| Tecnología y Desarrollo Informático | Buenos Aires |
| Tecnologiait | Buenos Aires |
| Tecnom | Buenos Aires |
| Tecnotrade International, S.R.L. | Buenos Aires |
| tecso Work Cooperative | Buenos Aires |
| Teira Consulting | Buenos Aires |
| Telefax Internet Balacarce | Buenos Aires |
| Telefonía Pública y Privada S.A. | Buenos Aires |
| Telematica | Buenos Aires |
| Telesonic S.R.L. | Buenos Aires |
| Telinfor S.A. | Buenos Aires |
| Telnet | Buenos Aires |
| Terzian Seguros | Buenos Aires |
| Tesacom | Buenos Aires |
| Tesis-OyS | Buenos Aires |
| Tesys | Buenos Aires |
| TGV | Buenos Aires |
| The App Master | Buenos Aires |
| The eagle group | Buenos Aires |
| The Fresh Agency | Buenos Aires |
| The Idea Workshop | Buenos Aires |
| THH Technology | Buenos Aires |
| Thinksoft Argentina, S.A. | Buenos Aires |
| Tienda Nube | Buenos Aires |
| Tips Salud | Córdoba |
| Tiza y Pc | Buenos Aires |
| Todo10 | Santa Fe |
| Tokioba | Buenos Aires |
| Tormenta | Buenos Aires |
| TornadoStore | Buenos Aires |
| Tower | Santa Fe |
| Trade IT | Buenos Aires |
| Tranders | Buenos Aires |
| Transalud | Buenos Aires |
| Transdatos S.A. | Santa Fe |
| TRCnet Internet | Santa Fe |
| Tree | Buenos Aires |
| Tres Focos | Córdoba |
| Tres ideas | Santa Fe |
| Trial Virtual Design | Buenos Aires |
| Tribytes | Buenos Aires |
| Trilogic | Rio Negro |
| Trimix | Córdoba |
| Triple W | Buenos Aires |
| Triptongo | Santa Fe |
| Troop | Buenos Aires |
| Truelogic Software | Buenos Aires |
| Truly Remote | |
| TSWHost | Buenos Aires |
| Tuba Tech | Buenos Aires |