The late 1920s and 1930s was a period of heightened growth for Pi Gamma Mu. Columbia University in New York City was the first large university to establish a chapter (1925) of the society. The University of Hawaii chapter was the first to be organized outside of the continental United States. In 1932, the first foreign chapter was chartered at the University of Toronto in Canada. Later that year, a chapter was also installed at the University of the Philippines; a second Philippine chapter was organized at De La Salle University in 1989. In 1955, the trustees of Pi Gamma Mu voted to grant a charter to the Pontifical Catholic University of Puerto Rico. In 2007, the Kuwait Alpha at the American University of Kuwait became Pi Gamma Mu's newest international chapter.