| KARGAARD A/S CVR 13627002 | BoardBoard of Directors | 2003 – 2007 | — | Dissolved |
| TEKNIQ Arbejdsgiverne - Industri & Installation CVR 26349842 | BoardBoard of Directors | 2017 – 2023 | — | Active |
| VVS SØBERG V/BIRTHE OG KJELD SØBERG CVR 14777938 | OtherStakeholder | 1991 – 2008 | — | Active |
| SYDGAS ApS CVR 20535997 | ManagementChief Executive Officer | 2017 – 2020 | — | Dissolved |
| SØNDERJYDSK BYGGESELSKAB ApS CVR 25292464 | OtherFounder | 2000 – 2016 | — | Dissolved |
| HADERSLEV ENTREPRISESELSKAB ApS CVR 26370205 | ManagementManagement | 2002 – 2017 | — | Dissolved |
| ENERGI OG MILJØ VOJENS A/S CVR 27907849 | OtherFounder | 2004 – 2022 | — | Dissolved |
| LYGAS+ A/S CVR 31162521 | BoardBoard of Directors | 2022 – 2022 | — | Dissolved |
| ARKITEKTFIRMAET 78 JENS KR. ANDREASEN A/S CVR 31938090 | BoardBoard of Directors | 2009 – 2010 | — | Dissolved |
| VARMESERVICE SJÆLLAND ApS CVR 32294146 | ManagementManagement | 2012 – 2015 | — | Dissolved |
| DONG ENERGY SERVICE 1 A/S CVR 32472907 | BoardBoard of Directors | 2009 – 2009 | — | Dissolved |
| DONG ENERGY SERVICE 2 A/S CVR 32474047 | BoardBoard of Directors | 2009 – 2009 | — | Dissolved |
| VVS SØBERG ApS, SJÆLLAND CVR 33786891 | ManagementManagement | 2011 – 2013 | — | Dissolved |
| SØBERG INDUSTRI A/S CVR 34046018 | BoardChairman | 2011 – 2012 | — | Dissolved |
| DCC Energiservice Center A/S CVR 30362748 | ManagementChief Executive Officer | 2019 – 2023 | — | Active |
| El-installatør H. Munck's og hustr us fond CVR 34041865 | BoardBoard of Directors | 2017 – 2023 | — | Active |
| Søberg NewCo ApS CVR 44931877 | OtherFounder | 2024 – 2024 | — | Dissolved |
| Arbejdsgiverne CVR 50837416 | BoardBoard of Directors | 2019 – 2021 | — | Active |
| SØBERG HOLDING ApS CVR 27504957 | OtherFounder | 2003 – 2026 | — | Dissolved |
| TEKON A/S CVR 34731330 | BoardBoard of Directors | 2012 – 2014 | — | Dissolved |
