| Allaboutapps | |
| AllegroSurf | Vienna |
| Alpen-Adria-Universität Klagenfurt | Carinthia |
| Alpen-Adria-Universität Klagenfurt - Institut für Infomationstechnologie | |
| Alpha Awards | |
| Alphaset Handelsges.m.b.H. | Vienna |
| Alpine Quantum Technologies GmbH | |
| Alpineconcepts Webdesign Österreich | Tyrol |
| Ambiera e.U. | Lower Austria |
| Ambiera e.U. | |
| Amcoss GmbH | |
| Ameisenhaufen GmbH | |
| AMIGA Telecom GmbH | Vienna |
| AMS AG | Styria |
| AMZ.One | |
| Andreas Monitzer | Vienna |
| Andreas Tasch | Burgenland |
| Andys Coworking Company GmbH | |
| ANEXIA Internetdienstleistungs GmbH | Carinthia |
| Angios GmbH | |
| Antagonis Biotherapeutics | |
| Antares NetlogiX Netzwerkberatung GmbH | Lower Austria |
| Antiloop GmbH | |
| Anton Bruckner Privatuniversität | |
| Anwert Digital GmbH | |
| AnYxis Immuno-Oncology GmbH | |
| AOP Orphan Pharmaceuticals GmbH | |
| APARUS | |
| APEIRON Biologics AG | |
| APEPTICO | |
| APEPTICO Forschung und Entwicklung GmbH | |
| APEX gaming technology GmbH | Upper Austria |
| APEX Ventures GmbH | |
| api Österreich GmbH | Lower Austria |
| APILayer | |
| Apollo.ai GmbH | |
| Aposcience AG | |
| AppArtig e.U. | |
| AppHouseKitchen GmbH | |
| Appingo GmbH | |
| Applied Informatics Software Engineering GmbH | Carinthia |
| Appointmed | |
| arbyte web solutions GmbH | |
| ArCon Software | Salzburg |
| Areeka digital education GmbH | |
| Ariot OG | |
| Arkeon GmbH | |
| Arkulpa GmbH | |
| Arland Trading GmbH | Styria |
| Ars Electronica Linz GmbH & Co. KG | Upper Austria |