List of companies of Australia

This is a list of notable companies based in Australia, a country in Oceania. For further information on the types of business entities in this country and their abbreviations, see "Business entities in Australia".

Australia is a wealthy country; it generates its income from various sources including mining-related exports, telecommunications, banking and manufacturing. It has a market economy, a relatively high GDP per capita, and a relatively low rate of poverty. In terms of average wealth, Australia ranked second in the world after Switzerland in 2013, although the nation's poverty rate increased from 10.2% to 11.8%, from 2000/01 to 2013. It was identified by the Credit Suisse Research Institute as the nation with the highest median wealth in the world and the second-highest average wealth per adult in 2013.

Largest firms
This list shows firms in the Fortune Global 500, which ranks firms by total revenues reported before March 31, 2017. Only the top five firms (if available) are included as a sample.

Notable firms
This list includes notable companies with primary headquarters located in the country. The industry and sector follow the Industry Classification Benchmark taxonomy. Organizations which have ceased operations are included and noted as defunct.