| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 4508-6 Sputnitsa Gryez | d.-bay | f | 2009 | не введен | 0318-3 Pervyj | 3546-5 Samara | Thoroughbred | Kolos Farm Uspensky dist. |
| Spy Novel | bay | f | 1999 | Broad Brush | Soviet Sojourn | Thoroughbred | USA | |
| Spy Song | br. | c | 1943 | Balladier | Mata Hari | Thoroughbred | USA | |
| Spy Well | c | Thoroughbred | ||||||
| 1733-7 Squadron A | grey | c | 2010 | Unbridled's Song | Peaks Mill | Thoroughbred | Patterson Bloodstock & Taylor Made Stallions Inc. | |
| Squall | bay | f | 1946 | Umidwar | Heavenly Wind | Thoroughbred | ||
| Squall Linda | d.-bay | f | 1996 | Summer Squall | Glimmer Glass | Thoroughbred | USA | |
| Squan Song | d.-bay | f | 1981 | Exceller | Foreign Missile | Thoroughbred | USA | |
| Square Angel | bay | f | 1970 | Quadrangle | Nangela | Thoroughbred | Canada | |
| Square Generation | chestnut | f | 1969 | Olden Times | Chavalon | Thoroughbred | USA |