GuideStar: The National Database of Nonprofit Organizations (Candid) This link opens in a new windowProvides information on the missions, finances, programs, and management of nonprofit organizations, including foundations, public charities, and others. Search by name, keyword, city or state, nonprofit type (public charity, private operating foundation, or private nonoperating foundation), or income range. This database is part of Candid, a nonprofit knowledge bank for the social sector.