Jim McKelvey

McKelvey is the co-founder of Square, a new mobile payment platform. His co-founder is Jack Dorsey, best known as the creator of Twitter. Jim McKelvey cofounded payments firm Square with Jack Dorsey in 2009 after he had trouble selling a $2,000 art piece from his studio. McKelvey remains on Square's board, but has started a new company, Invisibly, which powers micropayments for journalism and publishing. He still owns a 5% stake in Square and has netted at least $270 million from selling Square shares. A serial entrepreneur, he has started at least seven companies, ranging from a CD cabinet maker to a glass-blowing studio. He also sits on the board of the Federal Reserve Bank of St. Louis and started a nonprofit, LaunchCode, to teach people how to program. Bachelor of Science, Washington University in St. Louis; Bachelor of Arts/Economics, Washington University in St. Louis