| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Steady Glow | chestnut | f | 1992 | Halo | Steady Gaze | Thoroughbred | USA | |
| Steady Growth | c | Briartic | Crelita | Thoroughbred | Canada | |||
| Steady mare | f | 1743 | Steady | Partner mare | Thoroughbred | Great Britain | ||
| Stealaway | bay | f | 1963 | Olympia | Dashing By | Thoroughbred | USA | |
| 1960-4 Steamy Air | chestnut | f | 2002 | Atraf | Steamy Windows | Thoroughbred | Great Britain | |
| 1846-4 Steamy Lady | bay | f | 2002 | Lujain | Veuve Hoornaert | Thoroughbred | Great Britain | |
| Steamy Windows | bay | f | 1988 | Dominion | Bahamas Princess | Thoroughbred | Great Britain | |
| Stearine | chestnut | f | 1916 | St. Just | Sandaraque 2 | Thoroughbred | France | |
| 2739 Stebel | bay | c | 1953 | 1942 Sektor II | 911 Belladonna | Thoroughbred | Derkul Stud | |
| Stebelek | bay | c | 1973 | 3007-1 Bagrovyj | 3079 Skarbnitza | Thoroughbred | Streletsk Stud |