Publicly traded organizations can be found in many databases, while information about privately owned organizations can best be found In PrivCo and on organization Websites. When using company websites in your research it can be helpful to seek out pages labeled "corporate" or directed toward investors. These pages are often linked at the very bottom of the main company or brand page and will include annual reports.
Nonprofit organizations will have Annual reports available on their websites and in the United states must file a 900 form.