| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| SUFFOLK VALE VERY FUNNY | Mare | BAY | 36588 | Stud Book | Not Eligible | |
| SUFFOLKS QUEENIE | Mare | CHESTNUT | 20919 | Stud Book | Deceased | |
| SUFFRAGETTE | Mare | BROWN/BLACK | 237852 | 04/10/2013 | Stud Book | Not Eligible |
| SUGAR & SPICE | Mare | CHESTNUT | 1855 | 15/10/1958 | Stud Book | Deceased |
| SUGAR AND SPICE | Mare | BAY | 24372 | Stud Book | Deceased | |
| SUGAR BABE | Mare | BAY | 29298 | 29/11/1970 | Stud Book | Deceased |
| SUGAR BELL | Mare | CHESTNUT | 7461 | Stud Book | Deceased | |
| SUGAR BID | Stallion | BAY | F21481 | 13/09/1979 | Foal Recorded | Not Eligible |
| SUGAR BOOM BOOM | Mare | BLACK | C1-246427 | 27/11/2015 | First Cross | Eligible |
| SUGAR CANE | Mare | BROWN | 4379 | Stud Book | Deceased | |
| SUGAR CHARLOTTE | Mare | BROWN | C1-257642 | 11/10/2018 | First Cross | Eligible |
| SUGAR DADDYS SENSATION | Mare | BAY | C1-196122 | 28/08/2008 | First Cross | Not Eligible |
| SUGAR DECK | Mare | CHESTNUT | C1-141313 | 02/03/1998 | First Cross | Not Eligible |
| SUGAR DELL | Mare | BAY | 56271 | 30/10/1976 | Stud Book | Not Eligible |
| SUGAR DUST | Mare | CHESTNUT/PIED | C2-268158 | 04/11/2023 | Second Cross | Eligible |
| SUGAR FOOT | Mare | BAY | 10764 | Stud Book | Deceased | |
| SUGAR FOOT LADY | Mare | CHESTNUT | 46550 | 23/09/1976 | Stud Book | Not Eligible |
| SUGAR GIRL | Mare | BAY | 22547 | Stud Book | Deceased | |
| SUGAR GLIDER | Mare | BROWN | F39409 | 03/09/1984 | Foal Recorded | Not Eligible |
| SUGAR GUM DONNA | Mare | GREY | 18491 | Stud Book | Deceased | |
| SUGAR GUM HARLEM | Gelding | BAY | 21286 | 15/09/1969 | Stud Book | Deceased |
| SUGAR LADY | Mare | BAY | 52770 | Stud Book | Not Eligible | |
| SUGAR LAKE | Mare | CHESTNUT | 36119 | 01/01/1972 | Stud Book | Deceased |
| SUGAR LEA SUE | Mare | BAY | 53212 | 01/10/1977 | Stud Book | Not Eligible |
| SUGAR LOAF | Mare | BAY | 13829 | Stud Book | Deceased | |
| SUGAR LOAF DIMITY | Mare | CHESTNUT | 48072 | 19/10/1977 | Stud Book | Not Eligible |
| SUGAR LOAF GOLDIE | Mare | CHESTNUT | 48071 | Stud Book | Deceased | |
| SUGAR LOU | Mare | GREY | 20732 | Stud Book | Deceased | |
| SUGAR LYN | Mare | PALOMINO | 37812 | Stud Book | Not Eligible | |
| SUGAR LYNX | Mare | BAY | 118308 | 22/10/1988 | Stud Book | Not Eligible |
| SUGAR MIST | Mare | BLACK/GREY | F10077 | 21/08/1977 | Foal Recorded | Not Eligible |
| SUGAR OAK | Mare | CHESTNUT | F117701 | 16/10/1990 | Foal Recorded | Not Eligible |
| SUGAR OF ACRES | Mare | BAY | C2-242859 | 16/11/2011 | Second Cross | Not Eligible |
| SUGAR PLUM FAIRY | Mare | CHESTNUT | 29126 | 04/10/1972 | Stud Book | Deceased |
| SUGAR RAE - HSH | Mare | BROWN | 75172 | 06/11/1981 | Stud Book | Deceased |
