| 1000046732 | KOKO Forest Oy | FI-Finland | Company | No | Incubatee | ESA BIC Finland | |
| 1000044162 | KoraLabs GmbH | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000043305 | Kosmok PSA | PL-Poland | Company | Yes | Incubatee | ESA BIC Poland | |
| 1000046391 | KOTA Sp. z.o.o | PL-Poland | Company | No | Incubatee | ESA BIC Poland | |
| 1000043799 | Lamb Space Tec GmbH | DE-Germany | Company | No | Incubatee | ESA BIC North Rhine-Westphalia | |
| 1000045668 | Lederer Peter Dipl.-Ing. | AT-Austria | Company | No | Incubatee | ESA BIC Austria | |
| 1000042393 | lemvos GmbH | DE-Germany | Company | Yes | Incubatee | ESA BIC Bavaria | |
| 1000042667 | LEOBLUE | FR-France | Company | No | Incubatee | ESA BIC Sud France | |
| 1000042122 | levelQuantum s.r.l. | IT-Italy | Company | Yes | Incubatee | ESA BIC Turin | |
| 1000047798 | LEXION Ι Κ Ε | GR-Greece | Company | No | Incubatee | ESA BIC Greece | |
| 1000041807 | LIDAX ELECTRO-OPTICAL SYSTEMS S.L. | ES-Spain | Company | No | Incubatee | ESA BIC Madrid Region | |
| 1000046738 | Lightnovo ApS | DK-Denmark | Company | No | Incubatee | ESA BIC Denmark | |
| 1000042721 | Linking Drones UG | DE-Germany | Company | Yes | Incubatee | ESA BIC Hessen | |
| 1000032753 | LIQUIFER Space Systems GmbH | DE-Germany | Company | Yes | Incubatee | ESA BIC Northern Germany | |
| 1000045064 | LirOptic Limited | IE-Ireland | Company | No | Incubatee | ESA BIC Ireland | |
| 1000045141 | LogBook AG | CH-Switzerland | Company | Yes | Incubatee | ESA BIC Switzerland | |
| 1000047260 | Lokahi Technology Systems FlexCo | AT-Austria | Company | Yes | Incubatee | ESA BIC Austria | |
| 1000045830 | LOKI s.r.l. | IT-Italy | Company | Yes | Incubatee | ESA BIC Turin | |
| 1000047198 | Manteo AI P.C. | GR-Greece | Company | Yes | Incubatee | ESA BIC Greece | |
| 1000044099 | Mantis Photonics AB | SE-Sweden | Company | No | Incubatee | ESA BIC Sweden | |