GuideStar connects people and organizations with information on the programs and finances of more than 1.8 million IRS-recognized nonprofits. GuideStar serves a wide audience inside and outside the nonprofit sector, including individual donors, nonprofit leaders, grantmakers, government officials, academic researchers, and the media.

GuideStar hosts an initiative called TakeAction@GuideStar, a resource to help individuals identify the most effective nonprofits working in specific causes areas. Our expert partners (like Root Cause) have analyzed the issues related to a number of causes and identified nonprofits that are making an impact in these areas.