Experian plc, formerly known as CCN Systems, is a global credit information group, with operations in 36 countries. The company employs 15,500 people with corporate headquarters in Dublin, Ireland and operational headquarters in Nottingham, England and Costa Mesa, California, U.S. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.

The Company was founded by John Peace in 1980 in Nottingham as CCN systems, an information services business owned by GUS plc.

Source: Wikipedia