If you have established that a company is public, you will be able to find many sources that provide financial summaries, investment analyst reports (such as those provided via Thomson Research), as well as their 10-Ks or 20-Fs. The sources in this section will help you find this type of information.
10-Ks are the annual reports that U.S. public companies must submit to the Securities Exchange Commission (SEC). 20-Fs are the annual reports that foreign companies trading in the U.S. file to the SEC. Another good source for the 10-Ks or other annual reports is the company's website. These reports are usually located in the "Investor Relations" section of the website.