| Name | Country | Region | Address |
|---|---|---|---|
| Uchkin Aleksey Aleksandrovich | Russia | Moscow | |
| Uchrezhdenie "Respublikansky tsentr Olimpyskoy podgotovki konnogo sporta i konevodstva" | Belarus | ||
| Udachina Evgeniya Vyacheslavovna | Russia | Moscow | |
| udalit | Russia | ||
| Udalov Vladimir Nikolaevich | Russia | Moscow region | |
| Udalov Ye.M. | Russia | ||
| Udalova Anna Nikolayevna | Russia | Nijni Novgorod region | |
| Udalova Marina Vasilevna | Russia | Moscow | |
| Udaltsov N.V. Voronezhskaya oblast | Russia | Voronezh region | |
| Udanov A.V. | Russia | Irkutsk region |