| Name | Region |
|---|---|
| Qosmos | Paris |
| QR Gestion | Isère |
| Quad Logic S.A.R.L. | Paris |
| Quadra Informatique | Nord |
| Quadran | Haute-Garonne |
| Quadrille Capital | |
| Quadris | Hauts-de-Seine |
| Quaelys | Val-de-Marne |
| Quai13 | Bouches-du-Rhône |
| Qualia Systèmes | Paris |
| Qualidata | |
| Qualigest | Doubs |
| Qualims | Jura |
| Qualishare | Hérault |
| Qualisteo | |
| Qualité Informatique | Côtes-d'Armor |
| Qualitysource | Yvelines |
| Quandela | |
| Quantic Dream | |
| Quantohm | Paris |
| Quantonation | |
| Quantum Business Europe | |
| Quantum Genomics | |
| Quantum Jobs | |
| Quantum Surgical S.A.S. | |
| QuantX | |
| Quarante Six | |
| Quarkslab | Paris |
| Quarter-2 | |
| Quasar-Concept | Maine-et-Loire |
| Quasar-Solutions | Haute-Savoie |
| QuasarDB S.A.S. | |
| Quaternet | Gironde |
| Qubit Pharmaceuticals | Paris |
| Query Informatique | Hauts-de-Seine |
| QuesCom S.A.S. | Hauts-de-Seine |
| Questel | |
| Quick Source | |
| Quivo | |
| Quomodo | Val-de-Marne |
| Qwant | |
| Qwesta | |
| Qynapse | |
| R&C | Val-de-Marne |
| R-systèmes d'information | Hérault |
| R.Tech Engineering | Ariège |
| Radar Technologies | |
| Radès | |
| Radiall S.A. | Paris |
| Radio Diffusion System | Loire-Atlantique |