comScores

comScore, Inc. is an American market research and analytics company that provides measurement and analysis of digital audiences and advertising across multiple platforms. The company focuses on cross-platform measurement, quantifying audiences and engagement for websites, mobile apps, video content, and traditional media such as television, to support planning, buying, and evaluating media campaigns. Headquartered in Reston, Virginia, comScore serves advertisers, agencies, publishers, and media companies worldwide.

comScore's offerings combine digital audience metrics, advertising intelligence, and campaign measurement. Core capabilities include audience reach and frequency, demographics, and engagement across online and off-line media, with tools designed for media planning, media trading, and attribution. The company emphasizes data integration from multiple sources, including online panels and census-level data, along with privacy-protecting methods.

History: Founded in 1999, comScore expanded through acquisitions to broaden its measurement scope. In 2016, the company acquired Rentrak, extending its measurement capabilities into television and other video platforms and creating a cross-platform measurement business. Since then, comScore has continued to develop its product suite to address advertising effectiveness, brand lift, and multi-screen audience insights.

Market position: comScore operates in the competitive field of media measurement, alongside other firms such as Nielsen. It serves clients across advertising agencies, brands, publishers, and broadcasters and has partnerships with major digital platforms. The company emphasizes privacy and compliance in its data collection and reporting.