| Business | Phone |
| Agis Special Security 186 King St, London N6A 1C7 | (519) 679-2895 |
| Armour-Guard 2276 Wharncliffe Rd S, London N6P 1L1 | (519) 652-1955 |
| Guardian Control Systems Inc 189 Hyman St, London N6A 1N4 | (519) 433-8905 |
| Home Audio Design & Build 1060 Oxford St E, London N5Y 3L3 | (519) 785-0498 |
| Homematix 1055 Sarnia Rd, London N6H 5J9 | (519) 657-8019 |
| Laminating Technologies 1615 N Routledge Pk #20, London N6H 5L6 | (519) 471-6191 |
| Mirtech International Security 649 Consortium Crt, London N6E 2S8 | (519) 672-4146 |
| Bolt Security Systems Inc 346 Wharncliffe Rd S, London N6J 2L8 | (519) 679-2658 |
| Pope Security Of London Inc 241 Colborne St, London N6B 2S4 | (519) 434-8848 |
| Pro-Install Multisystems Inc 582 Newbold St, London N6E 2W9 | (519) 659-9100 |