| Business | Phone |
| Purifics Environmental Techs 1941 Mallard Rd, London N6H 5M1 | (519) 473-5788 |
| Betz Dearborn Inc 154 Napoleon Dr, London N5V 4B1 | (519) 659-2198 |
| Nature Pure Water 8374 Longwoods Rd, London N6P 1L5 | (519) 652-2822 |
| Phoenix Environmental Techs 81 Ponderosa Cres, London N6E 2L5 | (519) 680-7939 |
| U S Filter Canada 317 Adelaide St S #125, London N5Z 3L3 | (519) 668-6123 |
| W I P G 760 Little Simcoe St, London N5Z 1P4 | (519) 433-0631 |
| Wps 2000 Inc 1027 Clarke Rd #I, London N5V 3B1 | (519) 451-9882 |
| Classic Water Systems Inc 4093 Meadowbrook Dr #115, London N6L 1G2 | (519) 652-6500 |
| Culligan Water 555 Wellington Rd #4a, London N6C 4R3 | (519) 685-0445 |