Callcredit Information Group has been put up for sale by Virtuvian Partners, the buyout firm which has owned the credit reference agency since 2009.
German media firm Bertelsmann, and Charterhouse, Permira and GTCR are believed to be among the bidders, with investment bank Jeffries looking after the sale.
Callcredit, previously owned by Skipton Building Society, currently employs approximately 800 people in the UK.
According to a February 2012 Motor Finance survey of underwriting staff at independent lenders, a quarter were using Callcredit.
In May 2012, subprime lenders The Car Finance Company and Moneybarn also spoke of the worth of Callcredit as an alternative to Experian and Equifax.
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