Topzle Updated: Wikipedia source
John Desmond Singleton (born 9 November 1941) is an Australian entrepreneur. He built his success and wealth in the advertising business in Australia in the 1970s and 1980s, and later also had diverse investment interests in radio broadcasting, publishing and thoroughbred breeding and racing.
| Year | Financial ReviewRich List | ForbesAustralia's 50 Richest | ||
| Rank | Net worth (A$) | Rank | Net worth (US$) | |
| 2010 | $230 million | |||
| 2011 | ||||
| 2012 | ||||
| 2013 | $355 million | |||
| 2014 | ||||
| 2015 | ||||
| 2016 | 155 | $416 million | ||
| 2017 | $450 million | |||
| 2018 | 161 | $534 million | ||
| 2019 | 145 | $670 million | ||
| 2020 | 142 | $728 million | ||
| 2021 | 147 | $731 million | ||
| 2022 | 170 | $768 million | ||
| 2023 | 171 | $820 million | ||
| 2024 | $800 million | |||
| 2025 | 196 | $776 million | ||
| Legend | |
| Icon | Description |
| | Has not changed from the previous year |
| | Has increased from the previous year |
| | Has decreased from the previous year |