| Alpine Business Incubator for Space Tech Startups | |
| AlpSoft S.A. | Valais |
| Alsoft Informatk AG | Grisons |
| alt.co | |
| alt.co | |
| Altamira Therapeutics | Basel-Stadt |
| AlternativeSoft | Zurich |
| Altreda AG | Zurich |
| Altus Impact | |
| AlveoliX AG | |
| Amacker & Partner Informatik AG | Zurich |
| Amal Therapeutics S.A. | |
| Amaris Consulting | |
| Amazee.io | |
| Amazentis S.A. | |
| Ambit Group AG | Zurich |
| Amétiq GmbH | Schwyz |
| AMIV Bastli | |
| Amrein Engineering AG | Aargau |
| Amstutz Trainings GmbH | Zug |
| AMYRA Biotech AG | |
| Anaconsol GmbH | Zurich |
| AnaSys AG | Zurich |
| Anaveon AG | |
| Andreas Imhof Imhof EDV-Dienstleistungen | Bern |
| Andy Kunz Grafikdesign | Aargau |
| Anivo 360 AG | |
| Anjarium Biosciences AG | |
| Annanow Group AG | |
| Anoma | |
| Anou2 | Vaud |
| Ansorix | Bern |
| ANT-Informatik AG | |
| Antares Kommunikationstechnik AG | Zurich |
| Antavis AG | Aargau |
| Antion Biosciences S.A. | |
| ANYbotics | |
| AnyWeb AG | Zurich |
| Apertis Consulting | Basel-Landschaft |
| Aphaia Pharma AG | |
| Apheros | |
| Apiax AG | Zurich |
| ApiMedic | |
| Apload GmbH | Solothurn |
| AppBrain | Zurich |
| Appenzeller Webdesign GmbH | Zurich |
| Apple Glattzentrum | Zurich |
| Apple Rue de Rive | Geneva |
| Applic8 S.A. | Vaud |
| Apps with love AG | |