TransUnion is one of the four national consumer credit reporting agencies (also known as a credit bureau) that collects and provides consumer financial records to lenders. TransUnion has 2 main products, selling information to potential lenders and marketing credit reports directly to consumers.
TransUnion is the only credit bureau out of three that is a privately held company not traded on the stock market. They are based in Chicago, Illinois with 250 offices in the US and operations in 30 other countries.
Their main competitors are Experian, Equifax, and Dun & Bradstreet.