Brown has spent nearly 25 years at the various divisons of what is now Kantar Media and replaces Jean-Michel Portier, who retired earlier this year.

Reporting to Kantar CEO Eric Salama, Brown takes overall charge of Kantar Media’s portfolio of media and advertising measurement & analysis services. The senior management of Kantar Media’s four divisions – Audiences, Ad Intelligence Media Intelligence and TGI – will report to Brown.

Salama said: “Kantar Media plays a central role in our ability to help clients understand the media landscape and how people consume media and how that consumption drives purchase. I’m delighted that Andy is taking on this role. He has been a valued colleague for many years and knows where we need to evolve and where we need to revolutionise.”