In his new position, he will attempt to lead the company's international new-business efforts. He will be replaced in his old job by his deputy Pip Hainsworth.
Hainsworth takes control of a strengthened management team, which includes media director Tony Emment, head of analysis Mark Gay and newly promoted managing consultants Richard Brooke and George Patten.
Hainsworth is a former managing director of Mediahead, formerly CDP Media. She joined Media Audits as a managing consultant in August 2003 and was promoted to deputy managing director two months later.
Larkin joined the company in 2001 to replace Martin Sambrook, who had been given the job of running Media Audits' international clients.
"It is the year of accountability and is an exciting and challenging time to be building on the great work Mike and the UK team have done. My aim is to continue to expand our work, while concentrating on our core proposition, which is to provide a consultancy service of utmost integrity for our clients," Hainsworth said.
Julian Spooner, chief executive of Media Audits, added: "Our global business is growing quickly, and most of our clients are now international advertisers that need international advisers with global capability -- like us."
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