October 2026 global startup funding roundup venture capital deals

October 2026 Global Startup Funding Roundup: 20 Deals Every Founder Must Know

November 5, 2026
October 2026 startup funding broke records across AI, fintech, and deep tech. The biggest startup deals October 2026 ranged from OpenAI’s $20 billion mega-round to a $15 million seed for a climate health startup. This roundup covers 20 verified deals that shaped the global startup funding landscape last month, with every figure sourced from public

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