Roth (pictured) will be based in London and will be responsible for the growth of the firm’s national and international client portfolio, as well as supporting existing clients’ business growth objectives.

Before joining DVJ Insights, Roth was head of research at Further, and has also previously held the role of head of creative development at Ipsos.

Roth also volunteers as editor-in-chief at the Empowerment Foundation.

Jori van de Spijker, global commercial director, said: “I’m proud that in today’s competitive job market we are able to add world-class talent such as Nigel to our team.

“He brings a wealth of knowledge and experience in the area of ad testing, which we do for an increasing number of global and local clients.

“That he has lived and worked in the US is an added benefit for us, as we have seen a large increase in our client base in that region this year.”