| Name | Region |
|---|---|
| Bouygues Telecom Entreprises | Paris |
| Box’n services | |
| BP 2i | Eure-et-Loir |
| BPCE-IT | |
| Bpifrance | |
| Bpifrance | |
| Bpifrance Création | |
| Brain Networks | |
| Braincities | |
| Braincities Lab | |
| BrainEver | |
| Brandquad | |
| Brasero | Loire-Atlantique |
| Brave Unicorns | |
| Breega | |
| Breek | Loiret |
| Breizh-Cloud | Côtes-d'Armor |
| Breizh-Entropy | Ille-et-Vilaine |
| Brenus Pharma | Métropole de Lyon |
| Brenus Pharma | |
| Brest Business School | |
| Bretagne Internet Réseaux | Ille-et-Vilaine |
| Brevo | |
| Bricks.ai | |
| Bricks.co | |
| Bridgen Tech S.A.S.U. | |
| Brigad | |
| Brighteye Ventures | Paris |
| BrightLoop Converters | |
| Brightness | |
| Brioude Internet | Paris |
| Broadpeak | Ille-et-Vilaine |
| Brocelia | Paris |
| Brochier Technologies | Métropole de Lyon |
| Brokland | Landes |
| Bronx | |
| Brother France S.A.S. | |
| Bruce | |
| Bruno CHATEL S.A.R.L. | Bouches-du-Rhône |
| BrushKing | Loiret |
| Brut | |
| Brut de Comm | Pyrénées-Orientales |
| BSA France | Seine-et-Marne |
| BSC Concept | Côtes-d'Armor |
| BSD | Essonne |
| BSE Electronic | Saône-et-Loire |
| bsoft.fr | |
| BSV | |
| BT Electronics | Essonne |
| btcom.net | Haut-Rhin |