GuideStar is a non-profit organization that gathers and disseminates information about every single IRS-registered nonprofit organization. They provide as much information as possible about each nonprofit's mission, legitimacy, impact, reputation, finances, programs, transparency, governance, and  much more. GuideStar is not an evaluator but a public charity that collects, organizes, and presents the information you want in an easy to understand format while remaining neutral. This is so you can take the information and make the best decisions possible.