UK courts Anthropic expansion in London as US defence clash creates opening for $380bn AI startup

UK Government Seizes Opportunity Amid US Tensions

The UK government is making a concerted push to attract Anthropic, the $380 billion artificial intelligence startup, as the company navigates a contentious dispute with the US Department of Defense 1

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. Staff at the Department for Science, Innovation and Technology have developed detailed proposals for the San Francisco-headquartered company, ranging from an office expansion in London to a dual stock listing 2

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. Prime Minister Keir Starmer's office has supported these efforts, with plans to present the proposals to Anthropic CEO Dario Amodei during his visit to the UK in late May 3

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The timing of Britain's courtship is strategic. The US defence clash escalated after Anthropic refused to compromise on AI guardrails that would prevent its Claude chatbot from being used in military applications, including autonomous weapons and surveillance 2

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. This stance led the US Department of Defense to designate the company as a supply-chain risk, prompting President Donald Trump to lambaste what he called "leftwing nut jobs at Anthropic" on Truth Social in late February 1

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London Mayor Joins Recruitment Drive

London Mayor Sadiq Khan personally wrote to Amodei just a week after Trump's social media outburst, pitching the UK capital as a "steadfast" base for the company 1

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. "I believe that London can provide a stable, proportionate and pro-innovation environment in which this kind of AI can flourish," Khan wrote. The letter underscores a broader UK strategy to position itself as a global hub for artificial intelligence development, particularly as governments worldwide race to build sovereign AI capabilities and reduce dependence on foreign AI companies 4

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Anthropics currently employs approximately 200 people in the UK, including 60 researchers, and last year appointed former Prime Minister Rishi Sunak as a senior adviser 1

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. The company's existing London office provides a foundation for potential Anthropic expansion in London, though UK officials acknowledge they lack a homegrown competitor to top US labs and have instead sought partnerships with leading groups.

Dual Stock Listing Remains Ambitious Goal

As Anthropic prepares for an Initial Public Offering as early as this year, UK officials have floated the idea of a dual stock listing in both London and the US 4

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. One person familiar with the government's proposals described this as "the dream," though they acknowledged it remains a highly unlikely scenario 1

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. UK Business Secretary Peter Kyle emphasized that the government's focus extends beyond listing to attracting talent and investment. "I set up the Global Talent Taskforce to assertively get out there and sell all the benefits of investing, innovating and scaling in the UK," Kyle told the Financial Times 1

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Competition Intensifies in London's AI Landscape

Anthropics faces competition even in London, where OpenAI committed in February to significantly expand its presence, making the city its biggest research hub outside the US 1

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. Google has also built substantial infrastructure in the UK capital since acquiring DeepMind, the AI research lab founded by Demis Hassabis, in 2014, and is completing a roughly £1 billion campus in King's Cross 1

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. The UK announced plans last month to launch a £40 million state-backed research lab for blue-sky work in artificial intelligence, leveraging Britain's research base to make breakthroughs in science, healthcare, and transport 1

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. A government figure noted that dialogue with Anthropic is "building on" a memorandum of understanding signed last year to work together on boosting scientific progress and building a secure supply chain for AI 1

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