| Business | Phone |
| Gordon Robertson & Assoc 55 Thorny Brae Dr, Thornhill L3T 3G5 | (905) 764-8485 |
| Leo Pharma Inc 123 Commerce Valley Dr E #400, Thornhill L3T 7W8 | (905) 886-9822 |
| Solvay Pharma Inc 145 West Beaver Creek, Thornhill | (416) 444-6873 |
| Galderma Canada Inc 105 Commerce Valley Dr W #20, Thornhill L3T 7W3 | (905) 762-2500 |