Anthropic: From Startup to Near-Trillion-Dollar Company in 28 Months

SignalMoss  ·  Tech & AI  ·  May 18, 2026

$30B $24B $18B $12B $6B $0

Annualized revenue run rate (ARR). Source: Anthropic / VentureBeat.

Anthropic (current)
~$900B
Agreed in principle, May 2026. Round co-led by Dragoneer, Greenoaks, Sequoia, Altimeter. Not yet closed.
OpenAI
~$852B
Most recent private-market valuation. Previously held the top private AI company ranking.
Anthropic (Feb 2026)
$380B
Series G valuation, closed February 2026. At the time, the second-largest venture deal in history.
Anthropic (mid-2024)
~$18B
Approximate valuation at mid-2024 fundraise. The company has added roughly $880B in private-market value in under two years.
January 2024
$87M annualized run rate
Claude 2 powering early API adoption. Consumer product still nascent.
December 2024
$1 billion ARR
Claude 3 family drives enterprise uptake. First major Fortune 500 contracts close.
End of 2025
$9 billion ARR
9x growth over calendar year. Claude Code launches and begins contributing meaningfully to revenue mix.
February 2026
$14B ARR & $380B valuation
Series G closes at $380B. Described at the time as the second-largest venture deal ever. PwC partnership announced shortly after.
March 2026
$19 billion ARR
1,000+ customers now spending $1M+ annually. Claude Code enterprise share passes 50% of the product's total revenue.
April 2026
$30 billion ARR — passes OpenAI
Annualized revenue surpasses OpenAI's disclosed figure. 300,000+ business customers on the platform.
May 2026 (pending)
$30B raise at ~$900B valuation
Terms agreed in principle. Co-led by Dragoneer, Greenoaks, Sequoia, Altimeter. Expected to close by end of May.

Sources: Bloomberg · VentureBeat · The AI Corner · SignalMoss editorial research, May 18, 2026