OMS was established in 1901 in Japan by Charles & Lettie Cowman, E.A. Kilbourne, and Juji Nakada. Originally we were known as ‘The Oriental Missionary Society’ (OMS), with our work concentrated on the Orient.

After World War II the work and ministries of OMS expanded beyond Asia into other countries on five continents. This necessitated a name-change to simply, One Mission Society, as we are known today.

As a global mission we have more than 400 missionaries serving in 20 countries plus associate workers and ministries in 23 additional nations. 

OMS work and ministries include:

  • Long term mission involvment
  • Every Community for Christ (ECC)
  • Short term mission
  • HOPE61 - Human Trafficking Prevention
  • Bible Colleges
  • Church planting
  • Compassion ministries

OMS is committed to the principle that ‘the sons and daughters of a nation will best win that nation for Christ.

OMS has therefore always sought to fulfill the Great Commission through a distinct four-fold ministry strategy:

  • Evangelim
  • Establishing believers into self-governing, self-propagating and self-supporting national churches
  • Discipling and training national workers 
  • Partnering with national churches and other organizations in ‘reaching the nations for Christ.’

Opportunities For Service: OMS has many opportunities for service for both short-term and longer terms. 


OMS has opportunities for service in a wide range of ministry roles in countries all over the world. Many of these ministry roles fit into the categories outlined here.

  • Church Planting
  • Biblical / Ministry Education
  • English teaching / evangelism
  • Sports & camp evangelism / discipleship
  • Medical ministry
  • Technical and administrative skills ministries

Gap ministry programs which give young adults a hands on experience and entry into missions are featured on the side.
One Mission Society is a not-for-profit faith mission, meaning that each missionary is responsible for raising his or her own support (with mentoring and encouragement from the OMS family).

Interested in Long Term Missions?  Click here for more info! You can also see the available opportunities to serve here.