| Mobileman GmbH | Zurich |
| Mobilemonday | |
| Mobilunity | |
| Modern Times New Media | Thurgau |
| Modex GmbH | Zurich |
| Modis | Zurich |
| Modus Swisse | |
| MojoApps.co | |
| Molecular Partners | |
| Molecule AG | |
| Momenta Ventures AG | Obwalden |
| Mondi Agency | |
| Monetha | |
| Monito | Vaud |
| Monzoon Networks AG | Zurich |
| Moonchain Capital S.A. | |
| MoonLake Immunotherapeutics | |
| MOR Informatik AG | Zurich |
| Morgen AG | |
| Morgen AG | |
| Mosaic SoC | |
| Mount10 AG | Zug |
| Mountain Partners | |
| Mozzo | |
| MPC Therapeutics S.A. | |
| MPD Datenrettung | Zurich |
| Mpol Solutions GmbH | Zurich |
| MR Computer GmbH | Zurich |
| Mr. Internet | Aargau |
| ms-soft GmbH | Zurich |
| MSG Global Solutions AG | Zurich |
| Mt Pelerin Group Ltd | |
| MTF Micomp (Schwiez) AG | Grisons |
| MTF Solutions AG | |
| MTIP AG | |
| MTProd | Geneva |
| Mühlemann IT-Personal AG | Bern |
| Muinar Webdesign Schweiz | Ticino |
| Multi Digital | |
| Multiplanet GmbH | Aargau |
| Multiwave Technologies AG | |
| Musée Bolo | Vaud |
| Museum für Kommunikation | Bern |
| MUVON Therapeutics AG | |
| MV BioTherapeutics S.A. | |
| MycoSolutions AG | |
| myDrive | St. Gallen |
| MyMetics | |
| MyMonday GmbH | |
| Mympact AG | |