The first headquarters of The Oriental Missionary Society (OMS) was established in Tokyo, Japan in 1901. As work progressed into Korea and China, the headquarters was moved to Peking (Beijing) before World War II. Recognizing the need for a US base of operations for processing gifts, finances, communications, logistics, etc., the headquarters was moved to Los Angeles, California. In 1966, OMS moved the international headquarters to Greenwood, Indiana (just south of Indianapolis) in order to be closer to our core base of constituents.

OMS International operates several offices throughout the world that send missionaries from their country. Please select the country on the menu bar and you'll be directed to their page. You may also use the Contact Us form  to contact each office via email.