| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| SIANDRA GUNMANS SYMPHONY | Mare | BAY | 268333 | 17/10/2024 | Stud Book | Eligible |
| SIANDRA JASPER | Gelding | CHESTNUT | 232385 | 17/11/2011 | Stud Book | Eligible |
| SIANDRA MIRACLE | Mare | BROWN | 232386 | 25/11/2011 | Stud Book | Eligible |
| SIANI | Mare | CHESTNUT | 32070 | 01/01/1966 | Stud Book | Deceased |
| SIANI GLOW | Mare | CHESTNUT | 47613 | 01/01/1973 | Stud Book | Not Eligible |
| SIANN | Mare | CHESTNUT | 21333 | Stud Book | Deceased | |
| SIANNA | Mare | CHESTNUT | F27488 | 15/08/1980 | Foal Recorded | Not Eligible |
| SIANS BID | Mare | BROWN | B2-188530 | 16/10/1989 | Breeding Purposes Only - Second Cross | Not Eligible |
| SIARA | Mare | CHESTNUT | 74018 | 04/09/1981 | Stud Book | Not Eligible |
| SIB | Mare | GREY | 58839 | Stud Book | Deceased | |
| SIBBIE - HSH | Mare | BAY | 11588 | Stud Book | Deceased | |
| SIBBIE II - HSH | Mare | CHESTNUT | F9944 | 26/12/1976 | Foal Recorded | Not Eligible |
| SIBELIA | Mare | CHESTNUT | 18213 | 02/11/1970 | Stud Book | Deceased |
| SIBLEYS MISCHIEF | Mare | BROWN | 77969 | 02/11/1982 | Stud Book | Not Eligible |
| SIBON | Stallion | BLACK | 5273 | 01/02/1969 | Stud Book | Deceased |
| SID | Gelding | BAY | 10265 | Stud Book | Deceased | |
| SIDCUP AMANDA | Mare | GREY | 47583 | 02/12/1972 | Stud Book | Not Eligible |
| SIDE HUSTLE | Gelding | BAY | C1-265941 | 01/11/2019 | First Cross | Not Eligible |
| SIDE KICK | Gelding | CHESTNUT | 75179 | 01/10/1981 | Stud Book | Not Eligible |
| SIDEBOTTOM SADIE | Mare | CHESTNUT | 24518 | Stud Book | Not Eligible | |
| SIDELINE | Mare | BAY | 22246 | 01/11/1967 | Stud Book | Deceased |
| SIDER ROCK | Gelding | BROWN | 24087 | 16/10/1970 | Stud Book | Deceased |
| SIDESHOW | Stallion | BAY | F31475 | 15/05/1982 | Foal Recorded | Not Eligible |
| SIDNELLS DUKE | Gelding | BAY | 21235 | Stud Book | Deceased | |
| SIEGEL MILLIE | Mare | BAY | C1-235409 | 14/12/2006 | First Cross | Not Eligible |
| SIEMERS JUDY | Mare | BAY | 20591 | Stud Book | Deceased | |
| SIENA BOY | Gelding | BROWN | 15575 | 01/01/1966 | Stud Book | Deceased |
| SIENNA ABSTRACT ART | Stallion | CHESTNUT/PIED | C2-233322 | 30/11/2013 | Second Cross | Not Eligible |
| SIENNA ERICCA | Mare | BROWN | C1-179623 | 23/10/2002 | First Cross | Not Eligible |
| SIENNA EXKLUSIVE | Mare | BROWN/BLACK | C1-174767 | 14/10/2002 | First Cross | Not Eligible |
| SIENNAS SPINNER | Mare | BROWN | 272066 | 24/11/2022 | Stud Book | Eligible |
| SIERRA MELENIE | Mare | BLACK | 30146 | 04/11/1971 | Stud Book | Deceased |
| SIERRA STOCKMAN - HSH | Stallion | BROWN/BLACK | 267629 | 07/10/2023 | Stud Book | Eligible |
| SIERRA TAMARA | Mare | GREY | 41100 | 01/01/1970 | Stud Book | Deceased |
