| Brandatize | |
| BrandCrowd | |
| Brandengine | |
| Brandicoot | |
| Brandon Biocatalyst | |
| Brandon Capital Partners | Victoria |
| Brandrally | Queensland |
| Brandzilla | |
| Brave Folk | |
| BRAVE Web Marketing & Design Agency | Victoria |
| Bravo Zulu | |
| Bravo! | Victoria |
| Bravura Solutions Ltd | New South Wales |
| Breadbox Marketing | |
| Breadcrumb Digital | |
| Brennan IT | New South Wales |
| BRG Digital | |
| Briabane SEO | Queensland |
| Bricks+Agent | Victoria |
| BrickX Financial Services Ltd | |
| Bridge Business Consulting Pty Ltd | New South Wales |
| Bridge Hub | New South Wales |
| BridgeLane Group | New South Wales |
| Bridgemate | New South Wales |
| Bridj Technology Pty Ltd | |
| Bright Digital Services | |
| Bright Software | New South Wales |
| Brighte Capital Pty Ltd | New South Wales |
| Brightlabs | Victoria |
| BrisDigital | |
| 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 |
| Broadweb Digital | |
| BrokerEngine | |
| bronID | New South Wales |
| Brother International (Australia) Pty Ltd | New South Wales |
| Bruntech IT Services | New South Wales |
| BS3 | |
| BSD Robotics | |
| BSharp Tech | |
| BSO Digital | Victoria |
| BSP Corporate | |
| BubbleFish | New South Wales |
| Bubblegum Productions Pty Ltd | Victoria |
| Bud Agency | Western Australia |
| Buddy Platform Ltd | South Australia |
| Budget Web Design | South Australia |