GuideStar, produced by Philanthropic Research, Inc. (PRI), is a searchable directory that provides detailed information on more than 850,000 nonprofit organizations. The database covers 'IRS-registered 501 nonprofit organizations that may accept tax-deductible contributions'. Profiles cover mission and programs, financials, leaders, and most importantly, full text via PDF of the charity's IRS 990 filing from 1998 forward in most cases. Form 990 provides information on revenues, expenses, programs, activities, executive salaries and board members. Be aware that information not drawn from the 990 is self-reported by the organization to PRI. Search by name, keyword, city or state, nonprofit type (public charity, private operating foundation, or private nonoperating foundation), or income range.
Parts of the database are only available to licensed institutions, such as GuideStar analysts report, but the site contains significant free content. Access to some free content requires registration