Procter & Gamble Partners with Comscore for Digital Campaign Ratings

Strategic Partnership Leverages Comscore validated Campaign Essentials (vCE) for Measurement of P&G’s Digital Display and Video Campaigns

RESTON, VA, April 25, 2013 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today announced that Procter & Gamble has agreed to partner with Comscore on its validated Campaign Essentials (vCE) capability. vCE is a holistic ad delivery validation solution that provides deep campaign insights, in-flight reporting, and daily alerting for convenient and effective campaign management.

“We are extremely pleased with the confidence that P&G has placed in our capabilities,” said Serge Matta, Comscore President of Commercial Solutions. “We look forward to working together to support their ongoing efforts to validate digital campaigns and further enable their efficiency and effectiveness in real-time.”

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in digital measurement and analytics, delivering insights on web, mobile and TV consumer behavior that enable clients to maximize the value of their digital investments. For more information, please visit www.comscore.com/companyinfo.

Cautionary Note Regarding Forward-Looking Statements
This release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, but not limited to, expectations regarding the impact and benefits to Comscore from the Procter & Gamble agreement, financial or otherwise. These statements involve risks and uncertainties that could cause our actual results to differ materially, including, but not limited to: the features and characteristics of the products, the rate of development of the digital marketing intelligence, Internet advertising and e-Commerce markets; the growth of the Internet as a medium for commerce, content, advertising and communications; and the acceptance of new products and methodologies by the industry, including existing and prospective clients.

For a detailed discussion of these and other risk factors, please refer to Comscore's most recent respective Quarterly Reports on Form 10-Q, Annual Reports on Form 10-K and from time to time other filings with the Securities and Exchange Commission (the "SEC"), which are available on the SEC's Web site ( http://www.sec.gov).

Stockholders of Comscore are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date such statements are made. Comscore does not undertake any obligation to publicly update any forward-looking statements to reflect events, circumstances or new information after the date of this press release, or to reflect the occurrence of unanticipated events.

Press
Bill Daddi
Daddi Brand Communications
646-370-1341
press@comscore.com