Hermandad de Sigma Iota Alpha, Incorporada (ΣΙΑ), known as 'SIA,' is a Latina-oriented Greek letter intercollegiate and independent sorority, founded on September 29, 1990, by 13 women from SUNY Albany, Stony Brook University, SUNY New Paltz, and Rensselaer Polytechnic Institute. The sorority participates in local, national and international community service as well as educational, cultural and social events.