| Industrial Recruitment Partners | Western Australia |
| Infinite Logic | Western Australia |
| Infinite Networks | Australian Capital Territory |
| Infiniti Telecommunications Pty Ltd | Victoria |
| Infinity Computer | Victoria |
| Influx | Victoria |
| Info Plan Software | Victoria |
| Info-Design Online | Queensland |
| Info-Onscreen | New South Wales |
| Infobiz Solutions | South Australia |
| InfoConnect | Western Australia |
| InfoDEN | Queensland |
| Infomedia Ltd | New South Wales |
| InfoQweb Ltd | Western Australia |
| Informatel | Victoria |
| Information & Design | Victoria |
| Information Professionals | Queensland |
| Informatix Pty Ltd | Queensland |
| Infravision | |
| Ink Hub | South Australia |
| Ink Station | New South Wales |
| InkBank.com | Australian Capital Territory |
| Inkjet Toner Refills | Queensland |
| Inkwire | Australian Capital Territory |
| Innodev Pty Ltd | South Australia |
| Innovation New South Wales | New South Wales |
| InnovationACT | Australian Capital Territory |
| InnovationAus.com Pty Ltd | |
| Innovative Computer Solutions (Aust) Pty Ltd | New South Wales |
| Innovent Business Solutions Pty Ltd | New South Wales |
| Innovyz | South Australia |
| Innoweb Pty Ltd | New South Wales |
| InoTec | New South Wales |
| INOVIQ Ltd | Victoria |
| Insane Technologies Pty Ltd | Queensland |
| Insitec | Australian Capital Territory |
| InSitu Tech Support | New South Wales |
| Institute of Technology Australia | South Australia |
| inTechnology Distribution Pty Ltd | Queensland |
| Integral Logic Pty Ltd | Queensland |
| Integral Media Pty Ltd | |
| Integral Technology Solutions | Queensland |
| Integrale Marketing Pty Ltd | Victoria |
| Integrated Technical Software Pty Ltd | Victoria |
| Integratedfm Ltd | New South Wales |
| Intellect Information Technology Pty Ltd | Victoria |
| Intellectual Technology & Communication | New South Wales |
| IntelliDesign Pty Ltd | Queensland |
| IntelligenceBank | Victoria |
| Intelligent Home | Western Australia |