Since Bitcoin’s emergence, cryptocurrencies have managed to cement themselves as one of the most exciting – yet unpredictable – avenues for savvy investors to carve out billion dollar enterprises.

With that new paradigm comes a new class of investor – and leading the pack are five noteworthy individuals who’ve succeeded in earning millions of dollars with new cryptocurrency plays.

Cameron and Tyler Winklevoss

The Winklevoss’ Twins might be best known for their tussle with Facebook’s Mark Zuckerberg in a lawsuit best depicted in the 2010 film The Social Network, but the two brothers also have staked an enormous claim to fame with Bitcoin; CoinInsider reveals that in 2011, both twins elected to buy Bitcoin, and subsequently today are thought to own 1% of all Bitcoin in circulation; providing them with a minimum estimated net worth of $900 million – $1.1 billion USD.

The twins have further built a cryptocurrency ecosystem to attract both new investors and seasoned traders to cryptocurrency; the brothers have launched Gemini, which is now the world’s first exchange for cryptocurrencies and have further applied to set up a Bitcoin ETF.

Michael Novogratz

Novogratz is often regarded for his accurate Bitcoin price predictions. Having previously served as a principle and board member for Fortress Investment Group, Novogratz was formerly the Chief Investment Officer of the Fortress Macro Fund.

Today, the business mogul serves as both an investor in and CEO of Galaxy Investment Partners, a $500 million cryptocurrency fund, which includes $150 million USD of his own capital.

Today, Novogratz leads investments in emerging blockchain startups, and has reportedly staked some 30% of his fortune in cryptocurrencies; contributing to a reported net wealth in the range of $700 million – $1 billion USD.

Blythe Masters

A former managing director at JPMorgan Chase & Co, Masters today serves as the CEO of Digital Asset Holdings; a firm which builds encryption-based processing tools that empower securities trading.

Masters has little sentimentality about the future success of cryptocurrencies, and has instead pivoted her business to focus on the development of blockchain-powered payment tools.

Under Masters’ leadership, Digital Asset Holdings has raked in some $60 million USD in funding and has even attracted investments from the likes of JPMorgan Chase, Citibank, and Goldman Sachs.

Joseph Lubin

Before entering the cryptocurrency world, Joseph Lubin served as the vice president of technology for the private wealth management division of Goldman Sachs.

In the years since, Lubin might be most recognisable for the fact that he co-founded Ethereum in conjunction with Vitalik Buterin, and further initiated ConsenSys – a new blockchain app development firm.

In-between helping set up the Ethereum Foundation, Lubin further operates ConsenSys Ventures – a venture capital firm that invests in new, decentralized blockchain applications.

Lubin is estimated to have a net worth in the range of $1 billion – $5 billion USD.

Chris Larsen

Ripple’s XRP might well be considered one of the leading cryptocurrencies thanks to its role as a payment settlement network that has found a warm embrace in the hands of banks around the world.

Serving as the co-founder and Chairman of Ripple, Chris Larsen leads the development of the Ripple platform as a leading enterprise blockchain solution for global settlements.

Prior to his involvement in Ripple, Larsen served as the CEO of Prosper, a peer-to-peer lending service.

Larsen is potentially the wealthiest figure in cryptocurrency, and has a reported net worth in the range of $7.5 billion – $8 billion USD.