| Business | Phone |
| Givens Engineering Inc 46 Firestone Blvd, London N5W 5L4 | (519) 453-9008 |
| Hi-Tech Controls 2469 Aviation Lane, London N5V 3Z9 | (519) 659-2309 |
| Screen Centre Sales 8 Scottsbury Pl, London N6P 1E5 | (519) 652-0028 |
| Sun Engineering 4026 Meadowbrook Dr #135, London N6L 1C8 | (519) 652-6653 |
| Triad Industries Inc 74 Charterhouse Cres, London N5W 5V5 | (519) 455-7855 |