Blue Agave Ranch
- Overview of a ranch that breeds donkeys, mules, and papillon dogs. Located in Benson, Arizona.
- http://www.blueagaveranch.com/

American Mammoth Jackstock Registry (AMJR)
- The original Jack Stock Registry, established in 1888. Services, breed characteristics, archives, breeders, news, and related links.
- http://www.amjr.us/

Genesis Farms
- Breeders of saddle mules and performance donkeys. Ohio, USA.
- http://www.genesisfarmsjacks.com/

Magnolia Farm
- Located in Hayden, Alabama. Breeding miniature donkeys.
- http://www.magnoliafarmminiaturedonkeys.com/

Winterwind
- Breeder of miniature donkeys and colored angora goats. Also harvests mohair fleeces for handspinners. Minnesota, USA.
- http://www.winterwindfarm.com/

4F Farm
- Breeders of saddle-type mammoth jackstock and Missouri mules. Blairstown, Missouri, USA.
- http://www.feefifofarm.com/

SingleTree Farm
- Family operation which produces and trains high quality riding mules and donkeys. Located in southwestern Virginia.
- http://www.singletreemules.com/

Tex*Ass Miniatures
- Donkeys, miniatures, pets, equines, miniature donkeys, burros, mules, horses, located in Brenham, Texas and Durango, Colorado.
- http://www.texassminiatures.com/

The Alberta Donkey and Mule Club
- Lists the organization's goals, board of directors, and an email contact.
- http://www.westernrancher.com/ADMC.html

Minnesota Donkey and Mule Association
- Focuses on promoting donkeys and mules with an emphasis on having fun and catering to children. Contact information, membership application, event calendar, member directory, photos, and links.
- http://www.mndonkeyandmule.com/

Heart B Ranch
- Show quality mule and donkey ranch: longears and mammoth jackstock. Located in Emmett, Idaho.
- http://www.heart-b-ranch.com/

Virginia Draft Horse and Mule Association
- Formed in 1978 to organize and promote the draft horse, mule, and donkey industry in Virginia.
- http://www.vdhma.org/

Twin Springs Farm
- Mammoth Jack Stock for breeding - also, Black Angus cattle and Shetland sheep. Located in Avonmore, PA.
- http://sheepandcattle.com/

Kalara Arabians & ASSociates
- Breeder of Arabian horses, donkey and mules. Located in Maine, USA.
- http://www.kalara.com/