Chancellor Rachel Reeves has pledged to halt the flow of British technology companies and scientific talent overseas, warning that the long-standing pattern of firms “drifting abroad” must come to an end as part of a broader push to revitalise UK economic growth.
Speaking ahead of a major address to business leaders in London, Reeves said the government would invest £2.5 billion into artificial intelligence and quantum computing to strengthen the UK’s position as a global technology hub and ensure more homegrown innovation scales domestically rather than relocating to markets such as the United States.
The intervention reflects growing concern within government and industry that the UK is failing to retain its most promising tech businesses. While Britain continues to produce world-class startups and research, many ultimately move overseas in search of deeper capital markets, more favourable tax regimes and stronger institutional backing.
Reeves, speaking from the National Quantum Computing Centre, said her economic strategy was designed to reverse that trend through what she described as a more “strategic and active state”, combining targeted investment with regulatory stability and stronger international partnerships.
At the centre of that strategy is a significant bet on next-generation technologies. Quantum computing, widely regarded as the next frontier of computational power, is expected to underpin advances across sectors from pharmaceuticals to finance, while AI is already reshaping productivity, automation and decision-making across the economy.
Reeves is expected to argue that the UK can achieve the fastest rate of AI adoption in the G7, positioning the country at the forefront of a technological shift that could define global competitiveness over the coming decade. She will also highlight the potential for quantum technologies to generate up to 100,000 jobs, framing the investment as both an economic and industrial strategy.
However, the chancellor’s ambitions come against an increasingly challenging macroeconomic backdrop. The escalation of conflict in the Middle East has already triggered sharp rises in oil and gas prices, raising fears of renewed inflationary pressure and a slowdown in growth, factors that could complicate the government’s efforts to stimulate investment and innovation.
Reeves acknowledged the risks, noting that global energy security had become a central concern as disruption to key supply routes, including the Strait of Hormuz, continues to reverberate through international markets. She confirmed that decisions on major North Sea oil developments, including Rosebank and Jackdaw, would be taken “soon”, though stopped short of committing to accelerated domestic production.
Instead, she pointed to a broader strategy of energy resilience, including closer cooperation with European partners. Plans to deepen integration with EU energy markets are expected to form part of a wider post-Brexit reset aimed at reducing costs and improving supply stability.
That approach extends beyond energy into the regulatory sphere. Reeves is expected to signal a willingness to align the UK more closely with EU rules in selected areas where it supports growth, jobs and investment. While alignment in food and agricultural standards has already been proposed to reduce trade friction, the speech is likely to open the door to similar moves in sectors such as chemicals, manufacturing and advanced industry.
The prospect of closer alignment has already drawn political criticism. Opposition figures argue that the strategy risks diluting the benefits of Brexit, with shadow chancellor Sir Mel Stride accusing the government of attempting to “drag” the UK back towards EU frameworks rather than addressing domestic economic challenges.
Yet for business leaders, particularly in the technology sector, the question is less ideological and more structural. The UK’s ability to retain high-growth companies has long been constrained by gaps in scale-up funding, pension fund participation and the perceived competitiveness of the London Stock Exchange compared with US markets.
Reeves’ intervention appears designed to address those concerns directly, positioning the UK as a place not just to start a business, but to grow and globalise one. By combining public investment, regulatory pragmatism and international cooperation, the government hopes to create an environment in which British innovation can remain anchored at home.
Whether that ambition can be realised will depend not only on policy execution but on the wider economic climate. With geopolitical instability, energy price volatility and shifting global capital flows all in play, the race to retain and scale technology businesses is becoming increasingly competitive.
For now, Reeves is making clear that the UK intends to be an active participant in that race, and that allowing its most valuable companies to slip overseas is no longer an acceptable outcome.
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Reeves vows to stop UK tech ‘drifting abroad’ with £2.5bn AI and quantum push