Lynsi Snyder

Lynsi Snyder is the heir to beloved West Coast chain In-N-Out Burger, which her grandparents founded in 1948.

She became a billionaire in 2017 on her 35th birthday, when she received the final portion of her inheritance, an additional stake in the chain.

Snyder's uncle and father, both previous In-N-Out presidents, died young; age 17 in 1999, Snyder was the last family heir.

She steadily received stakes in the business for a decade as part of a complex trust created by her grandparents.

Snyder took on the top job of president in 2010 and has since expanded the number of In-N-Out restaurants by more than 150 locations.