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A great way to start off when researching a company or their competitors is to try and find their annual report or investment relations web page.
In the above box simply type in "a companies/ organizations name" AND "annual report".
If it is a public company you can also type in "investor relations" instead of "annual report".
If it is a non-profit you can also access their annual financial statement by substituting "990 form" instead of "annual report".
This guide highlights sources to consult when preparing a business plan.
A great place to start when you know little about the company is their website. This page includes instructions on how to access Annual Reports, and when applicable Investor relations websites to the companies you will be working with.