| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| IVANHOE WALKER - HSH | Gelding | BROWN | 131474 | 01/10/1994 | Stud Book | Not Eligible |
| IVANHOE WENDY - HSH | Mare | BROWN | 131470 | 01/10/1994 | Stud Book | Not Eligible |
| IVANNA | Mare | BAY | C1-195464 | 21/11/2004 | First Cross | Not Eligible |
| IVE GOT FROST | Mare | ROAN | C1-182145 | 27/09/2003 | First Cross | Eligible |
| IVERIDGE BANANA | Gelding | DUN | 11838 | Stud Book | Deceased | |
| IVERIDGE SAFARI | Mare | BLACK | 6966 | Stud Book | Deceased | |
| IVERIDGE TOOTS | Mare | BAY | 6967 | Stud Book | Deceased | |
| IVONA ROYAL BRUCE | Gelding | BAY | 50760 | 24/09/1977 | Stud Book | Not Eligible |
| IVONA STORM | Stallion | BAY | F17225 | 21/12/1978 | Foal Recorded | Not Eligible |
| IVORS DESTINY | Mare | BLACK | C2-252620 | 07/05/2015 | Second Cross | Not Eligible |
| IVORY BANGLE | Mare | BAY | C1-182534 | 04/10/2002 | First Cross | Not Eligible |
| IVORY CRICKET - HSH | Mare | BAY | 185998 | 22/10/2006 | Stud Book | Eligible |
| IVORY JACK - HSH | Stallion | BLACK | 177248 | 04/01/2006 | Stud Book | Not Eligible |
| IVORY LASS | Mare | BROWN | 77489 | 16/10/1980 | Stud Book | Deceased |
| IVORY LIGHT - HSH | Stallion | BAY | SM-185104 | 01/01/2005 | Special Merit - Stud Book | Not Eligible |
| IVORY OAK | Stallion | CHESTNUT | C1-149559 | 28/09/1994 | First Cross | Not Eligible |
| IVORY PIPPIN - HSH | Gelding | BLACK/BUCKSKIN | 238789 | 18/03/2014 | Stud Book | Not Eligible |
| IVORY STAR | Mare | GREY | 56618 | 07/09/1977 | Stud Book | Deceased |
| IVORY VALUTA | Mare | BAY/GREY | 101459 | 11/11/1988 | Stud Book | Not Eligible |
| IVORYS DARK KNIGHT | Stallion | BLACK | 236263 | 15/11/2011 | Stud Book | Eligible |
| IVORYS TOP KNIGHT - HSH | Mare | BAY | 239040 | 05/10/2013 | Stud Book | Not Eligible |
| IVORYS VICTORY - HSH | Mare | BAY/ROAN | 245959 | 20/10/2013 | Stud Book | Eligible |
| IVY | Mare | BAY | 4910 | 01/01/1969 | Stud Book | Deceased |
| IVY COTTAGE CLIPPER | Mare | BAY | 36851 | Stud Book | Not Eligible | |
| IVY MAC | Mare | CHESTNUT | 29697 | 01/10/1973 | Stud Book | Deceased |
| IVYBANK HAZEL - HSH | Mare | BAY | 155825 | 02/01/2000 | Stud Book | Not Eligible |
| IVYBANK SIMPLY BOBBIE - HSH | Mare | BLACK | 155824 | 06/12/1997 | Stud Book | Not Eligible |
| IWOA LASS - HSH | Mare | BROWN | 211822 | 06/10/1980 | Stud Book | Deceased |
| IWONA GOLDRUSH | Mare | CHESTNUT | 132880 | 04/02/1996 | Stud Book | Not Eligible |
| IWONA IMOGEN | Mare | BLACK | 139593 | 01/11/1995 | Stud Book | Not Eligible |
| IWONA MATADOR | Stallion | BROWN | F38641 | 01/01/1983 | Foal Recorded | Deceased |
| IWONA MISTAKE | Mare | CHESTNUT | 43168 | 01/09/1970 | Stud Book | Deceased |
