Former sports brands chief Bill Sweeney has been named as the British Olympic Association's new chief executive officer, replacing Andy Hunt who stepped down in February.
Sweeney, 55, will be responsible for overseeing preparations for the Sochi 2014 and Rio 2016 Olympic Games and the inaugural European Games in 2015.
"I look forward to building on the momentum created by the Team GB display at London 2012," he said.
Team GB won 65 medals at the Games.
BOA chairman Lord Coe added: "Bill's business and sport experience, and his impressive record in developing global sports brands, makes him the right choice for this role.
"He knows how to build brands, reach consumers and generate the revenues that are necessary to support our operations."
Sweeney has previously held managerial positions at Adidas, the Team GB kit suppliers, Puma and Reebok.