Payal Kadakia

With the launch of ClassPass in 2013, Kadakia created a next-generation gym membership that let users book an unlimited number of fitness classes at a variety of studios for a flat, month-to-month fee. Now in 39 cities and armed with $84 million in funding, the company is focused on profitability. In the past 15 months, ClassPass rolled out tiered packages and raised prices 50% in some markets. As Kadakia tries to balance the needs of partner studios and members, the classically trained dancer will have to show off her fanciest footwork yet.