388. Jane Lauder
$2 billion Self-made Score: $ Source: estee lauder age: 44 residence: new York city B.a., Stanford ’95 The sisters each own just over 4% of the publicly traded cosmetics giant founded by their grandmother Estée Lauder. Both have been with the company since soon after they graduated from college in the 1990s. Aerin, who met her husband in college, is the company’s style and image director. She also has her own eponymous lifestyle brand, which sells handbags, home decor, dishes and lamps. Jane runs its Clinique unit, a mall-staple skin-care line. She joined the board in 2009 and serves alongside 3 family members, including their father, Ronald (No. 186), and cousin and executive chairman William Lauder (his estimated net worth: $1.4 billion).