Experian plc is a consumer credit reporting agency. Experian collects and aggregates information on over one billion people and businesses including 235 million individual US consumers and more than 25 million US businesses.[5][6] Based in DublinIreland, the company operates in 37 countries with headquarters in the United Kingdom, the United States, and Brazil. The company employs approximately 17,000 people and reported revenue for 2016 of US $4.6 billion[7]. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index. Experian is a partner in the UK government's Verify ID system and USPS Address Validation. It is one of the “Big Three” credit-reporting agencies, alongside TransUnion and Equifax.[8]

In addition to its credit services, Experian also sells decision analytic and marketing assistance to businesses. Its consumer services include online access to credit history and products meant to protect from fraud and identity theft.[9] Like all credit reporting agencies, the company is required by US law to provide consumers with one free credit report every year.[10]