| Business | Phone |
| Horton Automatics 100 Bessemer Rd #5, London N6E 1R2 | (519) 668-0830 |
| London Automatic Doors Ltd 101 Oxford St E, London N6A 1T2 | (519) 642-4700 |
| London Mat Industries Ltd 635 Newbold St, London N6E 2T8 | (519) 681-2980 |
| Ontario Door Controls Ltd 319 Neptune Cres, London N6M 1A9 | (519) 453-8911 |