The commercial district of North Sydney includes the second largest concentration of office buildings in New South Wales, with a large representation from the advertising and information technology industries. Advertising, marketing businesses and associated trades such as printing have tradionally dominated the business life of the area though these have been supplanted to a certain extent by information technology businesses. Corporations whose offices are in North Sydney include Cisco Systems, Sun Microsystems, AGL, AAMI and until October 2007, Optus. Unlike other major suburban hubs within the Sydney metropolitan area, North Sydney has limited shopping facilities and almost no Sunday trading. There are no department stores and only two medium sized supermarkets (Aldi & IGA). The main shopping complex is the Greenwood Plaza, which is connected to North Sydney station.Berry Square is another shopping centre in Berry Street, formerly known as North Sydney Shopping World.

North Sydney is directly linked to the Sydney CBD by road and rail across the Sydney Harbour Bridge. North Sydney railway station is on the North Shore Line of the City Rail network. The Warringah Freeway links North Sydney south to the Sydney CBD and north to Chatswood, New South Wales.

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