For your organizational change portfolio you will be looking for basic company information: company name, organization, vision, mission, goals, values of the organization, customer base, current events, and corporate responsibility. This guide lists useful sources, but there isn't one resource that will give you all the information you need.
Remember: Don't hesitate to ask for help if you need it!
Where are annual reports located?
What else is on the company's Web site?
Public Companies vs. Private Companies
Can you trust information from the company?