Tyler Howard Winklevoss is an American investor and entrepreneur, currently serving as the Co-Founder and CEO of Gemini, a cryptocurrency exchange. Alongside his identical twin brother Cameron Winklevoss, he also co-founded Winklevoss Capital Management, an investment firm. Prior to his ventures in finance and technology, Winklevoss was an Olympic rower, competing in the men's pair event at the 2008 Summer Olympics with his brother.