Anthropic’s S-1/A says over 50% of its customers with $100,000 or more of trailing revenue used both Claude Platform and at least one of its own applications in the third quarter of 2026, “up from approximately 30% for the three months ended December 31, 2025”. Applied to its count of more than 11,900 such customers, that is roughly 6,000, by our arithmetic.
Anthropic’s IPO roadshow video makes the same claim at 33:33, per its official captions: “Today, the majority of enterprise customers use both our platform and at least one of our products, up from 30% in the fourth quarter of 2025”. A copy of the video was posted on YouTube on 10 November by the channel @bunaul.
Anthropic’s IPO roadshow video, as posted on YouTube by the channel @bunaul on 10 November 2026. Its captions match the official video on ipo.anthropic.com/us word for word. Quotes in this piece are from the official captions, with timestamps.
Business Pill · Distribution Advantage
An evergreen explainer on how distribution compounds. It teaches the general idea only and does not discuss Anthropic’s customers.
The key insight: Anthropic’s S-1/A says over 50% of its customers with $100,000 or more of trailing revenue used Claude Platform and at least one of its own applications in the third quarter of 2026, up from about 30% in the fourth quarter of 2025: roughly 6,000 of more than 11,900 such customers, by our arithmetic.
The filing ties the shift to its two lines of business: “We believe the value of this integrated approach is reflected in the increasing number of customers that use both Claude Platform and our first-party applications”. By our arithmetic, the share rose about 20 percentage points in three quarters.
The video counts the base differently. At 36:05 it says “we had more than 11,900 enterprise customers, up nearly 8x from the start of the year”. The S-1/A gives the same 11,900 as customers with $100,000 or more of trailing revenue, “up from more than 950 as of September 30, 2025”, about 12.5 times in a year by our arithmetic.
By our arithmetic, nearly 8x from the start of the year implies roughly 1,500 such customers in January 2026; the video does not give that count. The filing also lists more than 1,900 customers at $1 million or more and “approximately 250 customers with $10 million or more of revenue on a TTM basis”. Fortune 500 spend is covered separately.
Share of Anthropic customers with $100,000 or more of trailing revenue that used Claude Platform and at least one first-party application, by quarter, per the S-1/A. The remainder is our arithmetic.
Bristol Myers, Rakuten and Accenture in the Video
The S-1/A says “Fortune 500 companies, including American International Group, Inc. and Bristol Myers Squibb, rely on Claude for mission-critical workflows”. In the video, a customer segment that begins at 13:24 calls the work “a huge win for BMS” and goes on: “We rolled it out across all 30,000 of our employees”. The captions do not name speakers.
The segment says a database question went “from what would have typically taken 1 to 2 months to get a simple question answered, to being able to get it in 4 to 5 minutes”. Taking a month as 30 days, that is roughly 8,600 to 21,600 times faster, by our arithmetic. Its reason for choosing Anthropic: “they had the most mature enterprise capabilities”.
The narration says that for Rakuten, “this means they’re shipping new features 4 to 5 times faster than their competitors”. A speaker describing Accenture’s security work says “we can now do scans that used to take days in under an hour”.
The filing lists the cloud route behind these accounts: Claude “is accessible on all three major cloud platforms”, and Anthropic establishes “direct contractual relationships with our customers while paying a fee to each CSP”. Margins from the video are in our margins piece.
The Structural Read
As we read the filing, the 30% to 50% move is the land-and-expand path made measurable: the same customers now buy the developer platform and a ready-made application, and the filing ties that to its integrated approach.
As we read the video, the customer clips show why the share matters to investors: a segment naming BMS describes a rollout to all 30,000 employees, and Rakuten is said to ship features 4 to 5 times faster than its competitors.
Anthropic IPO roadshow video (captions, 33:33), 10 November 2026
“Today, the majority of enterprise customers use both our platform and at least one of our products, up from 30% in the fourth quarter of 2025”
Three Implications
FOR CROSS-SELL Over 50% of $100,000-plus customers used Claude Platform and a first-party application in Q3 2026, up from about 30% in Q4 2025, per the S-1/A; about 20 points, by our arithmetic.
FOR THE BASE The S-1/A counts more than 11,900 customers with $100,000 or more of trailing revenue, up from more than 950 a year earlier; the video calls them enterprise customers, up nearly 8x from the start of the year.
FOR SPEED A segment naming BMS says a question that took 1 to 2 months now takes 4 to 5 minutes; roughly 8,600 to 21,600 times faster, by our arithmetic.
The framework states: “Enterprise vendors don’t sell software anymore—they sell irreversibility. The product is the interconnection.”
As we read it, a customer using both the platform and an application is more interconnected than one using either alone, which is what the S-1/A’s 30% to over 50% measures. The framework does not discuss the filing.
What Is Not Established
The filing gives the cross-use share, not the number of customers; roughly 6,000 is our arithmetic on the 11,900 count. The video calls the 11,900 enterprise customers while the filing counts customers with $100,000 or more of trailing revenue. The customer figures in the video are the speakers’ own and are not in the S-1/A; we link the 30,000 rollout to Bristol Myers Squibb because it sits in the segment that names BMS, which the captions do not label.
We read the YouTube upload as a copy of the official video because its captions match the official file word for word; @bunaul is not an Anthropic channel. Anthropic was not contacted for this piece.
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Anthropic’s S-1/A says over 50% of its customers with $100,000 or more of trailing revenue used Claude Platform and at least one of its own applications in the third quarter of 2026, up from about 30% in the fourth quarter of 2025. Its roadshow video adds a customer segment naming BMS that describes a rollout to 30,000 employees, and says Rakuten ships features 4 to 5 times faster than its competitors.
A note on sourcing. The cross-use shares and customer counts are from Anthropic’s S-1/A filed with the SEC on 10 November 2026. Video quotations are from Anthropic’s own captions file for its IPO roadshow video on ipo.anthropic.com, with timestamps; a copy posted on YouTube by @bunaul carries the same words. Customer counts derived from shares, and speed ratios, are our arithmetic. Anthropic was not contacted for this piece.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
