| 1000040048 | ATLANT 3D Nanosystems | DK-Denmark | Company | No | Alumnus | ESA BIC Denmark | |
| 1000035501 | Atlantic Spaceport Consortium, Lda | PT-Portugal | Company | No | Incubatee | ESA BIC Portugal | |
| 1000037018 | Atlas Aero GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000044894 | Augmenterra GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000034325 | Auravant | ES-Spain | Company | No | Alumnus | ESA BIC Madrid Region | |
| 1000047995 | AUTONOMA PRIVATE COMPANY | GR-Greece | Company | No | Incubatee | ESA BIC Greece | |
| 1000028988 | AVIONTEK GMBH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000034899 | Bareways GmbH | DE-Germany | Company | No | Incubatee | ESA BIC Northern Germany | |
| 1000040165 | Beetle ForTech | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000033765 | Benenati & Edwards GbR | DE-Germany | Company | No | Alumnus | ESA BIC Baden Württemberg | |
| 1000036644 | BestHealth4U | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000043139 | BIOORBIT LTD | GB-United Kingdom | Company | No | Incubatee | ESA BIC UK | |
| 1000045466 | BIOTA MRV LTD | IE-Ireland | Company | No | Incubatee | ESA BIC Ireland | |
| 1000033967 | Black Engine Aerospace GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Baden Württemberg | |
| 1000039625 | Blackpin GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Baden Württemberg | |
| 1000017739 | BLUE THREAD SRL | IT-Italy | Company | No | Alumnus | ESA BIC Lazio | |
| 1000019227 | BLUECOVER TECHNOLOGIES, LDA | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000044805 | BlueZ C Institute - Asssociação para a conservação marinha e economia do carbono | PT-Portugal | Company | No | Incubatee | ESA BIC Portugal | |
| 1000032681 | Boscalia Technologies, S.L | ES-Spain | Company | No | Alumnus | ESA BIC Madrid Region | |
| 1000039381 | Bota Systems AG | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |