| Company | Location | Website |
|---|
| Freedom Energy Logistics | Auburn, New Hampshire | Visit site |
| Freedom Power | Austin, Texas | Visit site |
| Freja Offshore | Stockholm, Stockholm | Visit site |
| Fresh Electrical Solutions Ltd | Basildon, England | Visit site |
| Frigate | Dover, Delaware | Visit site |
| Fronius USA | Portage, Indiana | Visit site |
| Fronius Österreich | Wels, Upper Austria | Visit site |
| Fronius İstanbul | Tuzla, Istanbul | Visit site |
| Frontier Economics | London, England | Visit site |
| Fronus Solar Energy | Minchinabad, Punjab | Visit site |
| Fuchs & Eule | Berlin, Berlin | Visit site |
| Fuel Cell & Hydrogen Energy Association (FCHEA) | Washington, District of Columbia | Visit site |
| FuelCare | Lynnwood, Washington | Visit site |
| FuelsEurope | Auderghem, Brussels-Capital | Visit site |
| Fuji Electric (Malaysia) Sdn. Bhd. | Kulim, Kedah | Visit site |
| Fuji Electric Co., Ltd. | 東京都, Tokyo Prefecture | Visit site |
| Fundusze Europejskie | Warszawa, Masovian Voivodeship | Visit site |
| Fusebox | Tallinn, Harju | Visit site |
| Futech BVBA | Tessenderlo, Limburg | Visit site |
| FuturEnergSystems | London, England | Visit site |
| FuturaSun | Cittadella, Padua | Visit site |
| Future Greens | Sheffield, England | Visit site |
| Future Planet Capital | London, England | Visit site |
| Future Solar | Vadodara, Gujarat | Visit site |
| Fénix Energy | Buenos Aires, Buenos Aires | Visit site |