Larry Ellison is chairman, chief technology officer and cofounder of software giant Oracle, of which he owns about 35.4%. He gave up the Oracle CEO role in 2014 after 37 years at the helm. Oracle has grown in part through steady acquisitions of software companies, the biggest of which was $9.3 billion for Netsuite in 2016. In May 2016, Ellison pledged $200 million to the University of Southern California for a cancer treatment center.

In 2012, Ellison spent $300 million to buy nearly all of Hawaiian island Lanai; so far, he has built a hydroponic farm and a luxury spa there. Ellison joined Tesla's board in December 2018, after purchasing 3 million Tesla shares earlier that year.