| 1000026758 | Survey Lab | IT-Italy | Company | No | Alumnus | ESA BIC Lazio | |
| 1000042775 | SURVIOT Monitoring Mérnöki Szolgáltató Korlátolt Felelősségű Társaság | HU-Hungary | Company | No | Alumnus | ESA BIC Hungary | |
| 1000033592 | Swarm Logistics GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |
| 1000041400 | Swistor SA | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000043413 | Sylva AI | FR-France | Company | No | Alumnus | ESA BIC Nord France | |
| 1000041849 | Sylva Germany UG | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000043149 | Symphera GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000040450 | Synchropal srl | IT-Italy | Company | No | Alumnus | ESA BIC Turin | |
| 1000042145 | syrenna | NO-Norway | Company | No | Alumnus | ESA BIC Norway | |
| 1000045506 | Systellar Space SL | ES-Spain | Company | Yes | Alumnus | ESA BIC Barcelona | |
| 1000038792 | Taara Robotics OÜ | EE-Estonia | Company | Yes | Alumnus | ESA BIC Estonia | |
| 1000042432 | TALOS GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000045508 | Tao Climate | IE-Ireland | Company | Yes | Alumnus | ESA BIC Ireland | |
| 1000037759 | Team Tumbleweed Forschungs OG | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000035363 | TELLUX | FR-France | Company | No | Alumnus | ESA BIC Nord France | |
| 1000042983 | Tenics Software Engineering GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Northern Germany | |
| 1000045369 | TenuTec AB | SE-Sweden | Company | Yes | Alumnus | ESA BIC Sweden | |
| 1000039979 | TeraSi AB | SE-Sweden | Company | Yes | Alumnus | ESA BIC Sweden | |
| 1000011647 | TERATECH COMPONENTS LIMITED | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000045340 | Terensis GmbH | CH-Switzerland | Company | Yes | Alumnus | ESA BIC Switzerland | |