| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| Barometern Fastigheter Aktiebolag CVR 5560587643 | BoardBoard of Directors | Since 2024 | — | Active |
| Lodgången 1 Aktiebolag CVR 5561310904 | BoardBoard of Directors | Since 2024 | — | Active |
| Arne Dufva Fastigheter AB CVR 5561717330 | BoardDeputy Board Member | Since 2022 | — | Dissolved |
| BEARB Aktiebolag CVR 5562069624 | BoardBoard of Directors | Since 2025 | — | Active |
| Gamla Bron Fastigheter Örby AB CVR 5562912260 | BoardBoard of Directors | Since 2024 | — | Active |
| Fastighetsaktiebolaget Direktören CVR 5563349116 | BoardBoard of Directors | Since 2019 | — | Dissolved |
| A&B Fastigheter i Bromma Aktiebolag CVR 5564926300 | BoardDeputy Board Member | Since 2019 | — | Dissolved |
| DFM Fastigheter AB CVR 5565956470 | BoardBoard of Directors | Since 2022 | — | Active |
| Gamma Fastighets AB CVR 5565958849 | BoardBoard of Directors | Since 2024 | — | Active |
| DFM Holding AB CVR 5566851043 | BoardBoard of Directors | Since 2022 | — | Active |
| Sakföraren 2 AB CVR 5566978457 | BoardDeputy Board Member | Since 2019 | — | Dissolved |
| Skevrodret Fastigheter AB CVR 5567124481 | BoardBoard of Directors | Since 2024 | — | Active |
| Enskede Fastighetsförvaltning AB CVR 5568581408 | BoardDeputy Board Member | Since 2019 | — | Dissolved |
| Arne Dufva Utveckling AB CVR 5568726797 | BoardBoard of Directors | Since 2024 | — | Active |
| Fulufjället 1 Fastigheter AB CVR 5569662827 | BoardBoard of Directors | Since 2021 | — | Active |
| SEFAB Omsorgsbostäder Nacka AB CVR 5569749699 | BoardBoard of Directors | Since 2025 | — | Active |
| Stockholm Valvankaret 3 Fastigheter AB CVR 5590011341 | BoardBoard of Directors | Since 2025 | — | Active |
| Arne Dufva Högdalen AB CVR 5592021520 | BoardBoard of Directors | Since 2024 | — | Active |
| Stockholm Trappsteget 2 Fastigheter AB CVR 5592021728 | BoardBoard of Directors | Since 2024 | — | Dissolved |
| SEFAB Förvaltning 1 AB CVR 5593301764 | BoardBoard of Directors | Since 2023 | — | Active |
| SEFAB Förvaltning 2 AB CVR 5593348237 | BoardBoard of Directors | Since 2023 | — | Active |
| SEFAB Förvaltning 3 AB CVR 5593395550 | BoardBoard of Directors | Since 2022 | — | Active |
| SEFAB Förvaltning 4 AB CVR 5593395675 | BoardBoard of Directors | Since 2022 | — | Active |
| Stockholm Barometern 3 Fastigheter AB CVR 5593407629 | BoardBoard of Directors | Since 2022 | — | Active |
| Kultjen 1 Fastigheter AB CVR 5593430779 | BoardBoard of Directors | Since 2023 | — | Active |
| SEFAB Invest AB CVR 5593460693 | BoardBoard of Directors | Since 2022 | — | Active |
| Stockholm Obligationen 7 Fastigheter AB CVR 5593479842 | BoardBoard of Directors | Since 2023 | — | Active |
| Räntefoten 2 Fastigheter AB CVR 5593501082 | BoardBoard of Directors | Since 2023 | — | Active |
| Blyertspennan 3 Fastigheter AB CVR 5593501280 | BoardBoard of Directors | Since 2023 | — | Active |
| Värnskatten 4 Fastigheter AB CVR 5593520769 | BoardBoard of Directors | Since 2023 | — | Active |
| Stockholm Vårlöken 8 Fastigheter AB CVR 5593544116 | BoardBoard of Directors | Since 2022 | — | Active |
| VSTBT Holding AB CVR 5593736795 | BoardBoard of Directors | Since 2022 | — | Active |
| Västboet i Stockholm AB CVR 5593736829 | BoardBoard of Directors | Since 2022 | — | Active |
| Arne Dufva Bandhagen AB CVR 5593841041 | BoardBoard of Directors | Since 2024 | — | Active |
| Arne Dufva Förvaltning AB CVR 5593876773 | BoardBoard of Directors | Since 2024 | — | Active |
| Stockholm Polarforskaren 7 Fastigheter AB CVR 5594040759 | BoardBoard of Directors | Since 2022 | — | Active |
| SEFAB Stockholms Enskilda Fastighetsägare AB CVR 5594200627 | BoardDeputy Board Member | Since 2023 | — | Active |
| JanDufva premises AB CVR 5594809518 | BoardDeputy Board Member | Since 2024 | — | Active |
| SEFAB Utveckling 1 AB CVR 5595067454 | BoardBoard of Directors | Since 2024 | — | Active |
| SEFAB Utveckling 2 AB CVR 5595070607 | BoardBoard of Directors | Since 2024 | — | Active |
| SEFAB Utveckling 3 AB CVR 5595389122 | BoardBoard of Directors | Since 2025 | — | Active |
| Company | Role | Period | Ownership | Status |
|---|---|---|---|---|
| John Mattson Katrineberg Holding AB CVR 5560975434 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| John Mattson HEFAB AB CVR 5563048510 | BoardDeputy Board Member | 2021 – 2021 | — | Active |
| Åkerkroken Fastigheter AB CVR 5566434022 | BoardDeputy Board Member | 2021 – 2022 | — | Dissolved |
| John Mattson Katrineberg AB CVR 5566840947 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| John Mattson Hägersten Parkering AB CVR 5569744948 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| John Mattson Hägersten 3 AB CVR 5590032537 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| John Mattson Lilla Bantorget AB CVR 5590080775 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| John Mattson Lilla Katrineberg 4 AB CVR 5590136619 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| John Mattson Tollare AB CVR 5590651179 | BoardBoard of Directors | 2021 – 2021 | — | Active |
| Person | Role | Shared companies | Profile |
|---|---|---|---|
| Chairman | 3companies | View profile | |
| Chief Executive Officer | 3companies | View profile | |
| Chief Auditor | 3companies | View profile | |
| Audit | 1company | View profile | |
| Chairman | 1company | View profile |