| Taylora S.r.l. | |
| TD Group Italia S.r.l. | Pisa |
| TE.CO. S.r.l. | Bologna |
| TeachCorner S.r.l. | |
| Team Elite Group | |
| Team Memores Computer S.p.A. | Piacenza |
| TeamDev S.r.l. | Perugia |
| TeamSystem S.p.A. | Pesaro and Urbino |
| Teamwork S.a.s. | Verona |
| Tech2 S.r.l. | Genoa |
| TechChill Milano | |
| TechEnergy Ventures | |
| Techexperts S.r.l. | Turin |
| Techman | |
| TechMass | Milan |
| Technext | |
| Techno Center S.p.A. | |
| Technoconference S.r.l. | Florence |
| Technodrive S.r.l. | Milan |
| Technology Nuclear Electronics S.p.A. | Milan |
| Technosind S.r.l. | |
| Technosoft S.a.s. | Genoa |
| Technosoft S.r.l. | Florence |
| Techshop SGR S.p.A. | |
| TechStar S.r.l. | Friuli-Venezia Giulia |
| TechWald Holding S.p.A. | |
| TechXquare | |
| TechZilla | Rome |
| Tecninf | |
| Tecnisoft S.a.s. | Prato |
| Tecnobit | Vicenza |
| Tecnomec S.r.l. | Vicenza |
| Tecnopolo S.p.A. | |
| Tecnoprogress S.p.A. | Trento |
| Tecnorad Italia S.p.A. | Rome |
| Tecnoteca S.r.l. | Friuli-Venezia Giulia |
| Tecnotrade S.r.l. | Bologna |
| Tecnotrasmissioni due S.r.l. | Prato |
| Tecnoware S.r.l. | Florence |
| Teklab S.r.l. | Modena |
| TeknoTeam | Pesaro and Urbino |
| Tel.Net S.r.l. | Bari |
| Telbe Engineering S.r.l. | Monza and Brianza |
| Telea Electronic Engineering S.r.l. | Vicenza |
| Teleco S.p.A. | Milan |
| Telecom Italia Sparkle S.p.A. | Rome |
| Telecomunicazioni Radar S.r.l. | Verbano-Cusio-Ossola |
| Telefonia e Sicurezza S.p.A. | Como |
| Telefonisti | Livorno |
| Telegramma S.a.s. | Treviso |