The richest man in the world in 2025 is Larry Ellison, co-founder of Oracle, with a net worth estimated at around $429 billion as of September 2025. He recently surpassed Elon Musk, who had been the richest for much of the year, with an estimated net worth slightly below Ellison's. Elon Musk, CEO of Tesla and SpaceX, has been a close contender with a net worth around $379 billion to $384 billion earlier in the year but is currently second richest. Other notable billionaires include Mark Zuckerberg, Jeff Bezos, and Bernard Arnault, but Larry Ellison currently holds the top position.