Nielsen Media Research

Link: http://www.nielsenmedia.com/nc/portal/site/Public/

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Nielsen Media Research is the leading provider of television audience measurement and advertising information services worldwide. We are headquartered in New York, with offices throughout the United States. Nielsen Media Research International has offices around the world and provides measurement data in more than 40 countries. Nielsen Media Research Canada's offices are located in Markham, just outside Toronto.

The company is owned by The Nielsen Company, a privately-held international company based in Haarlem, The Netherlands and New York.

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