| Name | Region |
|---|---|
| Qair | |
| Qalyptus | |
| QantEv | |
| QAPA | |
| Qard | |
| Qare | |
| Qarnot Computing | |
| Qart | |
| QC Ware | Paris |
| Qlip | |
| Qobra | |
| Qobuz | |
| Qonto | |
| Qoodos | |
| QOS Telecom | Essonne |
| Qosmos | Paris |
| Qoveo | |
| 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 | |
| Quantmetry | |
| 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 |