| SIESTA | Mare | BAY | 254 | 01/08/1964 | Stud Book | Deceased |
| SIESTA CHOCOLATE TIGER | Stallion | BAY | F15995 | 12/12/1978 | Foal Recorded | Not Eligible |
| SIESTA STAR | Gelding | GREY | 64457 | 22/08/1975 | Stud Book | Not Eligible |
| SIGMA ALIMONY | Mare | BAY/BROWN | F24080 | 04/09/1979 | Foal Recorded | Not Eligible |
| SIGMA APHRODITE - HSH | Mare | CHESTNUT | 50596 | 15/09/1976 | Stud Book | Deceased |
| SIGMA ARIADNE - HSH | Mare | BLACK | 7080 | 01/08/1960 | Stud Book | Deceased |
| SIGMA ARUS | Mare | CHESTNUT | 76341 | 12/09/1984 | Stud Book | Deceased |
| SIGMA BIG RED | Mare | CHESTNUT | 7084 | Stud Book | Deceased | |
| SIGMA BLANCHE | Mare | CHESTNUT | 130324 | 25/09/1992 | Stud Book | Not Eligible |
| SIGMA BLUSH | Mare | CHESTNUT | 118451 | 09/10/1989 | Stud Book | Deceased |
| SIGMA BOLINGBROKE | Gelding | BAY | 18316 | Stud Book | Deceased | |
| SIGMA BUCOLIQUE | Mare | BAY | 50597 | 30/08/1975 | Stud Book | Deceased |
| SIGMA CABOODLE | Stallion | CHESTNUT | F19327 | 26/10/1978 | Foal Recorded | Not Eligible |
| SIGMA CADDIE | Mare | BAY | 76342 | 07/10/1983 | Stud Book | Deceased |
| SIGMA CASTLE PRINCESS - HSH | Mare | CHESTNUT | 9928 | 03/08/1967 | Stud Book | Deceased |
| SIGMA CATASTROPHY | Mare | CHESTNUT | 76345 | 22/08/1984 | Stud Book | Deceased |
| SIGMA CECILIA | Mare | CHESTNUT | 57467 | 12/10/1976 | Stud Book | Not Eligible |
| SIGMA CEDUNA | Mare | BROWN | 31167 | 01/08/1972 | Stud Book | Deceased |
| SIGMA CELIBATE | Stallion | CHESTNUT | F19325 | 09/09/1978 | Foal Recorded | Deceased |
| SIGMA CHOICE AROMA | Mare | CHESTNUT | 76346 | 01/01/1971 | Stud Book | Deceased |
| SIGMA CHRISTINE | Mare | BAY | 5883 | Stud Book | Deceased | |
| SIGMA CRACKERJACK | Stallion | CHESTNUT | 74819 | 29/09/1982 | Stud Book | Deceased |
| SIGMA CRAYBAIT | Stallion | CHESTNUT | F13972 | 21/09/1977 | Foal Recorded | Not Eligible |
| SIGMA DASH | Mare | BAY | 50602 | 03/10/1977 | Stud Book | Deceased |
| SIGMA DUDLEY | Gelding | CHESTNUT | 57468 | 13/10/1977 | Stud Book | Not Eligible |
| SIGMA ECSTACY | Mare | BROWN | 7083 | Stud Book | Deceased | |
| SIGMA ECU DE FRANCE | Mare | BROWN | 76347 | 10/11/1977 | Stud Book | Deceased |
| SIGMA ELLE | Mare | BAY | 130332 | 10/06/1992 | Stud Book | Deceased |
| SIGMA EURIDICE - HSH | Mare | CHESTNUT | 50601 | 02/10/1975 | Stud Book | Deceased |
| SIGMA GOLDIE | Mare | CHESTNUT | 31168 | 01/01/1972 | Stud Book | Deceased |
| SIGMA HOTSPUR | Gelding | BAY | 17234 | 01/01/1970 | Stud Book | Deceased |
| SIGMA JILLEROO | Mare | CHESTNUT | 57465 | 07/09/1978 | Stud Book | Not Eligible |
| SIGMA KONGO LADY | Mare | BAY | 7082 | 26/11/1966 | Stud Book | Deceased |
