Centre Canin Vallée du Richelieu

Has three private dog parks available to members (cost $100 a year for unlimited access) that allows you to exercise a reactive dog. Also an agility course. They offer lots of classes and daycare for socialization. Boarding and training as well.
Edited in 2021: Cost is now $150 per year. And with more people using the parks, it is getting harder to book spots.
Update: It is more expensive, but they have added an online reservation system which works well and the parks seem to be more available than they were in 2019.

They have helpful staff and quite a selection for everything related to your pet. Lots of services and the dog parks, especially the 'Welsh' are very good. Highly recommended.

with the renovations in the main office..very nice dog friendly, staff are knowledgable and always welcoming our dog Tyson. Love this place!

Great place to take dog training courses or buy high-end dog foods and natural treats harnesses and leashes or have your dog stay while you're gone it's a huge facility and must be seen very knowledgeable staff