| 1000034058 | AridGreen Technologies | DE-Germany | Company | No | Alumnus | ESA BIC Baden Württemberg | |
| 1000041354 | ARE23 GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000033477 | Arctic Space Technologies AB | SE-Sweden | Company | No | Alumnus | ESA BIC Sweden | |
| 1000044646 | Arctic Farming Oy | FI-Finland | Company | No | Alumnus | ESA BIC Finland | |
| 1000040396 | ArcSpace | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000039533 | Archimethod SA | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000030705 | ARCEON B.V. | NL-Netherlands | Company | Yes | Alumnus | ESA BIC Noordwijk | |
| 1000025109 | ARCA DYNAMICS | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000045785 | Aquaguard Technologies | SE-Sweden | Company | Yes | Incubatee | ESA BIC Sweden | |
| 1000044884 | AQ ANALYTICS, LDA | PT-Portugal | Company | Yes | Incubatee | ESA BIC Portugal | |
| 1000019969 | APR TECHNOLOGIES AB | SE-Sweden | Company | Yes | Alumnus | ESA BIC Sweden | |
| 1000044634 | Applied Innovative Methods | ES-Spain | Company | No | Incubatee | ESA BIC Madrid Region | |
| 1000046495 | Applied Atomics | GB-United Kingdom | Company | No | Incubatee | ESA BIC UK | |
| 1000035376 | Applied Aerial Technology - Nós Na nGaoithe Teoranta | IE-Ireland | Company | No | Alumnus | ESA BIC Ireland | |
| 1000040261 | APO-GEE ENGINEERING SRL | BE-Belgium | Company | Yes | Alumnus | ESA BIC Belgium | |
| 1000044160 | apheros AG | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000031524 | Anzen Aerospace Engineering | ES-Spain | Company | Yes | Alumnus | ESA BIC Madrid Region | |
| 1000027089 | ANYWAVES | FR-France | Company | Yes | Alumnus | ESA BIC Sud France | |
| 1000044852 | Another Earth OG | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000041955 | ANGELY P.C. | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |