| Kimbrer Data ApS | North Jutland Region |
| KindSoftware | Capital Region of Denmark |
| Kiwi Multimedia | Capital Region of Denmark |
| Kjaer Data | |
| Klappir | |
| Klausen og Partners A/S | |
| KLID | Capital Region of Denmark |
| KLIFO | |
| Klimate ApS | |
| Klimate ApS | |
| Klyver Electronics A/S | Capital Region of Denmark |
| KMD A/S | Capital Region of Denmark |
| KN-DATA ApS | |
| Knowledge Cube A/S | |
| KOBOTS Comppany ApS | |
| Kombit A/S | |
| Kompasbank A/S | Capital Region of Denmark |
| Kompetera A/S | Capital Region of Denmark |
| Konform A/S | Capital Region of Denmark |
| Konxion | North Jutland Region |
| Kortermann-IT | |
| KP Consulting ApS | |
| Kraft & Partners | |
| Kram Telecom A/S | North Jutland Region |
| Kreditbanken A/S | Region of Southern Denmark |
| KRING A/S | |
| Kruso | |
| KTJ-Media.dk | Capital Region of Denmark |
| ktp Data A/S | Central Denmark Region |
| KUBO Robotics ApS | Region of Southern Denmark |
| KuCon ApS | |
| Kumento | Region of Southern Denmark |
| Kunde & Co. | |
| Kviknet ApS | |
| Kwarts | |
| KYOCERA Document Solutions Danmark A/S | Capital Region of Denmark |
| Københavns Universitet | Capital Region of Denmark |
| Københavns Universitet - Datalogisk Institut | Capital Region of Denmark |
| Københavns Universitet - Institut for Matematiske Fag | Capital Region of Denmark |
| Københavns Universitet - Niels Bohr Institutet | Capital Region of Denmark |
| Københavns Universitet Institut for Fødevarevidenskab | |
| L-H Data | Region Zealand |
| Lab08 | Capital Region of Denmark |
| Labitat | |
| Labster ApS | Capital Region of Denmark |
| Landfolk A/S | |
| Langstack ApS | |
| LanSoft ApS | Capital Region of Denmark |
| Laptops.dk | Region of Southern Denmark |
| Larsen Digital ApS | |