| [PIAS] UK | Distributor | | United Kingdom | 1993 | 2006-02 | |
| #Merky Records | Original Production | | United Kingdom | | | |
| 4Worlds Media | | | United Kingdom | | | |
| 10 Records | Original Production | LC 003098 | United Kingdom | 1983 | | |
| 10 Records Ltd. | | | United Kingdom | | | |
| 14th Floor Records | Original Production | LC 003077 | United Kingdom | | | |
| 19 Music Ltd. | Publisher | | United Kingdom | | | |
| 19 Productions | Production | | United Kingdom | | | |
| 19 Recordings | Imprint | | United Kingdom | 1999 | | |
| 19 Recordings Ltd. | | | United Kingdom | 1999 | | |
| 33 Records | Original Production | | United Kingdom | | | |
| 48K | Original Production | | United Kingdom | | | |
| 63 Songs Limited | Publisher | | United Kingdom | | | |
| 95.8 Capital FM | Imprint | | United Kingdom | 1973 | | |
| 100% Records | Original Production | | United Kingdom | 2009 | | |
| 140 DB Management | Holding | | United Kingdom | | | |
| 140dB | | | United Kingdom | 1989 | | |
| 0207 Def Jam | Original Production | | United Kingdom | 2020-11 | | |
| 365 Artists | Production | | United Kingdom | | | |
| 380 Records | Production | | United Kingdom | | | |
| 720 Degrees | Original Production | | United Kingdom | 1997 | | |
| 1965 Records | Original Production | | United Kingdom | | | |
| 5000records | Production | LC 010117 | United Kingdom | 1999 | | |
| 130701 | Original Production | | United Kingdom | 2001-07-13 | | 5 |
| A Tale of Two Ditties | Publisher | | United Kingdom | | | |
| A&E Records Ltd. | | | United Kingdom | 2003-05-19 | | |
| A&G Songs Ltd. | Publisher | | United Kingdom | | | |
| ABKCO Music Ltd. | Publisher | | United Kingdom | 1982-07-19 | | |
| Abood Music Limited | Publisher | | United Kingdom | | | |
| ABRSM | Publisher | | United Kingdom | 1889-10-01 | | |
| ABRSM (Publishing) Ltd. | Publisher | | United Kingdom | 1985 | | |
| ABRSM Publishing | Imprint | | United Kingdom | | | |
| Academy Sound and Vision Ltd | Original Production | | United Kingdom | 1980-12-31 | 1995-02-03 | |
| Accidental | | LC 058229 | United Kingdom | 2000-01 | | |
| Ace | Reissue Production | LC 005982 | United Kingdom | 1978 | | |
| Ace Records Ltd | Distributor | LC 005982 | United Kingdom | 1975 | | |
| Action Replay Records | | | United Kingdom | | | |
| Active | Publisher | | United Kingdom | | | |
| Adam F Publishing Ltd. | Publisher | | United Kingdom | | | |
| Adolph Fürstner Ltd. | Publisher | | United Kingdom | | | |
| Adrenalin Records | Original Production | | United Kingdom | | | |
| Afro Art | Original Production | | United Kingdom | | | |
| Against the Grain | Original Production | | United Kingdom | 2000 | | |
| AIR Music (London) Ltd. | Publisher | | United Kingdom | | | |
| Air Raid Records | Reissue Production | | United Kingdom | | | |
| Airtight | Original Production | | United Kingdom | | | |
| Albert Music | Original Production | | United Kingdom | | | |
| All Access | Bootleg Production | | United Kingdom | | | |
| All Around the World | Original Production | LC 007341 | United Kingdom | | | |
| All Saints Records | Production | | United Kingdom | 1991 | | |
| alto | | | United Kingdom | 2006 | | |
| Ambiguous Records | Original Production | | United Kingdom | | | |
| Ambush Reality | Original Production | | United Kingdom | | | |
| AMF Records | Imprint | | United Kingdom | 2014 | | |
| Amy Macdonald Ltd. | | | United Kingdom | 2006-04-28 | | |
| Anagram Records | Original Production | | United Kingdom | 1982 | | |
| Anchor Music Ltd. | Publisher | | United Kingdom | | | |
| Anchor Records | Original Production | | United Kingdom | 1974 | 1978 | |
| Andrew Heath Music Ltd. | Publisher | | United Kingdom | 1976-05-04 | 1981-12-31 | |
| Angel Music Ltd. | Publisher | | United Kingdom | | | |
| Angular Recording Corporation | Original Production | | United Kingdom | 2003-06 | | |
| Anjunabeats | Original Production | | United Kingdom | 2000-04-01 | | 4 |
| Ant Miles Music | Publisher | | United Kingdom | | | |
| Ant Music (Top‐Notch) Publishing Ltd. | Publisher | | United Kingdom | | [unknown] | |
| Antidote | Original Production | | United Kingdom | | | |
| Antilles | Production | LC 000383 | United Kingdom | | | |
| Apace Music | Production | | United Kingdom | | | |
| Apace Rights Ltd. | Publisher | | United Kingdom | | | |
| Aperture | Original Production | | United Kingdom | | | |
| Apex | | LC 002822 | United Kingdom | | | |
| Aphrodite Recordings | Original Production | | United Kingdom | | | |
| Apollo Control | Publisher | | United Kingdom | | | |
| Apollo Recordings | Original Production | | United Kingdom | 2006 | | |
| Apple Records | Original Production | LC 001074 | United Kingdom | 1968 | | |
| AppleTreeSongs Ltd. | Publisher | | United Kingdom | | | |
| Aqua Music | | | United Kingdom | | | |
| Aqua Music Ltd. | Publisher | | United Kingdom | 1978-12-31 | | |
| Aquarius Music Ltd. | Publisher | | United Kingdom | 1970-03-09 | | |
| ARC Music Productions Int. Ltd. | | | United Kingdom | | | |
| ARC(ANE) | Original Production | | United Kingdom | | | |
| Arcadia Music Publishing Co. Ltd. | Publisher | | United Kingdom | | | |
| Ardmore and Beechwood Ltd. | Publisher | | United Kingdom | | | |
| Argo | Imprint | | United Kingdom | 1951 | | |
| Argo Record Company | Original Production | | United Kingdom | | | |
| Ariadne | Imprint | | United Kingdom | | | |
| Arista Records Ltd. | Holding | | United Kingdom | 1979-12-31 | 1987-04-01 | |
| Arnakata Music Ltd | Publisher | | United Kingdom | | | |
| ASIA Music Ltd. | Original Production | | United Kingdom | | | |
| Asquith | Publisher | | United Kingdom | | | |
| ASV | Reissue Production | | United Kingdom | | | |
| ASV Digital | Original Production | | United Kingdom | | | |
| ASV Gold | Reissue Production | | United Kingdom | | | |
| ASV Ltd. | | | United Kingdom | 1995-02-03 | | |
| ASV Mono | Reissue Production | | United Kingdom | | | |
| ASV Platinum | Reissue Production | | United Kingdom | | | |
| ASV Quicksilva | | | United Kingdom | | | |
| Asylum Records UK | Holding | | United Kingdom | | | |
| Athene Records | | | United Kingdom | 1991 | | |
| ATIC Records | Original Production | | United Kingdom | | | |
| Atlantic Jaxx | Original Production | | United Kingdom | | | |