| 1000041421 | ARTI - Autonomous Robot Technology GmbH | AT-Austria | Company | Yes | Alumnus | ESA BIC Austria | |
| 1000042602 | Asana Cat UG (haftungsbeschränkt) | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000046170 | Ascend Beyond Space | FR-France | Company | Yes | Alumnus | ESA BIC Sud France | |
| 1000042519 | Ascento AG | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000041393 | Ask Earth AG | CH-Switzerland | Company | Yes | Alumnus | ESA BIC Switzerland | |
| 1000051548 | Aspecto AS | NO-Norway | Company | No | Incubatee | ESA BIC Norway | |
| 1000041758 | Aspia Space Ltd | GB-United Kingdom | Company | Yes | Alumnus | ESA BIC UK | |
| 1000040694 | Astradyne SRL | IT-Italy | Company | Yes | Alumnus | ESA BIC Turin | |
| 1000020975 | ASTRIONICS GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000044330 | Astrofood | BE-Belgium | Company | Yes | Alumnus | ESA BIC Belgium | |
| 1000044309 | Astrolayers sp. z o.o. | PL-Poland | Company | Yes | Alumnus | ESA BIC Poland | |
| 1000039165 | Astron Systems Ltd | GB-United Kingdom | Company | Yes | Alumnus | ESA BIC UK | |
| 1000030745 | Astronautin GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Northern Germany | |
| 1000042564 | Astrotectonic Ltd. | PL-Poland | Company | No | Alumnus | ESA BIC Poland | |
| 1000035927 | asvin | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |
| 1000042858 | ASYNCHRONICS SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ | PL-Poland | Company | Yes | Alumnus | ESA BIC Poland | |
| 1000031755 | AT Space GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000037990 | Atheras Analytics | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000037196 | Atla.ai | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000040048 | ATLANT 3D Nanosystems | DK-Denmark | Company | No | Alumnus | ESA BIC Denmark | |