| IceKing GmbH | |
| ICLR | |
| ICRA Dumfarth & Schwap OG | Salzburg |
| id-werbeagentur | Salzburg |
| IDC EDV GmbH | Tyrol |
| IdeasOnCanvas GmbH | Vienna |
| IDEC GmbH | Styria |
| Ideenreich Websolutions GmbH | |
| IDENTI.NET Internet + Software Services GmbH | Vorarlberg |
| Identum Communications GmbH | |
| iDWELL GmbH | |
| IGS Systemmanagement GmbH & Co. KG | Upper Austria |
| iiNES GmbH | Lower Austria |
| IKARUS Security Software | Vienna |
| illwerke vkw AG | |
| IMA-Systems Information-Technology GmbH | Vorarlberg |
| ImageBiopsy Lab | |
| ImageWare Scannerservice GmbH | Vienna |
| IMC Fachhochschule Krems GmbH | Lower Austria |
| Imendo GmbH | |
| immedi.at | Upper Austria |
| ImmoZ Betriebs GmbH | Styria |
| Impact Days | |
| Impact Hub GmbH | Vienna |
| Impact Hub Vienna | |
| Imprint Analytics GmbH | |
| IMS Ionen Mikrofabrikations Systeme GmbH | Vienna |
| IMSoft - DI Michael Karg | Vienna |
| INAUT Automation GmbH | Lower Austria |
| Indivisual Online Media GmbH | Upper Austria |
| indoo.rs GmbH | Vienna |
| Industrie Informatik GmbH | Upper Austria |
| Industrie Software Entwicklung GmbH | Vienna |
| Info.at Internet GmbH | Salzburg |
| InfoParc - Christian Metzler | Vienna |
| Informance IT | Vienna |
| Informer Österreich | |
| INFOTECH EDV-Systeme GmbH | Upper Austria |
| Infotemp | |
| infoWERK Medien & Technik GmbH | Tyrol |
| Ing. Ernst G. Michalek | Vienna |
| Ing. Günter Grüner GmbH | Lower Austria |
| Ing. Johannes Hainzl GmbH | Styria |
| Ing. Martin Bauer-Marschallinger EDV Dienstleistungen | Upper Austria |
| Ingram Micro GmbH | Vienna |
| INiTS Universitäres Gründerservice Wien GmbH | Vienna |
| Innerspace GmbH | |
| Innolab | |
| Innophore GmbH | |
| innoSIDE Web Solutions | |