The Institute of Buddhist Studies (IBS) became an affiliate with the GTU. Established in 1949, the Institute provides graduate-level Buddhist education, ministerial and chaplaincy training, and other educational programs in the San Francisco Bay Area.

Associated with the Buddhist Churches of America, the seminary and graduate school practices interreligious collaboration through its Master of Arts degree and lectures and programs that are open to all.

IBS became a member school of the GTU in 2022.