Peter Warren, the non-executive chairman of the Radio Advertising Bureau, is stepping down after five years.
John Hooper, previously the director-general of ISBA, will replace him.
His role will be to forge closer links between the RAB and major advertisers following Warren's work at focusing on creative and media agencies.
Hooper began his career as a marketer at Procter & Gamble before joining the management and marketing consultancy Glendinning. He then launched the sales promotion agency Clarke Hooper. He was a past chairman and member of the Committee of Advertising Practice.
Warren steps down at the end of March. He said: 'I am proud to have chaired the RAB over five very successful years when radio built its share of revenue from 4 per cent to 6 per cent. John is a good friend and an outstanding professional. I know he will bring much to the RAB.'
In addition to speaking to advertisers about the RAB, Hooper will also work with the chief executives of major radio groups to keep them united behind the RAB.
Douglas McArthur, the RAB's chief executive, said: 'The RAB's success in gaining trusted relationships with creative and media agencies could not have been achieved without Peter Warren's help.'