After the U.K. left the European Union in 2020, several Brussels-based partners told Law.com International that the U.K.’s departure would be good business for local competition lawyers; that lawyers based in the EU’s antitrust hub would soon have a leg up over their London-based competitors when vying for client mandates.

Four years later, it appears it’s a bit more complicated than that.

An exclusive investigation by Law.com International reveals that U.K. barristers continue to defend large U.S. companies in front of the EU’s top court four years after Brexit took effect.