| IWONA RAINDANCER | Mare | BLACK | F132881 | 08/01/1996 | Foal Recorded | Deceased |
| IXL AUDRA | Mare | TAFFY | 44555 | 01/09/1967 | Stud Book | Deceased |
| IXL AUDREEN | Mare | CHESTNUT | F21897 | 30/03/1979 | Foal Recorded | Not Eligible |
| IXL AUDREY | Mare | CHESTNUT | 44574 | 01/02/1972 | Stud Book | Deceased |
| IXL BARMAID | Mare | CHESTNUT | 44567 | 01/11/1968 | Stud Book | Deceased |
| IXL BOUQUET | Mare | BAY | 44563 | 01/09/1968 | Stud Book | Deceased |
| IXL BUBBLES | Mare | TAFFY | 44557 | 01/09/1967 | Stud Book | Deceased |
| IXL CAROUSEL | Mare | CHESTNUT | 44556 | 01/09/1967 | Stud Book | Deceased |
| IXL DAPHNE | Mare | CHESTNUT | 44566 | 01/10/1968 | Stud Book | Deceased |
| IXL DELILAH | Mare | TAFFY | 44562 | 01/08/1968 | Stud Book | Deceased |
| IXL FAIR GO | Gelding | BAY | F21899 | 24/03/1979 | Foal Recorded | Not Eligible |
| IXL FAIRY II | Mare | CHESTNUT | 44572 | 01/04/1972 | Stud Book | Deceased |
| IXL FASHION | Mare | CHESTNUT | 44550 | Stud Book | Not Eligible | |
| IXL GLENPRAIRIE | Stallion | CHESTNUT | 45055 | 01/11/1969 | Stud Book | Deceased |
| IXL GRACE | Mare | CHESTNUT | 44570 | 01/07/1969 | Stud Book | Deceased |
| IXL HURRICANE | Mare | CHESTNUT | 44554 | 01/10/1966 | Stud Book | Deceased |
| IXL JANE | Mare | CHESTNUT | 44565 | 01/10/1968 | Stud Book | Deceased |
| IXL JUDITH | Mare | TAFFY | F21901 | 28/03/1979 | Foal Recorded | Not Eligible |
| IXL JUDY | Mare | CHESTNUT | 44560 | 01/12/1967 | Stud Book | Deceased |
| IXL MARBLE | Gelding | CHESTNUT | F21896 | 10/02/1979 | Foal Recorded | Not Eligible |
| IXL MARGE II | Mare | CHESTNUT | 44552 | Stud Book | Not Eligible | |
| IXL MARJORIE | Mare | CHESTNUT | 44564 | 01/09/1968 | Stud Book | Deceased |
| IXL MAUREEN | Mare | BLACK | 44551 | Stud Book | Not Eligible | |
| IXL MINNIE | Mare | BAY | F21898 | 25/03/1979 | Foal Recorded | Not Eligible |
| IXL MISS MAUREEN | Mare | TAFFY | F21900 | 28/03/1979 | Foal Recorded | Not Eligible |
| IXL MOUNTAIN MAID | Mare | BAY | 44558 | 01/10/1967 | Stud Book | Deceased |
| IXL MOUSE | Mare | BROWN | 44553 | Stud Book | Not Eligible | |
| IXL MYRTLE | Mare | CHESTNUT | 44571 | 01/08/1969 | Stud Book | Deceased |
| IXL PLAYGIRL | Mare | CHESTNUT | 44573 | 01/04/1972 | Stud Book | Deceased |
| IXL SHIELA | Mare | TAFFY | 44569 | 01/06/1969 | Stud Book | Deceased |
| IXL SUGAR | Mare | CHESTNUT | 44561 | 01/06/1968 | Stud Book | Deceased |
| IXL TRUDY | Mare | CHESTNUT | 44559 | 01/10/1967 | Stud Book | Deceased |
| IXL WHIRLYBIRD | Mare | BAY | 44568 | 01/12/1968 | Stud Book | Deceased |
| IY SPY | Mare | CHESTNUT | 71097 | 01/01/1980 | Stud Book | Not Eligible |
| IZA | Mare | CHESTNUT | 2162 | 08/11/1967 | Stud Book | Deceased |
