| 1000045679 | allunderground GmbH | DE-Germany | Company | No | Incubatee | ESA BIC Bavaria | |
| 1000041755 | AlphaEdge GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000046202 | Alteva Technologies GmbH | DE-Germany | Company | No | Incubatee | ESA BIC North Rhine-Westphalia | |
| 1000043080 | AmbaSat Ltd | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000044852 | Another Earth OG | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000044160 | apheros AG | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000035376 | Applied Aerial Technology - Nós Na nGaoithe Teoranta | IE-Ireland | Company | No | Alumnus | ESA BIC Ireland | |
| 1000046495 | Applied Atomics | GB-United Kingdom | Company | No | Incubatee | ESA BIC UK | |
| 1000044634 | Applied Innovative Methods | ES-Spain | Company | No | Incubatee | ESA BIC Madrid Region | |
| 1000039533 | Archimethod SA | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000044646 | Arctic Farming Oy | FI-Finland | Company | No | Alumnus | ESA BIC Finland | |
| 1000033477 | Arctic Space Technologies AB | SE-Sweden | Company | No | Alumnus | ESA BIC Sweden | |
| 1000041354 | ARE23 GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000034058 | AridGreen Technologies | DE-Germany | Company | No | Alumnus | ESA BIC Baden Württemberg | |
| 1000045324 | Arnell GmbH | DE-Germany | Company | No | Incubatee | ESA BIC Bavaria | |
| 1000044109 | ART O.T.F. S.R.L. | IT-Italy | Company | No | Incubatee | ESA BIC Lazio | |
| 1000042519 | Ascento AG | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000020975 | ASTRIONICS GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000035927 | asvin | DE-Germany | Company | No | Alumnus | ESA BIC Baden Württemberg | |
| 1000031755 | AT Space GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |