| 1000036936 | Ntention AS | NO-Norway | Company | No | Alumnus | ESA BIC Norway | |
| 1000040618 | Odonata GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000043081 | Officina REV srl | IT-Italy | Company | No | Incubatee | ESA BIC Turin | |
| 1000046769 | Oinride Oy | FI-Finland | Company | No | Incubatee | ESA BIC Finland | |
| 1000042494 | Okeanos Smart Data Solutions GmbH | DE-Germany | Company | No | Incubatee | ESA BIC North Rhine-Westphalia | |
| 1000042424 | Olive Robotics GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000043603 | onocoy Services AG | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000044838 | Optocycle GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |
| 1000030848 | ORBITAL CARGO DRONE LTD | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000013313 | ORBITAL EYE BV | NL-Netherlands | Company | No | Alumnus | ESA BIC Noordwijk | |
| 1000040177 | Orbital Outpost Italy S.R.L. | IT-Italy | Company | No | Alumnus | ESA BIC Turin | |
| 1000029399 | Orbital Witness Limited | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000044988 | Oris | IT-Italy | Company | No | Incubatee | ESA BIC Turin | |
| 1000036590 | OUR WATCH LEADS - OWL, LDA | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000031502 | OXFORD EARTH OBSERVATION LIMITED | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000031523 | Panda Insight UG (haftungsbeschrankt) | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000044665 | PEATZ ApS | DK-Denmark | Company | No | Incubatee | ESA BIC Denmark | |
| 1000035607 | Permagro | FR-France | Company | No | Alumnus | ESA BIC Sud France | |
| 1000047436 | Perovskia Solar AG | CH-Switzerland | Company | No | Incubatee | ESA BIC Switzerland | |
| 1000044829 | Pflanzentheke GmbH | DE-Germany | Company | No | Incubatee | ESA BIC Hessen | |