8. Jacqueline Mars
Country: United States
Net worth: $13.8 billion
Notable company: Mars, Inc.
Current position: Vice president, Mars, Inc.
Jacqueline Mars is the reigning queen of candy, with a slew of brands—including Snickers, Milky Way, M&Ms—that have become part of American life. Jacqueline is one of the few public faces of the Mars family—she attends society events, including for equestrian causes and arts benefits, and allows pictures to be taken of her.