| Richard Kovacs | |
| Rikvest Kft. | Budapest |
| Riport Applications Kft. | |
| RivalComp | Budapest |
| RoboRobo | |
| Robot-Service Kft. | |
| Rollout IT | |
| RotaChrom Technologies plc | |
| RowanHill Global | |
| RS3 Informatika Kft. | Hajdú-Bihar |
| RSD Group | |
| Ruander Oktatási Kft. | Budapest |
| Rudas & Karig Kft. | Budapest |
| S&T Consulting Hungary Kft. | Pest |
| SabeeApp | |
| SafeSoft Kft. | |
| Salarify | |
| SalesAutopilot Kft. | Budapest |
| Salto Innovation Kft. | |
| Sapientia Szerzetesi Hittudományi Főiskola | |
| Satrax Kft. | Hajdú-Bihar |
| SBP Systems Kft. | |
| SCI-Network Távközlési és Hálózatintegrációs Zrt. | Budapest |
| Screbo Innovation Kft. | |
| Scriptide Ltd | |
| Search-Lab Ltd | |
| SeeMe | |
| Semilab | |
| Semmelweis Egyetem | Budapest |
| Sense/Net, Inc. | Budapest |
| SEO Hungary | |
| SEON Technologies Ltd | Budapest |
| Seqomics Ltd | |
| SERCO | Budapest |
| Serware Info Kft. | Budapest |
| SessionBox | |
| Seven Digits Media, Inc. | |
| Shapr3D Zrt. | |
| Shiwaforce | |
| Shop-Script | Budapest |
| Shopguard Kft. | Budapest |
| Sigmanet Kft. | Budapest |
| Silhouette Consulting Kft. | |
| Silicium | Budapest |
| Silihost Kft. | Komárom-Esztergom |
| Simplesoft Kft. | |
| Sinus-Networks Kft. | |
| Sixide Kft. | |
| SKVAD | |
| SkyLine-Computer. Kft. | |