The links below will help you find other relevant codes you may want to identify. You can also find NAICS and SIC codes by looking at the industry information for a company in a database like Mergent Intellect. Some NAICs and SIC codes include the following:
Sporting and Athletic Goods Manufacturing (NAICS: 339920; SIC: 3949)
Sporting Goods Stores (NAICS: 451110; SIC: 5941)
Sports Teams (NAICS: 71211; SIC: 7941); and
All Other Amusement and Recreation Industries (NAICS: 713990 ; SIC: 7999)
One source you can use to apply NAICS codes is the Business Patterns database from the U.S. Census Bureau. This can help you determine what has been the trend in a particular industry from a National, County, Metro, and Zip Code perspective.
You can also use NAICS and SIC codes to find Industry reports from First Research.