| Name | Country | Region | Address |
|---|---|---|---|
| Syemyenovykh Andryey Ippolitovich | Russia | Udmurt Republic | |
| Syerik I.V. | Russia | Новгородская область | |
| Syeryebryakov N.A. | Russia | Omsk region | |
| Syeryedin V.V. g. Oryenburg | Russia | ||
| Syeryenko Irina Syergyeevna | Russia | ||
| Syeryezhina Natalya Viktorovna | Russia | ||
| Syktyvkarskii SHT | Russia | ||
| Syktywkar, RGU SDJuKSSch | Russia | Республика Коми | |
| Sylvia Bate (Germaniia) | |||
| Sylvia Howell | USA |