| 1000042750 | reLi Energy | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000044910 | Remea GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000037593 | Remos Space Systems AB | SE-Sweden | Company | No | Alumnus | ESA BIC Sweden | |
| 1000047024 | Renegade Science Innovation FlexCo | AT-Austria | Company | Yes | Alumnus | ESA BIC Austria | |
| 1000026638 | Rescon Ltd | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000033344 | Responsive Access Limited | GB-United Kingdom | Company | No | Alumnus | ESA BIC UK | |
| 1000036609 | Reveal AI UG | DE-Germany | Company | Yes | Alumnus | ESA BIC Hessen | |
| 1000045042 | Ricardo, Domingos & Bergano, Lda | PT-Portugal | Company | Yes | Alumnus | ESA BIC Portugal | |
| 1000042772 | RIDE | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000044093 | Right Step OÜ | EE-Estonia | Company | Yes | Alumnus | ESA BIC Estonia | |
| 1000032263 | Rigi Technologies | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000044844 | Riverkin GmbH | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000041983 | Robco GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000026606 | Robotic Eyes GmbH & Co KG | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000039380 | Robotto Co ApS | DK-Denmark | Company | No | Alumnus | ESA BIC Denmark | |
| 1000048519 | Rosa Earth SAS | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000041484 | RoseEnergetic UG (haftungsbeschränkt) | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000043569 | Roundpeg Technologies GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000046564 | ROUTEZERO LTD | GB-United Kingdom | Company | Yes | Alumnus | ESA BIC UK | |
| 1000038239 | R-Space GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |