| Name | Country | Region | Address |
|---|---|---|---|
| Ostapenko Yana Yanovna | Russia | ||
| Ostapenko Yulya Nikolaevna | Russia | Новосибирская область | |
| Ostashevski Stud | Russia | ||
| Ostashevskii k.z. | |||
| Ostrikov Sergey Nikolaevich | Russia | Орловская область | |
| Ostrikova Tatyana Igorevna | Russia | Voronezh region | |
| Ostrova Olga Sergeevna | Russia | ||
| Ostroverkh Avgustin Georgievich | Russia | Krasnodar Region | |
| Ostrovskaya Anna Valeryevna | Russia | Moscow | |
| Ostrovskaya Elena Anatolyevna | Russia | Moscow region |