| Business | Phone |
| Nps Wastewater Systems Ltd 1974 Spicer Rd #3, North Vancouver V7H 1A2 | (604) 924-1085 |
| Polcon Aeration Systems Inc 431 Mountain Hwy #3, North Vancouver V7J 2L1 | (604) 986-9414 |
| Sanitherm Engineering Ltd 431 Mountain Hwy #4, North Vancouver V7J 2L1 | (604) 986-9168 |