| Business | Phone |
| Arda Distributing 546 Admiral Dr, London N5V 4L5 | (519) 455-0646 |
| Heat Cool Supply 219 Adelaide St S, London N5Z 3K7 | (519) 685-0188 |
| Heaters Controls & Sensors 60 Meg Dr #13, London N6E 3T6 | (519) 686-6095 |
| Ray-Tec Radiant Heaters Ltd 99 Chalet Cres, London N6K 3C5 | (519) 657-1010 |
| Rsr Wholesale 1111 Frances St, London N5W 2L9 | (519) 455-5343 |
| Enerzone Inc 22 Pegler St, London N5Z 2B5 | (519) 645-2411 |
| Diamond Supplies Ltd 738 King St, London N5W 2X3 | (519) 455-1010 |
| Engineered Air 60 Meg Dr, London N6E 3T6 | (519) 649-1700 |