DIRECT MAIL ADVERTISING SERVICES (SIC 7331)

Establishments primarily engaged in furnishing direct mail
advertising services, such as creating, producing, and mailing
direct mail advertising.  This industry also includes
establishments primarily engaged in compiling and selling mailing
lists.  Establishments primarily engaged in reproducing direct
mail copy to order but also providing other direct mail
advertising services are classified in Manufacturing if they
print the copy, and in Industry 7334 if they duplicate the copy
by photocopying or similar reproduction methods.