Identifying organizations is a great way to find interview contacts.
Candid's GuideStar provides data on IRS-recognized nonprofit organizations in the U.S. Users can search nonprofits according to their operating budgets, size, location, and National Taxonomy of Exempt Entities (NTEE). Highlight include a financial trends analysis snapshot for each organization and downloadable form 990s.
To access the premium section of Guidestar, you must register and create an account. Once registered, NYU users are permitted to download 1000 records per month. Registration can be done on this link here.
Foundation Directory Online is a database of over 100,000 public and private foundations, corporate giving programs, and grantmaking public charities in the U.S. It provides comprehensive information on grant-makers and their grants. Includes Candid's "Foundation Grants to Individuals Online".