| Karlstads Rörmontage Aktiebolag CVR 5561236034 | BoardBoard of Directors | Since 2025 | — | Active |
| GS-RÖR AB CVR 5562766070 | BoardBoard of Directors | Since 2025 | — | Active |
| Sandbäckens Rör i Växjö AB CVR 5565966818 | BoardBoard of Directors | Since 2021 | — | Active |
| Rörbolaget M. Söderkvist AB CVR 5566615034 | BoardBoard of Directors | Since 2025 | — | Active |
| Rörbolaget i Nässjö AB CVR 5566712757 | BoardBoard of Directors | Since 2020 | — | Dissolved |
| Sandbäckens Rör i Jönköping AB CVR 5568422918 | BoardBoard of Directors | Since 2021 | — | Active |
| Sandbäckens Rör i Göteborg AB CVR 5569093619 | BoardBoard of Directors | Since 2021 | — | Active |
| Sandbäckens Rör i Uddevalla AB CVR 5569482648 | BoardBoard of Directors | Since 2020 | — | Active |
| Sandbäckens Rör i Vetlanda AB CVR 5569853681 | BoardBoard of Directors | Since 2025 | — | Active |
| Sandbäckens Rör i Ronneby AB CVR 5590181300 | BoardBoard of Directors | Since 2021 | — | Active |
| Sandbäckens Rör i Kalmar AB CVR 5590185681 | BoardBoard of Directors | Since 2021 | — | Active |
| Sandbäckens Rör i Malmö AB CVR 5590197967 | BoardBoard of Directors | Since 2021 | — | Active |
| Sandbäckens Rör i Bjäre/Halmstad AB CVR 5590349493 | BoardBoard of Directors | Since 2021 | — | Active |
| Sandbäckens Rör i Lund AB CVR 5591914840 | BoardBoard of Directors | Since 2021 | — | Active |
| Sandbäckens Rör i Varberg AB CVR 5593047953 | BoardBoard of Directors | Since 2022 | — | Active |
| Sandbäckens Rör i Landskrona / Helsingborg AB CVR 5593047979 | BoardBoard of Directors | Since 2022 | — | Active |
| Sandbäckens El och Automation i Malmö AB CVR 5595387415 | BoardBoard of Directors | Since 2025 | — | Active |
| Sandbäckens El i Helsingborg AB CVR 5595395319 | BoardBoard of Directors | Since 2026 | — | Active |
| Svanevik Funkön va ekonomisk förening CVR 7696247381 | BoardBoard of Directors | Since 2020 | — | Active |