Comscore, Inc. Files Registration for Initial Public Offering of Common Stock

RESTON, VA, April 2, 2007 – Comscore, Inc. today announced that it has filed a registration statement on Form S-1 with the U.S. Securities and Exchange Commission relating to the proposed initial public offering of its common stock. The offered shares will be sold by Comscore and certain of its stockholders.

Credit Suisse Securities (USA) LLC will act as sole book-running manager for the offering. In addition, Deutsche Bank Securities Inc., William Blair & Company, L.L.C., Friedman, Billings, Ramsey & Co., Inc., and Jefferies & Company Inc. will act as co-managers for the offering. The number of shares to be offered and the price range for the offering have not yet been determined. Copies of the preliminary prospectus for the offering, when available, may be obtained from Credit Suisse Securities (USA) LLC, Prospectus Department, One Madison Avenue, New York, NY 10010, telephone 800-221-1037.

A registration statement relating to these securities has been filed with the U.S. Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time that the registration statement becomes effective.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

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

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