| Name | Country | Region | Address |
|---|---|---|---|
| Trebles Holford Farm Thoroughbreds | Great Britain | ||
| Trebunskikh Olga Viktorovna | Russia | Moscow | |
| Trefilova Yulya Igorevna | Russia | Moscow | |
| Tregubov Maksim Sergeyevich | Russia | Volgograd region | |
| Tregubova Yuliya Aleksandrovna | Russia | Moscow | |
| Tregubow W.A. | Russia | Владимирская область | |
| Trendepo "Trakennen Elita" | Russia | Ryazan region | |
| Trenev Sergey Nikolayevich | Russia | Ивановская область | |
| Trenkova Ksenya Alekseevna | Russia | ||
| Trepalova Ekaterina Aleksandrovna | Belarus |