Guardian Media Group was created in 1993.
Guardian Media Limited was created in 1917-09.
Guardian Media Entertainment was created in 2010-10.
Guardian Capital Group was created in 1962.
Metroland Media Group was created in 1981.
Transcend Media Group was created in 2004.
Davidson Media Group was created in 2004.
VJM Media Group was created in 1974.
UBC Media Group was created in 1989.
Prime Media Group was created in 1989.
Styria Media Group was created in 1869.
Euronova Media Group was created in 1997.
Mortons Media Group was created in 1999.