Numeric industry coding systems identify an industry and allow for standardized searching of industries and classified establishments within them. Some databases allow you to search by industry codes to retrieve lists of companies or broad industry reports.
Use these websites to find upcoming trade shows and exhibitions in your industry, or business networking events:
A partial list of resources selected and described by librarians at the USC Crocker Business Library.
WANT HELP? Ask a librarian 
Keep in mind that the college library and our partner libraries have lots of research tools. Use library tools in conjunction with these free websites when conducting research, and ask a librarian for help if you don't easily find what you need.