| Beam GmbH | |
| BeamNG GmbH | |
| BeamYourScreen GmbH | Bavaria |
| Beans Software GmbH | |
| BEATRONIC Telekommunikation Industrievertretungen e.K. | Baden-Württemberg |
| Beatvest | |
| beBOLD GmbH | |
| Bebro Electronic GmbH | Baden-Württemberg |
| bec kommunal Software GmbH | Bavaria |
| Because Software AG | Bavaria |
| Bechmann GmbH | Bavaria |
| Bechtle AG | Baden-Württemberg |
| Bechtle-Comsoft GmbH | |
| BECK GmbH & Co. Elektronik Bauelemente KG | Bavaria |
| Beck IPC GmbH | Hesse |
| Beckdahl Bahn GmbH | North Rhine-Westphalia |
| Beckdesign GmbH | North Rhine-Westphalia |
| Becker EDV-Beratung GmbH & Co. KG | Saarland |
| Becker Software Support | Hesse |
| Beckmann & Partner Consult GmbH | Hesse |
| Beckmann Elektronik GmbH | Bavaria |
| becom Systemhaus GmbH & Co. KG | Hesse |
| become.1 GmbH | |
| Bedinetz GmbH | Brandenburg |
| Beducated GmbH | |
| Bee Smart City | |
| BEE.GmbH | North Rhine-Westphalia |
| BEEHIVE Coworking | |
| Beelinguapp | |
| Beepl GmbH | |
| Beepworld | North Rhine-Westphalia |
| Beer Telekommunikation e.K. | Saxony |
| Befort Wetzlar OD GmbH | Hesse |
| BEHA Innovation GmbH | |
| behind the scenes GmbH | |
| Behrendt Gruppe GmbH & Co. KG | |
| Behrens & Schuleit GmbH | North Rhine-Westphalia |
| BeKom Datensysteme GmbH & Co. KG | Hesse |
| BEL Net GmbH | |
| BELabat | Bremen |
| belboon GmbH | Berlin |
| Belegmeister GmbH | |
| Belin Hyp AG | |
| BellaSeno GmbH | |
| Belsignum | Bavaria |
| Belz & Rupp GbR | Saarland |
| Ben Schulz & Partner AG | |
| Benchkram | Baden-Württemberg |
| Bendalis GmbH | |
| BenData GmbH | |