The agency, which already works with Sony on its Walkman, Bravia and Handycam accounts in Hong Kong, won the business following a pitch against undisclosed agencies.
It will now be responsible for launching a series of campaigns to promote Vaio products in Hong Kong, starting with an integrated campaign to help launch the brand's Vaio X Series.
BBDO Hong Kong was the previous incumbent on the Sony Vaio advertising account. The agency picked up the business in June last year after a pitch against JWT and M&C Saatchi.