cited people familiar with the matter. TransUnion and Neustar did not immediately respond to a request for comment outside regular business hours.
Virginia, US-based Neustar is a provider of real-time information and analysis that helps businesses identify potential customers and determines which ads to serve them.
An investment group led by private equity firm Golden Gate Capital took Neustar private in 2017 in a deal valued at $2.9 billion, including debt.
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