| Raremedia | Victoria |
| Raster Graphix | Victoria |
| Raw Gigabit Technologies | |
| Raw Ideas Pty Ltd | New South Wales |
| Raw Media | New South Wales |
| Raw.Studio | New South Wales |
| RayGen Resources Pty Ltd | |
| RCS Telecommunications Pty Ltd | Queensland |
| RDA Creative | New South Wales |
| RDT IT Services | |
| Re-Source Hardware | Victoria |
| REA Group Ltd | South Australia |
| Reach Recruitment | Victoria |
| Reach Robotics | New South Wales |
| ReadCloud Ltd | Victoria |
| Real Time Designs Pty Ltd | New South Wales |
| Real World Technology Solutions | New South Wales |
| Realestate.com.au | |
| Realised Technologies | |
| Realtime Computing | Western Australia |
| Reason8 Pty Ltd | New South Wales |
| REassist, Inc. | Queensland |
| Reboot IT | Victoria |
| Rebotify | Victoria |
| Recce Pharmaceuticals | |
| Reckon Ltd | New South Wales |
| Recompute | New South Wales |
| Recovery VR Pty Ltd | Australian Capital Territory |
| Red Bilby | Victoria |
| Red Book | Tasmania |
| Red Cartel | New South Wales |
| Red Fox Media | New South Wales |
| Red Hill Technology | Victoria |
| Red Meets Blue | Western Australia |
| Red Ochre Pty Ltd | Western Australia |
| Red Piranha Ltd | |
| Red Rain Corporation Pty Ltd | New South Wales |
| Red Rock Software | |
| Red Search | New South Wales |
| Redactive | |
| Redalto | Queensland |
| Redant | New South Wales |
| Redback Digital Pty Ltd | |
| Redback Solutions | New South Wales |
| Redback Studios Australia | |
| Redback Web Solutions | |
| Redbax | South Australia |
| REDD | New South Wales |
| Redfox Corporation Pty Ltd | Queensland |
| Redfox Media Pty Ltd | |