| 1000019227 | BLUECOVER TECHNOLOGIES, LDA | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000037258 | boltzplatz - numerical plasma dynamics GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Baden Württemberg | |
| 1000021469 | B-OPEN SOLUTIONS SRL | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 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 | |
| 1000041639 | BSc Max Aragon Cerecedes | AT-Austria | Company | No | Incubatee | ESA BIC Austria | |
| 1000042431 | BTRY AG | CH-Switzerland | Company | Yes | Incubatee | ESA BIC Switzerland | |
| 1000026569 | Cadami GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000041164 | CAIUS E.E. | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000031818 | CANARD DRONES SL | ES-Spain | Company | No | Alumnus | ESA BIC Madrid Region | |
| 1000034828 | Capra Robotics ApS | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000034038 | Captiks | IT-Italy | Company | No | Alumnus | ESA BIC Lazio | |
| 1000033512 | CargoSteps GmbH & Co. KG | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000044017 | Cassio-P SA | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000039064 | Cavicore UG (haftungsbeschränkt) | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000035335 | Celestial Space Technologies GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000034045 | Centrale Valutativa | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000039469 | Cevotec GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000032787 | CHEXS | DK-Denmark | Company | No | Alumnus | ESA BIC Denmark | |
| 1000034163 | Circuits Integrated Hellas IKE | GR-Greece | Company | No | Alumnus | ESA BIC Greece | |