Sarah Grilo was born in 1919 in Buenos Aires, where she took her former drawing lessons with Vicente Puig, the Spanish painter. She lived in France, England and also in the city of New York, after being awarded a scholarship by the J.S. Guggenheim Foundation in 1962. In 1970 she moved to Spain, where she lived until her death in 2007.
In 1952 she formed the Modern Artists Group together with Tomás Maldonado, Enio Iommi, José Antonio Fernández Muro and Lidy Prati, among others. This group gave many exhibitions in the Museo de Arte Moderno of Rio de Janeiro and in the Stedelijk of Amsterdam before its dissolution in 1957.
She gave solo and collective exhibitions in several galleries, museums and institutions located in the United States, Europe and South America. Currently, her works can be seen in the Museo Nacional de Bellas Artes de Buenos Aires (MNBA), the Cisneros Fontanals Art Foundation of Miami (CIFO)’s collection, the Stedelijk Museum of Art (Amsterdam), the Museo de Bellas Artes of Caracas, the Instituto de Arte Contemporáneo of Lima, the Museum of Modern Art of Latin America (Washington DC), The Nelson Rockefeller Collection (Nueva York), the University of Texas Art Museum, the Museo Español de Arte Contemporáneo (Madrid) and the Museo Nacional Centro de Arte Reina Sofía (Madrid), among others.