| 1000034770 | Glanaer Engineering Ltd | IE-Ireland | Company | No | Alumnus | ESA BIC Ireland | |
| 1000045628 | GLAPE GMBH | DE-Germany | Company | No | Alumnus | ESA BIC Baden-Württemberg | |
| 1000034125 | Glassface GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000045074 | GLAZE Technologies | DK-Denmark | Company | Yes | Alumnus | ESA BIC Denmark | |
| 1000037764 | GlobeEye SAS | FR-France | Company | No | Alumnus | ESA BIC Nord France | |
| 1000027800 | GMATICS SRL | IT-Italy | Company | Yes | Alumnus | ESA BIC Lazio | |
| 1000028224 | Golbriak Space oü | EE-Estonia | Company | Yes | Alumnus | ESA BIC Estonia | |
| 1000046699 | Goodforest | FR-France | Company | Yes | Alumnus | ESA BIC Nord France | |
| 1000042384 | Gravis Robotics AG | CH-Switzerland | Company | No | Alumnus | ESA BIC Switzerland | |
| 1000048554 | GravityX | LT-Lithuania | Company | No | Incubatee | ESA BIC Lithuania | |
| 1000049013 | GRAVITYX LIMITED | IE-Ireland | Company | No | Incubatee | ESA BIC Ireland | |
| 1000046148 | GravTech Solutions Ltd. | GB-United Kingdom | Company | No | Incubatee | ESA BIC UK | |
| 1000043562 | Green Convenience GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000043491 | Green Elephant Biotech GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Hessen | |
| 1000047537 | GREEN HAVEN Prosta Spolka Akcyjna | PL-Poland | Company | No | Alumnus | ESA BIC Poland | |
| 1000046024 | GREEN METRICS LDA | PT-Portugal | Company | Yes | Alumnus | ESA BIC Portugal | |
| 1000024553 | GREEN SPIN GmbH | DE-Germany | Company | No | Alumnus | ESA BIC Bavaria | |
| 1000047458 | Green Urbansights AB | SE-Sweden | Company | Yes | Incubatee | ESA BIC Sweden | |
| 1000041735 | Greendata, Lda. | PT-Portugal | Company | No | Alumnus | ESA BIC Portugal | |
| 1000039170 | GreenEmissions AB | SE-Sweden | Company | No | Alumnus | ESA BIC Sweden | |