Comscore, Inc.
An audience measurement and analytics firm that tracks how people watch and read media across websites, apps, television, streaming, and cinema, selling that data to advertisers, agencies, publishers, and brands. It was founded in 1999 in Reston, Virginia, by market-research veterans Gian Fulgoni and Magid Abraham, who wanted a reliable way to measure online buying behavior during the dot-com boom. The name is a mash-up of "computer" and "scorecard," and the company is best known as the longtime rival to ratings giant Nielsen.