| FBI | Federal Bureau of Investigation | Washington , DC | See Web Site |
| Family Law | Rasmussen & Styers | San Diego, CA | 858 569-0206 |
| Faucets | El Cajon Plumbing & Heating Supply Co. | El Cajon, CA | 619 449-7300 |
| Fax Machines | Bomar Business Systems | La Mesa, CA | 619 433-8003 |
| Finance | Rockwell Finanical Group | Winter Park , FL | 877 500-3573 |
| Fire Damage | S&J Builders & Restoration Services, Inc. | San Diego, County, CA | 866 752-8453 |
| Fish Ponds | KOI-KOI Living Jewels | El Cajon, CA | 619 441-9275 |
| Fishing | Lakeside Bait and Tackle | Lakeside, CA | 619 443-3859 |
| Fishing | Lake Cuyamaca Campgrounds | Cuyamaca, CA | 877 581-9904 |
| Fitness Centers | Being-Fit Fitness Centers | San Diego, CA | 858 483-9294 |
| Flight Charters | Private Business Jets | Boston, MA | 800 641-5387 |
| Flywheel Surfacing | Kenyon Machine, Inc. | San Diego, CA | 858 270-2610 |
| Food Products | Kind Care Medical Center | Southern California, CA | 866 374-3259 |
| Food Service | Sage Catering | La Mesa, CA | 619 698-2870 |
| Foot Pain | Z-Coil Footwear | San Diego, CA | 619 291-5938 |
| Footwear | Z-Coil Footwear | San Diego, CA | 619 291-5938 |
| Foreign Auto Parts | Vee Parts and Accessories | El Cajon, CA | 888 258-5524 |
| Foreign Auto Repair | Hans Meyer's Auto Werkstatt | San Diego, CA | 619 284-6040 |
| Free Auto Glass Quotes | Infinity Auto Glass | San Diego Metro, CA | 877 346-5888 |
| Free Play Wind Up Products | El Cajon Gun Exchange | El Cajon, CA | 619 579-5152 |
| Freezers | Refrigeration Engineering Co. | El Cajon, CA | 619 239-6113 |
| Fuel Injection | Omega Fuel Injection | El Cajon, CA | 619 448-3295 |
| Fuel Injection Pumps | Omega Fuel Injection | El Cajon, CA | 619 448-3295 |
| Full Service Auto | Smog or Tune | Lemon Grove, CA | 619 469-5492 |
| Funerals | Glen Abbey Memorial Park | Bonita, CA | 877 442-2551 |
| Furniture | San Diego Upholstery | San Diego, CA | 619 286-0713 |