Based in Daytona Beach, International Speedway Corp.
(ticker symbol ISCA) is a motorsports promoter that owns or operates 13 major motorsports facilities around the U.S. including the Daytona International Speedway
. It currently promotes more than 100 racing events annual in addition to other motorsports-related activities.
2011 rank: 96
2010 rank: 95
Full-time employees in 2011: 420
Part-time employees in 2011: 60
Total employees in 2011: 480
Total employees in 2010: 610