The win follows a competitive pitch process that involved Naked, BellamyHayden and Carat, the eight-year incumbent. Initiative pulled out of the pitch process at an earlier stage.
The agency said that this win marks the second major piece of business to move from Carat to MediaCom in the past three weeks. Earlier this month, the agency acquired the US$40 million Yum Brands account, which includes the Pizza Hut and KFC brands.
The NRMA deal sees MediaCom take over media planning and buying duties for NRMA Insurance in New South Wales, the Australian Capital Territory and Queensland. They will also manage the media business for SGIC in South Australia and SGIO in Western Australia.
A creative agency partnership has yet to be announced.
John Lewis, senior manager of advertising and promotion for NRMA Insurance, SGIO and SGIC, said, "We are pleased to appoint MediaCom as our new media partner following an extensive review process."
He added that, "Carat has done an outstanding job for us and delivered leading results. We have had a great relationship and thank them for their excellent service over the eight years we've worked together."