| 1000041512 | AZUL HEREDITÁRIO, LDA | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000042232 | B2Space | GB-United Kingdom | Company | Yes | Alumnus | ESA BIC UK | |
| 1000050586 | Baltic Space Systems Sp. z o.o. | PL-Poland | Company | No | Incubatee | ESA BIC Poland | |
| 1000034899 | Bareways GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Northern Germany | |
| 1000046350 | Be MarS Aps | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000040165 | Beetle ForTech | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000033765 | Benenati & Edwards GbR | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |
| 1000025799 | Bennamann Ltd. | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000036644 | BestHealth4U | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000040994 | BETADYNAMIQ S.R.L. | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000038653 | Betrian a.s. | CZ-Czech Republic | Company | Yes | Alumnus | ESA BIC Czech Republic | |
| 1000047701 | Better Futures | IE-Ireland | Company | No | Incubatee | ESA BIC Ireland | |
| 1000030473 | Big Terra Alpha | CZ-Czech Republic | Company | Yes | Alumnus | ESA BIC Czech Republic | |
| 1000047195 | Biodrone AS | NO-Norway | Company | No | Alumnus | ESA BIC Norway | |
| 1000043139 | BIOORBIT LTD | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000045466 | BIOTA MRV LTD | IE-Ireland | Company | No | Alumnus | ESA BIC Ireland | |
| 1000046963 | Birdwatcher | HU-Hungary | Company | No | Alumnus | ESA BIC Hungary | |
| 1000048484 | BITPET AS | NO-Norway | Company | No | Alumnus | ESA BIC Norway | |
| 1000039610 | Bitrezus P.C. | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000033967 | Black Engine Aerospace GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |