| TELECOM ERHVERV A/S CVR 10027306 | BoardChairman | 2003 – 2003 | — | Dissolved |
| SYNIVERSE TECHNOLOGIES ApS CVR 10352282 | BoardChairman | 2006 – 2009 | — | Dissolved |
| TDC SONG DANMARK A/S CVR 20444037 | BoardChairman | 2009 – 2009 | — | Dissolved |
| HARALD HALBERG EXPORT A/S CVR 25066758 | BoardBoard of Directors | 2013 – 2014 | — | Dissolved |
| GUAVA COMMUNICATION - VEST A/S CVR 25249607 | BoardBoard of Directors | 2001 – 2005 | — | Dissolved |
| TDC HOSTING A/S CVR 25595696 | BoardChairman | 2005 – 2005 | — | Dissolved |
| YOUSEE A/S CVR 25767578 | BoardBoard of Directors | 2012 – 2013 | — | Dissolved |
| MAC BAREN PRODUCTION A/S CVR 26218055 | BoardBoard of Directors | 2013 – 2014 | — | Dissolved |
| ZEN SYSTEMS A/S CVR 26920167 | BoardBoard of Directors | 2018 – 2018 | — | Dissolved |
| GlobalConnect NN A/S CVR 27172776 | ManagementChief Executive Officer | 2018 – 2021 | — | Dissolved |
| SUPERTEL A/S CVR 27195601 | BoardChairman | 2018 – 2018 | — | Dissolved |
| BOOMTOWN A/S CVR 27233538 | BoardChairman | 2003 – 2004 | — | Dissolved |
| SYNIVERSE DENMARK ApS CVR 27980570 | BoardChairman | 2006 – 2009 | — | Dissolved |
| GIGACONTENT A/S CVR 28333730 | BoardBoard of Directors | 2018 – 2018 | — | Dissolved |
| WP ROAMING DENMARK ApS CVR 28866542 | BoardBoard of Directors | 2006 – 2009 | — | Dissolved |
| SYNIVERSE TECHNOLOGIES PAYMENT SERVICES ApS CVR 29226350 | ManagementManagement | 2006 – 2009 | — | Dissolved |
| GlobalConnect Outsourcing Services A/S CVR 29978204 | BoardBoard of Directors | 2018 – 2018 | — | Dissolved |
| EG HOLDING A/S CVR 31599083 | BoardBoard of Directors | 2013 – 2014 | — | Dissolved |
| HALBERG KAPITAL A/S CVR 31759137 | BoardBoard of Directors | 2010 – 2012 | — | Dissolved |
| ZYLINC A/S CVR 28888597 | BoardBoard of Directors | 2010 – 2011 | — | Active |
| AX IV EG HOLDING III ApS CVR 35381139 | BoardBoard of Directors | 2013 – 2019 | — | Dissolved |
| TDC Holding A/S CVR 14773908 | ManagementManagement | 2010 – 2013 | — | Active |
| Skynet Invest A/S CVR 38234552 | ManagementChief Executive Officer | 2018 – 2019 | — | Dissolved |
| GlobalConnect Ejendomsselskab ApS CVR 38699679 | ManagementChief Executive Officer | 2018 – 2018 | — | Dissolved |
| FUZION A/S CVR 25780582 | BoardBoard of Directors | 2018 – 2018 | — | Active |
| SE 274711 A/S CVR 56418210 | BoardBoard of Directors | 2010 – 2012 | — | Active |
| NETDESIGN A/S CVR 89928311 | BoardChairman | 2009 – 2012 | — | Dissolved |
| HALBERG PROPERTIES A/S CVR 30523326 | BoardBoard of Directors | 2010 – 2012 | — | Active |
| DKTV A/S CVR 17981684 | BoardChairman | 2013 – 2013 | — | Active |
| SYNIVERSE TECHNOLOGIES MESSAGING ApS CVR 26161983 | ManagementChief Executive Officer | 2006 – 2009 | — | Active |
| EG Danmark A/S CVR 84667811 | BoardBoard of Directors | 2013 – 2019 | — | Active |
| HALBERG A/S CVR 34076510 | BoardBoard of Directors | 2010 – 2018 | — | Active |
| MAC BAREN TOBACCO COMPANY A/S CVR 88212215 | BoardBoard of Directors | 2013 – 2017 | — | Active |
