| MDR Services | Bas-Rhin |
| MDWeb | Nord |
| Meal Canteen | |
| Mecano ID | |
| Medaviz | |
| MédecinDirect | |
| Media Partners International | Yvelines |
| Média Provence | Bouches-du-Rhône |
| Media Robotic | Val-de-Marne |
| Média Technologies | Val-de-Marne |
| Media-neX | Saône-et-Loire |
| MediaAnnonces | Gard |
| MediaArea.net S.A.R.L. | |
| Mediacrea | Bouches-du-Rhône |
| Mediactive Network | |
| Medialogik informatique, | Hérault |
| Mediameeting | |
| Median Technologies, Inc. | |
| Mediapilote | Maine-et-Loire |
| Mediapole | Alpes-Maritimes |
| Mediaprodx.com | Vendée |
| Mediarithmics | |
| MédiaRom Solutions | Marne |
| MédiArt | Charente-Maritime |
| Médias Plus | Seine-Maritime |
| Mediawan | |
| Medicapp Connect S.A.S. | |
| Medicen | |
| MédiFirst | |
| MedinCell | |
| Medinfo IHS | |
| MediReport | Paris |
| MédiStory | Meurthe-et-Moselle |
| Medisys | Bouches-du-Rhône |
| MedPi | Paris |
| Medprice | Nord |
| Medsyn | Paris |
| Meero | |
| Meet Your People | |
| Meetic | |
| Meetrix | |
| MEG Digital | |
| Mega Biopharma | |
| MEGA International S.A. | Paris |
| MégaO Informatique | Drôme |
| Meilisearch | |
| MElkin Pharmaceuticals | |
| Memlog | Yvelines |
| Memobox | Paris |
| Memorizer | |