| Protera | |
| Prothia | |
| ProTubeVR | |
| Provectio | |
| Provence Business Angels | Bouches-du-Rhône |
| Provence Linux Users Group | Bouches-du-Rhône |
| Provence PC | Var |
| Provence Télécom | Vaucluse |
| Provepharm Life Solutions | |
| Provitec | |
| ProwebCE | Hauts-de-Seine |
| Proxadis | Isère |
| Proxiad | Paris |
| Proxiel | Hérault |
| Proximacreativ.fr | Gironde |
| Proxsys | Haut-Rhin |
| Proxymis Multimédia | Nord |
| Prysm Software | Bouches-du-Rhône |
| Prysme | Gironde |
| PSI 2000 | Hauts-de-Seine |
| Publicis LMA | |
| Publidata | |
| Publiepress | Paris |
| Publish-IT | Loiret |
| Pubstack | |
| Puces Technologies Semiconducteurs | |
| Puissance 3 | Essonne |
| Pulsalys | Métropole de Lyon |
| Pulse Group | Paris |
| PulseLife | |
| Pulsesanté | |
| Pumpup | Paris |
| Purchasely | |
| Pure Agency | Paris |
| Purse | |
| Push IT Up | Paris |
| PV Logiciels | Maine-et-Loire |
| Pydio | |
| Pygram | Loire-Atlantique |
| PYMAC | Bouches-du-Rhône |
| Pyrat.net | Dordogne |
| Pyréweb | Hautes-Pyrénées |
| Pyron.fr | Métropole de Lyon |
| Pythagore F.D. Paris | Paris |
| Pytheas | Bouches-du-Rhône |
| Pythie | Hauts-de-Seine |
| Pyx4 | |
| Pyxo S.A.S. | |
| Q3 Advocacy | |
| Qaelon Medical | |