The International Speedway Corporation (ISC) owns 13 major motorsports facilities and subsidiaries including NASCAR, radio network MRN, and attraction DAYTONA USA. ISC's revenue comes primarily from NASCAR events. NASCAR sanctions over 1,300 races annually across North America and has over 85 million fans, particularly among younger demographics. While ISC saw revenue declines in 2008 due to economic conditions, the company expects growth to resume.