This is US based but I'm something similar applies in Oz

http://www.policymic.com/articles/71255/10-corporations-control-almost-everything-you-buy-this-chart-shows-how?utm_source=takepart&utm_campaign=nov&utm_content=bufferce4fa&utm_medium=facebook

Similar in Aus but less owners, and most of them are over seas  companies. Even car parking in WA is Singapore owned