| Business | Phone |
| Alarmes Preventive 10734 Av Alfred, Montreal-Nord H1G 5B1 | (514) 273-1685 |
| Installations Cable-Tek Inc 6000 Boul Henri-Bourassa E, Montreal-Nord H1G 2T6 | (514) 322-2151 |
| Smart Guard Systems De Securit 10222 Boul Saint-Michel, Montreal-Nord H1H 5H1 | (514) 381-1400 |
| Sos Surveillance Inc 10730 Av Alfred, Montreal-Nord H1G 5B1 | (514) 323-3974 |