| Business | Phone |
| Advanced Telecommunications 335 Deerhurst Dr #1, Brampton L6T 5K3 | (905) 799-5799 |
| Cen-Comm Communications Inc 5 Blair Dr, Brampton L6T 2H4 | (905) 457-7152 |
| Scooley Mitchell Telecom 38 Gainsborough Rd, Brampton L6S 1X1 | (905) 793-8287 |
| Sentrex Turnkey Solutions 30 Hale Rd #1, Brampton L6W 4N9 | (905) 460-9321 |
| Sentrex Communication Systems 5 Blair Dr, Brampton L6T 2H4 | (905) 850-3929 |
| Symphony Telecom Inc 41 George St S, Brampton L6Y 2E1 | (905) 457-4300 |
| Carmal Network 23 Hollybush St, Brampton L6R 1A5 | (905) 792-7337 |
| City-Com Communications Inc 50 Van Kirk Dr #1, Brampton L7A 1C7 | (905) 846-7171 |