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comScore, Inc. Prices Initial Public Offering

RESTON, VA, June 26, 2007 - comScore, Inc. (NASDAQ: SCOR) today announced the pricing of its initial public offering of 5,300,000 shares of its common stock, 5,000,000 shares of which are being offered by comScore and 300,000 of which are being offered by certain selling stockholders, at a price to the public of $16.50 per share. Shares of comScore’s common stock will trade on the NASDAQ Global Market under the symbol “SCOR”.  Total net proceeds to comScore will be approximately $73.7 million, after deducting underwriting discounts and commissions and estimated offering expenses.  comScore will not receive any proceeds from the sale of shares from the selling stockholders.

The underwriters have been granted a 30-day option to purchase up to an additional 795,000 shares of common stock from certain selling stockholders, at the initial public offering price to cover over-allotments, if any.

Credit Suisse Securities (USA) LLC served as the sole book-running manager for the offering, with Deutsche Bank Securities Inc., Friedman, Billings, Ramsey & Co., Inc., Jefferies & Company Inc. and William Blair & Company, L.L.C. acting as co-managers.