Several library and Internet resources provide financial information about companies. Keep in mind that financial information about private companies is limited, as private companies do not have to disclose information to the SEC or the public.
Business Market Research Collection profiles contain brief information about public companies' income statement, balance sheet, liabilities and equity, and cash flow statement.
Datamonitor Reports (MarketLine)
Datamonitor reports on public companies can include basic information about a company's revenues, profits, and losses.
The SEC's EDGAR database provides access to filings made by public companies.
You can search EDGAR by company name or ticker symbol, then see filings from that company. 10-K forms include financial statements and an overview of the company's business and financial condition.
Some public company websites may include financial information. Look for a link labeled Investors or Investor Relations.