Musk is CEO of Tesla and rocket firm SpaceX, and chairman and chief technology officer of xAI Holdings... Ellison cofounded software firm Oracle in 1977 and ran it as CEO until 2014; he now serves as chairman... and chief technology officer of the company.... Through his Bezos Expeditions he has invested in an array of companies, including Airbnb and software... Dell's cloud software arm, VMware, was spun off in 2021; Microchip firm Broadcom bought it in 2023 for...