As of my last knowledge update in January 2022, there were several individuals known as crypto billionaires, primarily due to their early investments in or contributions to the cryptocurrency space. Here are a few notable figures:

1. **Changpeng Zhao (CZ):** The CEO of Binance, one of the world's largest cryptocurrency exchanges, Changpeng Zhao, has amassed significant wealth through his involvement in the crypto industry.

2. **Vitalik Buterin:** As one of the co-founders of Ethereum, Vitalik Buterin holds a substantial amount of Ether (ETH). Ethereum's success has contributed to Buterin's wealth, making him one of the prominent figures in the crypto space.

3. **Chris Larsen:** Co-founder of Ripple Labs, the company behind the XRP cryptocurrency, Chris Larsen has been recognized as one of the wealthiest individuals in the crypto industry.

4. **Cameron and Tyler Winklevoss:** Known for their early involvement in Bitcoin and the founding of the Gemini cryptocurrency exchange, the Winklevoss twins have accumulated wealth through their crypto ventures.

5. **Barry Silbert:** Founder of Digital Currency Group, a company that invests in blockchain and cryptocurrency-related businesses, Barry Silbert is a key player in the crypto investment space.

6. **Brian Armstrong:** Co-founder and CEO of Coinbase, one of the largest cryptocurrency exchanges, Brian Armstrong has seen substantial success, particularly with Coinbase's IPO in 2021.

7. **Tim Draper:** Venture capitalist Tim Draper has been a prominent supporter of Bitcoin and other cryptocurrencies. His early investments in Bitcoin have contributed to his wealth.

It's important to note that cryptocurrency valuations are highly volatile, and the financial status of individuals can change based on market fluctuations. Additionally, new developments may have occurred since my last update, so it's advisable to check the latest information for the most accurate and current details.