06:47 AM EDT, 09/17/2025 (MT Newswires) -- Nvidia ( NVDA ) and Microsoft ( MSFT ) were some of the major US technology companies that agreed to invest a combined 31 billion British pounds ($42.27 billion) in the UK to help develop its artificial intelligence infrastructure, as part of a tech deal between the two countries.

The tech prosperity deal, which is focused on developing technologies like AI, quantum and nuclear, was announced on Tuesday during President Donald Trump's state visit to the UK. The investment will focus on building new data centers and growing AI start-ups, as well as developing advanced quantum computers, according to a statement by the UK government.

"This Tech Prosperity Deal marks a generational step change in our relationship with the US," UK Prime Minister Keir Starmer said. "By teaming-up with world-class companies from both the UK and US, we're laying the foundations for a future where together we are world leaders in the technology of tomorrow."

Nvidia ( NVDA ), along with its AI infrastructure partners in the UK, will invest up to 11 billion pounds. The tech bellwether agreed to deploy 120,000 advanced graphics processing units all over the country, and help British cloud platform Nscale to scale up its global expansion with 300,000 Nvidia Grace Blackwell GPUs worldwide.

In a separate statement, Microsoft ( MSFT ) said it will invest $30 billion in the UK's AI infrastructure for a four-year period through 2028, with half of this investment allocated to support its own current operations across the country. The investment includes $15 billion in capital expenditures to develop the UK's cloud and AI infrastructure.

Additionally, AI cloud computing firm CoreWeave ( CRWV ) will spend 1.5 billion pounds on AI data center capacity and operations in the UK, bringing its total investment in the country to 2.5 billion pounds over the past year. Salesforce ( CRM ) will spend an additional $2 billion in its UK business through 2030, bringing its overall investment to $6 billion.

BlackRock ( BLK ) is investing 500 million pounds into British enterprise data centers, including an initial investment of more than 100 million pounds for the expansion of a center west of London.

Earlier on Tuesday, Alphabet's (GOOG, GOOGL) Google ( GOOG ) said it will invest 5 billion pounds in the UK over the next two years to support AI developments.