NCCS is a repository of data on the nonprofit sector in the US. It is a project of the Center for Nonprofits and Philanthropy of the Urban Institute which is a nonpartisan research institute. Much of the data can be accessed free of charge.
Organization data includes:
To access go to https://nccs-data.urban.org/index.php. The Data Dictionaries (with explanations of variables and fields as well as a Guide about collection of the data and the filing information is also accessible.
For help using this contact Wendi Kaspar at firstname.lastname@example.org.