Here is a list of national dog-related clubs and organizations that may interest you:
Canadian Kennel Club – http://www.ckc.ca
The Canadian Kennel Club (CKC) is the primary registry body for purebred dogs in Canada and currently recognizes 175 breeds. As a non-profit organization, the CKC is dedicated to encouraging, guiding, and advancing the interests of purebred dogs and their responsible owners and breeders in Canada and promoting the knowledge and understanding of the benefits which dogs can bring to Canadian society.
Agility Association of Canada – http://aac.ca/
The AAC, founded in 1988, is committed to promoting inclusive, competitive dog agility at a local, regional, national and international level, for all handlers and dogs without regard to pedigree.
National Retriever Club of Canada – http://www.nrcc-canada.com/
The National Retriever Club of Canada has member clubs across Canada. It is through these clubs that a National Retriever Championship and a National Amateur Retriever Championship is hosted each year. These events are held under the Canadian Kennel Club Field Trial Rules and Regulations. Throughout the year, member clubs host their own Licensed Field Trials and/or Hunt Test Stakes.