| worldguernseys.org | Guernsey Cattle Federation |
| studbook.co.za | South African Guernsey Cattle Breeders' Society |
| adsa.org | American Dairy Science Association |
| guernseycattle.com | English Guernsey Cattle Society |
| guernseycanada.ca | Canadian Guernsey Association |
| milkingshorthorn.com | American Milking Shorthorn Society |
| gelbvieh.org | American Gelbvieh Association |
| brahman.org | American Brahman Breeders Association, ABBA |
| usjersey.com | American Jersey Cattle Association / National All-Jersey Inc. |
| usayrshire.com | U.S. Ayrshire Breeders Association |
United States , Arizona , Scottsdale