| Business | Phone |
| Messer Canada 297 Exeter Rd #21, London N6L 1G3 | (519) 652-1459 |
| Praxair 1910 Oxford St E, London N5V 2Z8 | (519) 451-7930 |
| Boc Gases 75 Bessemer Rd, London N6E 1P9 | (519) 686-2931 |
| Weldco 20 Towerline Pl, London N6E 2T1 | (519) 686-4150 |
| Contact Welding Supplies Ltd 4191 Perkins Rd #2, London N6L 1C2 | (519) 652-3353 |