Nielsen Holdings is a holding company. Through its subsidiaries, Co. is a measurement and data analytics company. Co. provides clients with an understanding of consumers' media consumption and buying behavior and how those choices intersect. Co. delivers media and marketing information and analytics. Co. also provides manufacturer and retailer data and analytics about what and where consumers purchase. Co. aligns its business into one reporting segment, Nielsen Global Media. This segment provides viewership and listening data and analytics primarily to media publishers and marketers and their advertising agencies for television, radio and digital viewing and listening platforms.