| Sirius Agency AB CVR 5560435751 | BoardDeputy Board Member | Siden 2022 | — | Aktiv |
| Siriushuset AB CVR 5561360784 | BoardBoard of Directors | Siden 2025 | — | Aktiv |
| Sirius Rederi Fastigheter AB CVR 5562938075 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Sirius Rederi AB CVR 5564722311 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Sirius Holding AB CVR 5565915302 | BoardBoard of Directors | Siden 2019 | — | Opløst |
| Sirius Chartering AB CVR 5566443171 | BoardDeputy Board Member | Siden 2022 | — | Aktiv |
| Sirius Tankers AB CVR 5566777461 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| STOC Regina AB CVR 5567088181 | BoardDeputy Board Member | Siden 2019 | — | Opløst |
| STOC Petrea AB CVR 5567088280 | BoardDeputy Board Member | Siden 2019 | — | Opløst |
| Donsöhallen AB CVR 5567393573 | BoardBoard of Directors | Siden 2025 | — | Aktiv |
| Sirius Shipping AB CVR 5567725360 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Donsö Konferens AB CVR 5568899214 | BoardBoard of Directors | Siden 2020 | — | Aktiv |
| Star Ship AB CVR 5569407272 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Sirius Ship AB CVR 5569407280 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Flexship AB CVR 5590454368 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Sirius Crew AB CVR 5591297360 | BoardBoard of Directors | Siden 2022 | — | Aktiv |
| Porcus AB CVR 5594213752 | BoardBoard of Directors | Siden 2023 | — | Aktiv |
| Sirius Fiskebäck AB CVR 5594986076 | BoardBoard of Directors | Siden 2024 | — | Opløst |
| Sirius Gasum AB CVR 5594991720 | BoardBoard of Directors | Siden 2025 | — | Aktiv |
| Sirius Shipbuilding AB CVR 5595040568 | BoardBoard of Directors | Siden 2025 | — | Aktiv |
