| Italian Tech Alliance | Milan |
| Italian Tech Week | Turin |
| Italian Wide Web | Brescia |
| Italiana Robot S.r.l. | Bergamo |
| ItalianServerss | Chieti |
| Italmec Elettronica S.r.l. | Bologna |
| Italpro | Friuli-Venezia Giulia |
| Italsoftware | Monza and Brianza |
| Italtel S.p.A. | Milan |
| Italy Innovazioni S.p.A. | |
| ITB S.r.l. | |
| ITC S.r.l. | Ravenna |
| iTechFinance S.r.l. | |
| Ites Com S.r.l. | Varese |
| Itesys S.r.l. | Catania |
| ITLAB S.r.l. | Campobasso |
| ITM Telematica S.r.l. | Sassari |
| Itnet S.r.l. | Milan |
| itOpen | Turin |
| ITP S.r.l. | Belluno |
| ITSREAL | Milan |
| ItsyAndy Net | Verona |
| ITTC S.a.s. | Reggio Emilia |
| Ittinsect S.r.l. | |
| Itway S.p.A. | |
| Iubenda S.r.l. | |
| IusOnDemand S.r.l. | Milan |
| IUV S.r.l. | |
| iVis Technologies | |
| IVM S.r.l. | |
| IVTech S.r.l. | |
| J2K Premium | Verona |
| Java User Group Sardegna Onlus | Cagliari |
| JAW Software | Rome |
| Jcom Italia S.r.l. | Bari |
| JDK S.r.l. | Rome |
| Jepssen Store | Catania |
| Jet HR S.r.l. | |
| Jetware | Rome |
| Jobby S.r.l. | |
| Jobtech S.r.l. | |
| JockerSoft | Bergamo |
| John Cabot University | Rome |
| Joobz.it | South Tyrol |
| Joomla.it | Rome |
| JOOMLART | Pisa |
| Joomlaskin | Rome |
| JTech S.r.l. | Genoa |
| Julius Design | Turin |
| Jump Group | Forlì-Cesena |