Investing.com - For all the recent concern about investors losing money on cryptocurrencies, some people have made enormous fortunes on digital currencies.We now know who the top 20 are, thanks to Forbes Magazine's first ever crypto rich list.It takes a mere $350 million to even make the list, which includes trailblazing entrepreneurs, investors and techies.The clear No. 1 is Chris Larsen, co-founder and former CEO of Ripple, the third largest cryptocurrency based on market capitalization. He owns 5.2 billion of Ripple's XRP coins. His wealth is estimated at $7.5 billion to $8.0 billion.Joseph Lubin is number two The co-founder of Ethereum, the second largest crypto by market cap, is worth $1.0 billion to $5.0 billion.Next is Changpeng Zhao, known as CZ., at $1.1 billion to $2.0 billion. CZ started Binance, the largest cryptocurrency exchange.Number four are the Winklevoss brothers, Tyler and Cameron, who are worth $900 million to $1.0 billion, thanks to their early investment in Bitcoin.Tied for fourth place is investor Matthew Mellon, who bought Ripple's XRP token early on.