DealerTrack Holdings, Inc. is a holding company. The Company is a provider of on-demand software and data solutions for the automotive retail industry in the United States. Using the Internet, the Company has built a network connecting automotive dealers with banks, finance companies, credit unions and other financing sources, and other service and information providers, such as aftermarket providers and credit reporting agencies. During the year ended December 31, 2008, it has established a network of relationships in the United States consisted of over 19,000 dealers, over 730 financing sources and many other service and information providers to the automotive retail industry. Its subsidiaries include Automotive Lease Guide (alg), Inc., Chrome Systems, Inc., DealerTrack AAX, Inc., DealerTrack Aftermarket Services, Inc., DealerTrack Canada, Inc., DealerTrack Digital Services, Inc., DealerTrack, Inc., and DealerTrack Systems, Inc.