Crosswise facilitates authoritative cross-device mapping. The resulting data enables ad tech vendors, consumer brands, and premium publishers to realize the tremendous benefits of cross-device advertising, content personalization, and analytics. The companys technology processes over one petabyte of user and device activity data, representing billions of unique devices. By applying advanced data science and proprietary machine-learning techniques to this information, Crosswise constructs a new, probabilistic device map that matches multiple devices to individual users every week.