comScore Acquires Products Division of Nexius, Inc.

Expands Offerings for Mobile Operators Leveraging comScore's Expertise in Managing Complex Data

RESTON, Virginia, July 1, 2010 - comScore, Inc. (Nasdaq: SCOR), a leader in measuring the digital world,
today announced that it has acquired the products division of Nexius, Inc., a
leading provider of mobile carrier-grade solutions that deliver network
analysis focused on the experience of wireless subscribers, as well as
network intelligence with respect to performance, capacity and configuration
analytics. Nexius' Xplore family of products enables network operators to
enhance operational efficiencies and prioritize capital expenditures based on
customer demand in a constantly changing environment. This acquisition
further strengthens comScore's position in the mobile marketplace through
expanded product offerings targeted at mobile operators. These products
provide analytics that operators can use internally to build smarter networks
and improve customer care, or - at the operators' sole discretion and in a
manner that respects customer privacy - could feed into separate comScore
tools for use by media partners to enable mobile as a medium.

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"Our acquisition of the products division of Nexius expands the value we
are able to bring operators through the actionable intelligence required to
optimize customer experience," said Dr. Magid Abraham, comScore President &
CEO. "The explosive growth of mobile data services is driving growth and
profitability in the sector but has also dramatically increased the amount
and complexity of customer data that operators must manage in this highly
competitive global marketplace. With this acquisition, comScore now offers a
more comprehensive set of capabilities that operators can leverage to drive
value for their partners and customers."

"We are excited to join the comScore team to build uniquely powerful and
comprehensive global mobile intelligence offerings," said Nabil Taleb, CEO of
Nexius. "comScore and Nexius have similar DNA as technology leaders and
innovators. By combining our talents and technological capabilities, we'll
provide an even broader set of solutions to help our mutual clients measure
the changing dynamics of the wireless ecosystem."

The acquisition will be integrated into comScore's existing Telecom and
Wireless Practice. Mr. Taleb will join the comScore senior management team
and will be named EVP of comScore Wireless Solutions.

comScore anticipates that the transaction will fuel incremental growth
for comScore in 2010 and anticipates that the acquisition will add
approximately $4 million to the company's 2010 revenue, with similar
profitability margins to the balance of comScore's business. Additionally,
comScore anticipates that the transaction will be accretive to 2010 GAAP and
non-GAAP net income.

Nexius' consulting division has been spun off into a separate entity
called Nexius Solutions Inc., led by co-Founder Nadim (Ned) Taleb
(www.nexius.com).

Mobile Industry Leaders Voice Enthusiasm for Nexius

"The network intelligence provided by Nexius has been a critical
component of fulfilling our customer value proposition," said Bob Johnson,
Chief Strategy Officer at Sprint. "Nexius analytics have enabled us to
improve our network optimization and better serve our customers."

"Nexius has been a valuable partner in helping us understand the dynamics
of our network," said Hassan Kabbani, CEO of Mobinil, a leading mobile
operator in Egypt and a joint venture between Orange and Orascom Telecom.
"Nexius is an innovative and reliable company in the network analytics space
and well positioned to grow in global markets."

comScore to Discuss Acquisition in Conference Call

comScore management will discuss today's announcement in a conference
call today, Thursday, July 1, 2010, at 5:30 PM ET. The conference call and
replay can be accessed by telephone and webcast as follows:

    Call-in Number: 800-591-6944, Passcode 66935716
    (International) +1-617-614-4910, Passcode 66935716

    Replay Number: 888-286-8010, Passcode 16125719
    (International) +1-617-801-6888, Passcode 16125719

    Webcast (live and replay): ir.comscore.com/events.cfm

About comScore

comScore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital
world and preferred source of digital marketing intelligence. comScore helps
its clients better understand, leverage and profit from the rapidly evolving
digital marketing landscape by providing solutions in the measurement and
evaluation of online audiences, advertising effectiveness, social media,
search, video, mobile, e-commerce , and a broad variety of other emerging
forms of digital behavior. comScore's capabilities are based on a global
panel of approximately 2 million Internet users who have given comScore
explicit permission to confidentially capture their browsing and purchase
behavior. These data can also be combined with census-level Web site or
telecom carrier data to provide the most comprehensive and unified
measurement of digital activity. comScore's recent acquisition of ARSgroup
adds one of the industry's most validated measurement of the persuasive power
of advertising in TV and multi-media campaigns. comScore services are used by
more than 1,300 clients around the world, including global leaders such as
AOL, Baidu, BBC, Best Buy, Carat, Deutsche Bank, ESPN, Facebook, France
Telecom, Financial Times, Fox, Microsoft, MediaCorp, Nestle, Starcom, Terra
Networks, Universal McCann, Verizon Services Group, ViaMichelin and Yahoo!.
For more information, please visit www.comScore.com.

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, comScore's expectations
regarding the impact and benefits of the acquisition of Nexius, financial or
otherwise; comScore's expectations regarding the growth, opportunities and
favorability of the market for mobile enterprise and marketing products; and
comScore's expectations as to the integration of Nexius' products and
customer base with its existing products. These statements involve risks and
uncertainties that could cause actual results to differ materially,
including, but not limited to: the impact of integrating Nexius' business and
products into comScore's business and products; the possibility that the
mobile enterprise and marketing products markets do not grow and develop as
expected; comScore's ability to retain customers and employees of Nexius; the
risk of integration difficulties from the Nexius; comScore's ability to grow
its existing customer base and develop new products; the expected strength of
comScore's business and client demand for comScore's products; the future
quality of client relationships and resulting renewal rates; expectations of
customer growth; and expectations of sales growth.

For a detailed discussion of these and other risk factors, please refer
to comScore's Quarterly Report on Form 10-Q for the period ended March 31,
2010, Annual Report on Form 10-K for the period ended December 31, 2009 and
from time to time other filings with the Securities and Exchange Commission
(the "SEC"), which are available on the SEC's Web site (www.sec.gov).

Stockholders of comScore are cautioned not to place undue reliance on our
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.

U.S., Andrew Lipsman, +1-312-775-6510, press at comscore.com, or International, Cathy McCarthy, +44 (203) 111-1746, worldpress at comscore.com, both of comScore, Inc.