| Name | Region |
|---|---|
| Radiotel | Allier |
| Rainbow | Haut-Rhin |
| Rakam | |
| Rakoona | |
| RAM France | Seine-et-Marne |
| Ramify | |
| Randco | Paris |
| Randstad S.A.S. | |
| Ranking Metrics | Seine-et-Marne |
| Ranks.fr | Isère |
| RapidoBackup | Hauts-de-Seine |
| Rapidomaine | |
| RAS | Hauts-de-Seine |
| RATP Connect | Seine-Saint-Denis |
| RATP Smart Systems | |
| Ravel Technologies | |
| Rayon | |
| Rayonnance | |
| Razorfish | |
| RC2C | Charente-Maritime |
| Rc2i | Oise |
| RCB Informatique S.A.S. | Yvelines |
| RCS Informatique | Bouches-du-Rhône |
| RD médias | Bouches-du-Rhône |
| RD Soft | Var |
| RD-Biotech | |
| RDS S.A. | Hauts-de-Seine |
| RDS S.A.S. | |
| RDSC-online | Paris |
| Reactis | Bouches-du-Rhône |
| Ready for IT | |
| Réalisium | Paris |
| Realytics | |
| Recif Technologies | Haute-Garonne |
| Recif Technologies | Haute-Garonne |
| ReciTAL | |
| Recoveo | Paris |
| Recreasoft | Paris |
| RED by SFR | Paris |
| Red Manta | Haute-Garonne |
| Reden Solar | |
| Rediam | |
| Redirection.io | |
| Redline | |
| Redstart | |
| Reecall | |
| REEV S.A.S. | |
| Référencement du Pro | Isère |
| Référencement Page 1 | Bas-Rhin |
| Referenceur.com | Gironde |