G4S Australia Holdings Pty Ltd is a foreign-owned private company that generates revenue through the provision of security and custodial services. The company employs approximately 1,665 people in its operations throughout Australia, the company is administered from its headquarters in Melbourne.

G4S Australia Holdings Pty Ltd is a wholly owned subsidiary of the UK-based security company, G4S plc.

The principal business activities of G4S Australia Pty Ltd consist of the provision of custodial and detention services.


G4S provides prisoner transport services to through the Department of Justice (Victoria) to Corrections Victoria, the Victoria Police and the Department of Human Services and is responsible for the management of all prisoners appearing before the courts of South Australia as well as electronic monitoring of offenders. 


G4S also provides secure transport solutions to banks, financial institutions, governments, mines, diamond cutters, jewellery manufacturers, and retailers. Further to these services, G4S provides investigative and compliance services to help prevent fraud.

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