| Low Cost SEO Pty Ltd | |
| LRS Health Pty Ltd | Victoria |
| LSI | New South Wales |
| Lucid Web Design | Victoria |
| Luke Chaffey | |
| Lumi Australia | New South Wales |
| Lumi IT Group | |
| Lumient Pty Ltd | |
| Luminary | Victoria |
| Lumination | South Australia |
| LuminaX HealthTech Accelerator Program | Queensland |
| Luminous Software Solutions | |
| Lumo Energy | |
| Luna Startup Studio | Victoria |
| LuxSite | |
| Lyssna | Victoria |
| M & J Orth | South Australia |
| M E R Goulding Software Development | Tasmania |
| M.H. Carnegie & Co. Pty Ltd | New South Wales |
| M2M Connectivity Pty Ltd | Victoria |
| M2M One | Victoria |
| m2media | |
| M6.Net Pty Ltd | |
| M8 Ventures | |
| Mable Technologies Pty Ltd | New South Wales |
| Mac Aid | Victoria |
| Mac It Up | New South Wales |
| Mac Rent | New South Wales |
| Macfixit Australia Pty Ltd | Victoria |
| Mâché | South Australia |
| Machine Learning Mastery Pty Ltd | Victoria |
| Macquarie Automation Pty Ltd | New South Wales |
| Macquarie Data Centres | |
| Macquarie Group Ltd | |
| Macquarie Telecom Group | New South Wales |
| Macquarie University | New South Wales |
| Macquarie University - Centre for Language Technology | New South Wales |
| Macquarie University - School of Computing | New South Wales |
| Macquarie University - School of Mathematical and Physical Sciences | New South Wales |
| Macroware Systems Pty Ltd | New South Wales |
| Macs As New | New South Wales |
| MacZin Pty Ltd | Victoria |
| MAD Electronics Australia Pty Ltd | New South Wales |
| Mad Paws | |
| Made By Big Pty Ltd | |
| Made Neat | |
| Made Visual | Victoria |
| MadeByMike | |
| MadeComfy | New South Wales |
| MadeComfy | |