- American Morgan Horse Association (2)
- Ohio Morgan Horse Association
 - Offers stallion and Ohio farms listings, show information, youth news, and trivia games. - Morgan Horse Club of Texas
- Promoting the Morgan Horse in North Texas.
- The Lippitt Club, Inc. - Vermont
- Promotes the Lippitt Morgan horse through annual shows, auctions, trail rides, and clinics.
- American Model Morgan Horse Association (AMMHA)
- Purpose is to promote the showing of model Morgans and to encourage learning about the breed.
- Elysian Fields: The Justin Morgan Association for Retired Equines
- Care giving, educational, and research association established to preserve and improve the health, dignity, spirit, usefulness, comfort, and quality of life of aging horses, with special emphasis on the Morgan Horse.
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