UK and Germany among countries with highest ChatGPT enterprise customers, says OpenAI

The UK and Germany are among the countries with the highest number of ChatGPT enterprise customers outside the US, while the Netherlands and France are showing strong growth in business customer numbers, according to a new report from ChatGTP developer OpenAI.

OpenAI has published selective usage figures of its AI tools, which are now used by more than one million businesses, as it looks to drive up the number of businesses paying for its tools and help fund the hundreds of billions of dollars it needs to power its growth plans.

It also comes amid stiff competition from Anthropic and other AI labs for enterprise customers and concerns that AI investments are yielding poor returns for businesses.

The report said that the UK and Germany now rank among the largest ChatGPT enterprise markets outside of the US by customer numbers, but didn’t reveal specific numbers. 

It also shows that the Netherlands, growing 153 per cent year to November 2025, and France, growing 146 per cent year to November 2025, are among OpenAI's fastest-growing business markets, both above the global average of 143 per cent.

Germany was also singled out as one of the most active markets by message volumes.

Across all the businesses surveyed, OpenAI said its data showed that businesses' usage of its tools was shifting from chatbot and experimentation phase to core infrastructure work.

“Firms are beginning to reorganise work around AI, not just ask it occasional questions,” it said.

The data shows that enterprise users report saving 40 to 60 minutes per day and being able to complete technical tasks such as data analytics and coding, while 75 per cent of enterprises said they could do faster or higher quality work.

OpenAI also said that API usage by businesses has increased, with more than 9,000 organisations now processing over 10 billion tokens, and nearly 200 exceeding one trillion tokens.

The report draws on two data sets: usage data from among the one million business customers of OpenAI and an OpenAI survey of 9,000 workers across almost 100 enterprises documenting patterns of AI adoption.