Companies catalogue
- F E Raimondo DDS, Thorold
- FOUND Home Interior Consignment, Grimsby
- FOUNDATION WATERPROOFING by moe, Welland
- FOURTH AVENUE GAS BAR, St. Catharines
- Fabio's Pizza, St. Catharines
- Fairview Mall Dental Centre, St. Catharines
- Fast Stop Express, Lincoln
- Feast of Fields Vintners Cottage, St. Catharines
- Fenwick Berry Farm - Berry Fresh Farms, Pelham
- Fieguth Harry W, Niagara-on-the-Lake
- Fiorucci Chiropractic & Pedorthic Centre, St. Catharines
- First Aid Clinics of Canada, St. Catharines
- First Choice Haircutters, St. Catharines
- First Choice Haircutters, St. Catharines
- First Church Of Christ Scientist, St. Catharines
- First Reformed Church of Saint Catharines, St. Catharines
- FirstOntario Credit Union, St. Catharines
- FirstOntario Credit Union, St. Catharines
- FirstOntario Credit Union, St. Catharines
- Fitch Ratings - Canada, Toronto
- FleuraMetz Cash & Carry Toronto, Mississauga
- Fluance, Niagara Falls
- Fonthill Chiropractic Clinic & Assoc, Pelham
- Fonthill Dental, Pelham
- Fonthill Dental Clinic, St. Catharines
- Fonthill Masonic Temple, Pelham
- Food Truck Canada, Mississauga
- Foodies Anonymous Events and Catering, Guelph
- Fourfold Farm (Mark Ross and Sandra Moerschfelder), Centre Wellington
- Franczak Enterprises Canada Ltd., St. Catharines
- Fresh Niagara Mushrooms, St. Catharines
- Freshly Squeezed, St. Catharines
- Friends of Lincoln's History, Lincoln
- Friesen Woodheat Services, St. Catharines
- Frisia Flora Greenhouses, Lincoln
- Froese Farms, Niagara-on-the-Lake
- Fulton G a Dr, St. Catharines
- Fung C a Dr, St. Catharines