Headquartered in the U.K.,[1] Nielsen is a leading[8] global, independent measurement and data company for fast-moving consumer goods, consumer behavior, and media. With a presence in more than 100 countries and services covering more than 90% of the globe's GDP and population, Nielsen provides clients with a comprehensive understanding of what consumers watch (programming, advertising) and what they buy (categories, brands, products) on a global and local basis and how those choices intersect.[9]