| SIGMA LAUTOKA | Gelding | BROWN | 58406 | 22/10/1978 | Stud Book | Not Eligible |
| SIGMA MAINTENANCE | Mare | BROWN | 7081 | Stud Book | Deceased | |
| SIGMA MALLEE GOSSIP | Mare | CHESTNUT | 76340 | 06/10/1984 | Stud Book | Not Eligible |
| SIGMA MANSANA | Mare | BROWN | 126752 | 15/11/1989 | Stud Book | Not Eligible |
| SIGMA MEDEA - HSH | Mare | CHESTNUT | F19324 | 30/09/1978 | Foal Recorded | Not Eligible |
| SIGMA MERRYLEGS | Mare | BAY | F32978 | 12/10/1981 | Foal Recorded | Not Eligible |
| SIGMA MYSTIQUE | Mare | BAY | 50598 | Stud Book | Not Eligible | |
| SIGMA NO 15 | Mare | BROWN | 76348 | 01/08/1973 | Stud Book | Not Eligible |
| SIGMA PHYSICAL - HSH | Mare | CHESTNUT | 76343 | 03/09/1982 | Stud Book | Deceased |
| SIGMA RAMESES - HSH | Gelding | CHESTNUT | 68060 | 28/11/1979 | Stud Book | Not Eligible |
| SIGMA RASTUS | Gelding | CHESTNUT | 31169 | 01/01/1971 | Stud Book | Deceased |
| SIGMA ROMANY | Mare | CHESTNUT | 76344 | 15/09/1980 | Stud Book | Deceased |
| SIGMA ROMRIC | Mare | BAY | 50599 | Stud Book | Not Eligible | |
| SIGMA SAVOIR FAIRE | Mare | CHESTNUT | 126753 | 28/09/1989 | Stud Book | Not Eligible |
| SIGMA SCARLET | Mare | CHESTNUT | 134842 | 09/09/1995 | Stud Book | Not Eligible |
| SIGMA SEDUCTION | Mare | BAY | F24079 | 23/09/1979 | Foal Recorded | Not Eligible |
| SIGMA SHANT TELL | Mare | CHESTNUT | 50600 | 17/09/1972 | Stud Book | Deceased |
| SIGMA SODA | Stallion | CHESTNUT | F7599 | 01/10/1976 | Foal Recorded | Not Eligible |
| SIGMA SPINIFEX | Mare | CHESTNUT | 33605 | Stud Book | Deceased | |
| SIGMA STALLONE | Stallion | CHESTNUT | F44142 | 16/12/1987 | Foal Recorded | Not Eligible |
| SIGMA SUICIDE | Mare | BAY | 5884 | Stud Book | Deceased | |
| SIGMA SWIFT | Mare | CHESTNUT | 104922 | 02/12/1985 | Stud Book | Deceased |
| SIGMA TABU | Mare | CHESTNUT | F24078 | 30/10/1979 | Foal Recorded | Not Eligible |
| SIGMA TOBRUK | Stallion | BAY | F24735 | 01/09/1979 | Foal Recorded | Not Eligible |
| SIGMA TROLITE | Gelding | CHESTNUT | 45083 | 01/09/1974 | Stud Book | Not Eligible |
| SIGMA VALINA - HSH | Mare | BAY | 193452 | 08/10/1991 | Stud Book | Eligible |
| SIGMA VENITE | Mare | CHESTNUT | 68059 | 02/09/1980 | Stud Book | Deceased |
| SIGMA VINEGAR | Mare | BAY | 57466 | 10/11/1976 | Stud Book | Not Eligible |
| SIGMA VITESSE | Mare | CHESTNUT | 58405 | 24/08/1978 | Stud Book | Deceased |
| SIGMA VOGUE - HSH | Mare | BAY | 130323 | 16/11/1994 | Stud Book | Not Eligible |
| SIGMA WAITRESS - HSH | Mare | CHESTNUT | 126751 | 06/10/1992 | Stud Book | Deceased |
| SIGMA WALLACE | Stallion | CHESTNUT | 130327 | 29/08/1998 | Stud Book | Not Eligible |
| SIGNAL | Gelding | BLACK | 30649 | 31/03/1967 | Stud Book | Deceased |