Opera Australia | 15,538 followers on LinkedIn. Australia's national opera company | Opera Australia is Australia’s national opera company, presenting more than 700 performances and playing to more than half a million people each year. Opera is a vital part of Australia’s cultural landscape. We perform the world’s best loved operas under the iconic sails of the Sydney Opera House and at Arts Centre Melbourne, as well as in school halls and outback towns, on Sydney Harbour and the Gold Coast beach.