| Business | Phone |
| Oakridge Environmental Ltd 380 Armour Rd #263, Peterborough K9H 7L7 | (705) 745-1181 |
| R & R Laboratories Ltd 160 Charlotte St, Peterborough K9J 2T8 | (705) 748-1506 |
| Terrapex Environmental Ltd 835 Water St, Peterborough K9H 3P1 | (705) 745-0087 |