The cofounders of software company Atlassian, Michael Cannon-Brookes and Scott Farquhar, each donated $770,000.
On December 27, real estate billionaires John and Pauline Gandel donated $690,380 to a group of organizations involved in the relief efforts.
Total donation: $690,380 ($1 million AU)
Net worth: $3.8 billion (John Gandel)
The gift will be split between the Australian Red Cross, the Salvation Army, and St Vincent de Paul Society, The Sydney Morning Herald reported.
Pauline Gandel made in headlines last January when she criticized other ultra-wealthy Australians for not giving away more of their wealth while receiving an award on Australia Day in 2019, The Financial Review reported. "I hope to inspire others to be generous and improve our society," Pauline Gandel told The Financial Review.
John Gandel built the couple's $3.8 billion fortune running women's clothing retailer Sussan, but later pivoted to commercial real estate, according to Forbes. The billionaire is now part-owner of Melbourne megamall Chadstone.
On January 8, Gina Rinehart said she "privately" donated after being called out on Twitter.
Total donation: unspecified
Net worth: $15.6 billion
Barber called out Rinehart by name for not making a public donation. "Hey Gina Rinehart where the hell are you and all your money?! If you're in Hawaii on a family holiday I'm going to flip a f------- table," Barber tweeted.
Rinehart responded to the attack through a spokesperson, saying that she had made a private donation. "(Mrs. Rinehart) is most concerned that the true causes of this sad devastation are tackled, rather than missed in the rush to blame climate change," the spokesman said in a statement to The Daily Mail January 8 that also mentioned regulations on building dams and land clearing.
Rinehart, the executive chairman of iron miner Hancock Prospecting, has a $15.6 billion fortune and is the richest person in Australia, according to Forbes.
On January 9, Andrew Forrest made what is believed to be the largest private donation by an Australian to relief efforts.
Total donation: $48 million ($70 million AU)
Net worth: $8.9 billion
The Western Australian-based billionaire pledged to donate $70 million through his philanthropic organization, Minderoo Foundation, Business Insider Australia reported.
The first round of funds, $10 million, will be spent immediately on disaster relief efforts, Business Insider Australia reported. The rest will be used to organize volunteers and fund future fire prevention efforts.
"We recognise that we don't have all the answers, but we want to understand what communities need and do our bit to help them now and as they regroup in the coming months," Forrest said, according to Business Insider Australia.
Forrest built his fortune off Minara Resources, the mining company he founded in 1994, according to Forbes.