| M&H DECOLLETAGE | F05 | | |
| M2O SWISS | H28 | ![]() | |
| MACLEF SÀRL | C02 | ![]() | |
| MADE IN'ART SA | H111 | ![]() | |
| MADENESS SOLUTIONS LAB | N12 | ![]() | |
| MAITRE FRERES SA | H17 | ![]() | |
| MAJOTIS | R01 | | |
| MANPOWER | K127 | ![]() | |
| MANUFACTURE JEAN ROUSSEAU | N95 | ![]() | |
| MANUFACTURE LA JOUX-PERRET SA | R34 | ![]() | |
| MARCEL AUBERT | K31 | ![]() | |
| MASNADA DIAMANT INDUSTRIE | L35 | ![]() | |
| MATTHEY DÉCOLLETAGES SA | E24 | ![]() | |
| MAXON | H106 | ![]() | |
| MCCH SARL | Q01 | ![]() | |
| MCE SWISS - MicroVu - Fox Metrology | P13 | ![]() | |
| MDTESTS SARL | K116 | ![]() | |
| MEC-TECH | S16 | ![]() | |
| MECALEX SA | F66 | ![]() | |
| MECANIC OUTILS | M36 | ![]() | |
