Instituto Liberdade do Rio Grande do Sul is a Brazilian independent think tank, formed by intellectual entrepreneurs, based in Porto Alegre.Instituto Liberdade is not endowed and does not accept government funding. All of its programs depend upon the generosity of foundations, individuals, and corporations that share belief in the importance of independent research. Instituto Liberdade is among the Top 40 think tanks in Latin America and the Caribbean, from the 2009 Global Go To Think Tanks Index, research conducted by the University of Pennsylvania – Think Tanks and Civil Societies Program.