9. Elaine Wynn

$2.6 Billion

Elaine Wynn is the largest shareholder of Wynn Resorts, a resort company she and her ex-husband founded in 2002. Prior to that, the then couple launched Mirage resorts in 1973 in Las Vegas after she graduated from college. She served on the board of Wynn Resorts for 13 years until 2015 and is largely known as the “Queen of Las Vegas,” according to the report.