| Stena Aluminium AB CVR 5560393075 | BoardBoard of Directors | Since 2021 | — | Active |
| Stena Stål Aktiebolag CVR 5560775925 | BoardBoard of Directors | Since 2020 | — | Active |
| Stena Miljöteknik Aktiebolag CVR 5561390922 | BoardBoard of Directors | Since 2022 | — | Active |
| STENA OIL AKTIEBOLAG CVR 5562360288 | BoardBoard of Directors | Since 2022 | — | Active |
| Stena Technoworld Aktiebolag CVR 5564432184 | BoardBoard of Directors | Since 2021 | — | Active |
| Rossholmen AB CVR 5565548269 | BoardBoard of Directors | Since 2022 | — | Active |
| Stena New Ventures AB CVR 5566288246 | BoardBoard of Directors | Since 2022 | — | Active |
| Stena Nera AB CVR 5567195465 | BoardBoard of Directors | Since 2022 | — | Active |
| Stena Recycling International Aktiebolag CVR 5567322903 | BoardBoard of Directors | Since 2022 | — | Active |
| Dannholmen AB CVR 5568672918 | BoardBoard of Directors | Since 2022 | — | Active |
| Stena Trade & Industry AB CVR 5590699210 | BoardBoard of Directors | Since 2025 | — | Active |
| Bagliora AB CVR 5591586549 | BoardBoard of Directors | Since 2020 | — | Active |
| HALOSEP AB CVR 5591975478 | BoardBoard of Directors | Since 2020 | — | Active |
| Stena Terminals AB CVR 5593178253 | BoardBoard of Directors | Since 2022 | — | Active |
| Stena Confidential AB CVR 5594187287 | BoardBoard of Directors | Since 2023 | — | Active |