The SF Bay Area holds 26% of global unicorn market cap, and 53% of that total sits inside the United States. Three US cities, SF, New York, and LA, account for 40% of all unicorn value worldwide. SF now controls 81% of generative AI unicorn market cap. The data, pulled from CB Insights on July 20, 2023, covers valuations based on last-round pricing, many of them frozen at inflated 2021 numbers.
The most important concept in this analysis is the 'ZIRPacorn': a unicorn that crossed the $1B threshold only because ZIRP-era multiples made it possible. Cities hosting exactly one unicorn doubled from 37 to 75 in four years. That spread looks like decentralization. It is not. Meanwhile, single companies dominate entire city totals: Bytedance is 58% of Beijing's $387B, SpaceX is 62% of LA's $222B, and Shein is 64% of Shenzhen's $157B. NY grew from 5% to 8% global share, driven by crypto and fintech. China continued to lose share.
The full piece is worth reading for the Barry's Bootcamp ratio alone: SF Bay Area posts 48 unicorns per Barry's location, a blunt measure of real startup density versus perceived startup culture. The authors also break down how Miami and Austin underperform their reputations, and why LA's defense and space cluster, Anduril, SpaceX, Relativity, may be a signal rather than an outlier. The generative AI concentration in SF is early-stage data, but 81% is a hard number to ignore.
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