The Sisterhood Is Global Institute (SIGI) is an international non-governmental organization. For almost three decades, SIGI has been a consultant to the United Nations.
SIGI was founded in 1984 by Robin Morgan and Simone de Beauvoir. A spinoff of "Sisterhood Is Global", SIGI was the "first international feminist think tank".
References
Sisterhood Is Global Institute Wikipedia(Text) CC BY-SA