| One.com SimpleSite ApS CVR 10079861 | ManagementManagement | 2001 – 2022 | — | Active |
| FIGARO AKTIEINVEST ApS CVR 20344636 | OtherFounder | 1997 – 2020 | — | Dissolved |
| AFVIKLINGSSELSKABET AF 17. SEPTEMBER 2001 A/S CVR 20591978 | ManagementManagement | 2000 – 2000 | — | Dissolved |
| ELK HOLDING A/S CVR 21906646 | BoardBoard of Directors | 1999 – 2001 | — | Dissolved |
| MORTEN ELK HOLDING ApS CVR 26337402 | OtherFounder | 2001 – 2011 | — | Dissolved |
| M. ELK HOLDING A/S CVR 26369207 | BoardBoard of Directors | 2001 – 2007 | — | Dissolved |
| J. ELK HOLDING A/S CVR 26369223 | BoardBoard of Directors | 2001 – 2007 | — | Dissolved |
| ELK & PARTNERS A/S CVR 27005632 | BoardBoard of Directors | 2003 – 2016 | — | Dissolved |
| DNMH Invest A/S CVR 18479249 | BoardBoard of Directors | 2013 – 2013 | — | Active |
| SIMPLESITE GM ApS CVR 27972454 | ManagementChief Executive Officer | 2004 – 2022 | — | Dissolved |
| 123HJEMMESIDE.NO ApS CVR 30732294 | ManagementChief Executive Officer | 2007 – 2022 | — | Dissolved |
| 123HEMSIDA.SE ApS CVR 30732332 | ManagementChief Executive Officer | 2007 – 2022 | — | Dissolved |
| PROJECT PANTHER ApS CVR 31855071 | ManagementManagement | 2010 – 2015 | — | Dissolved |
| 123WEBSITE.NL ApS CVR 32161553 | ManagementChief Executive Officer | 2009 – 2022 | — | Dissolved |
| 123MIWEB.ES ApS CVR 33387067 | ManagementManagement | 2011 – 2022 | — | Dissolved |
| 123KOTISIVU.FI ApS CVR 33387113 | ManagementManagement | 2011 – 2022 | — | Dissolved |
| 123SITEWEB.FR ApS CVR 33387164 | ManagementManagement | 2011 – 2022 | — | Dissolved |
| 123HOMEPAGE.IT ApS CVR 33387172 | ManagementManagement | 2011 – 2022 | — | Dissolved |
| JUBII ENRICHED MEDIA A/S CVR 33770383 | BoardBoard of Directors | 2013 – 2013 | — | Dissolved |
| 123WEBSEITE.DE ApS CVR 34212155 | ManagementManagement | 2012 – 2022 | — | Dissolved |
| 123WEBSITE SALB ApS CVR 34212163 | ManagementManagement | 2012 – 2022 | — | Dissolved |
| TIBALO ApS CVR 36548142 | BoardChairman | 2017 – 2021 | — | Dissolved |
| Kunai Ads ApS CVR 40278516 | ManagementManagement | 2019 – 2021 | — | Dissolved |
| J. ELK HOLDING A/S CVR 31185335 | BoardBoard of Directors | 2007 – 2014 | — | Active |
| PENNEO A/S CVR 35633766 | BoardBoard of Directors | 2021 – 2025 | — | Active |
| ELKS Holding ApS CVR 40114092 | ManagementManagement | 2018 – 2025 | — | Dissolved |
| Estaldo ApS CVR 40415807 | BoardBoard of Directors | 2023 – 2024 | — | Active |
