| 1000011647 | TERATECH COMPONENTS LIMITED | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000045340 | Terensis GmbH | CH-Switzerland | Company | Yes | Alumnus | ESA BIC Switzerland | |
| 1000041840 | Ternow GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000038645 | Teromovigo - Earth Innovation Lda | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000017022 | TERRA MOTION LIMITED | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000025656 | terraplasma GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000036115 | TerraRad Tech AG | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000049448 | TerraStab | FR-France | Company | No | Incubatee | ESA BIC Nord France | |
| 1000040638 | TERRAVIONICS SRL | IT-Italy | Company | No | Alumnus | ESA BIC Lazio | |
| 1000048025 | Tess Space ApS | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000028495 | Tesselo | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000050284 | TestNest UG (haftungsbeschränkt) | DE-Germany | Company | Yes | Incubatee | ESA BIC Hessen | |
| 1000048114 | Testnor AS | NO-Norway | Company | Yes | Alumnus | ESA BIC Norway | |
| 1000045286 | Tethys | FR-France | Company | Yes | Alumnus | ESA BIC Sud France | |
| 1000051034 | Tethys Robotics AG | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000041321 | Thaliana Space sp. z o.o. | PL-Poland | Company | Yes | Alumnus | ESA BIC Poland | |
| 1000038318 | The Exploration Company | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000034328 | The Loop Company | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000043084 | The Plasma Rocket Company | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000044798 | Theia Labs KG | AT-Austria | Company | Yes | Incubatee | ESA BIC Austria | |