American Friesian Association
Arabian Horse Association of Maine
Arabian Horse Association of Mass.
Arabian Horse Association of New England
Black Swamp Driving Club
Connecticut Quarter Horse Association
Eastern Region Andalusian Horse Club
Empire State Quarter Horse Association
Flatlanders Dressage & Combined Training Assoc.
Foundation of the Pure Spanish Horse Association
Granite State Appaloosa Association
Gypsy Cob & Drum Horse Association
Gypsy Horse Association
Gypsy Horse Registry of America, Inc.
International Friesian Show Horse Association
Lippitt Morgan Breeders Association
Maine Morgan Horse Club
Massachusetts Quarter Horse Association
New England Miniature Horse Society
New England Paint Horse Club
New England Region Carriage Association of America
New Hampshire Hunter Jumper Association
Northeast Fjord Horse Association
Northeast Friesian Horse Club
Ohio Arabian & All Breed Trail Society
Ohio Haflinger Association
Purebred Morab Horse Association
Quarter Pony Association
Rhode Island Arabian Horse Association
Silver Heels Riding Club
Southern New England Horsemen's Association
Vermont Quarter Horse Association
Western Reserve Carriage Association
World Class Miniature Horse Registry