Lawrence Joseph Ellison is an American businessman and entrepreneur, best known as the co-founder of Oracle Corporation. He served as Oracle's chief executive officer from 1977 to 2014 and currently holds the positions of Chief Technology Officer and Executive Chairman. As of October 2025, Ellison is a centibillionaire and the second-richest person in the world, having briefly been the wealthiest person on September 10, 2025, with an estimated net worth of $393 billion.