Montana Suffolk Sheep Breeders Association - MSSBA is a nonprofit association of Suffolk Sheep Breeders in Montana. Founded in 1981 with the purpose to foster promote and develop the Suffolk breed and the sheep industry in general.

Suffolk Society of Australia - Web site representing breeders of Suffolks throughout Australia.

United Suffolk Sheep Association - Encouraging and supporting Suffolk sheep breeders of all ages in their efforts to produce positively identify and record and promote Suffolk sheep that are of benefit to the breed and the entire sheep industry.

White Suffolk Association - Contacts breed information newsletters and stud advertisements. Located in Australia.