
The agency beat Hurrell Moseley Dawson & Grimmer and St Luke's to the account, following a three-way pitch.
Miles Calcraft Briginshaw Duffy, the incumbent on the account, did not repitch for the business.
The review was called in early August, shortly after news broke that Cossette Communication Group - which owns MCBD, Elvis, Dare and the digital start-up Switch - had secured the advertising account for Which? Consumer Group's recently launched price comparison site.
Since its appointment to the uSwitch account in April 2006, MCBD has created gospel-themed TV ads for the brand.