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| Castra Consulting AB CVR 5565724241 | BoardBoard of Directors | Siden 2023 | — | Opløst |
| Hammarin Invest AB CVR 5565819975 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| Castra Öst AB CVR 5566280417 | BoardBoard of Directors | Siden 2020 | — | Aktiv |
| Castra Väst AB CVR 5566956396 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
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| Castra Mellansverige Resources AB CVR 5567547012 | BoardBoard of Directors | Siden 2020 | — | Aktiv |
| Castra Väst Systemutveckling AB CVR 5567673024 | BoardBoard of Directors | Siden 2020 | — | Aktiv |
| m2 Bostadsmäkleri AB CVR 5567969042 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Castra Väst IT Management AB CVR 5568973266 | BoardBoard of Directors | Siden 2020 | — | Aktiv |
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| Castra Öst Systemutveckling AB CVR 5569942260 | BoardBoard of Directors | Siden 2020 | — | Aktiv |
| Castra Mellansverige AB CVR 5591122584 | BoardBoard of Directors | Siden 2021 | — | Aktiv |
| Castra Mellansverige systemutveckling Örebro AB CVR 5591574719 | BoardBoard of Directors | Siden 2020 | — | Opløst |
| A New Period AB CVR 5591680193 | BoardDeputy Board Member | Siden 2020 | — | Aktiv |
| Castra Väst Industriteknik AB CVR 5591681167 | BoardBoard of Directors | Siden 2020 | — | Aktiv |
| Rego Technology AB CVR 5594772823 | BoardDeputy Board Member | Siden 2024 | — | Aktiv |
