| T-Entertainment | South Korea | June 18, 2010 | — | — |
| T-Series | India | July 11, 1983 | — | 3 |
| Tabu Records | Denmark | January 1, 1998 | — | — |
| TAEWON Entertainment | South Korea | January 1, 1995 | — | — |
| TAISHITA | Japan | 1983 | Imprint | — |
| Taishita Label Music | Japan | January 15, 2007 | — | — |
| Taiwan Columbia | Taiwan under Japanese rule | February 1, 1933 | — | — |
| Takoma Records | United States | January 1, 1959 | — | 1 |
| Talitres | France | January 1, 2001 | — | — |
| Tamarindo Rekordsz | United States | February 27, 2014 | — | 3 |
| Tamla | United States | January 12, 1959 | — | 1 |
| Tanta Roba | Italy | January 1, 2011 | — | 6 |
| Tao Forms | United States | January 1, 2020 | — | 3 |
| Tapete Records | Germany | 2002 | — | — |
| Tapete Records | Germany | January 1, 2002 | — | 1 |
| Taraneh Records | United States | January 1, 1981 | — | 1 |
| Target Records | Denmark | January 1, 2003 | — | 2 |
| Taylor Swift | United States | 2019 | Original Production | — |
| TDH Home Entertainment | Iran | January 1, 2000 | — | 1 |
| Technique Recordings | United Kingdom | 1999 | Original Production | — |
| TeenBeat Records | United States | January 1, 1984 | — | 3 |
| Teg Publishing | Sweden | January 1, 2010 | — | — |
| Teichiku Records | Japan | February 11, 1934 | Imprint | — |
| Telaga Biru | Malaysia | January 1, 1997 | — | — |
| Telamo | Germany | 2012 | — | — |
| Telamo | Germany | January 1, 2012 | — | 1 |
| Telarc | United States | 1977 | Original Production | — |
| Telarc International Corporation | United States | January 1, 1977 | — | 2 |
| TELDEC | Germany | March 10, 1950 | Imprint | — |
| TELDEC | Germany | 1988 | Imprint | — |
| Telefunken | Germany | — | Original Production | — |
| Telegram Records Stockholm | Sweden | January 1, 1987 | — | 2 |
| Telstar | United Kingdom | January 1, 1982 | — | 3 |
| Telstar Music | — | 1963 | Original Production | — |
| Tempi Duri | Italy | January 1, 2011 | — | 1 |
| Temporary Residence Limited | United States | 1995 | Original Production | — |
| Temporary Residence Limited | United States | January 1, 1995 | — | 4 |
| Tencent Music | People's Republic of China | July 1, 2016 | — | — |
| Terrible Records | United States | January 1, 2009 | — | 1 |
| Text Records | United Kingdom | January 1, 2001 | — | 2 |
| TF Entertainment | People's Republic of China | August 6, 2009 | — | — |
| The 1193 Music Group | United States | July 18, 2023 | — | — |
| The Bank Records | Denmark | March 12, 2015 | — | — |
| The Black Label | South Korea | May 1, 2016 | — | — |
| The End Records | — | 1998 | Original Production | — |
| The End Records | United States | January 1, 1998 | — | 2 |
| THE FIRST TAKE MUSIC | Japan | November 15, 2020 | Original Production | — |
| The Flenser | — | 2009 | Production | — |
| The Flenser | United States | January 1, 2009 | — | 1 |
| The Flight Club | United Kingdom | January 21, 2015 | — | — |
| The Island Def Jam Music Group | United States | 1999 | Holding | — |
| The Island Def Jam Music Group | United States | January 1, 1998 | — | 1 |
| The Music Works | South Korea | January 1, 2012 | — | — |
| The Null Corporation | United States | January 1, 2008 | — | 1 |
| The Numero Group | United States | January 1, 2003 | — | 6 |
| The Orchard | United States | January 1, 1997 | — | — |
| The Record Station | Sweden | January 1, 1985 | — | 4 |
| The Rocket Record Company | United Kingdom | 1972 | Original Production | — |
| The Saifam Group | Italy | January 1, 1981 | — | — |
| The Spicy Effect | Greece | January 1, 2009 | — | — |
| The state51 Conspiracy | United Kingdom | 1991 | Production | — |
| The state51 Conspiracy | United Kingdom | January 1, 1991 | — | — |
| Thecutestlabel | Poland | March 1, 2020 | — | 1 |
| Think Music | India | January 1, 2007 | — | 2 |
| Thinner | Germany | January 1, 1998 | — | — |
| Third Man Records | United States | 2001 | Original Production | — |
| Third Man Records | United States | January 1, 2001 | — | 2 |
| Third Side Records | France | January 1, 2001 | — | — |
| Thirteen Records | Brazil | January 1, 1995 | — | 2 |
| Thirty Tigers | United States | January 1, 2002 | — | 4 |
| This Never Happened | United States | June 27, 2016 | Imprint | — |
| Thisco | Portugal | January 1, 2001 | — | 6 |
| Three blind mice | Japan | June 1970 | Production | — |
| Three Lobed Recordings | United States | January 1, 2000 | — | 1 |
| Thrill Jockey | United States | 1992 | Original Production | — |
| Thrill Jockey | United States | January 1, 1992 | — | 11 |
