The 3 music companies

In the music industries there are three big companies that dominate the market, they are Universal Music Group (UMG), Sony Music Entertainment (SME) and Warner Music Group (WMG).

Market Share (2015)

1. UMG - 33.5%
2. SME - 22.6%
3. WMG - 17.1%

Parent Companies

1. UMG owned by Vivendi
2. SME owned by Sony Corporation
3. WMG owned by  Access Industries

Subsidiaries 

1. UMG - Interscope Records, Republic Records, Island Records, Polydor Records, and more.
2. SME - Columbia Records, RCA Records, Epic Records, Arista Nashville, and more
3. WMG - Atlantic Records, Warner Bros. Records, Parlophone, Reprise Records and more.