Questions to ask before you begin your research:
Private companies do not have to disclose any information to the public. They are difficult if not impossible to research.
Public companies are easiest to research. They are regulated by the government (in the U.S., it's the SEC), sell shares to the general public, and must publicly report company and financial information.
Subsidiary companies will not have their own annual reports, and you may not find information on them in the resources listed on this page. You'll need to determine who the parent company is and research the parent company. Journal articles will be a major source for information on subsidiaries.
This depends upon your need. Best place, if you're unsure--is under the Company Profiles tab. Company profile data provides you with an in-depth overview of the company, the industry, its finances.
"An annual report is a comprehensive report on a company's activities throughout the preceding year. Annual reports are intended to give shareholders and other interested people information about the company's activities and financial performance. " Wikipedia.
Links below will give you access to annual reports.
Journal, magazine, and newspapers articles offer information on companies from an outsider's viewpoint.
Company profiles provide succinct overviews of a company: an overview, history, key facts, top executives, major products and services, competitors, and locations/subsidiaries. Company profiles are an excellent starting point.
Company comparisons show how your company stacks up against its main competitors.
Data on your company's competitors.
Databases below provide financial information--balance sheets, cash flow, and ratios.
A 10-K provides information such as company history, organizational structure, executive compensation, equity, subsidiaries, and audited financial statements.