| 1000041437 | Green Magpie Tech UG (haftungsbeschränkt) | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000024553 | GREEN SPIN GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000035239 | GreenEO UG | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000047674 | greenkeeper GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000031608 | Greenspider gmbh | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000039955 | HALO Technologies UG (haftungsbeschränkt) | DE-Germany | Company | No | Alumnus | ESA BIC North Rhine-Westphalia | |
| 1000048547 | Hard and Software Technologies UG | DE-Germany | Company | No | Incubatee | ESA BIC Hessen | |
| 1000042382 | HAT.tec GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000032423 | Hawa Dawa | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000043690 | HCP Sense GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000032900 | HeraSpace UG | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000042191 | Horizon Microtechnologies Gmbh | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |
| 1000031470 | HOSTmi GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000046217 | HoZe Solutions GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC North Rhine-Westphalia | |
| 1000045689 | Hula Technology GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000049786 | HVsys Testing UG (haftungsbeschränkt) | DE-Germany | Company | No | Incubatee | ESA BIC Hessen | |
| 1000045426 | Hypersonica GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000051320 | Hyposto Energy GmbH | DE-Germany | Company | No | Incubatee | ESA BIC Hessen | |
| 1000039556 | HYVIATE GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000044186 | ILLUTHERM GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |