| 1000028957 | AGROINSIDER | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000043648 | Agroaerosapce S.L. | ES-Spain | Company | Yes | Alumnus | ESA BIC Madrid Region | |
| 1000032249 | AGRIBORA GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000045761 | Agrario Energy GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000050671 | Agracio s.r.o. | CZ-Czech Republic | Company | Yes | Incubatee | ESA BIC Czech Republic | |
| 1000023733 | AEVO | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000031183 | AETHRA, SA. | PT-Portugal | Company | Yes | Alumnus | ESA BIC Portugal | |
| 1000050862 | Aether Nordic AS | NO-Norway | Company | Yes | Incubatee | ESA BIC Norway | |
| 1000050529 | Aethena DeepMind ApS | DK-Denmark | Company | No | Incubatee | ESA BIC Denmark | |
| 1000046969 | Aerospec SA | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000028879 | Aeroficial Intelligence GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000034579 | AerisGate UG (haftungsbeschränkt) | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000040719 | Aerial Tools ApS | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000042388 | Aeomiq GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000050282 | Aegion Aerospace Private Limited | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000047988 | Adina Technologies | DK-Denmark | Company | No | Alumnus | ESA BIC Denmark | |
| 1000037190 | AdCoelum Space Research and Consulting LLC | HU-Hungary | Company | Yes | Incubatee | ESA BIC Hungary | |
| 1000040761 | AdapTronics | IT-Italy | Company | Yes | Alumnus | ESA BIC Turin | |
| 1000033316 | Adaptix Ltd. | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000050454 | ADA AI SOLUTIONS CONSULTING TRAINING SL | ES-Spain | Company | No | Incubatee | ESA BIC Castilla y Leon | |