| Business | Phone |
| Quality Fire Protection Ltd 190 Don Park Rd, Markham L3R 2V8 | (905) 940-8499 |
| Disano Sprinkler Design Ltd 7181 Woodbine Ave #103, Markham L3R 1A3 | (416) 743-6722 |
| Canadian Automatic Sprinkler 335 Renfrew Dr #302, Markham L3R 9S9 | (905) 477-2270 |
| Casa Ontario Region 335 Renfrew Dr, Markham L3R 9S9 | (905) 474-0266 |
| Disano Sprinkler Design 7181 Woodbine Ave, Markham L3R 1A3 | (905) 477-4474 |