David Bussau, founder of Opportunity International Australia, began life in an Anglican boys’ home and started his entrepreneurial journey at 15 with a rented hotdog stand. After building several successful businesses, he turned to aid work following Cyclone Tracey and an earthquake in Bali, where he realised traditional aid didn’t break poverty cycles. Pioneering microfinance, he gave a $50 loan to Indonesian farmer Ketut Suwiria, who built a thriving business and created jobs in his community. Inspired, Bussau founded Maranatha Trust and later partnered with Al Whittaker to form Opportunity International in 1979, which now supports millions in 30 countries. Though retired, he continues advising organisations and has been honoured with awards including the Order of Australia, Ernst & Young Entrepreneur of the Year, and Senior Australian of the Year.