561920  Convention and Trade Show Organizers 

This industry comprises establishments primarily engaged in 
organizing, promoting, and/or managing events, such as business 
and trade shows, conventions, conferences, and meetings (whether 
or not they manage and provide the staff to operate the facilities 
in which these events take place).

The data published with NAICS code 561920 are comprised of this part
of the following SIC industry:

     7389 (pt)  Convention and Trade Show Organizers