| Azedo IT Consulting & Services KG | Styria |
| B&M TRICON GmbH | Vienna |
| B.A.M Ticketing | |
| b83.at | Upper Austria |
| Bacher Systems EDV GmbH | Vienna |
| Bachmann Electronic GmbH | Vorarlberg |
| banet GmbH | |
| Baningo GmbH | |
| Barcamp Graz | Styria |
| Barcotec GmbH | Salzburg |
| Bartelme Design | |
| base 2 info | Lower Austria |
| bat-groupware GmbH | Vienna |
| Bausparkasse der österreichischen Sparkassen Aktiengesellschaft | |
| BDF-net | Vienna |
| Beaconcha.in | Vienna |
| BEHYPE | |
| BeKa-Software GmbH | |
| Belichberg GmbH | |
| Beratung für IT, Zeiterfassung & BDE | Salzburg |
| berghWerk New Media | Vienna |
| Bergmann engineering & consulting GmbH | Vienna |
| Bernecker + Rainer Industrie Elektronik Ges.m.b.H. | Upper Austria |
| bespark bio GmbH | |
| BestSolution.at | Tyrol |
| BetterTogether | |
| BHS Datensysteme GmbH | Salzburg |
| Big Cheese Ventures GmbH | |
| Bimspot | Vienna |
| Biocrates Life Sciences AG | |
| Biomay AG | |
| Biome Diagnostics | |
| BioMedConsult – Ing. Wolfgang Hauffe | |
| Biometrix | Vienna |
| BIT Pharma GmbH | |
| Bit-Studio GmbH | |
| Bitlab Technology GmbH | |
| Bitpanda GmbH | |
| bitperfect GmbH | |
| bitSTUDIOS KG | |
| BitXtreme | Vienna |
| biz4you Kircher & Klehr OG | Vienna |
| BizXpand | |
| BJB-media Webdesign | Styria |
| Blackmirror Media | |
| Blackshark.ai GmbH | |
| Blockpit AG | |
| Blockserv Blockchain Services e.U. | |
| Blockshake GmbH | |
| Blue Banana Software | Styria |