| Name | Country | Region | Address |
|---|---|---|---|
| Reznikova Ekaterina Gennadyevna | Russia | Krasnoyarsk region | |
| Rezvova Anna Sergeevna | Russia | Moscow region | |
| Rezvova Elena Rafailovna | Russia | ||
| RGBU DO "RDYuSSh po konnomu sportu" | Russia | Karachaevo-Cherkessia | |
| RGUDOD "DYUSSH po konnomu sportu" | Russia | ||
| RGUSP "Beiskoe" | |||
| Rhianon Farms, Inc. | USA | ||
| Rhineshire Farm LLC | USA | ||
| Rhinestone Bloodstock | Ireland | ||
| Rhonda Snow | Canada |