| SUGAR REY | Mare | CHESTNUT | 47381 | 15/08/1972 | Stud Book | Deceased |
| SUGAR SPECKLES | Mare | CHESTNUT | 47368 | Stud Book | Not Eligible | |
| SUGAR SUSIE | Mare | BROWN | 35028 | 01/08/1965 | Stud Book | Deceased |
| SUGAR TIME | Mare | BAY | 3435 | Stud Book | Deceased | |
| SUGARAMA | Mare | BAY | 76380 | 25/01/1978 | Stud Book | Not Eligible |
| SUGARBAG ABBA | Mare | GREY | 80742 | 01/08/1987 | Stud Book | Not Eligible |
| SUGARBAG BUTTER | Mare | DUN | 170501 | 07/04/1997 | Stud Book | Not Eligible |
| SUGARBAG DABBA | Gelding | GREY | 136632 | 11/08/1991 | Stud Book | Not Eligible |
| SUGARBAG DAINTY | Mare | BROWN | 80743 | 01/08/1984 | Stud Book | Not Eligible |
| SUGARBAG FLASH | Gelding | BAY | 136633 | 10/01/1993 | Stud Book | Deceased |
| SUGARBAG GWEN | Mare | BAY/BROWN | 80745 | 01/08/1982 | Stud Book | Not Eligible |
| SUGARBAG ICE | Mare | GREY | 136634 | 01/09/1992 | Stud Book | Not Eligible |
| SUGARBAG MISCHIEF | Mare | BROWN | 80746 | 01/08/1991 | Stud Book | Not Eligible |
| SUGARBAG MISS | Mare | ROAN | 146373 | 25/03/1992 | Stud Book | Not Eligible |
| SUGARBAG ROUGER | Gelding | GREY | 184336 | 16/09/1998 | Stud Book | Not Eligible |
| SUGARBAG TINKERBELL | Mare | BAY | 80741 | 01/08/1985 | Stud Book | Not Eligible |
| SUGARBAG YUCCA | Mare | BROWN/TAFFY | 80740 | 01/08/1987 | Stud Book | Not Eligible |
| SUGARETTE BARS | Stallion | BAY | 48245 | Stud Book | Not Eligible | |
| SUGARFOOT KID | Stallion | CHESTNUT | 44695 | 07/01/1974 | Stud Book | Not Eligible |
| SUGARGUM MATILDA | Mare | BAY/GREY | R-265001 | 07/10/2021 | Base Registry | Eligible |
| SUGARLOAF BINDI - HSH | Mare | BAY | 180402 | 21/09/2006 | Stud Book | Eligible |
| SUGARLOAF BOO | Mare | BROWN | 228995 | 20/09/2011 | Stud Book | Eligible |
| SUGARLOAF CRICKET - HSH | Mare | BAY | 180403 | 31/10/2003 | Stud Book | Eligible |
| SUGARLOAF DEREK | Gelding | BAY | 63752 | 12/11/1978 | Stud Book | Deceased |
| SUGARLOAF JAKE | Stallion | BAY | F23925 | 01/11/1979 | Foal Recorded | Deceased |
| SUGARLOAF MOUSE | Mare | BAY | 170387 | 29/08/2000 | Stud Book | Eligible |
| SUGARLOAF PIXIE | Mare | BROWN | 191510 | 19/08/2009 | Stud Book | Eligible |
| SUGARLOAF POPPY - HSH | Mare | BAY/BROWN | 264826 | 05/09/2023 | Stud Book | Eligible |
| SUGARLOAF ROSIE | Mare | BAY/BROWN | 189124 | 09/09/1992 | Stud Book | Eligible |
| SUGARLOAF SPOOK | Mare | BROWN | 233966 | 26/09/2013 | Stud Book | Eligible |
| SUGARLOAF WOODY | Gelding | BAY | 170388 | 30/08/2001 | Stud Book | Eligible |
| SUGARPLUM | Mare | GREY | 29026 | 27/11/1972 | Stud Book | Not Eligible |
| SUGARS MISS PRIM | Mare | BROWN | 31124 | Stud Book | Not Eligible | |
