
The WPP agency triumphed after a five-way pitch against the two incumbent agencies, ZenithOptimedia, MPG and independent agency the7stars.
The media planning and buying account covers Admiral Insurance, Diamond Insurance and the two online brands elephant.co.uk and confused.com.
Admiral, the trading name of financial and insurance company EUI Limited, last reviewed its media in 2002, when it consolidated its business into the current incumbents.
The company launched in 1993 with the aim of targeting drivers in higher risk categories, for example young drivers, performance car drivers and urban drivers.
It began offering online car insurance quotes in 2000.