As of August 2015,[update] TPG is the second-largest internet service provider in Australia and is the largest mobile virtual network operator.

The company was formed from the merger between Total Peripherals Group, which was established in 1986 by David and Vicky Teoh, and SP Telemedia in 2008.

[3] In February 2020, the Federal Court of Australia decided against an objection by the Australian Competition and Consumer Commission opposing that merger.

Total Peripherals Group was established in 1986 by Malaysian-born Australian businessman David Teoh, as an IT company that sold OEM computers and later moved to provide internet and mobile telephone services.

Soul Converged Communications, formally known as Comindico, was an Australian telecommunications company based in Sydney.

In September 2006 Soul increased its stake in B Digital to 75 per cent and made a full takeover offer.

[9] In November 2009, TPG, which already owned a substantial portion of PIPE Networks' shares, announced it intended to acquire the company.

[10] TPG completed its acquisition of PIPE for $373 million by way of scheme of arrangement on 31 March 2010, after shareholders and government bodies approved the transaction.

[14] The transaction allows TPG to gain control of AAPT's fibre-optic network, which extends across six Australian states and territories, and is estimated to be 11,000 km in length.

[16] On 13 March 2015, TPG advised of its intent to take over Australia's third Largest ISP iiNet at A$8.60 per share, giving a value of $1.4 billion.

[21] On 17 September 2013, during TPG's financial year results presentation, it was announced that the company plans on constructing fibre to the Building (FTTB) networks, capable of offering a bandwidth of 100 Mbit/s, in five major capital cities.

TPG was also expected to provide street level coverage nationwide within 18 months of the start date.

[29] On 30 June 2020, as part of the Vodafone-TPG merger, the Singapore operations were spun off into an independent entity, Tuas Limited.

[31] In December 2021, TPG won 10MHz of the 2.1GHz frequency spectrum in the government auction, allowing it to deploy its 5G network across the island.

[49] In response, TPG released a statement saying that it believes all costs were adequately noted in the advertisement and that it was "disappointed" with the ACCC's decision to bring the issue to court.