Sydney Top Companies List by Market Cap as of August 2026

Charter Hall Group is a Property Investment Management company. It operate with prudence and have carefully curated a diverse portfolio of over 1,300+ properties, spanning everything from industrial properties, retail centres and premium office buildings to most recent investment in early learning centres and funds under management is $41.8bn. The headquarters is in Australia.

Sonic Healthcare is a global healthcare company with a reputation for excellence in laboratory medicine/pathology, radiology/diagnostic imaging and primary care medical services. Headquarters is in Australia.

Ramsay Health Care was established by Paul Ramsay, Headquarters is in Sydney, Australia, in 1964 and has grown to become a global hospital group operating 235 hospitals, day surgery centres, treatment facilities, rehabilitation and psychiatric units and a nursing college across Australia, France, the United Kingdom, Italy, Indonesia and Malaysia. It is one of the top five private hospital operators in the world.

GPT Group is real estate investment company with headquarters is in Sydney, Australia.

Cochlear Limited is Medical Equipment manufacture and research company based in Australia. Cochlear Limited is the leading global expert in implantable hearing solutions. Cochlear hearing implants are the latest and most innovative hearing implant devices available. Headquarters is in Australia.

Mirvac Group is Real estate investment company with headquarters is in Sydney, Australia.

TPG Telecom is a Telecommunications company. It is the second-largest fixed voice and data network, with more than 27,000 kilometers of metropolitan and inter-capital fibre networks and mobile network comprising more than 5,600 sites, including a 4G network covering over 22 million Australians, a 5G network currently being rolled out in selected areas of Australia, international transit capacity and a strategic portfolio of spectrum assets. The headquarters is in Australia.

Challenger is investments management and asset management company. The headquarters is in Australia.

Challenger Limited, managed by CEO Richard Howes, is an ASX-listed investment management firm managing $85 billion in assets (as at 30 June 2020).

Dexus is real estate investment company with headquarters is in Sydney, Australia. Dexus own, manage and create high quality workplaces across the office, industrial, retail and healthcare sectors. Headquarters is in Australia.