Southern Cross Media Group was created in 2007-11.
Metroland Media Group was created in 1981.
Southern Media Corporation was created on 2004-01-18.
The Media Institute of Southern Africa was created in 1992.
Media Institute of Southern Africa was created in 1992.
Genshi Media Group was created in 1995.
Paxton Media Group was created in 1896.
Arab Media Group was created in 2005.
Ignite Media Group was created in 2009.
NHST Media Group was created in 1889.
Mixed Media Group was created in 1991.
Shenzhen Media Group was created in 1984.
Serenity Media Group was created in 2010.