| Sam Partners A/S | |
| SameTime | |
| Samlino.dk | |
| Samplix ApS | |
| Sandberg A/S | Capital Region of Denmark |
| SANI Membranes A/S | |
| Saniona | |
| Satlab A/S | |
| Scaleup Finance | |
| SCALGO ApS | |
| Scan Antenna A/S | Capital Region of Denmark |
| Scancon A/S | Capital Region of Denmark |
| Scandesign Media | Capital Region of Denmark |
| Scandinavian Tele Consult A/S | Capital Region of Denmark |
| Scandion Oncology A/S | |
| ScanDis A/S | Central Denmark Region |
| Scanmarket A/S | |
| ScanSolutions ApS | |
| Scantox Holding ApS | |
| schlebaum.dk ApS | Region of Southern Denmark |
| Scouter | |
| Scriptable | |
| Scriptor Technology A/S | Capital Region of Denmark |
| SDG Tech Awards | |
| Seasony | |
| SEC Datacom A/S | Capital Region of Denmark |
| SecPoint | Capital Region of Denmark |
| Secure Privacy | |
| SecureDevice A/S | |
| SEED Capital | |
| Seedster | |
| Selektro A/S | Central Denmark Region |
| Semaphor | Capital Region of Denmark |
| Semark | Capital Region of Denmark |
| SEMO | Capital Region of Denmark |
| Sentia Danmark A/S | Capital Region of Denmark |
| Sentispec ApS | |
| SEO Denmark | |
| SEO-1 | |
| Sepior ApS | |
| Serious Games Interactive | Capital Region of Denmark |
| ServicePartner Danmark A/S | Capital Region of Denmark |
| Shape Robotics | |
| Shareit | Region of Southern Denmark |
| Shield Intelligence | |
| Shopbox | |
| Shouter | |
| Sif Gruppen A/S | Capital Region of Denmark |
| Signifly | |
| Silkeborg Data | |