| Bricksite ApS | Central Denmark Region |
| Bright Star Studio | |
| Bright Star Studios | |
| Brodersen Controls A/S | Capital Region of Denmark |
| Brother Nordic A/S | Capital Region of Denmark |
| BrugteComputer.dk | Capital Region of Denmark |
| Bruhn NewTech A/S | Capital Region of Denmark |
| Buchs A/S | Central Denmark Region |
| BusinessMinds | Capital Region of Denmark |
| Butter | |
| byFounders VC | Capital Region of Denmark |
| C&H System A/S | |
| CABI Papir & Datatilbehør | Capital Region of Denmark |
| CableWorld | Central Denmark Region |
| Cacidi Systems | Capital Region of Denmark |
| Call me | Capital Region of Denmark |
| Campus Vejle | Region of Southern Denmark |
| CanopyLAB A/S | |
| CapaSystems | |
| Capital Four Management Fondsmæglerselskab A/S | |
| Capital Market Partners A/S | |
| CapMon A/S | Capital Region of Denmark |
| Captator | Central Denmark Region |
| Captego ApS | |
| Capture IT A/S | Capital Region of Denmark |
| Capturi | |
| Cardlay A/S | Region of Southern Denmark |
| Carl C A/S | Central Denmark Region |
| Casalogic | Region Zealand |
| CathVision ApS | |
| CatMan Solution A/S | |
| cBrain | Capital Region of Denmark |
| CC:Networks | |
| CCPro | Capital Region of Denmark |
| Cell to Cure | |
| Censio | |
| Centre for Scientific Computing Aarhus | Central Denmark Region |
| Cercare Medical A/S | |
| CerCell A/S | |
| Cerebriu A/S | |
| CERTA Intelligence & Security | |
| Certainly | |
| CESCOM | North Jutland Region |
| Cessatech A/S | |
| ChangeGroup | Capital Region of Denmark |
| ChannelCRM | Capital Region of Denmark |
| ChemoMetec | |
| Chili Security Denmark ApS | |
| Chocolate Cloud ApS | |
| Chrisper Automatdrejning | |