| Thump Records | United States | January 1, 1990 | — | 1 |
| Thúy Nga Productions | United States | January 1, 1963 | — | 1 |
| Timezone | Germany | January 1, 2003 | — | — |
| Time–Life Music | United States | 1961 | Reissue Production | — |
| Tina Karol | Ukraine | January 1, 2007 | — | 3 |
| TIPS | — | 1975 | Imprint | — |
| Tips Industries | India | January 1, 1975 | — | 1 |
| TK Entertainment | South Korea | January 1, 2011 | — | — |
| TME Group | South Korea | January 1, 2013 | — | — |
| TN Entertainment | South Korea | January 1, 2002 | — | — |
| Toast Records | Italy | January 1, 1985 | — | — |
| TOBE | Japan | March 16, 2023 | — | — |
| TOBE MUSIC | Japan | March 16, 2023 | — | — |
| Toccata Classics | United Kingdom | 2005 | Original Production | — |
| Todah Music | Brazil | August 12, 2012 | — | — |
| TOHO animation RECORDS | Japan | April 2013 | Imprint | — |
| TOKUMA JAPAN COMMUNICATIONS | Japan | 1992 | — | — |
| Tokuma Shoten | Japan | March 19, 1954 | — | 3 |
| Tommy Boy | — | — | Imprint | — |
| Tommy Boy Records | United States | January 1, 1981 | — | 7 |
| Tompkins Square | United States | 2005 | Original Production | — |
| Tone-Cool Records | United States | January 1, 1985 | — | 1 |
| Tonherd | Austria | January 1, 2018 | — | — |
| Tonpress | Poland | January 1, 1970 | — | — |
| Toolroom Records | United Kingdom | 2004 | Original Production | — |
| Tooth & Nail Records | United States | January 1, 1993 | — | 3 |
| Top Dawg Entertainment | United States | 2004 | Original Production | — |
| Top Dawg Entertainment | United States | January 1, 2004 | — | 1 |
| Topic Records | United Kingdom | January 1, 1939 | — | 1 |
| TopNotch | Netherlands | January 1, 1995 | — | 2 |
| Topshelf Records | United States | February 2006 | Original Production | — |
| Topshelf Records | United States | January 1, 2005 | — | 1 |
| Toshiba EMI Ltd. | Japan | January 1, 1960 | — | — |
| Toshiba Records | Japan | October 1, 1960 | Imprint | — |
| Total Holocaust Records | Sweden | January 1, 2002 | — | 1 |
| Total Stasis | Canada | January 1, 2013 | — | 1 |
| Tower Records Japan Inc. | Japan | December 1, 1981 | — | — |
| Towerbell Records | United Kingdom | January 1, 1980 | — | 1 |
| Toy's Factory | Japan | May 30, 1990 | — | 18 |
| TOY’S FACTORY | Japan | May 30, 1990 | Original Production | — |
| Track Record | United Kingdom | January 1, 1966 | — | 2 |
| Trama | Brazil | January 1, 1998 | — | 5 |
| Trans Music Archive | United States | January 1, 2025 | — | — |
| Transgressive Records | United Kingdom | 2004 | Original Production | — |
| Transgressive Records | United Kingdom | January 1, 2004 | — | 6 |
| Transmission Records | Netherlands | January 1, 1995 | — | 1 |
| Traumton Records | Germany | January 1, 1992 | — | 1 |
| Treasure Isle | Jamaica | January 1, 1959 | — | 1 |
| Trema | France | 1969 | Production | — |
| Tresor | — | July 1991 | Original Production | — |
| Tri Angle | United Kingdom | January 1, 2010 | — | 3 |
| TRIAD | Japan | 1987 | Imprint | — |
| Tribl Records | United States | January 1, 2021 | — | 1 |
| Triple Crown Records | United States | January 1, 1997 | — | 1 |
| Triple Earth | United Kingdom | January 1, 1983 | — | 1 |
| Triple j | Australia | January 19, 1975 | Holding | — |
| Triple X Records | United States | 1985 | Production | — |
| Trisol | Germany | — | Production | — |
| Trisol Music Group | Germany | January 1, 1997 | — | 5 |
| Trojan Records | United Kingdom | 1968 | Reissue Production | — |
| Trojan Records | United Kingdom | January 1, 1968 | — | 2 |
| Troniks | United States | January 1, 1997 | — | 1 |
| Trooper Entertainment | Japan | January 1, 2009 | — | — |
| Trost Records | Austria | January 1, 1991 | — | 1 |
| Trova | Argentina | January 1, 1965 | — | 2 |
| Trovarobato | Italy | January 1, 2004 | — | 4 |
| TS Entertainment | South Korea | January 1, 2008 | — | — |
| TUARON | Latvia | June 22, 2004 | — | — |
| Tuff Gong | Jamaica | January 1, 1970 | — | 3 |
| TUM Records | Finland | January 1, 2003 | — | 1 |
| Turenki Records | Finland | January 1, 2010 | — | — |
| Tutl | Faroe Islands | January 1, 1977 | — | 1 |
| TVB Music Group | Hong Kong | November 15, 2013 | — | 1 |
| TVT Records | United States | August 1, 1984 | — | 1 |
| Twin/Tone Records | United States | January 1, 1977 | — | 1 |
| Two Gentlemen | Switzerland | January 1, 2000 | — | — |
| Tylden & Co. | Norway | February 8, 1992 | — | 7 |
| Tôt ou tard | France | January 1, 1996 | — | 1 |
| T‐Series | — | July 11, 1983 | Imprint | — |