| Midi Loisirs | Aude |
| Midisoft | Hérault |
| Miel | Essonne |
| Mieuxplacer.com | |
| MIGS | |
| MIKII S.A.R.L. | Loiret |
| Milco | Eure |
| Milega | Côtes-d'Armor |
| Milklub | Paris |
| Milla Group | |
| Millenium Production 3 | Savoie |
| MilliDrop | |
| Million Victories S.A.S. | |
| Milliweb | Paris |
| Mimbi | |
| Mimbus | |
| Minakem | |
| Mindee | |
| Mindflow | |
| MINDFRA | Val-de-Marne |
| MINES ParisTech | Paris |
| Mines ParisTech - Centre for Mathematical Morphology | Paris |
| Mines Saint-Étienne | Loire |
| Mingalar | Oise |
| Minka Therapeutics | |
| Mint Énergie | |
| MIPCOM | Alpes-Maritimes |
| Mipih | |
| Mipise | |
| Mirabellug | Meurthe-et-Moselle |
| Mirai Tech | |
| Mirakl S.A.S. | Paris |
| Mirane | Gironde |
| Miratech | Paris |
| Miratlas S.A.S. | |
| MIRIAD Informatique | Isère |
| Mismo | Loire-Atlantique |
| Mission RGPD | |
| Mister Booking | |
| Mister Cartouche | Nord |
| Mister Harry | Saône-et-Loire |
| misternet.net | Hauts-de-Seine |
| Mistigris Communication | Paris |
| Mistra formation | |
| Mistral AI | |
| Mistral Media | Paris |
| Mistral.com | Haut-Rhin |
| Mitem Pharma | |
| Mitologics | |
| Miu2 Creative Solution | |