Anthropic S-1 Shows Majority of Big Customers Use Multiple Claude Tools

Anthropic's initial public offering filing, submitted to the Securities and Exchange Commission on Monday, reported that more than half of its customers spending at least $100,000 a year now use both the Claude platform and a first-party application such as Claude Code or Cowork, according to TechCrunch. That figure stood at roughly 30% at the end of last year, the filing found.

How Many Customers Fall Into Each Spending Tier?

As of September 30, Anthropic recorded more than 11,900 customers spending $100,000 or more annually, more than 1,900 spending upward of $1 million, and about 250 spending $10 million or more, per the S-1 cited by TechCrunch. The filing did not break out how these tiers overlap with the cross-product adoption rate.

What Does the Filing Say About Revenue Retention?

Anthropic reported net revenue retention of about 900% as of the end of the third quarter, a figure the company attributed to what the filing called "significant usage expansion as customers realize the value of deploying Claude across their organizations." The S-1 described Claude not as "a static product that serves a single use case," but as spanning three layers — models, a developer platform, and first-party applications — adding: "An advance at any layer compounds across all three layers, accelerating the pace at which we can deliver more capable intelligence."

"The speed and depth of our enterprise customer adoption are powerful evidence of Claude's position at the frontier of AI."

How Much More Do Coding-Tool Users Spend?

In the third quarter, the highest-spending 5% of Claude Enterprise customers who also used Claude Code spent about 20 times as much per month as the average enterprise user who did not use the coding tool, the filing found, according to TechCrunch's review. The gap illustrates how much room Anthropic sees for per-user spending to grow once a customer adopts a second product inside the same account.

Timeline: From API Customer to Multi-Product Account

• End of 2025: About 30% of $100,000-plus customers used both the Claude Platform and a first-party app.
• Third quarter 2026: The highest-spending enterprise coding-tool users spent roughly 20x the average non-Code enterprise user per month.
• September 30, 2026: More than half of top-spending customers used both the platform and an app; customer counts reached 11,900-plus at the $100,000 tier.
• October 26, 2026: Anthropic's S-1 became public, detailing the strategy.

Anthropic also described an internal Applied AI team that works with startups and enterprises to embed Claude inside existing technology stacks, plus a separate venture with Blackstone and other private equity firms called Ode with Anthropic, per the filing.

What Should Readers Watch For Next?

• Whether the 900% net revenue retention figure holds as more customers mature past their first year on the platform.
• How regulators and investors read the Amazon- and Uber-style cross-selling comparison during the IPO roadshow.
• Additional detail in subsequent SEC amendments on how spending tiers map to product adoption.

The filing's self-comparison to Amazon's AWS expansion and Uber's move from rides into delivery and freight is the company's own framing, not an independent assessment, and the S-1 is subject to further amendment before any listing.