This is its third office on the east coast, with its head office in White Plains, NY and another office in Manhattan. The company said it could now better service the high demand for research services across the north east.

It expanded into Chicago three months ago.

Julia Doheny, president of the North American business, said: "We are delighted to have expanded our footprint into Boston. It made sense to be on the ground in this centre of excellence that ranks so highly as an innovation hub, as we continue to support major B2B brands in becoming best in class."

B2B International was acquired by the Dentsu Aegis Network in October 2018, joining forces with gyro.