| TechnologyOne Ltd | Queensland |
| TechnoSource Australia | Victoria |
| TechPath Pty Ltd | Queensland |
| Techrific Australia | Victoria |
| TechSols | Queensland |
| TECHSPO Sydney | |
| TechTiger | Western Australia |
| Techwell | Queensland |
| Tectite.com | Victoria |
| TEKCAT Australia | Victoria |
| Teko Corporation Pty Ltd | New South Wales |
| Teksmobile | New South Wales |
| Tekspace Pty Ltd | Victoria |
| TekSupport Pty Ltd | Victoria |
| Tekwizard Technology | New South Wales |
| Tekwizard Web Hosting | New South Wales |
| Telecommunications Industry Ombudsman | Victoria |
| TelephonesOnline Pty Ltd | Victoria |
| Teleresources Engineering Pty Ltd | New South Wales |
| Teletech Pty Ltd | Victoria |
| Teletronics | Western Australia |
| Telexar Technologies | New South Wales |
| Telford Internet | New South Wales |
| Telix Pharmaceuticals Ltd | Victoria |
| Tell Media | |
| Telligence Pty Ltd | New South Wales |
| Telrex | Queensland |
| Telstra Corporation Ltd | Victoria |
| Telstra Ventures | New South Wales |
| TelTech | Victoria |
| Temando | Queensland |
| Templeman Twells | Western Australia |
| Temtrol Technologies Pty Ltd | Tasmania |
| Ten Four | Queensland |
| Tenacious Ventures Management Pty Ltd | Victoria |
| TeQwise | Queensland |
| Terrasoft Web Design | New South Wales |
| Tesserent Group | |
| Testmate | |
| TGP Telecom Ltd | New South Wales |
| TGR BioSciences Pty Ltd | South Australia |
| TGRMN Software | South Australia |
| The Access Group | New South Wales |
| The App Team | Queensland |
| The App Workshop | |
| The Australian Business Review - Technology | New South Wales |
| The Australian Software Company | New South Wales |
| The Broadband Doctor | Western Australia |
| The Cartridge Warehouse | |
| The Commons | Victoria |