| I Dischi dello Zodiaco | Italy | January 1, 1969 | — | 1 |
| I.R.S. Records | United States | 1979 | Original Production | — |
| I.R.S. Records | United States | January 1, 1979 | — | 4 |
| Iboga Records | — | 1997 | Original Production | — |
| Iceberg Records | Denmark | January 1, 1982 | — | — |
| Ici d’ailleurs | — | 1997 | Original Production | — |
| ICR Distribution | United Kingdom | January 1, 1981 | — | 1 |
| IDOL Street | Japan | October 2010 | Imprint | — |
| Ignition Records | United Kingdom | January 1, 2012 | — | 1 |
| IHQ | South Korea | February 1, 1999 | — | — |
| Illegal Art | United States | January 1, 1998 | — | 2 |
| Illionaire Records | South Korea | January 1, 2011 | — | — |
| Illumination Music | Poland | January 1, 2009 | — | 1 |
| Immediate Records | United Kingdom | January 1, 1965 | — | — |
| Imperial | Germany | 1953 | Imprint | — |
| Imperial | United States | January 1, 1947 | — | 7 |
| Imperial Records | Japan | — | Imprint | — |
| Impulse! | United States | 1960 | Original Production | — |
| Impulse! | United States | January 1, 1960 | — | 6 |
| Imtrat | Germany | — | Bootleg Production | — |
| In-akustik | Germany | January 1, 1977 | — | 1 |
| Incus | United Kingdom | January 1, 1970 | — | 1 |
| Independiente | United Kingdom | January 1, 1997 | — | 1 |
| Indie Recordings | — | 2005 | Original Production | — |
| Indie Recordings | Norway | January 1, 2005 | — | — |
| Indie Records | Brazil | March 1, 1997 | — | 7 |
| Indieplant | Netherlands | January 1, 2017 | — | 1 |
| Indigo Music | South Korea | April 21, 2017 | — | — |
| Indipendenza | Germany | January 1, 2013 | — | 1 |
| Infacted Recordings | Germany | May 2003 | Original Production | — |
| Infectious Music | United Kingdom | January 2009 | Imprint | — |
| Infectious Music | United Kingdom | January 1, 2009 | — | 2 |
| Infectious Records | United Kingdom | 1993 | Imprint | — |
| Infinity | Australia | January 1, 1971 | — | 1 |
| Initial Records | United States | January 1, 1992 | — | 1 |
| Inner Ear | Norway | January 1, 2007 | — | — |
| Inonaka music | Japan | May 19, 2019 | — | — |
| Inpop Records | United States | January 1, 1999 | — | 2 |
| Inside Out Music | Germany | 1996 | Original Production | — |
| Inside Out Music | Germany | January 1, 1996 | — | 22 |
| Inside Recordings | United States | January 1, 1999 | — | 1 |
| Inspected | United Kingdom | January 1, 2011 | — | — |
| Instant Live | United States | January 1, 2003 | — | 1 |
| Intakt Records | Switzerland | January 1, 1986 | — | 12 |
| Inteam Records | Malaysia | January 1, 2005 | — | — |
| Integrity Music | United States | 1987 | Original Production | — |
| InterChannel | Japan | 1997 | Imprint | — |
| Intercord | Germany | 1966 | Original Production | — |
| Intergroove | Germany | January 1, 1995 | — | — |
| International Artists | United States | January 1, 1965 | — | 1 |
| International Deejay Gigolo Records | Germany | 1996 | Original Production | — |
| Interscope Records | United States | 1990 | Original Production | — |
| Interscope Records | United States | January 1, 1989 | — | 25 |
| Intersound Records | United States | January 1, 1982 | — | 1 |
| Intrada | United States | 1985 | Production | — |
| Inverse Records | — | 2011 | Original Production | — |
| INVITATION | Japan | 1977 | Imprint | — |
| Ipecac Recordings | — | April 1, 1999 | Original Production | — |
| Ipecac Recordings | United States | April 1, 1999 | — | 6 |
| IPQ | South Korea | April 9, 2015 | — | — |
| IRH Press | Brazil | December 24, 1987 | — | — |
| Irma Records | Italy | 1988 | Original Production | — |
| IROAS Corporation | Japan | April 23, 1991 | — | — |
| Iron Bonehead Productions | Germany | 1995 | Production | — |
| Isla | Canada | January 1, 2016 | — | 1 |
| Island | — | July 4, 1959 | Imprint | — |
| Island Records | Jamaica | July 4, 1959 | — | 45 |
| Island Records Group | United Kingdom | — | Imprint | — |
| IST Entertainment | South Korea | January 1, 2011 | — | 1 |
| Italians Do It Better | United States | 2006 | Original Production | — |
| Ivy Records | Japan | April 1, 2011 | — | — |