| 1000039520 | Solar Foods | FI-Finland | Company | Yes | Alumnus | ESA BIC Finland | |
| 1000036328 | Solenix Engineering GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000045953 | SOLIDKOSMOS S.A. | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000041650 | Solmeyea | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000038783 | Sorair Technologies LTD | GB-United Kingdom | Company | Yes | Alumnus | ESA BIC UK | |
| 1000025510 | Space Apps Kft. | HU-Hungary | Company | Yes | Alumnus | ESA BIC Hungary | |
| 1000048534 | Space Clipper Industries | GB-United Kingdom | Company | Yes | Incubatee | ESA BIC UK | |
| 1000027974 | Space Composite Structures DENMARK | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000039942 | SPACE DIMENSIONALLY OPTIMIZED TECHNOLOGY SATELLITES LTD - Space DOTS Ltd | GB-United Kingdom | Company | Yes | Alumnus | ESA BIC UK | |
| 1000034431 | Space For Life srl | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000041457 | Space Innovation Solutions | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000044422 | SPACE MOBILITY PC - Development of Advanced Mobile Robots | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000041339 | Space V srl | IT-Italy | Company | Yes | Alumnus | ESA BIC Turin | |
| 1000038455 | spacedreams | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000027033 | SpaceEXE Srl | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000041730 | Space-Fit Kft. | HU-Hungary | Company | Yes | Alumnus | ESA BIC Hungary | |
| 1000042080 | Spacefood UG (haft.besch.) | DE-Germany | Company | Yes | Alumnus | ESA BIC Northern Germany | |
| 1000047567 | Spaceform Sp. z o.o. | PL-Poland | Company | Yes | Incubatee | ESA BIC Poland | |
| 1000023439 | SPACEIT OÜ | EE-Estonia | Company | Yes | Alumnus | ESA BIC Estonia | |
| 1000029553 | Space-Lock GmbH | AT-Austria | Company | Yes | Alumnus | ESA BIC Austria | |