| 123hjemmeside | Capital Region of Denmark |
| 1508 | Capital Region of Denmark |
| 1shot Media | Capital Region of Denmark |
| 1st Domain / Web Solutions A/S | Region of Southern Denmark |
| 20 Thousand Leagues | |
| 2021.AI | Capital Region of Denmark |
| 21st.BIO | |
| 29x | |
| 2A Pharma ApS | |
| 2cureX A/S | |
| 2do IT | |
| 2ndEffect Webbureau | Capital Region of Denmark |
| 2webdesign | Capital Region of Denmark |
| 3D Plant Design | Region of Southern Denmark |
| 3D Realms Entertainment ApS | |
| 3Tech Automation A/S | Region of Southern Denmark |
| 4D Konsulenterne A/S | Capital Region of Denmark |
| 4K-DATA | Central Denmark Region |
| 7N | |
| A Overgaard WebDesign | Region of Southern Denmark |
| A-one Solutions | Capital Region of Denmark |
| A.H. Computing | Region of Southern Denmark |
| A.P. Møller Capital P/S | |
| Aalborg Handelsskole | |
| Aalborg Universitet | |
| Aalborg Universitet - Department of Computer Science | North Jutland Region |
| Aalborg Universitet - Institut for Matematiske Fag | North Jutland Region |
| Aarhus Business College | |
| Aarhus GeoSoftware | |
| AARHUS TECH | |
| Aarhus Universitet | Central Denmark Region |
| Aarhus Universitet - Bioinformatics Research Centre | Central Denmark Region |
| Aarhus Universitet - Department of Computer Science | Central Denmark Region |
| Aarhus Universitet - Institut for Matematiske Fag | Central Denmark Region |
| AB IT Solutions | |
| Abilitor Usability Management and Research | Capital Region of Denmark |
| Abzu | Capital Region of Denmark |
| Accelerace | |
| Accelerace Management A/S | Capital Region of Denmark |
| Accobat A/S | Capital Region of Denmark |
| AccuRanker | |
| Accuratech | |
| ACERcon A/S | |
| Acesion Pharma ApS | |
| ACTEC A/S | Central Denmark Region |
| Actimo | |
| Adapt Agency | |
| AdaptVac | |
| Adcendo ApS | |
| Add-on | Region of Southern Denmark |