The San Francisco Bay Area now holds 91% of global generative AI private market cap, all within a one-hour radius. The Bay Area's overall share of global unicorn market cap hit 39% by December 31, 2025, up from 29% a year prior, and more than 4x any other city. The US added $1.2 trillion in unicorn market cap in a single year, bringing its global share to 65%, up from 44% in 2020. Europe surpassed China but sits at just 10%.
New unicorn creation collapsed. Only 300 new unicorns were minted between 2022 and 2025, versus 900 in the three years before that. But the unicorns that survived got much more valuable: total unicorn count grew 6% year-over-year while total market cap grew 33%. Gen AI is driving that gap. Gen AI unicorns grew valuation by an average of $2.2 billion per company in 2025, versus $0.4 billion for non-AI companies. Gen AI's share of total unicorn market cap went from 2% to 22% between 2024 and 2026.
The original piece by Shreyan Jain, published on Elad Gil's blog with CB Insights data, is worth reading for the city-level breakdowns: 6 of the Bay Area's top 10 unicorns are gen AI, 7 of New York's top 10 are fintech or crypto, and three LA companies, SpaceX, Anduril, and Relativity, account for 83% of LA's entire unicorn market cap alone. The cohort analysis comparing pre-2022 versus post-2023 unicorns makes the geographic concentration trend concrete and harder to dismiss.
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