| Label | Founded | Label type | Label code (LC) |
|---|---|---|---|
| ICR | 1981 | Original Production | — |
| Illuminated Records | — | Original Production | — |
| Immediate | 1965 | Original Production | 9 |
| Immediate Records | 1 January 1965 | — | corporation |
| IMP | — | Imprint | — |
| INCredible Records | — | Original Production | 2868 |
| Independiente | 1997 | Original Production | — |
| Indigo | — | Imprint | — |
| Infectious Music | January 2009 | Imprint | 7800 |
| Infectious Records | 1993 | Imprint | 1596 |
| Inferno | — | Original Production | — |
| Infrared | — | Original Production | — |
| Insanity Records | — | Original Production | — |
| Inspected Records | 14 February 2011 | Original Production | 37363 |
| Integral Records | 7 January 2000 | Original Production | — |
| Integrity Records | 1 January 1994 | Original Production | — |
| Internal | — | Original Production | 7654 |
| Invisible Hands Music | — | Original Production | — |
| Island Masters | — | Reissue Production | 407 |
| Island Records Group | — | Imprint | — |
| Island Records Ltd. | 8 May 1962 | Production | — |