- Family Medicine & General Practice Doctors, Wernersville - General Practitioner (GP), Physicians & Surgeons
- Family Services & Care, Wernersville
- Farms, Wernersville
- Federal Government, Wernersville
- Finance, Wernersville
- Financial Institutions, Wernersville
- Financial Planning Consultants, Wernersville
- Financial Services, Wernersville
- Fire Alarm Systems, Wernersville
- Fishing Tackle, Equipment & Supplies Stores, Wernersville - Lures, Rods, Reels, Baits, Poles & Fishing Gear
- Florists, Wernersville - Flower Shops
- Flowers & Plants, Wernersville
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- Food & Beverage Stores & Services, Wernersville
- Food & Beverages - Wholesale & Retail, Wernersville
- Food Services, Wernersville
- Foundations, Clubs, Associations, Etcetera, Wernersville
- Fruit & Vegetable Markets, Wholesale & Retail, Wernersville
- Full Service Breakfast Restaurants, Wernersville
- Funeral Information & Referral Services, Wernersville
- Funeral Planning Services, Wernersville
- Funeral Services, Crematory & Cemetery, Wernersville - Funeral Homes & Directors
- Furniture Repair, Wernersville
- Furniture Reupholstery & Repair, Wernersville
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