Surdna Foundation Established as a charitable foundation in 1917 by John Emory Andrus
SEIU Largest union in the US, primarily representing workers in health care, property services, and government
Public Citizen non-profit, liberal/progressive consumer rights advocacy group and think tank based in Washington, D.C
Oxfam America United States branch dedicated to finding long-term solutions to poverty, hunger, and social injustice around the world.
NAACP The National Association for the Advancement of Colored People (NAACP) is an African-American civil rights organization in the United States, formed in 1909
League of Conservation Voters American environmental advocacy group