| IZA ACRES OF LACE | Mare | BROWN/BLACK | 259131 | 20/12/2019 | Stud Book | Eligible |
| IZA ACRES OF SMOKE | Gelding | BROWN/BLACK | 259996 | 15/12/2020 | Stud Book | Eligible |
| IZA DIVA - HSH | Mare | BAY | 185878 | 14/01/2005 | Stud Book | Eligible |
| IZA EVIE | Mare | BAY | C1-250109 | 09/12/2016 | First Cross | Eligible |
| IZA GEM | Mare | CHESTNUT | C2-149653 | 15/10/2000 | Second Cross | Not Eligible |
| IZA GIDGEE - HSH | Mare | BROWN | 238981 | 01/10/2009 | Stud Book | Deceased |
| IZA JILL - HSH | Mare | CHESTNUT | 238982 | 04/10/2012 | Stud Book | Eligible |
| IZA LOTSA | Mare | BROWN | 157010 | 13/09/2002 | Stud Book | Not Eligible |
| IZA MAYHEM | Mare | BAY | 250110 | 09/09/2018 | Stud Book | Not Eligible |
| IZA REBEL ACRE | Stallion | BROWN | 198326 | 21/10/2011 | Stud Book | Eligible |
| IZA SAVVY | Mare | BAY | 250119 | 26/10/2015 | Stud Book | Not Eligible |
| IZA TWIRL | Mare | BAY | 250124 | 10/10/2015 | Stud Book | Deceased |
| IZA TWISTY - HSH | Mare | BROWN | 262254 | 04/12/2019 | Stud Book | Eligible |
| IZABLUE GUNSMOKE | Mare | BAY | C2-183362 | 22/11/2004 | Second Cross | Not Eligible |
| IZACC | Gelding | BROWN | 72129 | 01/01/1979 | Stud Book | Not Eligible |
| IZON | Stallion | CHESTNUT | F24189 | 20/11/1979 | Foal Recorded | Not Eligible |
| IZZABABE | Mare | BUCKSKIN | 242037 | 28/11/2015 | Stud Book | Eligible |
| J LEE A LATTE | Mare | CHESTNUT | 243052 | 23/12/2010 | Stud Book | Not Eligible |
| J LEE AMEGO | Gelding | GREY | 64636 | 01/01/1974 | Stud Book | Deceased |
| J LEE ANGEL | Mare | CHESTNUT | 140850 | 06/11/1997 | Stud Book | Not Eligible |
| J LEE BOOMTOWN | Gelding | BAY | 145598 | 02/03/1999 | Stud Book | Not Eligible |
| J LEE CAMEO | Mare | GREY | 64640 | 28/02/1979 | Stud Book | Not Eligible |
| J LEE CENTREFIELD | Stallion | PALOMINO | 154277 | 13/09/2001 | Stud Book | Not Eligible |
| J LEE CHCARLA | Mare | GREY | C1-166732 | 11/10/1995 | First Cross | Eligible |
| J LEE CIARA | Mare | BROWN | C2-186779 | 03/12/2007 | Second Cross | Eligible |
| J LEE DOT AU | Gelding | BROWN | 181142 | 23/11/2006 | Stud Book | Eligible |
| J LEE DOT COM | Gelding | BROWN | 154188 | 29/06/2002 | Stud Book | Eligible |
| J LEE FASIKA | Mare | CHESTNUT | 251509 | 16/01/2016 | Stud Book | Not Eligible |
| J LEE FLORA | Mare | BROWN | F37976 | 26/12/1983 | Foal Recorded | Not Eligible |
| J LEE FLOSSY | Mare | BAY | 145605 | 03/01/2000 | Stud Book | Not Eligible |
| J LEE FREEDOM | Mare | CHESTNUT | 140853 | 22/12/1998 | Stud Book | Not Eligible |
| J LEE GOSSIP | Mare | BAY | 154184 | 05/04/2001 | Stud Book | Eligible |
| J LEE IRELENE | Mare | BROWN | 64638 | 01/01/1973 | Stud Book | Deceased |