How a college dropout built a database empire and became the world's wealthiest person
Larry Ellison co-founded Oracle in 1977, transforming the software industry through aggressive sales and relational database technology. From his humble beginnings in Chicago to briefly holding the title of the world's richest individual in 2025, Ellison’s career is a study in relentless ambition, strategic acquisitions, and significant political influence.
Born in 1944, Ellison’s path to technology was unconventional. After withdrawing from the University of Illinois and briefly studying physics at the University of Chicago, he moved to California to work as a programmer. In 1977, he co-founded Software Development Laboratories with Bob Miner, Ed Oates, and Bruce Scott. Their initial project, a database for the CIA codenamed Oracle, was inspired by Edgar F. Codd’s research on relational data systems. By 1983, the company rebranded as Oracle Systems Corporation, cementing its identity around its flagship software.
Oracle’s rise was marked by intense competition and internal crises. In 1990, the company nearly faced bankruptcy due to an aggressive marketing strategy that booked future license sales as current revenue, forcing multiple earnings restatements. During the 1990s, Oracle battled rivals like Sybase and Informix for market dominance. Ellison’s leadership style was often confrontational, exemplified by his public rivalry with Informix CEO Phil White. Eventually, Oracle secured its position by acquiring competitors, most notably Sun Microsystems in 2010, which granted the company control over the MySQL database.
Beyond software, Ellison has cultivated a vast portfolio of interests, including owning 98% of the Hawaiian island of Lānaʻi and holding significant stakes in companies like Tesla and Paramount Skydance. His personal life and political involvement have also drawn attention, from his high-profile marriages to his substantial financial support for conservative political figures and causes. In 2026, he was appointed to a federal advisory board focused on science and technology policy.
Ellison’s wealth has fluctuated alongside his business ventures. In September 2025, a surge in Oracle stock briefly made him the world's wealthiest person, with an estimated net worth of $393 billion. Despite his immense success, he remains a polarizing figure, facing legal challenges ranging from insider-trading allegations in 2005 to a 2019 lawsuit regarding his support for Israeli projects, which was ultimately dismissed in 2024.
Source: Larry Ellison
