One of the most recognized resources for researching nonprofit organizations. Create a free profile to access full records and the most comprehensive data available. Includes Form 990s and proprietary ratings.
Another resource for investigating non-profits. Includes Form 990s and their own rating system. Will need to create a free account.
Once you find a competitor's name, search for them on the Web to find their website for even more information about them. Also, see the resources listed under "Company Information" on the main Business Administration research guide for helping find more information on individual public and private companies and nonprofit organizations.