Leonard Hasting "Len" Ainsworth AM (born c. 1923) is an Australian businessman, most widely known for founding Aristocrat Leisure, one of the world's largest gambling-machine companies.
[2] Ainsworth inherited a small business from his father and began making poker machines to boost revenues for his dental supplies and equipment manufacturing venture.
[3] Following a 1984 diagnosis of prostate cancer, Ainsworth sold Aristocrat, giving significant funds to his family, several members of which continue the tradition of philanthropy.
In 2018, Ainsworth was appointed as a Member of the Order of Australia (AM) for his impact on business and manufacturing as well as his service to the community through philanthropic contributions.
[1] In 2019, Ainsworth was ranked 42nd on the Forbes list of 50 wealthiest Australians, with an estimated net worth of US$900 million.