| Name | Country | Region | Address |
|---|---|---|---|
| Udovenko Aleksey Vasilyevich | Russia | Мурманская область | |
| Udovichenko Mariya Aleksandrovna | Russia | ||
| Udyanskaya Elena Nikolayevna | Russia | Stavropol region | |
| Uesdnaja Natalja Nikolaewna | Russia | ||
| UFHS AG | Germany | ||
| UFHS - United Federation of Horses& Sports AG | Germany | ||
| Ufimsk Stud | Russia | Bashkortostan | |
| Ufimskaia GZK | Russia | Bashkortostan | |
| Ufimskij ks | Russia | Bashkortostan | |
| Ufimskiy k.z. | Russia | Bashkortostan |