Wade L'Estrange started the City Slickers Appeal two years ago when his godfather's farm at Willow Tree in the New England district lost 40 head of cattle due to the drought.
"I was heading up there with a bale of hay worth around $250 and just on spec I posted an appeal for community help," he said.
"By that weekend I had two truck-loads of feed and gifts worth around $11,000 - and I realized just how generous Australians can be in times of trouble."
The not-for-profit charity and has now raised more than $270,000.
On Wednesday the small charity set up to help bushfire and drought victims received $10,000 donation from Komatsu Australia at the heavy machinery expert's Fairfield headquarters.
The money will go straight to badly affected bushfire victims in the Bega Valley village of Cobargo.
Komatsu Customer Service specialists team member Lisa Seng said the City Slickers Appeal "stood out" when along with colleague Paul Clancy they were looking for a cause to support for their company's Live Your Dream program.
"We all know or know of people who've been affected by the bushfires," said Lisa, who along with 30 members of Komatsu's Customer Support Team had intended to back up their Live Your Dream donation with a major working bee in Cobargo before COVID-19 hit.
"Our hope is to go to Cobargo as soon as COVID -19 allows and to do all those things we planned,"
Mr L'Estrange said: "We're all incredibly grateful to Lisa, Paul and their colleagues. Hopefully it may be the first of even more support to come from corporate Australia."