The Dorset Horn Sheep Breeders' Association was established in 1891 for "the encouragement of the breeding of Dorset Horn Sheep at home and abroad and the maintenance of the purity of the breed".
The California Dorset Breeders' Association (CDBA) was founded in 1975 for the promotion of Dorset sheep in California to commercial producers, to purebred breeders, and to 4-H and FFA members for their projects. The Association is open to anyone interested in breeding Dorset sheep.
Stratasys Dorset Wins EBLEX Most Progressive Flock2009-Jun-05 Pedigree sheep producers James and Barbara Stratton, who farm at Charlton Mackerell in Somerset, have won the EBLEX Most Progressive Flock Award for the Dorset breed.