New data shows London has reclaimed its position as Europe’s top technology hub, overtaking Paris following a sharp increase in artificial intelligence investment.
Figures from Dealroom place London fourth globally in its latest Global Tech Ecosystem Index, behind Silicon Valley, New York and Boston, after startups in the capital raised £17.7bn last year.
AI investment in London almost doubled to $7bn, up from $3.9bn the prior year, driven by companies including Anthropic and OpenAI significantly expanding their UK presence.
The result reverses the position from a year earlier, when Paris briefly overtook London amid concerns Britain was losing ground in AI and fintech sectors.
Since then, London has benefited from a sustained wave of investment into frontier AI and deep technologies from International backers.
Anthropic recently announced plans for a major new London office near King’s Cross with capacity for 800 staff, while OpenAI is also preparing a permanent UK base.
Google DeepMind, Meta, Wayve, Synthesia, and Isomorphic Labs are all clustered around the capital’s growing knowledge quarter in King’s Cross, which is increasingly described as London’s answer to Silicon Valley.
Dealroom said the city’s recovery was driven by “stronger venture capital investment, continued unicorn creation and depth across sectors.”
London is now home to 138 unicorns, including Wayve, Elevenlabs and fintech giants Revolut and Monzo, underlining the breadth of the capital’s startup ecosystem.
Cambridge ranked third globally for innovation density, behind only the Bay Area and Boston, while Oxford continued to perform strongly in deep tech and life sciences.
Europe now has 45 ecosystems in the global top 100 for innovation density, placing the continent ahead of North America’s 40.
“London reclaiming the top spot in Europe reflects the maturity and resilience of the UK’s tech ecosystem,” said Dealroom founder Yoram Wijngaarde.
“The city continues to attract global investment while producing internationally significant companies across AI, fintech and life sciences,” Wijngaarde added.
Anthropic is currently advertising engineering roles in London paying up to £630,000 before stock options, while OpenAI has also expanded hiring across AI and infrastructure teams.
The influx of major US AI firms has reignited concerns over whether Europe can retain its strongest homegrown companies as American giants pour billions into infrastructure and compute.
The UK government has actively courted major AI labs as part of its wider growth strategy, while regulators including the CMA have increasingly framed competition policy as a tool to help British startups scale.