SIM is a century-old catalyst for global mission that brings good news to hard places because there are people living and dying without the gospel. By prayer, SIM’s 4,000+ workers from 65 different nations respond to need, proclaim the gospel, and equip the Church in over 70 countries worldwide.

Check out this brief (2-minute) video to learn more about how SIM brings the good news of Jesus to communities where He is least known.


Convinced that no one should live and die without hearing God’s good news, we believe that He has called us to make disciples of the Lord Jesus Christ in communities where He is least known.


Therefore, compelled by God’s great love and empowered by the Holy Spirit:

• We cross barriers to proclaim the crucified and risen Christ, expressing His love and compassion among those who live and die without Him.

• We make disciples who will trust and obey Jesus, and become part of Christ-centered churches.

• We work together with churches to fulfill God’s mission across cultures locally and globally.

• We facilitate that participation in cross-cultural ministry of those whom God is calling.


In 1893, three young men in their 20s had a vision to evangelize the 60 million unreached people of sub-Saharan Africa (then known as the Sudan). Unable to interest established missions—most of which said reaching the Sudan was impossible—the three set out alone forming the Sudan Interior Mission. In the 1980s, two missions in Asia and South America joined with SIM. A third merged with SIM in 1998. Today, our official name around the world is simply SIM.
SIM is what is called a “general mission”. That means our workers are involved in many types of ministry around the world. Some organizations focus on specific types of ministry (clean water, children, education, relief and aid, etc.). SIM workers are involved in these ministries as well as many others. We often partner with specialized missions in Bible translation, radio outreach, community development, medicine, HIV and AIDS ministry, aviation, and more, but our distinctive is our church-focused vision. Many of our workers serve as church planters in pioneer areas or in partnership with local churches in discipleship, evangelism, or theological education.
SIM workers receive prayer and financial support from churches, friends, and others who are passionate about their ministry. The level of support needed for each worker or family depends on several factors. Where someone is serving and the type of ministry they are involved in will change their financial needs. We work with our personnel to determine what their individual needs are before and during the support raising process.
While our workers come from various Christian denominational backgrounds, we are each committed to the essential truths of biblical Christianity. See our Statement of Faith for more information.
Let’s start with a conversation. Click on "Get Started" under "GO" in our main menu and complete the brief form. One of our team members will connect with you to hear your story, share ours and pray with you about next steps.
We partner with universities, churches, and other organizations to respond to need, proclaim the gospel, and equip the Church around the world. All SIM policy and principles of relationship are detailed in the SIM Mission Policy which is available for review upon request.

Connect With Us

God invites each of us to engage in His kingdom work. Some may serve overseas, some at home. SIM would be glad to help you discern how your skills could be used in God’s work around the world.