Anthropic is constructing a cross‑product ecosystem similar to those that made Amazon and Uber extremely sticky, and its recent S‑1 suggests the approach is paying off. More than half of customers who spend at least $100,000 a year now use both the Claude platform and a first‑party application such as Claude Code or Cowork, up from roughly 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 filing submitted to the Securities and Exchange Commission on Monday states.
As of September 30, Anthropic reported over 11,900 customers with annual spend of $100,000 or more, more than 1,900 customers spending at least $1 million, and about 250 customers whose yearly spend exceeds $10 million. The company attributes the momentum to “significant usage expansion as customers realize the value of deploying Claude across their organizations,” which produced net revenue retention of roughly 900 % at the close of the third quarter.
Rejecting the notion of a static SaaS product, Anthropic positions Claude as “frontier AI with rapidly advancing capabilities” that span the models, the developer platform, and the end‑user applications. “An advance at any layer compounds across all three layers, accelerating the pace at which we can deliver more capable intelligence,” the filing reads, calling this integrated approach the reason more customers adopt both the Claude platform and the first‑party apps.
The strategy mirrors the playbooks of Uber and Amazon. Uber started with rides before adding food delivery and freight, while Amazon used its cloud services to sell storage, databases and other tools, making it harder for customers to leave. Anthropic can follow a similar path: a business that begins with the API can later roll out Claude Code for engineers and then Cowork for a broader workforce, turning those users into higher‑value customers. In the third quarter, the top‑spending 5 % of Claude Enterprise customers who also used Claude Code spent about twenty times as much per month as the average enterprise user who did not use the coding tool, according to the filing. This highlights the potential for per‑user spend growth and explains why Anthropic wants its applications to reach accounts that initially adopt the API.
The company says it fuels organic diffusion by investing in Applied AI teams. An internal Applied AI group works with startups and enterprises to embed Claude into existing tech stacks, and Anthropic recently launched a venture with Blackstone and other private‑equity firms, called Ode with Anthropic, to place forward‑deployed engineers in businesses to build custom AI tools using Claude.
Anthropic also relies on third‑party distribution partnerships with the hyperscalers AWS, Google Cloud and Microsoft Azure. Under a “joint go‑to‑market approach,” Anthropic retains the direct contract with customers and pays each cloud provider a fee, a structure it says helps avoid channel conflict and allows it to set pricing.
The budding stickiness strategy may become critical as the AI firm aims to constantly “reinvent our business” by launching “new classes of products whose aim is to dwarf the economic value of our existing ones.” The filing notes that Anthropic will devote less effort than a typical company to “entrenching our current products and business models” and more effort to defining new ones.
The prospectus also points to challenges despite strong revenue growth of $16.3 billion for the first half of 2026, up from $1.2 billion in the same period a year earlier. The cloud partners that help sell Claude are increasingly seeing Anthropic as a competitor, which could make it harder to secure the compute power needed from them. The filing warns that Amazon, Google and Microsoft may prioritize their own needs or those of rivals they have invested in.
Customer concentration is another risk. “Any adverse change in demand from our largest customers could adversely affect our business and prospects,” the risk factors section reads. “A significant reduction in spending by, or the loss of, one or more of our largest customers, if not offset by new customer relationships or increased business from our other existing customers, could adversely affect our business, financial condition, and results of operations.”
Anthropic did not immediately respond to TechCrunch’s request for comment.