The review, being handled by Agency Insight, involves the Whiskas and Sheba cat food brands and the Pedigree and Cesar dog food marques.
The brief is to develop a UK customer relationship marketing programme.
The agency Proximity London, owned by Omnicom, handles Whiskas and Sheba, while the Pedigree and Cesar brands are handled by Joshua. Both incumbents work on other Masterfoods ranges. Joshua handles Frolic and Mars. Proximity has worked on Bounty and Maltesers.
The review is the latest of several shake-ups of Masterfoods' agency relationships. At the beginning of the year, it moved its £55 million Pedigree account out of Grey into TBWA\Worldwide before removing Grey from its roster in the autumn. TBWA\London won the accounts for Twix, Galaxy and Starburst. BBDO picked up the Mars, Milkyway and Delight brands.