Try searching for alternate terms, such as charities, foundations or charitable organizations.
These sources have information on individual charities and non-profit organizations.
The Rustandy Center for Social Sector Innovation at the Booth School of Business provides access to datasets compiled from IRS Filings, covering 2003 - 2019. Contact Alissa Bolz, Associate Director of Research Partnerships and Strategy at the Rustandy Center to get access
Alissa.Bolz@chicagobooth.edu
More information on what's included is in this PDF
These sources have summary statistics on charities and charitable giving.
These are print directories. Links go to library locations.