The Rockefeller Foundation is a private foundation based at 420 Fifth Avenue, New York City. It was established by the six-generation Rockefeller family. The Foundation was started by Standard Oil owner John D. Rockefeller ("Senior"), along with his son John D. Rockefeller Jr. ("Junior"), and Senior's principal oil and gas business and philanthropic advisor, Frederick Taylor Gates, in New York State on May 14, 1913, when its charter was formally accepted by the New York State Legislature.
As of 2015, the Foundation was ranked as the 39th largest U.S. foundation by total giving. By year-end 2016 assets were tallied at $4.1 billion (unchanged from 2015), with annual grants of $173 million