Larry Ellison

Lawrence Joseph Ellison (born 17 August 1944) founded Software Development Laboratories with Bob Miner and Ed Oates in June 1977 and turned it into Oracle. His place in computing history rests on one thing: he took a relational model that had stayed inside research papers and shipped it as a product other companies were not willing to build.

One correction first. Ellison is not Oracle's CEO. On 22 September 2025 Oracle announced Clay Magouyrk and Mike Sicilia as chief executive officers and Safra Catz as Executive Vice Chair of the board. Oracle's Form 10-K for the year ended 31 May 2026 lists him as "Executive Chair of the Board of Directors and Chief Technology Officer".

1977 — Software Development Laboratories

Oracle's own thirtieth-anniversary timeline, published in its magazine Profit in May 2007, records it: "1977 Software Development Laboratories, the precursor to Oracle, is founded by Larry Ellison, Bob Miner, and Ed Oates." The three were colleagues at Ampex, and the starting point was a paper Ellison read — Codd's relational model. The product name came from elsewhere: by the same timeline's account, the database was named after the CIA project the three had worked on at the beginning of their association. It would be years before the name was also the company's.

V1 ran on a PDP-11 under RSX in 128K of memory in 1978 and was never officially released. V2 shipped in 1979 and the company became Relational Software, Inc. The year of the later rename to Oracle Systems is genuinely unsettled: Oracle's own timeline says 1982, most secondary accounts say 1983.

The texture of the early company survives in an interview in that same Oracle publication with Bruce Scott, co-architect of the first three versions of the database. "I've thought a lot about why Oracle was successful," Scott said. "I really think that it was Larry Ellison." There was nowhere to run cable to the machine room next door, so Ellison put a hammer through the wall — "It's just the way he thinks—make a hole, make it happen somehow."

Thirty-seven years as CEO, with gaps in the chairmanship

The FY2026 Form 10-K gives the biography: "He served as our Chief Executive Officer from June 1977, when he founded Oracle, until September 2014. He has served as a Director since June 1977." Thirty-seven years in the chief executive's seat is exceptional for a large American company.

What is easy to miss is that the chairmanship was not continuous. The same paragraph adds: "He previously served as our Chairman of the Board from May 1995 to January 2004." For the first eighteen years he was not chairman, and he was not chairman again between 2004 and 2014. The unbroken lines are the CEO title until 2014 and the board seat held since June 1977.

What he bought was cut down in court

Under Ellison, Oracle became a company that grew by acquisition rather than invention. The heaviest item in his personal record is the acquisition of Sun Microsystems, completed on 27 January 2010, which brought Java and MySQL under Oracle's control.

The eleven-year suit Oracle then brought against Google over Java ended on 5 April 2021, when the Supreme Court of the United States held that Android's copying of roughly 11,500 lines of the Java SE API was fair use. The finding came from a court, not from a regulator. MySQL, meanwhile, had already been forked into MariaDB before the Sun deal closed. Control over the assets he bought has been trimmed from both directions — by judgment and by forking.

Outside Oracle

The one outside directorship in the filings is Tesla's. Tesla's Form 8-K records that on and effective 27 December 2018 the board increased its size from nine to eleven and appointed Larry Ellison and Kathleen Wilson-Thompson as independent directors. English Wikipedia records that he left the Tesla board in August 2022 — nearly four years in which a software founder of the previous generation sat on the board of Elon Musk's company.

2025 onward — infrastructure next to politics

On 21 January 2025 Ellison stood at the White House with Sam Altman and Masayoshi Son for the announcement of Stargate. That September he handed the chief executive's job to two successors and stayed on the technical side as CTO. The decision to convert a database company into a supplier of AI compute — a business whose fortunes now turn partly on government decisions — was taken with the founder still in the room.

The man who in 1977 productised a paper nobody else would commercialise was, half a century later, on the platform announcing national-scale computing infrastructure. Same company, same person. Very little in computing history matches that continuity.