| Name | Region |
|---|---|
| Bix Servizi Web Marketing S.r.l.s. | Rome |
| BizAway S.r.l. | Milan |
| bizConsulting S.r.l. | Cagliari |
| BL Sistemi | Rome |
| Black Box | Rome |
| Blendee S.r.l. | |
| BLIMP S.r.l. | |
| Blizzard S.r.l. | Bologna |
| BlockChainLab S.r.l. | |
| BlogMeter | Milan |
| Bloo S.r.l. | Pescara |
| Bloomtech | Vercelli |
| Bloop | Siena |
| Bluarancio S.p.A. | Rome |
| Blubrake S.p.A. | |
| Bludis S.r.l. | Rome |
| Bluelabs S.n.c. | Naples |
| BlueTensor S.r.l. | |
| BMG Pharma S.p.A. | |
| BMR Genomics S.r.l. | |
| BNova S.r.l. | Massa-Carrara |
| Bocconi for innovation | |
| Bocconi University | Milan |
| Bologna Ufficio.it | Bologna |
| Bonazzi S.r.l. | |
| Bonetto S.r.l. | Turin |
| Bontex | Milan |
| BonusX | |
| Boom Image Studio S.p.A. | |
| Boox S.r.l. | |
| Boraso.com S.r.l. | Milan |
| BorderZone | Pavia |
| Borea Therapeutics S.r.l. | |
| Borinato Security S.r.l. | Vicenza |
| Borri S.p.A. | Arezzo |
| BPG Radiocomunicazioni S.r.l. | Aosta Valley |
| Bracco | Milan |
| Brain Forming S.r.l. | Turin |
| Brainer S.r.l. | |
| BrandOn Group S.r.l. | |
| BreakPoint | Rome |
| Brembo S.p.A. | |
| Brevetti CEA S.p.A. | |
| Brevi S.p.A. | Bergamo |
| Bridge S.r.l. | |
| Broadsat S.r.l. | Pisa |
| Brondi S.p.A. | Rome |
| Brother Italia S.r.l. | Milan |
| Brots S.r.l. | |
| Bsnewline | Cuneo |