The OSF has branches in 37 countries, encompassing a group of country and regional foundations, such as the Open Society Initiative for West Africa, and the Open Society Initiative for Southern Africa; its headquarters are in New York City.
Open Society Foundations memiliki cabang di 37 negara, meliputi sekelompok negara dan yayasan regional, seperti Open Society Initiative for West Africa, dan Open Society Initiative for Southern Africa; markas besarnya berada di Kota New York.