| Aztec Informatica S.r.l. | Cosenza |
| AzzuroDigitale S.r.l. | |
| B Human S.r.l. | |
| B-Open Solutions S.r.l. | Rome |
| B-PlanNow | |
| B.B. System S.r.l. | Biella |
| B.com S.r.l. | Milan |
| B.F. Elettrotecnica | Pistoia |
| B.I.Tel. S.r.l. | Palermo |
| B2YOU S.r.l. | Milan |
| B810 S.r.l. | Milan |
| b@z S.r.l. | Ascoli Piceno |
| Baasbox | |
| Babaco Market S.p.A. | |
| Babylon Cloud | |
| Backward Group | Savona |
| Balance S.p.A. | |
| Balzo S.r.l. | |
| Bamboo Innovation Studio S.r.l. | |
| Banco di Desio e della Brianza S.p.A. | Monza and Brianza |
| BandoSubito S.r.l. | |
| BARR S.r.l. S.B. | |
| BASEL dei F.lli Bassi & C. S.a.s. | Viterbo |
| BasicSoft | Florence |
| Bcademy | |
| BCC Sistemi Informatici | Milan |
| BCode S.r.l. | |
| BCST S.r.l. | Monza and Brianza |
| BdSound S.r.l. | |
| Be Safe Group S.r.l. | Rome |
| Be. Shaping the Future S.p.A. | |
| beanTech S.r.l. | Friuli-Venezia Giulia |
| Beaver Lab S.r.l. | |
| BeBeez | |
| Bebit S.r.l. | |
| beCAD S.r.l. | |
| Becom S.r.l. | Brescia |
| BeDigital S.r.l. | |
| Beeapp | Pisa |
| Beecreative S.r.l. | |
| Beentouch S.r.l. | Catania |
| BeeSoft S.r.l. | Ascoli Piceno |
| Beintoo S.p.A. | Milan |
| Belka S.r.l. | |
| Bellani S.a.s. | La Spezia |
| Bemycompany S.r.l. | |
| Bending Spoons Operations S.p.A. | |
| Bending Spoons S.p.A. | |
| Bentel Security S.r.l. | Teramo |
| BeonD S.r.l. | |