| FELD M GmbH | |
| feld.energy GmbH | |
| FELDSOFT Office Produkte | Hesse |
| Felix Schuchmann, M.Sc. | Hesse |
| Fellow Consulting AG | Bavaria |
| Fellowpro AG | |
| Felmo | Berlin |
| fem Forschungsinstitut | |
| Femet GmbH | Rhineland-Palatinate |
| Ferber-Software | North Rhine-Westphalia |
| Ferd Krämer | Hesse |
| Ferdinand-Braun-Institut gGmbH | |
| Fernride GmbH | |
| Fernstudium Informatik | Baden-Württemberg |
| FernUniverität in Hagen | North Rhine-Westphalia |
| feroXsoft | Bavaria |
| Ferroelectric Memory Company | |
| Ferrous Systems GmbH | |
| Feucht Bürosysteme GmbH | Bavaria |
| FFG FINANZCHECK Finanzportale GmbH | |
| ffm crossmedia Internetagentur | Hesse |
| FFS.net Communications | Baden-Württemberg |
| FGK Clinical Research GmbH | |
| FH Aachen University of Applied Sciences | |
| FH-Sat GmbH | Baden-Württemberg |
| FHEM e.V. | |
| Fiagon GmbH | |
| Fibra - Brandt Ltd | Rhineland-Palatinate |
| FibuNet GmbH | Schleswig-Holstein |
| Ficonet Systems GmbH | Saxony |
| ficonTEC Service GmbH | Lower Saxony |
| Fiction | |
| FIDELAK GmbH | North Rhine-Westphalia |
| Fides Technology GmbH | |
| Fiebig GmbH | Hesse |
| Fiedler Automationssoftware | Hesse |
| Fiegenbaum & Cie. GmbH | |
| Fieldcode GmbH | |
| FILAVISION - Internetagentur | Lower Saxony |
| Filcon Electronic GmbH | Bavaria |
| FileScan.IO | |
| Filestage GmbH | |
| Filiago GmbH & Co. KG | Schleswig-Holstein |
| Filics GmbH | |
| Filigris Works | Bavaria |
| FILK Freiberg Institute gGmbH | |
| FILOS Webdesign | |
| FILOU Software GmbH | North Rhine-Westphalia |
| Fimox Software GmbH | Bavaria |
| Fina | |