The ONS appears to disagree: https://www.ons.gov.uk/businessindustryandtrade/business/businessinnovation/datasets/foreigndirectinvestmentinvolvingukcompanies201

The ONS appears to disagree: https://www.ons.gov.uk/businessindustryandtrade/business/businessinnovation/datasets/foreigndirectinvestmentinvolvingukcompanies2013inwardtables https://www.ons.gov.uk/businessindustryandtrade/business/bus... You'll need to download the XLS file but it definitely seems to show substantial declines since 2016 (post Brexit vote). That being said, the numbers are so large that I'm concerned I'm misinterpeting something. My original comment was based on something reported in the FT recently, though I find myself unable to find the article itself.