Data collected from more than 10,000 companies which use the recruitment agency Hired found that requests to interview foreign candidates fell by 46% year-on-year and 37% in the second quarter, London's Financial Times reported.
US President Donald Trump recently announced that legal immigration to the US would be cut by half, with criteria like English-speaking ability being used to vet potential migrants.
The US has made changes in the H-1B visa rules after Trump's inauguration, resulting in a fall in the number of applications for these visas this year. The US Citizenship and Immigration Services received 199,000 applications for H-1B visas for the next fiscal year, compared to 236,000 received in 2016.
The FT report said that foreigners were not inclined to apply to US technology companies. There was a 4% fall in the rate of acceptance of interview requests from the third quarter to the fourth quarter last year when Trump won the election.
The chief executive of Hired, Mehu Patel, told the newspaper that prospective employers were in a state of "limbo".
A similar effect had been seen when the UK voted to leave the EU last year. At that time, there was a fall of about 30% in the number of technology companies in the UK making job offers to foreign candidates.
Patel said that big technology companies, which were doing well financially, and start-ups that had received increased venture capital were all hiring. However, there was a shortfall of candidates.
Hired found of more than 300 tech industry workers surveyed in the UK, about 40% had thought of relocating to another country after the US election, with a third preferring Canada, followed by Germany, Asian countries and Australia.
Forty-three percent of those who were surveyed said the UK had become a less desirable place to live in after Brexit.