Anthropic’s IPO filing reveals its strategy for keeping enterprise customers hooked

Anthropic is building the same kind of cross-product ecosystem that helped make tech companies like Amazon and Uber enormously sticky, and its S-1 suggests the strategy is working. More than half of customers spending at least $100,000 annually now use both the Claude platform and a first-party app like Claude Code or Cowork, up from about 30% at the end of last year. 

“The speed and depth of our enterprise customer adoption are powerful evidence of Claude’s position at the frontier of AI,” the S-1, filed with the Securities and Exchange Commission on Monday, reads. 

As of September 30, Anthropic recorded more than 11,900 customers spending at least $100,000; more than 1,900 customers spending upwards of $1 million; and about 250 customers spending $10 million or more annually. 

Anthropic attributes customer momentum to a “significant usage expansion as customers realize the value of deploying Claude across their organizations,” which drove net revenue retention of about 900% as of the end of the third quarter. 

Throwing shade at the entire legacy SaaS industry, Anthropic pitches Claude as not a “static product that serves a single use case,” but rather “frontier AI with rapidly advancing capabilities” spanning the models, the developer platform, and the applications users interact with directly.