TransUnion is an American consumer credit reporting agency. One of the “Big Three” (along with Experian and Equifax), TransUnion collects and aggregates information on over one billion individual consumers in over thirty countries including "200 million files profiling nearly every credit-active consumer in the United States".  Its customers include over 65,000 businesses. 

TransUnion also markets credit reports and other credit and fraud-protection products directly to consumers. Additionally a growing segment of TransUnion's business is its business offerings that use advanced big data, particularly its deep AI-TLOxp product. 

‍Headquarters: Chicago, Illinois, USA

‍Number of Employees: 18,000