| Boileau | South Australia |
| Bold Digital | South Australia |
| Boltblue Web and Marketing | Western Australia |
| Bond University | Queensland |
| Bonfire Digital Pty Ltd | |
| Bonjoro | New South Wales |
| Bonsai Media | Queensland |
| Bonza Mobile Computer Repairs | Queensland |
| Bookeo Pty Ltd | New South Wales |
| BoostIT Computer Services Pty Ltd | Queensland |
| Boss Communications & Networks | Victoria |
| Boston Software Pty Ltd | Victoria |
| Botanix Pharmaceuticals | Western Australia |
| Bouncing Orange | Western Australia |
| Brad Hauck | Queensland |
| Braemac Pty Ltd | New South Wales |
| Brain Stream Australia Pty Ltd | New South Wales |
| Brainfish Pty Ltd | New South Wales |
| Braintree Communications Pty Ltd | Queensland |
| Bramp Pty Ltd | New South Wales |
| BrandCrowd | |
| Brandicoot | |
| Brandon Biocatalyst | |
| Brandon Capital Partners | Victoria |
| Brandrally | Queensland |
| BRAVE Web Marketing & Design Agency | Victoria |
| Bravo! | Victoria |
| Bravura Solutions Ltd | New South Wales |
| Brennan IT | New South Wales |
| Briabane SEO | Queensland |
| Bricks+Agent | Victoria |
| Bridge Business Consulting Pty Ltd | New South Wales |
| Bridge Hub | New South Wales |
| BridgeLane Group | New South Wales |
| Bridgemate | New South Wales |
| Bright Software | New South Wales |
| Brighte Capital Pty Ltd | New South Wales |
| Brightlabs | Victoria |
| Broad Avenue Industries Pty Ltd | New South Wales |
| BroadbandExpert | New South Wales |
| Broadgun Software | Victoria |
| Broadreach Consulting | Western Australia |
| Broadway Infotech Pty Ltd | New South Wales |
| bronID | New South Wales |
| Brother International (Australia) Pty Ltd | New South Wales |
| Bruntech IT Services | New South Wales |
| BS3 | |
| BSO Digital | Victoria |
| BubbleFish | New South Wales |
| Bubblegum Productions Pty Ltd | Victoria |