| Name | Type | Country |
|---|---|---|
| Garaia Sociedad Cooperativa | Enterprise | Spain |
| Geko NavSat | Enterprise | Spain |
| Geomobile GMBH | Enterprise | Germany |
| Germibus XXI | Enterprise | Spain |
| Gerokon | Enterprise | Spain |
| Gestionet Multimedia S.L. | Enterprise | España |
| Ghent university | University | Belgium |
| Global Online Laboratory Consortium | Association | Austria |
| GNOSS | Enterprise | Spain |
| Gobierno de España | Enterprise | Spain |