Anthropic is constructing a cross-product ecosystem similar to the models used by tech giants like Amazon and Uber to ensure high customer retention, and its recent S-1 filing indicates this strategy is proving effective. As of the filing date, more than half of customers spending at least $100,000 annually are now utilizing both the Claude platform and a first-party application such as Claude Code or Cowork, a significant increase from approximately 30% at the end of the previous year.
The speed and depth of our enterprise customer adoption are powerful evidence of Claude’s position at the frontier of AI, states the S-1 document filed with the Securities and Exchange Commission on Monday.
Financial figures reported as of September 30 show Anthropic has amassed over 11,900 customers spending at least $100,000 annually, more than 1,900 customers spending upwards of $1 million, and roughly 250 customers spending $10 million or more.
The company attributes this momentum to a significant usage expansion as customers realize the value of deploying Claude across their organizations, which resulted in a net revenue retention rate of approximately 900% by the end of the third quarter.
In a critique of the traditional legacy SaaS industry, Anthropic positions Claude not as a static product that serves a single use case, but as frontier AI with rapidly advancing capabilities spanning models, the developer platform, and 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 explains, describing this integrated approach as the primary reason more customers utilize both the Claude Platform and first-party apps.
This business model mirrors established tech giants; just as Uber expanded beyond rides to include food delivery and freight, or Amazon used cloud computing to introduce storage and databases, Anthropic allows businesses starting with the API to adopt Claude Code for engineers and Cowork for the workforce.
These app users are significantly more valuable. According to the filing, the highest spending 5% of Claude Enterprise customers who used Claude Code spent about 20 times as much per month as the average enterprise user who did not use the coding tool, highlighting the potential for per-user spend growth.
To amplify this organic growth, Anthropic is investing in Applied AI teams that assist startups and enterprises in integrating Claude into existing technology stacks. The company also launched Ode with Anthropic, a venture with Blackstone and other private equity firms, to embed forward-deployed engineers into businesses to build bespoke AI tools.
Additionally, Anthropic relies on partnerships with hyperscalers like AWS, Google Cloud, and Microsoft Azure. Through a joint go-to-market approach, Anthropic maintains direct contracts with customers and pays cloud providers a fee, a structure the company claims avoids channel conflict and allows for flexible pricing.
This stickiness strategy may become crucial as the AI giant aims to reinvent our business by releasing new classes of products whose aim is to dwarf the economic value of our existing ones. The filing notes the company plans to focus less on entrenching current models and more on defining new business horizons.
However, the filing outlines potential headwinds. Despite generating $16.3 billion in revenue for the first half of 2026, up from $1.2 billion in the prior year, cloud partners like Amazon, Google, and Microsoft increasingly view Anthropic as a competitor, which could complicate the company's access to necessary computing resources. The filing warns that these providers may prioritize their own needs or rival investments.
Customer concentration represents another major risk factor. Any adverse change in demand from our largest customers could adversely affect our business and prospects, reads the risk factors section. It warns that a significant reduction in spending or loss of a major client could severely impact the company's financial condition and operations if not offset by new relationships.
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