| Craq Design Studio S.r.l. | |
| Crazy Goat Studios S.p.A. | |
| CREA - Collaudi Elettronici Automatizzati S.r.l. | Turin |
| Crea Solution | Bologna |
| Crea Summer Academy | Milan |
| creATiva di Alessandra Talentino | |
| Creative Solutions Engineering | Treviso |
| Crédit Agricole Italia S.p.A. | |
| Creeo Studio S.r.l. | |
| CrescItalia Servizi Imprese S.r.l. | |
| CrestOptics S.p.A. | |
| Crimson Byte | Perugia |
| Crionet World | Naples |
| Cristiano Casazza Consulting | |
| CRMpartners S.r.l. | |
| CROMSOURCE | Verona |
| Cronosmedia S.a.s. | Padua |
| Crowd2Be | Milan |
| CrowdFundMe S.p.A. | |
| CRP Technology S.r.l. | Modena |
| Cryptonet Labs S.r.l. | |
| CSI Piermonte | Turin |
| CSIT S.p.A. | Rome |
| CSM Sistemi S.r.l. | Varese |
| CSR Computer System | Rimini |
| CTA Informatica S.r.l. | Como |
| CTAWeb S.l.r.s. | |
| CTE Matera | Matera |
| Cubbit S.r.l. | |
| Cube Comunicazione S.r.l. | Bari |
| Cube Labs | Rome |
| Cube S.r.l. | Genoa |
| Cubic Design | Lucca |
| cuola IMT Alti Studi Lucca | |
| Cuordimela S.r.l. | Milan |
| Custom Engineering S.p.A. | Parma |
| Customix S.r.l. | |
| CY4GATE S.p.A. | |
| Cyber Dyne S.r.l. | |
| Cyber Trade S.r.l. | Ravenna |
| Cyber Xcelerator | Rome |
| Cyberangels S.r.l. | |
| Cyberating S.r.l. | |
| Cyberg | Bergamo |
| CyberGuru | |
| CyberPlan | Friuli-Venezia Giulia |
| Cyberwave S.p.A. | |
| Cybion | Rome |
| CyLock S.r.l. | |
| Cynasky Web Multimedia | Rome |