Jack Dorsey
Jack Dorsey is an American businessman and web developer born in 1976 in St. Louis, Missouri. He is the co-founder of Twitter as well as the CEO and founder of the mobile payments company Square. He ranked as one of the top 35 innovators in the world under 35 years of age by Technology Review TR35. The Wall Street Journal honored him with the Innovator of the Year Award for technology in 2012.