| 1000040613 | SunPlower Propeller GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000049566 | SuperVision Alliance | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000033383 | SuperVision Earth GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000048823 | SustainStruct | DE-Germany | Company | No | Incubatee | ESA BIC Hessen | |
| 1000033592 | Swarm Logistics GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |
| 1000041849 | Sylva Germany UG | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000043149 | Symphera GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000042432 | TALOS GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000042983 | Tenics Software Engineering GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Northern Germany | |
| 1000041840 | Ternow GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000048057 | TerraLens | DE-Germany | Company | Yes | Incubatee | ESA BIC Bavaria | |
| 1000025656 | terraplasma GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000050284 | TestNest UG (haftungsbeschränkt) | DE-Germany | Company | Yes | Incubatee | ESA BIC Hessen | |
| 1000038318 | The Exploration Company | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000043084 | The Plasma Rocket Company | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000031622 | TIWARI Scientific Instruments GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000051264 | TRACK Technologies UG (haftungsbeschränkt) | DE-Germany | Company | No | Incubatee | ESA BIC Hessen | |
| 1000050540 | TrackTech GmbH | DE-Germany | Company | Yes | Incubatee | ESA BIC Hessen | |
| 1000028140 | Unisphere GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000046188 | UniteLabs GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |