Data management platforms (DMPs) facilitate smarter media buying by unifying data from multiple sources to allow more accurate and detailed audience segmentation. We expect the US DMP market to grow at a 43% compound annual growth rate (CAGR) from 2015 to 2021. This forecast focuses on DMPs that support the programmatic advertising ecosystem; platform vendors include Adobe, IgnitionOne, Google, Krux, Lotame, Neustar, Oracle, and Wunderman (KBM Group). The forecast breaks out US DMP growth by deployment model, enterprise/SMB, and 10 industry segments (consumer products; financial services; healthcare; high-tech products; insurance; media, entertainment, and leisure; pharma and medical equipment; retail; telecommunications; transportation; and other).