| Bimex Elektronikbauteile GmbH | Hesse |
| BIMsystems GmbH | |
| Binaris informatik GmbH | |
| Binder & Geck EDV-Service GbR | Bavaria |
| Binder IT-Systemhaus GmbH | |
| Binect GmbH | Hesse |
| Biobedded Systems GmbH | North Rhine-Westphalia |
| Biobyte Solutions GmbH | |
| BioDataAnalysis GmbH | |
| BioEcho Life Sciences GmbH | |
| Biofidus AG | |
| BioGenes GmbH | |
| Biohost | Hesse |
| Bioinformatik.de | Berlin |
| Bioinformation Systems e.V. | Lower Saxony |
| Biolitec AG | Thuringia |
| BioM Biotech Cluster Development GmbH | |
| Biomax Informatics AG | Bavaria |
| BioNTech SE | |
| BioNTech SE | |
| Biontex Laboratories GmbH | |
| BioOFFICE | Berlin |
| BioRegio STERN Management GmbH | |
| BIOS Software GmbH | Berlin |
| Biosflash.com | Schleswig-Holstein |
| BioSolve IT GmbH | North Rhine-Westphalia |
| BIOSSC/Seqool | Baden-Württemberg |
| BIOSYS Scientific Devices GmbH | |
| BioSystem GmbH | Brandenburg |
| Biotechnologiepark Luckenwalde | Brandenburg |
| Biotest AG | |
| Biotronik SE & Co. KG | |
| Biotx.ai GmbH | |
| BioType GmbH | |
| BIOVOX GmbH | |
| bip technology GmbH | |
| BippesBrandão GmbH | Hesse |
| Bird Eats Bug | |
| birkle IT AG | |
| BISS GmbH | Lower Saxony |
| BISS Software GmbH | Berlin |
| Bissantz & Company GmbH | Bavaria |
| Bisure GmbH | North Rhine-Westphalia |
| bit baltic information technologies GmbH | Schleswig-Holstein |
| BIT Design für Barrierefreie Informationstechnik GmbH | Hamburg |
| bit GmbH | North Rhine-Westphalia |
| Bit Informatik GmbH | Rhineland-Palatinate |
| BIT Technology Solutions | |
| Bit-On GmbH | Hesse |
| BITA GmbH | |