| Corvara Industri & Skadeservice i Stockholm AB CVR 5560866534 | ManagementChief Executive Officer | Since 2019 | — | Dissolved |
| Roteac AB CVR 5565385258 | BoardDeputy Board Member | Since 2021 | — | Active |
| Mälarfog Sverige AB CVR 5566136924 | ManagementChief Executive Officer | Since 2019 | — | Dissolved |
| Claes Westerlund Byggnad AB CVR 5566330493 | BoardBoard of Directors | Since 2020 | — | Active |
| Claes Westerlund Sanering AB CVR 5566330501 | BoardBoard of Directors | Since 2020 | — | Active |
| Kavaro AB CVR 5566330527 | BoardBoard of Directors | Since 2022 | — | Active |
| Team Westerlund Racing AB CVR 5566394150 | BoardBoard of Directors | Since 2020 | — | Active |
| Grepen Marin AB CVR 5567091375 | BoardBoard of Directors | Since 2020 | — | Active |
| Kooge Fastighets AB CVR 5567287494 | BoardBoard of Directors | Since 2022 | — | Active |
| Länna Konsult AB CVR 5567467401 | BoardDeputy Board Member | Since 2020 | — | Active |
| Strömshäll 11 i Stockholm AB CVR 5567566327 | BoardBoard of Directors | Since 2022 | — | Active |
| Westerlund Invest AB CVR 5569246225 | BoardBoard of Directors | Since 2022 | — | Active |
| Sjömärket Öregrund AB CVR 5590366778 | BoardDeputy Board Member | Since 2022 | — | Active |
| Guwe Fastigheter AB CVR 5590739206 | BoardBoard of Directors | Since 2022 | — | Active |
| Pickmeup Sweden AB CVR 5591437669 | BoardDeputy Board Member | Since 2025 | — | Active |
| Traneberg utveckling AB CVR 5591831572 | BoardBoard of Directors | Since 2023 | — | Dissolved |
| Midsommarkransen Förvaltning AB CVR 5592357544 | BoardBoard of Directors | Since 2021 | — | Dissolved |
| Kavaro Traneberg Holding AB CVR 5594392820 | BoardBoard of Directors | Since 2023 | — | Active |
| Bostadsrättsföreningen Tranebergsporten CVR 7696425227 | BoardBoard of Directors | Since 2025 | — | Active |
| Papperskniven 10 Ekonomisk förening CVR 7696430763 | BoardBoard of Directors | Since 2025 | — | Active |