| Name | Region |
|---|---|
| BioCydex | |
| Biodol Therapeutics | |
| Bioeconomy for Change | |
| BioFilm Control | |
| Bioinformatique en Lorraine | Moselle |
| Biomemory | |
| bioMerieux | |
| Biomillenia S.A.S. | |
| Biomodex | |
| Biomunex | |
| Bionatics | Hérault |
| Biophytis | |
| Biopôle Clermont-Limagne | |
| Biopredic International | |
| Bioprojet | |
| BIOS Informatique | Alpes-de-Haute-Provence |
| Biotech Santé Bretagne | |
| Biotopia | |
| Biotrial | |
| BioValley France | |
| Biowest | |
| Biowest S.A.S. | |
| BioXtal S.A.R.L. | |
| BiPER Therapeutics | |
| Bipp Consulting | Métropole de Lyon |
| Biron Data | |
| Bisatel opérateur télécom | Gironde |
| Bisis | Seine-et-Marne |
| Biskot S.A.R.L. | Paris |
| Bitcoin ABC | |
| Bitstack S.A.S. | |
| bizKor | |
| Bizlink | Métropole de Lyon |
| Bizon | |
| BK Systèmes | Isère |
| BlaBlaCar | Paris |
| Black Box | |
| Black Tiger | |
| BlackFin Tech | |
| Blackfire.io | |
| Blacksmith S.A.S. | |
| Blank | |
| Bleckwen | |
| Bleexo | |
| Blend Web Mix | Métropole de Lyon |
| Bleu Digital | Eure-et-Loir |
| Bleupiment | Métropole de Lyon |
| BliNK Biomedical S.A.S. | |
| Blisce | |
| BLIWE | Paris |