To identify companies operating within an industry, search company directories available online or in print through the library or free on the Internet (for example, membership lists on industry association websites).
Directories typically contain contact information, such as the address, telephone number, and key executives or personnel. Some directories may offer minimal financial and profile information, as well.
Most directories can be searched by industry and some are organized by industry codes - information on industry codes and links to standard classification systems are below.