American Express has chosen Interpublic Group of Co.'s UM as its new global agency for strategic media planning and buying following a review that began earlier this year.
The brand previously worked with GroupM's Mindshare, as well as with Publicis Media's Digitas for some digital media work. AmEx said it will continue to work with Digitas on creative assignments in the U.S.
AmEx spent $563.8 million on measured media worldwide in 2016, which is a 21 percent increase from the year earlier, according to Ad Age's DataCenter. In the U.S. last year, it spent $204.6 million on measured media, according to Kantar Media.