Fred Ehrsam, 25, Cofounder, Coinbase

Fred Ehrsam. Top 30 Under 30.

As Bitcoin gradually becomes a mainstream phenomenon, Coinbase is trying to make it easy to use. The former Goldman Sachs currency trader is attempting to build “the PayPal for Bitcoin”; Coinbase is trying to make cryptocurrency accessible to the everyday consumer and merchant. Has raised $30 million from high profile VCs like Andreessen Horowitz, making it the top-funded Bitcoin start-up.