| Abbreviation | Definition |
|---|---|
| FITX | The Fit eXperience |
| FIW | Fortin Iron Works |
| FIWE | Firestar Interactive Worldwide Entertainment |
| FIWS | Fidelity Institutional Wealth Services |
| FJA | Fruit Juice Australia |
| FJI | Forward Janesville Inc |
| FJN | Financial Job Network |
| FKC | Fukoku Kogyo Company |
| FKI | Federation of Korean Industries |
| FKSC | First Kentucky Securities Corporation |
| FKSCA | Florida Keys Scenic Corridor Alliance, Inc |
| FKZ | Fabrika Kablova Zajecar |
| FKZ | Ferreira Kennedy and Zwarts |
| FL | Franco Lubinsky (Sailplane Manufacturer) |
| FL | Furstentun Liechtenstein |
| FLCC | Fort Lyon Canal Company |
| FLECO | First Laguna Electric Cooperative, Inc. |
| FLF | Frigon Law Firm |
| FLFC | First Liberty Financial Corp |
| FLFL | Future Lifestyle Fashions Ltd |