| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Sydne | bay | f | 1987 | Oldenburger | Germany | |||
| Sydney | black | c | 2017 | Erserum | 2911 SokotRa 17 | Trakehner | Lebedeva Tatyana | |
| Syeda | f | 1972 | 3102 Slesch | Dunure V-4, hung | vengerskaya | |||
| Syent Emilon | chest(m b grey) | c | 2012 | 24 Highlander 5 | Mersi | Hannoveraner | Fedorova Olga Vladimirovna | |
| Syent Gyel | grey | f | 2006 | Sent Boj | Ganna | trakenenskaya pomes | DYUSSh | |
| Syezar | d.-bay | c | 2011 | Scandic | Zambyerina (Zamberina) | Westfalische | Gestut Dowator (RZOP KS i K) | |
| Sygar Ray Lennix 84 | bay | c | 1993 | Lord | Oregon | Holsteiner | Germany | |
| Syggi H 090501471 | chestnut | f | 1971 | Hartung H 09000746 | Synode (Zwilling) | Trakehner | ||
| 1668 Syjachat | d.bucksk. | f | 1972 | Akhal-Teke pureblood | ||||
| 2063 Syjagul | buckskin | f | 1977 | 685 Angar | 1668 Syjachat | Akhal-Teke pureblood |