| Business | Phone |
| Across Canada Mobile Comm 90 Nolan Crt #36, Markham L3R 4L9 | (905) 475-6235 |
| Go Wireless Inc 95 Royal Crest Crt #7, Markham L3R 9X5 | (905) 940-8750 |
| Motorola Canada Ltd 8133 Warden Ave, Markham L6G 1B3 | (905) 948-5200 |
| Travers Communications 505 Hood Rd, Markham L3R 5V6 | (905) 940-0684 |
| Dhw Communications 155 Mcintosh Dr #10, Markham L3R 0N6 | (905) 479-6257 |