Serving in Mission (SIM) is an international organization with more than 1,600 active missionaries serving in more than 50 countries. SIM is founded on the command Christ gave in Matt 28:19-20:

"Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you."

SIM seeks to challenge churches to obey this command, providing leadership training and practical help. Their purpose is to glorify God by planting churches, and partnering with churches around the world.

All of SIM ministries are motivated by the belief that mankind is lost and needs redemption through Christ Jesus, our Savoir. SIM acknowledges that man's ultimate need is to know God. He calls us to be compassionate and serve in this broken world, spreading the good news to people who are suffering, no matter the circumstances. Believing there is more to evangelizing than introducing the word of God, SIM’s commission includes teaching the Word of God, helping people discover their gifts and talents, enabling them to serve others, and helping them mature in their faith.

SIM's major focus is reaching un-evangelized countries and peoples. Where there is no church, SIM works to start one. Where there is a church, SIM seeks to work with that church toward a dynamic and interdependent church-mission relationship so that together we can reach out to the unreached world. SIM has a fundamentally different focus from specialized service agencies that might focus on linguistics, or medicine. Although SIM may be involved with many of those specialty areas, their focus is always on the church.