| 1000044643 | Ilu Space Oy | FI-Finland | Company | Yes | Alumnus | ESA BIC Finland | |
| 1000045295 | IMENSUS UG (haftungsbeschränkt) | DE-Germany | Company | Yes | Alumnus | ESA BIC Baden-Württemberg | |
| 1000042809 | Infraprint ltd | IE-Ireland | Company | Yes | Incubatee | ESA BIC Ireland | |
| 1000040131 | INSIGHIO P.C. | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000044654 | InSpacePropulsion Technologies GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Baden-Württemberg | |
| 1000033601 | INVOLI | CH-Switzerland | Company | Yes | Alumnus | ESA BIC Switzerland | |
| 1000019737 | I-SEA | FR-France | Company | Yes | Alumnus | ESA BIC Sud France | |
| 1000046242 | ivilion | DE-Germany | Company | Yes | Incubatee | ESA BIC North Rhine-Westphalia | |
| 1000023616 | KAPPAZETA LTD | EE-Estonia | Company | Yes | Alumnus | ESA BIC Estonia | |
| 1000040488 | KARL.farm ApS | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000035600 | KERMAP | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000040547 | KINETIK Space | DE-Germany | Company | Yes | Alumnus | ESA BIC Bavaria | |
| 1000042844 | Klarifi ApS | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000032353 | Klepsydra Technologies | CH-Switzerland | Company | Yes | Alumnus | ESA BIC Switzerland | |
| 1000043707 | koeniXadler GmbH | AT-Austria | Company | Yes | Alumnus | ESA BIC Austria | |
| 1000043305 | Kosmok PSA | PL-Poland | Company | Yes | Incubatee | ESA BIC Poland | |
| 1000040242 | Kreios Space S.L. | ES-Spain | Company | Yes | Alumnus | ESA BIC Barcelona | |
| 1000025162 | Kuva Space Oy | FI-Finland | Company | Yes | Alumnus | ESA BIC Finland | |
| 1000041078 | LATITUDE | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000032536 | Latitudo40 S.r.l. | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |