| Name | Country | Region | Address |
|---|---|---|---|
| Sitkina Ekaterina Pavlovna | Russia | Moscow | |
| Sitmukhanov Aybulat Amangeldyevich | Russia | Astrakhan region | |
| Sitnikova Evgeniya Nikolayevna | Russia | Тверская область | |
| Sitnikova Olga Alekseyevna | Russia | Voronezh region | |
| Sitnikova Yuliya Andreyevna | Russia | Voronezh region | |
| Sitnikowa Ekaterina Sergeewna | Russia | ||
| Sitnitskaya Olesya Viktorovna | Russia | Ulyanovsk region | |
| Siunova Valeriya Romanovna | Russia | Leningrad region | |
| Sivakova Tatyana Valeryevna | Russia | Smolensk region | |
| Sivanov Vasiliy Ryurikovich | Russia | S.-Peterburg |