$965 billion: the number that changes everything
On June 1, 2026, Anthropic confidentially filed its S-1 prospectus with the SEC — the formal first step toward going public. The implied valuation sits at $965 billion, surpassing OpenAI's $852 billion from March.\n\nFour days before the filing, Anthropic closed a $65 billion Series H round — the largest private funding round in tech history. The IPO window is estimated around October 2026, market conditions permitting.\n\nThe question that matters to enterprise Claude users isn't how much Anthropic is worth. It's what changes in practice.
The numbers that matter: from $4B to $50B in two years
Anthropic's numbers are staggering by any standard. Annualized revenue was $4 billion in July 2025. By January 2026, it had passed $9 billion. The projection for Q2 2026 is $10.9 billion — more than the entire 2025 annual revenue in a single quarter.\n\nGrowth is driven primarily by enterprise adoption. Over 300,000 businesses use Claude, with 100,000+ running it on Amazon Bedrock. 80% of revenue comes from business customers, not consumers. This is a critical distinction: Anthropic isn't a consumer company trying to monetize traffic. It's an enterprise vendor with recurring revenue.\n\nAnthropic is also on track for its first profitable quarter, with a projected operating profit of $559 million. For an AI company that was burning cash at breakneck speed just a year ago, this is a paradigm shift.
What this means for companies using Claude
When a technology vendor goes public, enterprise customers ask a legitimate question: does this change anything for me?\n\nThe short answer is yes, and for the better. An IPO brings three concrete consequences for enterprise clients.\n\nFirst, financial stability. A public company has transparency obligations, public financials, and constant pressure to maintain enterprise revenue. The risk that Anthropic shuts down, pivots strategy, or gets acquired drops dramatically.\n\nSecond, infrastructure investment. IPO proceeds will fund data centers, international expansion, and enterprise platform development. For Claude Enterprise users, this means more capacity, more features, and better SLAs.\n\nThird, long-term commitment. A public company cannot afford to abandon enterprise customers. Multi-year contracts, service guarantees, and dedicated support become even more solid.
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Context: Milan, Europe, and the Italian market
The IPO arrives at a strategic moment for the Italian market. On May 27 — five days before the S-1 filing — Anthropic opened its Milan office, the sixth in Europe after London, Dublin, Paris, Zurich, and Munich.\n\nAnthropic's EMEA revenue has grown 9x year-over-year. The number of large enterprise accounts in the region has increased 10x. Italy is not a secondary market for Anthropic: it's a strategic priority, with focus on financial services, manufacturing, and consumer goods.\n\nFor Italian companies evaluating Claude adoption, the Milan office and the IPO send the same signal: Anthropic is here to stay, with resources and structure to support large-scale enterprise implementations.\n\nWe covered this in detail in Anthropic opens in Milan: what changes for Italian companies.
Anthropic vs OpenAI: the IPO race
Anthropic beat OpenAI to the punch. While OpenAI is still restructuring — transitioning from non-profit to for-profit — Anthropic filed its S-1 first.\n\nThe difference isn't just timing. It's positioning. OpenAI built its business on the consumer brand (ChatGPT). Anthropic built on enterprise. 80% of revenue comes from business customers. This distinction matters for investors and customers alike.\n\nFor businesses, competition between the two means one thing: more investment, more innovation, more competitive pricing. The release of Opus 4.8 with dynamic workflows and fast mode at three times lower cost is a concrete example of how competitive pressure translates into client benefits.
What to do now if your company uses Claude
If your company already uses Claude, the IPO doesn't require immediate action — but it's the right time for three considerations.\n\nFirst: review your contract. If you're on a Team or Pro plan, this may be the time to negotiate an enterprise agreement. Pre-IPO pricing tends to be more favorable than post-listing, when the company faces quarterly earnings pressure.\n\nSecond: plan your expansion. With the Milan office and local support, deploying Claude in new departments or processes becomes easier. If you have a working pilot, it's time to scale.\n\nThird: document your results. Companies that can demonstrate concrete ROI from Claude usage will be in a privileged position to negotiate better terms and access dedicated enterprise programs. If you haven't started measuring yet, now is the time: AI ROI: how to measure it.