Media ownership

Concentration of media ownership (also known as media consolidation or media convergence) is a process whereby progressively fewer individuals or organizations control increasing shares of the mass media. Contemporary research demonstrates increasing levels of consolidation, with many media industries already highly concentrated and dominated by a very small number of firms.

Globally, large media conglomerates include Viacom, CBS Corporation, Time Warner, 21st Century Fox and News Corp (the former News Corporation, split in 2013), Bertelsmann, Sony, Comcast, Vivendi, Televisa, The Walt Disney Company, Hearst Corporation, Organizações Globo and Lagardère Group.

As of 2015^[update], Comcast Corporation is the largest media conglomerate in the US, with The Walt Disney Company, News Corp and Time Warner ranking second, third and fourth respectively.

In nations described as authoritarian by most international think-tanks and NGOs, media ownership is generally something very close to the complete state control over information in direct or indirect ways.

...
Wikipedia