Cover story on the rise of unicorns: 80+ private companies achieve valuations of at least $1B
The Age of Unicorns — Stewart Butterfield had one objective when he set out to raise money for his startup last fall: a billion dollars or nothing. If he couldn't reach a $1 billion valuation for Slack …
Context & Ripple Effects
Fortune put the unicorn on its cover when the herd was roughly 80 strong — a small enough club that Slack's Stewart Butterfield could make a $1 billion valuation a take-it-or-leave-it condition for his fundraise rather than a stretch target. The mechanics behind those marks were already visible: a survey of 37 unicorns found liquidation preferences protecting investors in every single funding deal examined, meaning the headline valuations and downside protection were being negotiated as a package.
Read forward, the cover story is the opening frame of a decade-long arc: CB Insights counted about 1,000 unicorns globally by early 2022, adding roughly two per day, and by 2025 a record 1,200 VC-backed unicorns had yet to IPO or be acquired, with Carta reporting fewer than 30% of the 2021 vintage raised funding in the prior three years.
First-order effects
- Butterfield's $1B-or-nothing stance shows the billion-dollar mark functioning as a negotiating floor for hot startups, while investors accept the high headline number but offset their risk through protective terms like liquidation preferences.
Second-order effects
- Rapid herd growth erodes the signal: once CB Insights counts unicorns in the hundreds added per year, $1B stops distinguishing elite companies and becomes a routine late-stage pricing benchmark, pressuring funds to chase rarer markers ($10B+) for differentiation.
Third-order effects
- If the pattern holds, the structural endpoint is a liquidity backlog rather than a wave of public listings: a record 1,200 unicorns still private with most recent-vintage companies unable to raise follow-on capital means paper valuations accumulate faster than exits can validate them, reshaping how venture returns are realized.
The trend: Unicorn status is completing its arc from scarce 2015 achievement to a default late-stage financing label, leaving the industry to manage a widening gap between private valuations and actual liquidity.