| DigiDisk ApS | Central Denmark Region |
| Digiseg | |
| DigiShares | |
| Digital Cab ApS | |
| Digital Hub Denmark | Capital Region of Denmark |
| Digital Revisor | |
| Digitech Trading Ltd | |
| Digitell A/S | |
| Digitypes | |
| DIRECTIT ApS | North Jutland Region |
| Discus Communications A/S | |
| DISIE | |
| DITA Exchange ApS | |
| Dixa | |
| Djurslands Bank A/S | Central Denmark Region |
| DK Hostmaster A/S | Capital Region of Denmark |
| DKT A/S | Region Zealand |
| DLIVER Group ApS | |
| DNP Denmark A/S | Region Zealand |
| DNS-IT ApS | |
| Doccura ApS | |
| DocTools ApS | Capital Region of Denmark |
| DoLand ApS | |
| Doprax | |
| DoseSystem A/S | |
| Dot Marketing ApS | |
| dotSEO | Central Denmark Region |
| Draupnir Bio | |
| Draware A/S | Capital Region of Denmark |
| Dreamdata | |
| Dreamplan.io ApS | |
| DSI Dantech A/S | |
| DTU Science Park | Capital Region of Denmark |
| DTU Space | Capital Region of Denmark |
| Dudal Webdesign | Central Denmark Region |
| DV Consulting A/S | |
| Dynamic-it | Central Denmark Region |
| DynamicWeb | Central Denmark Region |
| Dynasty Studios | |
| e-commerce technology | Central Denmark Region |
| e-nettet A/S | |
| e-reactor ApS | Capital Region of Denmark |
| Easyflow Agency | |
| easyGUI software solutions | Region Zealand |
| Easynet | Central Denmark Region |
| EasyPractice | |
| EasyRobotics ApS | |
| Easysize | |
| EBM Scandinavia A/S | Central Denmark Region |
| Ecreo | Region of Southern Denmark |