| Name | Type | Country |
|---|---|---|
| European Software Institute | Enterprise | Spain |
| European Space Agency | Research group | Netherlands |
| European Union | Enterprise | Belgium |
| European Union & Ministerio de Industria, Energía y Turismo | Public administration | |
| Euskaltel | Enterprise | Spain |
| F6S Network Limited | Enterprise | United Kingdom |
| Factor CO2 Integral Services S.L. | Enterprise | Spain |
| Facultad de Ingeniería | University | Spain |
| Faculty of Engineering, University of Deusto | Educational organization | Spain |
| Fagor Electrodomésticos | Enterprise | Spain |