| Business | Phone |
| A 1 Protection Svc 6760 Davand Dr, Mississauga L5T 2L9 | (905) 565-8621 |
| Aim Security Systems Inc 5196 Forestwalk Cir, Mississauga L4Z 4A3 | (905) 502-8288 |
| Alarm Plus 3928 Nightshade Lane, Mississauga L5N 7J4 | (905) 785-6466 |
| Alarmcontrol 4444 Eastgate Pky #21, Mississauga L4W 4T6 | (905) 629-9333 |
| Alarm Superstore 1868 Dundas St E, Mississauga L4X 1L9 | (905) 233-7470 |
| Alarm Superstore 1100 Burnhamthorpe Rd W #23, Mississauga L5C 4G4 | (905) 896-3347 |
| Alliance Security Svc 1515 Britannia Rd E #252, Mississauga L4W 4K1 | (416) 780-9442 |
| Alliance Security Systems 1515 Britannia Rd E, Mississauga L4W 4K1 | (905) 696-0616 |
| Amptech Security Ltd 7200 Tranmere Dr, Mississauga L5S 1L6 | (905) 673-0483 |
| B & B Alarms 1272 Sweetbirch Crt, Mississauga L5C 3R3 | (905) 272-5180 |
| Graham Alarm Monitoring Ltd 2570 Haines Rd #10, Mississauga L4Y 4A3 | (905) 897-8822 |
| Halliday Security Install Inc 225 Windy Oaks, Mississauga L5G 1Z7 | (905) 891-3026 |
| Hi-Tech Security Systems Inc 1310 Midway Blvd #26, Mississauga L5T 2K5 | (905) 677-7765 |
| K M Video & Security 5288 General Rd #5, Mississauga L4W 1Z8 | (905) 629-1446 |
| Kingsbridge Security Inc 943 Lakeshore Rd E #B, Mississauga L5E 1E3 | (905) 919-9711 |
| Kridan Security Inc 6677 Meadowvale Town Centre Ci, Mississauga L5N 2R5 | (905) 858-1558 |
| Lynden Security Systems 1020 Matheson Blvd E #3, Mississauga L4W 4J9 | (905) 273-3727 |
| Monitor Security Agency 2895 Derry Rd E #516, Mississauga L4T 1A6 | (905) 792-1444 |
| Pinnacle Security Systems 3280 Council Ring Rd, Mississauga L5L 1L6 | (905) 820-4833 |
| Bedrock Alarm Inc 299 Courtneypark Dr E, Mississauga L5T 2T6 | (905) 273-6363 |
| Speeding Cash 4350 Brandon Gate Dr, Mississauga L4T 3K4 | (905) 672-3856 |
| T & T Alarm Svc 578 Rideau Gate, Mississauga L5B 2W3 | (416) 769-1433 |
| Ultimate Security Systems Ltd 2948 Folkway Dr, Mississauga L5L 2B2 | (416) 463-9992 |
| Vip Security Alarms Inc 5214 Mississauga Rd, Mississauga L5M 4Z2 | (905) 542-1922 |
| X-10 Home Controls Inc 2820 Argentia Rd, Mississauga L5N 8G4 | (905) 826-4436 |
| Branley Security & Locksmiths 6495 Edenwood Dr, Mississauga L5N 3H2 | (905) 824-5703 |
| Cairn Control Systems Inc 3170 Plum Tree Cres, Mississauga L5N 4X3 | (905) 820-4332 |
| Canguard 6200 Dixie Rd #202, Mississauga L5T 2E1 | (905) 564-8640 |
| Castle Gate Alarms 394 Pinemeadow Ave, Mississauga L5B 2J9 | (905) 897-1810 |
| Chubb Security Systems 5201 Explorer Dr, Mississauga L4W 4H1 | (905) 629-2600 |
| Elite Security 130 Dundas St E #500, Mississauga L5A 3V8 | (905) 897-0310 |