| Walmart Pharmacy, Georgetown - Rue Guelph, Services pharmaceutiques | Halton Hills |
| Walmart Pharmacy, Milton - Avenue Steeles Est, Services Pharmaceutiques | Milton |
| Walmart Pharmacy, Oakville - Boulevard Hays, Services pharmaceutiques | Oakville |
| WELL Health Diagnostic Centres, Cardiologie et radiologie | Milton |
| WELL Health Medical Centre, Clinique médicale sans rendez-vous | Oakville |
| Wellbrook Place East | Erin Mills |
| Wellbrook Place West | Mississauga |
| Wellmedica Oakville Town Centre Pharmacy, Services pharmaceutiques | Oakville |
| Wentworth-Halton X-Ray and Ultrasound, Oakville - Chemin Speers, Imagerie diagnostique | Oakville |
| Wentworth-Halton X-Ray and Ultrasound, Oakville - Chemin Old Bronte, Imagerie diagnostique | Oakville |
| White Oaks Pharmacy, Services Pharmaceutiques | Oakville |
| White Ribbon | Toronto |
| Winston Park Medical Centre, Clinique médicale sans rendez-vous | Oakville |
| World Education Services | Toronto |
| Wyecroft Pharmacy, Services Pharmaceutiques | Oakville |
| Wyndham Manor | Oakville |
