Singtel Optus Pty Limited is the second largest telecommunications company in Australia. It is a wholly owned subsidiary of Singtel since 2001. The company primarily trades under the Optus brand, while maintaining several wholly owned subsidiary brands, such as Virgin Mobile Australia in the mobile telephony market, Uecomm in the network services market and Alphawest in the ICT services sector.

Singtel Optus Pty Limited is the second largest telecommunications company in Australia. It is a wholly owned subsidiary of Singtel since 2001. The company primarily trades under the Optus brand, while maintaining several wholly owned subsidiary brands, such as Virgin Mobile Australia in the mobile telephony market, Uecomm in the network services market and Alphawest in the ICT services sector.