Burnett spent eight years at Ipsos Mori where he was one of the co-founders of the agency’s Research Methodology Centre. In his new role at Quadrange he will head up the firm’s analytics team with a remit to increase client exposure to the division.

Betteridge joins friom Which? where she was responsible for organising and monitoring real-time feedback from readers, while Olafsdottir was previously at GfK NOP and will be responsible for running quantitative analysis projects at Quadrangle.

Managing director Nick Baker said: “It’s truly flattering that we’re attracting such a high volume of driven, intelligent candidates with such impressive CVs and expertise – it’s a sign of great things to come for the agency.”