Ranking of the 50 biggest givers is based solely on money given out, not pledged, in calendar year 2013. Published by Forbes 10/2/2014.

Government Bodies

Govt Body People
Library of Congress David Koch, David Rubenstein
Governor Greg Abbott's "STRIKE FORCE" to Open Texas Michael Dell, Nancy Kinder
National Gallery of Art David Rubenstein
Office of the Mayor of New York City Michael Bloomberg
U.S. Senate Judiciary Committee’s Subcommittee on Constitutional Amendments David Rubenstein
Carter Administration David Rubenstein
Empire State Relief Fund James H. Simons
City of New York Michael Bloomberg
Trump Economic Advisory Council John A Paulson
Trump Manufacturing Jobs Initiative Michael Dell
Smithsonian Institution David Rubenstein