The U.S. and United Kingdom have signed a sweeping $42 billion “Tech Prosperity Deal,” unveiled during President Donald Trump’s second state visit to Britain.
The pact, billed as a landmark agreement, cements closer cooperation on artificial intelligence (AI), quantum computing, and nuclear energy while unlocking record levels of U.S. investment in the UK.
Leading American technology companies spearheaded the announcement.
Microsoft Corp. has committed $30 billion over four years, half of it directed toward cloud and AI infrastructure. Microsoft CEO Satya Nadella framed the company’s investment as proof of America’s reliability as a tech partner, while NVIDIA CEO Jensen Huang described the UK as uniquely positioned to lead in what he called the “Big Bang of the AI era.”
NVIDIA Corp., which just bought a 4% stake in Intel Corp., said it would roll out 120,000 of its powerful graphics processors across Britain — the company’s largest deployment in Europe.
Alphabet Inc.’s Google, meanwhile, will invest nearly $7 billion in a two-year expansion, including the launch of a new data center in Waltham Cross, Hertfordshire.
Prime Minister Keir Starmer hailed the agreement as a “generational step change” in the UK-U.S. relationship, saying it would drive growth, jobs, and security “in every corner of the United Kingdom.”
Beyond AI, the deal opens new avenues of collaboration in space exploration and nuclear technology. It includes provisions for faster regulatory approvals and new private-sector partnerships to build nuclear plants, further underscoring the scope of the transatlantic partnership.
David Bader, director of the Institute for Data Science at New Jersey Institute of Technology, sees the accord as part of a broader trend of technology partnerships that are now being treated with the same weight as defense or energy alliances.
“It is another powerful signal that advanced technology — particularly AI, semiconductors, and secure digital infrastructure — has become a cornerstone of national strategy, Bader said in an email. “At its core, this agreement is about much more than funding; it’s about aligning two of the world’s leading innovation ecosystems to ensure technological leadership, shared standards, and resilience in the face of global competition.”
“As with NVIDIA’s investment in Intel, these moves show that innovation capacity and technological sovereignty are now viewed as essential to national security and economic competitiveness,” Bader added. “The accord reflects an understanding that no single nation can secure technological dominance alone — alliances are becoming the decisive factor.”
