Sony is a name of a company.
A conglomerate is the combination of two or more corporations engaged in entirely different businesses that fall under one corporate group , usually involving a parent company and many subsidiaries . The Fortune Global 500 , also known as Global 500 , is an annual ranking of the top 500 corporations worldwide as measured by revenue . Sony . Sony Corporation is the electronics business unit and the parent company of the , which is engaged in business through its four operating components : electronics ( AV , IT & communication products , semiconductors , video games , network services and medical business ) , motion pictures ( movies and TV shows ) , music ( record labels and music publishing ) and financial services ( banking and insurance ) . These make Sony one of the most comprehensive entertainment companies in the world . Sony Music . Sony Music Entertainment is one of the `` Big Three '' record companies , being the second largest after Universal Music Group ( UMG ) and ahead of Warner Music Group ( WMG ) .