Sunday, March 17, 2013
An easy place to begin is Business Source Premier's Business Searching Interface where you can search and limit your results to industries or you can browse the industry profiles.
LexisNexis' Company Dossier includes a section on industries and delivers statistical data and charts. (It takes some looking for--click the company tab on the left side of the screen, then select Company Dossier. Here's a direct link to help you out.) You can search by name or SIC code.
Now if you want to identify companies within an industry, use Mergent's industry code search options--SIC, NAICS, or the MIC.