| Horse | United Kingdom of Great Britain and Northern Ireland | The Highland Pony Society |
| Horse | United Kingdom of Great Britain and Northern Ireland | The Shetland Pony Stud-Book Society |
| Horse | United Kingdom of Great Britain and Northern Ireland | The Welsh Pony and Cob Society (WPCS) |
| Horse | United Kingdom of Great Britain and Northern Ireland | Weatherbys Main GSB NTR |
| Horse | United Kingdom of Great Britain and Northern Ireland | World Arabian Horse Organisation |
| Horse | United States of America | American Miniature Horse Association |
| Horse | United States of America | American Morgan Horse Association |
| Horse | United States of America | American Paint Horse Association |
| Horse | United States of America | American Quarter Horse Association (AQHA) |
| Horse | United States of America | American Saddlebred Horse Association |
| Horse | United States of America | Appaloosa Horse Club (ApHC) |
| Horse | United States of America | Belgian Draft Horse Corporation of America |
| Horse | United States of America | Kiger Mesteno Association |
| Horse | United States of America | Missouri Fox Trotting Horse Breed Association (MFTHBA) |
| Horse | United States of America | Paso Fino Horse Association |
| Horse | United States of America | Pony Of the Americas Club |
| Horse | United States of America | Racking Horse Breeders Association (RHBAA) |
| Horse | United States of America | Rocky Mountain Horse Association |
| Horse | United States of America | Tennessee Walking Horse Breeders and Exhibitors Association |
| Horse | Uruguay | Associacion Rurual del Uruquay |