Anthropic overtakes OpenAI in number of corporate customers
According to new data from fintech firm Ramp, Anthropic has for the first time secured more verified enterprise customers than OpenAI.

What happened?
The fintech firm Ramp has reported in its May 2026 AI Index that Anthropic now possesses more verified enterprise customers than OpenAI. This marks the first time Anthropic has achieved this position according to Ramp’s analysis. The information is based on aggregated business data.
Key facts
| Datum för rapport | Maj 2026 |
|---|---|
| Källa till data | Ramp AI Index |
| Resultat | Anthropic har fler företagskunder än OpenAI |
”For the first time, Anthropic has more verified business customers than OpenAI, according to this month’s AI Index from the fintech firm Ramp.”
Why it matters
The development highlights a potential shift in market share for leading AI players within the B2B segment. Ramp’s AI Index provides insights into usage patterns and preferences among corporate clients, indicating a broader adoption of Anthropic among organisations.
Who is affected?
Companies using AI services from Anthropic and OpenAI are affected, as well as employees developing or implementing these solutions. Investors in the AI sector may also find the data relevant for future strategies.
What else you should know
Ramp is a fintech company offering corporate spending and data analysis tools. Their "AI Index" compiles data from their customer base to provide an overview of AI usage among businesses.
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