The Norwegian government has chosen BAE Systems to build five to six frigates as part of its strategic partnership with Britain, Prime Minister Jonas Gahr Store announced Sunday.
The contract is worth an estimated 100 billion kroner ($10 billion), according to media reports.
BAE beat out competing bids for the frigates from French, German and US groups.
UK Prime Minister Keir Starmer, French President Emmanuel Macron and German Chancellor Friedrich Merz had all travelled to Norway in recent months to push for their respective offers.
"Their capabilities and the closeness of our partnership supported our common belief that the British frigate is the best, as well the very strong integration between the Norwegian and British navies over the years," Store said.
"We've just agreed a �10 b