| Name | Country | Region | Address |
|---|---|---|---|
| RMJ Stables, LLC | USA | ||
| RMKSK "Dzhigit" | Russia | Dagestan | |
| RO "Kazanskiy zhenskiy monastyr" | Russia | ||
| RO "Obitel Trinikolskaia", Mos | Russia | Moscow region | |
| Robert Clements & Irene Clements | USA | ||
| Robert Clements & Irene Clements & Javier Martinez | USA | ||
| Robert Estill Courtney Jr. | USA | ||
| Robert Eylmann | Germany | ||
| Robert Schaedle | USA | ||
| Robert True | USA |