Elon Musk
CEO & Founder — SpaceXAI
Founder and CEO of SpaceX (2002), Tesla, and xAI (2023); owner of X. Co-founded OpenAI in 2015 (departed 2018). SpaceX acquired xAI in February 2026 (~$1.25T combined valuation) and went public in June 2026 (Nasdaq: SPCX, ~$1.95T market cap as of September 2026). Its Colossus cluster in Memphis is one of the largest AI training facilities in the world.
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