Equifax Inc. is a consumer credit reporting agency in the United States, considered one of the three largest American credit agencies along with Experian and TransUnion. Founded in 1899, Equifax is the oldest of the three agencies and gathers and maintains information on over 400 million credit holders worldwide. Based in Atlanta, Georgia, Equifax is a global service provider with US $1.5 billion in annual revenue and 7,000+ employees in 14 countries. Equifax is listed on the NYSE.  Wikipedia