Dorrell worked at
Macquarie Group, and at 2001 at age 25 moved from the company's Sydney headquarters to work in the United States. He stated that the company "didn’t take the U.S. all that seriously", and "that's why a 25-year-old kid could be sent over here and be one of six people looking at this whole market". In April 2025,
Forbes estimated Dorrell's net worth at US$8.5 billion. The
Wall Street Journal reported that Dorrell bought Tarpon Island, the only private island in
Palm Beach, Florida for $150 million. ==References==