| Teletronics | Western Australia |
| Telexar Technologies | New South Wales |
| Telford Internet | New South Wales |
| Telix Pharmaceuticals Ltd | |
| Tell Media | |
| Telligence Pty Ltd | New South Wales |
| Telrex | Queensland |
| Telstra Corporation Ltd | Victoria |
| Telstra Ventures | New South Wales |
| TelTech | Victoria |
| Temando | Queensland |
| Temerity Digital | |
| Templeman Twells | Western Australia |
| Temtrol Technologies Pty Ltd | Tasmania |
| Ten Four | Queensland |
| Tenacious Ventures Management Pty Ltd | Victoria |
| Teqar | |
| TeQwise | Queensland |
| Terrasoft Web Design | New South Wales |
| Territory Technology Solutions | |
| Tessara Therapeutics Pty Ltd | |
| Tesserent Group | |
| Testmate | |
| Testpoint Group | |
| TGI Technologies | |
| TGP Telecom Ltd | New South Wales |
| TGR BioSciences Pty Ltd | |
| TGRMN Software | South Australia |
| ThanksAd Pty Ltd | |
| The Access Group | New South Wales |
| The App Team | Queensland |
| The App Workshop | |
| The Australian Software Company | New South Wales |
| The Branding Lab | |
| The Broadband Doctor | Western Australia |
| The Cartridge Warehouse | |
| The CEO Magazine | |
| The Code Company Pty Ltd | |
| The Commons | Victoria |
| The Computer Mechanic | South Australia |
| The Creative Collective | Queensland |
| The Creative Noise | |
| The Cut | Western Australia |
| The Defectors | |
| The Development Agency | |
| The Digital Brew | |
| The Digital Embassy | South Australia |
| The Digital Embassy | |
| The Digital Marketing Agency Pty Ltd | New South Wales |
| The Distillery | |