| Linktree | Victoria |
| LINQPad Pty Ltd | Western Australia |
| Linux Australia | New South Wales |
| Linux Users of Victoria | Victoria |
| Linux Webhost | New South Wales |
| LinuxNow | |
| Liquid Agency Pty Ltd | Victoria |
| Liquid State | |
| Liquid Vision | New South Wales |
| Little City Coworking | South Australia |
| Littlepay | Victoria |
| Liveable Insights Pty Ltd | New South Wales |
| LiveHire | Victoria |
| Lizzy Internet | Victoria |
| Loc8 | Victoria |
| Local Measure | New South Wales |
| Local SEO Perth | Western Australia |
| Localnode Solutions | New South Wales |
| Logic Squad | South Australia |
| LogicalTech Group | Victoria |
| LogoGarden.com Pty Ltd | Queensland |
| Logomotion Web | Queensland |
| LogoPeople Australia | New South Wales |
| Long Distance Technologies | South Australia |
| Longpela Expertise | Western Australia |
| Lookahead | New South Wales |
| Loop Secure | Victoria |
| Loop11 | Victoria |
| LRS Health Pty Ltd | Victoria |
| LSI | New South Wales |
| Lucid Web Design | Victoria |
| Luke Chaffey | |
| Lumi Australia | New South Wales |
| Luminary | Victoria |
| Lumination | South Australia |
| LuminaX HealthTech Accelerator Program | Queensland |
| Luna Startup Studio | Victoria |
| 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 |
| M6.Net Pty Ltd | |
| 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 |