| 1000048646 | Stratolia SAS | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000033762 | STRATOSYST s.r.o. | CZ-Czech Republic | Company | Yes | Alumnus | ESA BIC Czech Republic | |
| 1000026720 | Studiomapp srl | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000039852 | SUNNYB Innovations GmbH | AT-Austria | Company | Yes | Alumnus | ESA BIC Austria | |
| 1000037618 | Super-Sharp Space Systems Limited | GB-United Kingdom | Company | Yes | Alumnus | ESA BIC UK | |
| 1000033383 | SuperVision Earth GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000039255 | SUTHERLAND SYSTEMS ENGINEERING ENTERPRISE SSEE LTD | GB-United Kingdom | Company | Yes | Incubatee | ESA BIC UK | |
| 1000049197 | SVP Industries | IT-Italy | Company | Yes | Incubatee | ESA BIC Turin | |
| 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 | |
| 1000050011 | Tatracloud sp. z o.o. | PL-Poland | Company | Yes | Incubatee | ESA BIC Poland | |
| 1000048464 | TempestLabs AI s.r.o. | CZ-Czech Republic | Company | Yes | Incubatee | ESA BIC Czech Republic | |
| 1000045369 | TenuTec AB | SE-Sweden | Company | Yes | Alumnus | ESA BIC Sweden | |
| 1000039979 | TeraSi AB | SE-Sweden | Company | Yes | Alumnus | ESA BIC Sweden | |
| 1000045340 | Terensis GmbH | CH-Switzerland | Company | Yes | Alumnus | ESA BIC Switzerland | |
| 1000048025 | Tess Space ApS | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000050284 | TestNest UG (haftungsbeschränkt) | DE-Germany | Company | Yes | Incubatee | ESA BIC Hessen | |
| 1000048114 | Testnor AS | NO-Norway | Company | Yes | Alumnus | ESA BIC Norway | |