| 1000035649 | I Clean My Sea | FR-France | Company | No | Alumnus | ESA BIC Sud France | |
| 1000046553 | ICEE.Space Czechia s.r.o. | CZ-Czech Republic | Company | Yes | Alumnus | ESA BIC Czech Republic | |
| 1000030749 | IceKing GmbH | AT-Austria | Company | No | Alumnus | ESA BIC Austria | |
| 1000033048 | I-CONIC Vision AB | SE-Sweden | Company | No | Alumnus | ESA BIC Sweden | |
| 1000033314 | IDAERO SOLUTIONS SL | ES-Spain | Company | No | Alumnus | ESA BIC Madrid Region | |
| 1000032151 | Ienai SPACE SL | ES-Spain | Company | No | Alumnus | ESA BIC Madrid Region | |
| 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 | |
| 1000047448 | immersea srl | IT-Italy | Company | No | Alumnus | ESA BIC Lazio | |
| 1000031609 | In Quattro | IT-Italy | Company | No | Alumnus | ESA BIC Lazio | |
| 1000039204 | Inergio technologies SA | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000047509 | InfiniNode Technologies AB | SE-Sweden | Company | Yes | Alumnus | ESA BIC Sweden | |
| 1000043373 | Inflabi GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000042809 | Infraprint ltd | IE-Ireland | Company | Yes | Alumnus | ESA BIC Ireland | |
| 1000045043 | InnoPilot ApS | DK-Denmark | Company | No | Alumnus | ESA BIC Denmark | |
| 1000044671 | InnoShiftIng GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000040131 | INSIGHIO P.C. | GR-Greece | Company | Yes | Alumnus | ESA BIC Greece | |
| 1000039299 | Insolight SA | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000044654 | InSpacePropulsion Technologies GmbH | DE-Germany | Company | Yes | Alumnus | ESA BIC Baden-Württemberg | |
| 1000029389 | Intelligence on Wheels (IoW) GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |