comScore

One of the two dominant global audience measurement and analytics providers, competing primarily with Nielsen for industry currency status across digital and cross-platform media

comScore is a global information and analytics company headquartered in Reston, Virginia, specializing in measuring audiences, brands, and consumer behavior across media platforms. Founded in 1999 and publicly traded, comScore serves as a trusted currency for planning, transacting, and evaluating media across television, digital, and streaming platforms. Its data and analytics solutions are used by publishers, advertisers, agencies, and media buyers to understand and quantify audience reach and engagement. In the AdTech ecosystem, comScore occupies a critical role as a third-party measurement and verification provider. Its suite of products spans digital audience measurement, cross-platform measurement, advertising effectiveness, and brand safety solutions. comScore's Total Audience Measurement framework enables clients to understand unduplicated reach across TV, desktop, mobile, and over-the-top (OTT) platforms, making it particularly valuable in an era of fragmented media consumption. The company competes directly with Nielsen and other measurement firms for the role of industry currency in audience ratings. comScore has faced significant challenges over the years, including accounting irregularities and executive leadership changes in the mid-2010s, but has continued to operate as an independent public company. It has invested heavily in cross-platform measurement capabilities and partnerships with major broadcasters, streaming services, and digital publishers. Its Validated Campaign Essentials (vCE) and other verification tools address growing advertiser demand for transparency and accountability in digital advertising spend.

• 1999Founded