Renate Rennie joined the Tinker Foundation in 1972, becoming its President in 1996 and its Chairman in 2008. She was instrumental in developing and advancing the Foundation's work on environmental issues in Latin America and Iberia as well working to include Antarctica within its geographical focus. Her interests also encompass policy issues of economic modernization, private sector involvement in Latin American environmental activities, and the reform of the Latin American judicial sector. Ms. Rennie also serves on the board of directors of the Americas Society and the Spanish Institute. She is a member of the Council on Foreign Relations as well as numerous organizations connected with environmental, Latin American, Iberian and philanthropic endeavors.

She serves on the Advisory Committees of the Inter-American Foundation and the Woodrow Wilson International Center for Scholars. Past appointments have included membership on the Botanical Science Committee of the New York Botanical Garden, the Kleinhans Fellowship Selection Committee of the Rainforest Alliance, the Advisory Committee of the Fellowship in International Development of the Partners of the Americas and the American Council on Germany. Ms. Rennie also served for several years as the President of the Board of the Mexican Institute for Development. Ms. Rennie graduated from SUNY Stony Brook with a BA and attended Baruch College for an MBA in international business.