St. Catharines Brands
- RBC Royal Bank of Canada (6)
- RE/MAX (2)
- Real Canadian Superstore (1)
- REAL STAR (7)
- REITMANS (2)
- Revera (1)
- Rexall (2)
- Ricki's (1)
- RICOH (1)
- Rogers (2)
- Rona (1)
- Roots Outlet Store (1)
- Royal LePage (1)
- Running Room (1)
- Rust Check (2)
- RW&CO. (1)
- Ryder (1)