Elon Musk — $400 Billion

Elon Musk reached a peak net worth of approximately $400 billion in early 2025, driven by Tesla's stock recovery, SpaceX's commercial launch dominance, and the continued growth of X (formerly Twitter). His appointment as head of the Department of Government Efficiency (DOGE) gave him unprecedented access to federal government operations, making him arguably the most politically powerful private citizen in modern American history. Forbes and Bloomberg both ranked him the world's wealthiest person through most of 2025.