The National Taxonomy of Exempt Entities (NTEE) system is used by the IRS and NCCS to classify nonprofit organizations.
Codes for the Arts
Cause Area - Arts, Culture, and Humanities
Subcause examples - Art museums, Performing Arts Centers
The North American Industry Classification System (NAICS) is used to classify business establishments by the U.S. government. Find the NAICS codes through this lookup tool. You will also find a company's NAICS codes on any company profile page in databases like Mergent Intellect.
Here are some commonly used NAICS codes for arts organizations: