| 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 | Alumnus | 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 | |
| 1000044620 | Botronics | BE-Belgium | Company | No | Alumnus | ESA BIC Belgium | |
| 1000044928 | Breaby GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000041639 | BSc Max Aragon Cerecedes | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000048247 | Byte2Bit ApS | DK-Denmark | Company | No | Incubatee | ESA BIC Denmark | |
| 1000041164 | CAIUS E.E. | GR-Greece | Company | No | Alumnus | ESA BIC Greece | |
| 1000031818 | CANARD DRONES SL | ES-Spain | Company | No | Alumnus | ESA BIC Madrid Region | |
| 1000034038 | Captiks | IT-Italy | Company | No | Alumnus | ESA BIC Lazio | |
| 1000048647 | Carbon Harvesters Global S.L.U. | ES-Spain | Company | No | Alumnus | ESA BIC Valencia | |
| 1000031671 | Carbon Waters | FR-France | Company | No | Alumnus | ESA BIC Sud France | |
| 1000042752 | CarbonAct AB | SE-Sweden | Company | No | Alumnus | ESA BIC Sweden | |
| 1000041268 | CargoKite GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000033512 | CargoSteps GmbH & Co. KG | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000048478 | Caribou - ESG Toolbox UG (haftungsbeschränkt) | DE-Germany | Company | No | Incubatee | ESA BIC Hessen | |
| 1000045941 | Carla Mae Arellano | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000044017 | Cassio-P SA | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |