| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Umar Din | grey | c | 2020 | 981020033568924 | Gun Runner | Seattle Grey | Thoroughbred | Brereton C. Jones |
| Umbella | d.-bay | f | 1957 | Umberto | Step Rock | Thoroughbred | Ireland | |
| 2042 Umberto | bay | c | 1941 | Ut Majeur | Koruna | Thoroughbred | ||
| Umberto | bay | c | 1951 | Umidwar | Shello | Thoroughbred | Great Britain | |
| Umbo | bay | c | 2016 | 643093400014018 | 0761-5 Black Archer | 3468-5 Walker's Savannah | Thoroughbred | Mr Tverdohleb I.M. |
| 0744-2 Umbra | bay | f | 1993 | 643094100000221 | 3621-1 Stimul | 6436-1 Grafiya | Thoroughbred | APK "Kavkaz" |
| Umbrella | bay | f | 2003 | 0661-4 Menuet | 6865 Ariadna | Thoroughbred | a/f "Mangush" MMK im. Ilicha | |
| Umbrella Fella | bay | c | 1962 | Degage | Vital | Thoroughbred | USA | |
| Umbria | f | Mondrian | Ustina | Thoroughbred | Germany | |||
| Umbria | br. | f | 1997 | Stelvio | Upsala | Thoroughbred | Poland |