| Name | Region |
|---|---|
| Santiane | |
| Saphelec | Alpes-Maritimes |
| Saphir Consult | Paris |
| Saqara | |
| Sarbacane Software | Nord |
| Sariel | Paris |
| Sarus Technologies | |
| Satavenue | Val-d'Oise |
| Satel | |
| Satelia | |
| SATT Conectus | |
| Satt Lutech | |
| SATT PACA Corse S.A.S. | |
| SATT Paris-Saclay | |
| SauveGarde.fr | Val-de-Marne |
| Save Group | |
| Savsoft | Hauts-de-Seine |
| SAXRUB Informatique | Haute-Vienne |
| SAY Digital | |
| Saycurit | |
| Sayse | |
| SB Technologies | Paris |
| sb-Peptide | |
| SB2I | Rhône |
| SBE Banque Populaire | |
| SBE S.A.S. | Paris |
| SBII | Loire-Atlantique |
| SBInformatique | Hautes-Alpes |
| SC Informatique | Haute-Savoie |
| Scalair | |
| Scaleflex | |
| Scaleflex | |
| Scaleway | Paris |
| Scalian | Haute-Garonne |
| Scalingo S.A.S. | |
| Scalinx | |
| Scandrone | |
| SCEL | Essonne |
| Scénario Informatique Conseil | Paris |
| Scénario Interactif | Haute-Garonne |
| Schaeffer Productique | Haut-Rhin |
| Schneider Electric | |
| SchoolMouv | |
| SCIAM | |
| Scidot | Paris |
| Science & Vie | |
| Sciences Po | |
| Sciences Po Lille | |
| Sciforma | Paris |
| Scilab | Val-de-Marne |