| SUIHAN | Mare | DUN | 24402 | Stud Book | Not Eligible | |
| SUISGILL | Mare | GREY | 14108 | 22/10/1966 | Stud Book | Deceased |
| SUJAIN | Mare | BROWN | 40913 | 26/09/1970 | Stud Book | Deceased |
| SUKARAL DISCO DANCER | Mare | GREY | F22944 | 22/09/1980 | Foal Recorded | Not Eligible |
| SUKTANKA PARK PRIME EIDOLON | Gelding | BAY | C2-148735 | 10/08/1999 | Second Cross | Not Eligible |
| SUKTANKA PARK SUNGEITA | Mare | CHESTNUT | C2-151388 | 17/11/2001 | Second Cross | Eligible |
| SULBY PARK SUPERMAN | Gelding | PALOMINO | 105352 | 08/10/1984 | Stud Book | Not Eligible |
| SULDESTAN AMI DUNDEE | Mare | CHESTNUT | 73479 | 24/10/1983 | Stud Book | Not Eligible |
| SULDESTAN AUREOLE SULTAN | Gelding | PALOMINO | 69020 | 09/11/1974 | Stud Book | Not Eligible |
| SULDESTAN LUCANO | Stallion | CHESTNUT | F39737 | 12/10/1984 | Foal Recorded | Not Eligible |
| SULDESTAN MONIQUE AMORE | Mare | CHESTNUT | 53862 | 04/09/1975 | Stud Book | Not Eligible |
| SULDESTAN PAQUITA HONEY | Mare | PALOMINO | 69019 | 28/08/1980 | Stud Book | Not Eligible |
| SULLIES DELTA DECK | Mare | CHESTNUT | 69056 | 03/01/1982 | Stud Book | Not Eligible |
| SULLIES FANCY | Mare | BAY | 68203 | 17/11/1978 | Stud Book | Not Eligible |
| SULLIES FIRE PISTOL | Mare | BAY | F40020 | 19/11/1982 | Foal Recorded | Not Eligible |
| SULLIES MINGOS PISTOL | Mare | BAY | F40019 | 30/12/1982 | Foal Recorded | Not Eligible |
| SULLIES STAR PISTOL | Mare | BAY/BROWN | 69057 | 07/12/1981 | Stud Book | Not Eligible |
| SULLIVAN BOY | Gelding | BROWN | 59946 | 07/09/1975 | Stud Book | Not Eligible |
| SULLIVANS JODY | Mare | BLACK | 20174 | Stud Book | Deceased | |
| SULLY BRAE NEON - HSH | Gelding | BAY | F13810 | 24/01/1978 | Foal Recorded | Not Eligible |
| SULLYDALE MISS | Mare | BAY | 77477 | 14/09/1985 | Stud Book | Deceased |
| SULLYS INCA GOLD | Gelding | CHESTNUT | 63935 | 01/01/1976 | Stud Book | Not Eligible |
| SULO ABBEY - HSH | Gelding | BAY | C2-177399 | 20/12/2004 | Second Cross | Deceased |
| SULTAN - HSH | Stallion | BLACK | 146 | 06/08/1969 | Stud Book | Deceased |
| SULTAN CHIEF | Gelding | BLACK | 23931 | 29/11/1969 | Stud Book | Deceased |
| SULTAN GASTIN | Gelding | BAY | 58934 | 24/08/1977 | Stud Book | Not Eligible |
| SULTAN OF EDEN | Stallion | BROWN/BLACK | 76762 | 24/10/1986 | Stud Book | Not Eligible |
| SULTAN SELINA | Mare | BLACK | 49992 | Stud Book | Not Eligible | |
| SULTANS COMMAND | Gelding | BAY | 73207 | 16/11/1981 | Stud Book | Not Eligible |
| SULTRY SUSIE WONG | Mare | BAY | 10304 | Stud Book | Deceased | |
| SULU HAZE - HSH | Gelding | BLACK | 123068 | 08/09/1992 | Stud Book | Deceased |
| SUMA GOLD | Mare | CHESTNUT | F28116 | 29/11/1980 | Foal Recorded | Deceased |