | BoardDeputy Board Member | Since 2022 | — | Active |
| Jonas Hagman Fastigheter AB CVR 5590457999 | BoardBoard of Directors | Since 2020 | — | Active |
| Stora LarsBengtsgården Utveckling AB CVR 5590974498 | BoardDeputy Board Member | Since 2024 | — | Active |
| Jonas Hagman Holding AB CVR 5591502959 | BoardDeputy Board Member | Since 2020 | — | Active |
| HJ Mark & Exploatering AB CVR 5591793897 | BoardDeputy Board Member | Since 2020 | — | Active |
| Fastigheter JH Ringön AB CVR 5593184608 | BoardBoard of Directors | Since 2022 | — | Active |
| Adamus Fastigheter AB CVR 5593202004 | BoardDeputy Board Member | Since 2022 | — | Active |
| JMH Fastigheter AB CVR 5593257339 | BoardDeputy Board Member | Since 2022 | — | Active |
| Emilius Fastighet AB CVR 5593263295 | BoardBoard of Directors | Since 2022 | — | Active |
| Hagmans El AB CVR 5593892176 | BoardDeputy Board Member | Since 2024 | — | Active |
| Energifirman i Gbg AB CVR 5594001660 | BoardDeputy Board Member | Since 2022 | — | Active |
| Stenmursvägens Fastigheter AB CVR 5594315615 | BoardDeputy Board Member | Since 2023 | — | Active |
| William Hagman Holding AB CVR 5595202945 | BoardDeputy Board Member | Since 2025 | — | Active |
| Vaki Labs AB CVR 5595735621 | BoardDeputy Board Member | Since 2026 | — | Active |