| Sooft Technology | Córdoba |
| Soporte Informático ViaNet | Buenos Aires |
| Spinsoft | Buenos Aires |
| SQLMax Connections | Buenos Aires |
| Staff Codes | Buenos Aires |
| Start-Ups Argentina | Buenos Aires |
| Startup Buenos Aires | Buenos Aires |
| Storey S.A. | Buenos Aires |
| Structured Intelligence | Buenos Aires |
| Studio Raica Design | Buenos Aires |
| Stylus | Buenos Aires |
| Stym Computación | Buenos Aires |
| Su Web Express | Buenos Aires |
| Subituweb.com | Buenos Aires |
| Summa Solutions | Buenos Aires |
| Super Desino Web | Buenos Aires |
| Supersistemas | Buenos Aires |
| Support Informática | Santa Fe |
| SUR Emprendimientos Tecnológicos, S.R.L. | Buenos Aires |
| SurEstudio | Buenos Aires |
| Surhive Design | Santa Fe |
| SURI | Buenos Aires |
| Surinter | Mendoza |
| SYC Consulting, S.A. | Buenos Aires |
| Synagro | Buenos Aires |
| Syntagma | Buenos Aires |
| Sysgarage | Buenos Aires |
| Systemscorp | Buenos Aires |
| SZnet | Buenos Aires |
| Tab-Control | Buenos Aires |
| Tacco Calpini S.A. | Buenos Aires |
| Tacticasoft | Buenos Aires |
| Taggify | Buenos Aires |
| Tai | Buenos Aires |
| TalSoft | Buenos Aires |
| Tarsis | Buenos Aires |
| Tasso | Buenos Aires |
| TAURO Computación | Buenos Aires |
| Taux Argentina | Buenos Aires |
| Tec Solutions | Buenos Aires |
| Tech-Services | Buenos Aires |
| Technology Bureau S.A. | Buenos Aires |
| Technology for Solution | Buenos Aires |
| Techys | Buenos Aires |
| Tecni-Todo | Buenos Aires |
| Tecnicos de PC | Buenos Aires |
| Tecno Acción | Buenos Aires |
| Tecno Brain | Buenos Aires |
| TecnoAp S.A. | Buenos Aires |
| TecnoCom | Córdoba |