Business Source Premier is an EBSCOhost database containing access to thousands of business journals. It also contains company profiles.
Click on Company Information, in the blue bar across the top of the page. On the next screen, type in the name of a public company in the search box. You may also search by ultimate parent, ticker symbol, or keyword, by marking one of those options below the search box. Find the company in the results list and click on it to see a brief snapshot of the company. In tbe left menu are various types of resources with related information, including trade publicatons, academic journals, newspapers, books, reports from various sources, and others.
Hoovers.com is another great resource for finding company information. Use the "Company Information" drop down box in the upper right of their website and then click on "Company Information" again to either browse or search their directory.