| WriteReader ApS | |
| X-Cite | North Jutland Region |
| X-Formation | Central Denmark Region |
| Xellia Pharmaceuticals ApS | |
| xIT Software ApS | |
| Xnovo Technology ApS | |
| XP Digital A/S | Capital Region of Denmark |
| Yodot.dk | Central Denmark Region |
| Your.Rentals A/S | |
| YouSee A/S | Capital Region of Denmark |
| ZBC | |
| Zealand - Sjællands Erhvervsakademi | |
| Zealand Pharma | |
| Zen Media ApS | |
| Zenit Consult | Capital Region of Denmark |
| Zenitel Etronic ApS | Region of Southern Denmark |
| Zensai | |
| Zerion | |
| ZeroNorth A/S | |
| ZieglerSoft | North Jutland Region |
| Zigna ApS | |
| Zitech IT Service Normalex ApS | Capital Region of Denmark |
| ZoomTek.dk | Central Denmark Region |
| ZTLment | Capital Region of Denmark |
| Zyberchief.com | |
| Zymoscope | Capital Region of Denmark |
| Zynewave | Central Denmark Region |
| Zyneyro ApS | |
| Økisnavn | Faroe Islands |
| Øresund Startups | |
| Ørsted A/S | |