THE UK remains the largest single overseas investor in the US by a wide margin, but other major players have been increasing their foreign direct investment in the world’s largest economy at a faster rate.

These are the findings of the Confederation of British Industry and Eli Lilly’s Sterling Assets report, published today.

The survey shows the UK had $569 billion invested in the US at the end of 2015 –up $43bn on a year earlier – according to the latest available figures from US Department of Commerce sources at the time the report was prepared.

The CBI noted the $569bn figure was “a weighty 18 per cent of the $3.1 trillion of foreign direct investment into the USA”.

It added that the UK’s total FDI in the US was $155bn more than the corresponding figure for Japan, the next-largest investor. The CBI noted the figure for the UK was also in excess of $225bn more than Canada’s foreign direct investment in the US.

The business organisation noted the UK figure “also eclipsed investments [in the US] from the fast-growing economies of China and India, which amounted to less than 1% of FDI”.

However, the CBI added: “Despite this strong showing, [the UK’s] FDI into the USA grew at the slowest rate of the top-five investing countries from 2010 to 2015.”

Highlighting a need to reverse this situation, the CBI said it wanted to see “a commitment to ensure continuity in UK-USA trade and investment ties when the UK leaves the EU”. It also called for “actions to deepen trade and investment which don’t require a free trade agreement - such as mutual recognition of each country’s professional qualifications and greater regulatory cooperation in areas like aviation and financial services”.

And the CBI urged “working together to make the case for free trade at the World Trade Organisation, calling for greater liberalisation in trade in services”.

CBI international director Ben Digby said: “It is a source of great pride and credit to the UK and the USA that our two nations have the largest bilateral trade and investment relationship in the world today.

“Trade is not all about free trade agreements – there is so much we can do now to improve it. The first priority is protecting what we’ve already got.”