| Abbreviation | Definition |
|---|---|
| FNGB | First Northern Capital Corporation |
| FNIN | Financial Industries Corporation |
| FNLC | First National Lincoln Company |
| FNLY | Finlay Enterprises, Inc. |
| FNSR | Finisar |
| FNSW | Farnsworth Bancorp, Inc. |
| FNTN | Financial Intranet, Inc. |
| FOBB | First Oak Book Bancshares, Inc. |
| FOBT | Four Oaks Bank & Trust |
| FOCL | Focal, Inc. |
| FOCS | FiberChem, Inc. |
| FOFN | Four Oaks FinCorp, Inc. |
| FOGD | FogDog, Inc. |
| FOKKY | Fokker Konk Nederlands Vlie |
| FONE | Focus Affiliates, Inc. |
| FONR | Fonar Corporation |
| FONX | Fonix Corporation of Delaware |
| FOOD | Fresh Foods, Inc. |
| FOODP | International Fast Food |
| FOOT | Foothill Independent Bancorp |