Note: Some of the database interfaces have changed since this video was recorded. I am working to update videos, but in the meantime I would advise that all of the same data should be available and if you're having trouble navigating, please don't hesitate to email me. I am always happy to help.
Note: Determining a company's ownership is the first step to conducting research. If a company is public, more information will be available as the company is required to report its finances, while a private company does not have to report any financial information. It is also helpful to know a company's place in a hierarchy (parent company, subsidiary, etc.). A number of databases will include this information in a company profile page.