American Kennel Club - AKC.org
AKC is the largest and second oldest purebred dog registry in the world. Founded on September 17, 1884, the AKC was formed as a "club of clubs" to promote the sport of purebred dogs and breeding for type and function.
Canadian Kennel Club - www.ckc.ca
The Canadian Kennel Club (CKC) is the primary registry body for purebred dogs in Canada and currently recognizes 174 breeds. As a non-profit organization, the CKC is dedicated to encouraging, guiding, and advancing the interests of purebred dogs.
United Kennel Club - UKCdogs.com
Established in 1898, the United Kennel Club is the largest all-breed performance-dog registry in the world, registering dogs from all 50 states and 25 foreign countries. UKC promotes the interest of owners, breeders and enthusiasts who work to balance beauty and working performance to produce happier, healthier dogs.