Larry Ellison — $165 Billion

Larry Ellison, Oracle's co-founder, dominates as the most influential tech elder in the 2025 billionaires ranking, with his net worth surging to $165 billion. This growth is fueled by Oracle's explosive cloud infrastructure and AI data center contracts, including major AI training partnerships with Microsoft, OpenAI, and the US government. At 80 years old, Ellison's hands-on role in tech strategy outperforms #2 in active leadership among septuagenarian billionaires.