| Danish Tech Startups | |
| Danline | Region of Southern Denmark |
| Danline Innovation A/S | |
| Danmarks Nationalbank | Capital Region of Denmark |
| Danmarks Tekniske Universitet | Capital Region of Denmark |
| Danmarks Tekniske Universitet - Institut for Matematik og Computer Science | Capital Region of Denmark |
| Danmarks Tekniske Universitet - Quantum DTU | |
| Danmon Group A/S | Capital Region of Denmark |
| Danotek A/S | Central Denmark Region |
| Danphone A/S | North Jutland Region |
| Danpower Electronics ApS | Capital Region of Denmark |
| Dansk Internet Forum | Capital Region of Denmark |
| Dansk IT | Capital Region of Denmark |
| Danske Bank A/S | |
| Danske Lønsystemer A/S | Capital Region of Denmark |
| DanSolar Energi ApS | |
| DAPA A/S | |
| Data & More ApS | |
| Data Center Map | Region of Southern Denmark |
| Data-Link ApS | |
| Databoks ApS | Capital Region of Denmark |
| Datacon | Capital Region of Denmark |
| Datahjaelp | Central Denmark Region |
| Datalogik A/S | |
| DataManix | |
| Datamarked.dk | North Jutland Region |
| Dataminds A/S | |
| Dataproces Group A/S | |
| DataSign | |
| Datatilsynet | Capital Region of Denmark |
| Datawareness ApS | |
| Dataworld A/S | |
| DBA Consult | |
| DBVision | Capital Region of Denmark |
| Debbie | |
| Debriefing Software A/S | Central Denmark Region |
| Defensin Therapeutics ApS | |
| Delfi Technologies A/S | Region Zealand |
| Delogue PLM | |
| Delta Data Udvikling A/S | North Jutland Region |
| DeltaShop.dk Thornedahl ApS | Capital Region of Denmark |
| Denver Electronics A/S | Central Denmark Region |
| Design'r'us | Central Denmark Region |
| Detectronic A/S | North Jutland Region |
| Develco A/S | |
| Develco Products A/S | |
| Develop Diverse | |
| Dezide ApS | North Jutland Region |
| DGI Impact | Region of Southern Denmark |
| DiaPhoni A/S | North Jutland Region |