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About this directory

This directory lists registered-office contact details — address, state, phone, website and share registry — for the 300 largest companies listed on the Australian Securities Exchange (ASX), ranked by market capitalisation.

Where the data comes from

Company details are sourced from the ASX and reflect each company's registered office as filed with the exchange. Companies that are domiciled overseas but cross-listed on the ASX are grouped under International.

How current is it?

The S&P/ASX index family is rebalanced periodically, and companies occasionally change their registered office or contact numbers. This directory is refreshed on each rebuild. Always confirm details with the company before relying on them.

Disclaimer

Information is provided for general reference only and does not constitute financial advice. For shareholding, dividend or holding-statement enquiries, contact the company's share registry (shown on each company page), not the company directly.