| Business | Phone |
| Kaycan Limited 325 Hale St, London N5W 1G3 | (519) 457-2998 |
| Ljs Sales 15 Marbenor Cres, London N5W 1T4 | (519) 451-6037 |
| Vytec Corp 25 Midpark Cres, London N6N 1A9 | (519) 681-4080 |
| Boncor Building Products Inc 657 Wilton Grove Rd, London N6N 1N7 | (519) 681-0557 |
| Boncor Building Products Inc 649 Wilton Grove Rd, London N6N 1N7 | (519) 668-6632 |
| Gentek Building Products Ltd 961 Pond Mills Rd, London N6N 1C3 | (519) 681-2870 |