| Name | Type | Country |
|---|---|---|
| European Union | Enterprise | Belgium |
| Euskaltel | Enterprise | Spain |
| F6S Network Limited | Enterprise | United Kingdom |
| Factor CO2 Integral Services S.L. | Enterprise | Spain |
| Fagor Electrodomésticos | Enterprise | Spain |
| Fagor Electronica | Enterprise | Spain |
| Farsens | Enterprise | Spain |
| Fatronik | Enterprise | Spain |
| Federation Europeenne De Finances Et Banques Ethiques Et Alternatives | Enterprise | |
| Fidenet | Enterprise | Spain |