Jacqueline Badger Mars
With her two brothers, Jacqueline Mars owns Mars Inc., the world's second-largest confectionery. The company manufactures candy (M&M's, Milky Way, Snickers), chewing gum (Juicy Fruit, Orbit, Extra), pet chow (Pedigree, Royal Canin, Whiskas) and packaged foods (Uncle Ben's, Suzi Wan). The closely held
company has annual revenue of more than $30 billion.