| 1000045506 | Systellar Space SL | ES-Spain | Company | Yes | Incubatee | ESA BIC Barcelona | |
| 1000038792 | Taara Robotics OÜ | EE-Estonia | Company | Yes | Incubatee | ESA BIC Estonia | |
| 1000042432 | TALOS GmbH | DE-Germany | Company | Yes | Incubatee | ESA BIC Bavaria | |
| 1000042983 | Tenics Software Engineering GmbH | DE-Germany | Company | Yes | Incubatee | ESA BIC Northern Germany | |
| 1000045369 | TenuTec AB | SE-Sweden | Company | Yes | Incubatee | ESA BIC Sweden | |
| 1000039979 | TeraSi AB | SE-Sweden | Company | Yes | Alumnus | ESA BIC Sweden | |
| 1000045340 | Terensis GmbH | CH-Switzerland | Company | Yes | Incubatee | ESA BIC Switzerland | |
| 1000040681 | TERNWAVES | FR-France | Company | Yes | Alumnus | ESA BIC Sud France | |
| 1000018730 | TERRANIS SAS | FR-France | Company | Yes | Alumnus | ESA BIC Sud France | |
| 1000041321 | Thaliana Space sp. z o.o. | PL-Poland | Company | Yes | Incubatee | ESA BIC Poland | |
| 1000038318 | The Exploration Company | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000043084 | The Plasma Rocket Company | DE-Germany | Company | Yes | Incubatee | ESA BIC Hessen | |
| 1000044798 | Theia Labs KG | AT-Austria | Company | Yes | Incubatee | ESA BIC Austria | |
| 1000043984 | THOTHX - SERVIÇOS DE RADAR ESPACIAL, LDA | PT-Portugal | Company | Yes | Incubatee | ESA BIC Portugal | |
| 1000037276 | Timing Solutions Ltd | IE-Ireland | Company | Yes | Incubatee | ESA BIC Ireland | |
| 1000032660 | TITAN4 srl | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000045111 | TOM Robotics GmbH | AT-Austria | Company | Yes | Alumnus | ESA BIC Austria | |
| 1000042594 | Toqua | BE-Belgium | Company | Yes | Alumnus | ESA BIC Belgium | |
| 1000044657 | Tordenskjold ApS | DK-Denmark | Company | Yes | Incubatee | ESA BIC Denmark | |
| 1000041027 | Tycho Space Technologies AS | NO-Norway | Company | Yes | Incubatee | ESA BIC Norway | |