| Business | Phone |
| Ontario Growers Supply 1540 Fanshawe Park Rd E, London N5X 4A3 | (519) 641-3992 |
| Plant Doctor 944 Oxford St E, London N5Y 3K2 | (519) 453-8885 |
| Urban Chronic Ltd 1711 Dundas St, London N5W 3E1 | (519) 453-3933 |
| Vantage Hydroponics 63 Clarke Rd #17, London N5W 5Y2 | (519) 451-4769 |
| Friendly Farmer 343 Richmond St, London N6A 3C2 | (519) 438-4446 |