Sweatman joins from Freud Communications, where he was insight director. He has also worked at Millward Brown and Accenture.

Opinium has typically focused on financial services, consumer goods and professional services clients, but in the last year has begun work for a number of large technology clients.

“Our technology client base has grown tremendously in the past year and we are delighted that James has decided to join us to lead this exciting offering,” said James Endersby, managing director of Opinium Research.

“He’s a fantastic consultative researcher and I’m delighted to have him on board.”