| Equid | Horse Name ▲ | Breed | Age | Gender | Color | Discipline | Owner |
|---|---|---|---|---|---|---|---|
| 294419B | I Need Caffeine | Thoroughbred | SY19 (9yo) | Stallion | Grey | TC | Morrigan |
| 182211C | I Needa Doctor STAT | Appaloosa | SY11 (17yo) | Mare | Buckskin Leopard | WW | Lissa |
| 518726C | I Saw London | Appaloosa | SY26 (2yo) | Mare | Chestnut Snowcap | SR | Morrigan |
| 187212C | I Steal Candy From Babies | Shetland Pony | SY12 (16yo) | Stallion | Grey | PR | Lissa |
| 488627B | I Wanna Halo Too | Thoroughbred | SY27 (1yo) | Mare | Buckskin | FR | Morrigan |
| 111920B | I've Been Magic | Quarter Horse | SY20 (8yo) | Mare | Grey | WR | Jewel |
| 131217C | Ianthe | Irish Sport Horse | SY17 (11yo) | Mare | Palomino Tobiano | CC | Morrigan |
| 240122C | Icarian | Thoroughbred | SY22 (6yo) | Stallion | Cremello | JP | Lorelei |
| 501625B | Ice Crusher | Thoroughbred | SY25 (3yo) | Stallion | Chestnut | FR | Rhianon |
| 422623B | Ice Rift | Thoroughbred | SY24 (4yo) | Mare | Grey Sabino | FR | Lissa |
| 387723B | Ice Tigers | Appaloosa | SY23 (5yo) | Mare | Smoky Black Blanket | WS | Rhianon |
| 473522S | Icey Assets | Quarter Horse | SY22 (6yo) | Stallion | Bay | WW | Merry |
| 410524C | Ides of March | Thoroughbred | SY24 (4yo) | Stallion | Grey | FR | Cleo |
| 276814C | Idle Department | Dales Pony | SY16 (12yo) | Stallion | Black | PR | Lissa |
| 070917C | Idol For Hire | Holsteiner | SY17 (11yo) | Mare | Chestnut | JP | Manders |
| 057712S | Idolized | Iberian Warmblood | SY12 (16yo) | Mare | Black | WE | The Orchard |
| 166920B | Idyllic | German Riding Pony | SY20 (8yo) | Stallion | Grey | CC | Lissa |
| 427326B | If You Seek Amy | Thoroughbred | SY26 (2yo) | Mare | Buckskin | FR | Morrigan |
| 262824B | iFeelRealFancyLike CR | Quarter Horse | SY24 (4yo) | Mare | Red Dun Overo | WW | Morrigan |
| 349525B | IGhostedHim CR | Appaloosa | SY25 (3yo) | Mare | Bay Pintaloosa | WW | Morrigan |
| 334619B | Ignus KA | Swedish Warmblood | SY19 (9yo) | Stallion | Black | JP | Izabella |
| 110220B | IHope | Quarter Horse | SY19 (9yo) | Mare | Black Overo | WW | Morrigan |
| 515426B | Illicit Love | Thoroughbred | SY26 (2yo) | Mare | Chestnut | FR | Rhianon |
| 256520B | Illumination | Connemara | SY20 (8yo) | Stallion | Grey | DG | Lissa |
| 270522B | Illusion K | Thoroughbred | SY22 (6yo) | Mare | Grey Overo | FR | Lissa |
