Jeff Bezos

Jeff Bezos hasn't run Amazon day-to-day since 2021, but his roughly 9% stake means the company's fortunes are still his fortune — and AWS's AI-cloud business had a very good run through 2024 and 2025, which is most of why his net worth climbed back toward $200 billion. Blue Origin remains the more personal project, the one he talks about like a mission rather than a business. He also owns the Washington Post, a much smaller and much more scrutinized asset.