| Business | Phone |
| Aim Security Systems Inc 46 Michelle Dr, Woodbridge L4L 9B8 | (905) 265-8156 |
| Hsi Group Ltd 7600 Weston Rd, Woodbridge L4L 8B7 | (905) 856-7031 |
| Sesmar Security Inc 4300 Steeles Ave W #22, Woodbridge L4L 4C2 | (416) 747-0904 |
| Syl-Tech Security Systems 271 Jevlan Dr, Woodbridge L4L 8A4 | (905) 851-3227 |