| Mondial Maths | Alpes-Maritimes |
| Mondial Santé | Ille-et-Vilaine |
| Monetys | |
| Monext | Bouches-du-Rhône |
| MonExTel | Val-de-Marne |
| Money Walkie | |
| Moneycore | |
| Moneycore Smart | |
| Monk AI | |
| MonOrdo | |
| Monsieur Motclé | Côte-d'Or |
| Monsieur-site.com | Nord |
| Montpellier Bureautique | Hérault |
| Montpellier Business School | |
| Monvendeur.com | Métropole de Lyon |
| MOOCit S.A.S. | |
| Moodwork | |
| Mooncard | Paris |
| Moonda | Gironde |
| MoOngy | |
| mooood | |
| Mootools Software | Dordogne |
| Moove Lab | |
| Morpho Association | |
| Mosaique Informatique | Meurthe-et-Moselle |
| Mosscade | Seine-et-Marne |
| Motion Twin | Gironde |
| Motion4ever | Loire-Atlantique |
| Motto | |
| Move Solutions S.A.S. | Métropole de Lyon |
| Moventes | Loire-Atlantique |
| Mozaik Coworking | |
| Mozoo | |
| MP Systèmes | Haute-Garonne |
| MPI Tech S.A.S. | |
| Mr Suricate | |
| Mrb Automatismes | Seine-Saint-Denis |
| MS Informatique | Aisne |
| MSAI | Ille-et-Vilaine |
| MSI | Nord |
| MSI 2000 | Seine-Maritime |
| MSInsight | |
| MSSEC | |
| MT Développement | Vaucluse |
| MTAE | Paris |
| MTI | Vienne |
| Multi | |
| Multimages | Loiret |
| Multimed Solutions S.A.R.L. | Haute-Garonne |
| Multimédia SOLUTIONS | Gironde |