Download the list of Companies in Western Australia. Smartscrapers provides an accurate directory and the latest data on the number of Companies in Western Australia There are 12745 Companies in Western Australia as of April 1, 2026; which is an 5.86% increase from 2023. Of these locations, 11274 Companies which is 88.46% of all Companies in Western Australia are single-owner operations, while the remaining 1471 which is 11.54% are part of larger brands. The top three cities with the most Companies are Perth with 10552 Companies, Bunbury with 22 Companies, Broome with 11 Companies. Average age of Companies in Western Australia is 3 years and 6 months.