| Monthio ApS | |
| Mornings ApS | |
| Morningscore | |
| Mosek ApS | Capital Region of Denmark |
| Mosson ApS | |
| Mouseflow ApS | |
| Move Innovation | |
| MPSOFTWARE | Capital Region of Denmark |
| MR WebDesign | Region of Southern Denmark |
| MS-Team | Capital Region of Denmark |
| MSCi ApS | |
| MSFN.org | Capital Region of Denmark |
| MTNQ | Capital Region of Denmark |
| Muinmos | |
| Multi:IT A/S | |
| Multiscription ApS | |
| Muna Therapeutics | |
| Musimi.dk | Central Denmark Region |
| My Mobile Butik | Capital Region of Denmark |
| MyMonii | |
| Myphoner ApS | |
| MySupport.dk | Central Denmark Region |
| MyTrendyPhone | Capital Region of Denmark |
| Nabogo ApS | |
| Nabto | Central Denmark Region |
| Nanovi A/S | |
| Napatech A/S | Capital Region of Denmark |
| Napp | Capital Region of Denmark |
| Navtilus | North Jutland Region |
| Navus Consult | |
| NBE Production A/S | North Jutland Region |
| NCT A/S | North Jutland Region |
| ND Data | Capital Region of Denmark |
| NEM It-solutions A/S | Capital Region of Denmark |
| Nema | |
| Nemmobil | Capital Region of Denmark |
| NeoConsulting | |
| Nerve Smart Systems ApS | |
| Net Cats | |
| Netcompany | Capital Region of Denmark |
| Netcompany Group A/S | |
| NetDesign | Capital Region of Denmark |
| NetGraf ApS | Central Denmark Region |
| Nethart ApS | |
| Netic | |
| netIP | |
| Netkant | Region of Southern Denmark |
| NetNordic Denmark | |
| Netsite A/S | Capital Region of Denmark |
| NetSolutions ApS | Capital Region of Denmark |