SIM engages in many types of ministries around the world. This means we are a general mission. Some organizations specialize in ministry categories such as clean water, children, education, or relief aid. SIM workers engage in these ministries as well as many others. We also partner with specialized missions in Bible translation, radio outreach, community development, medicine, HIV and AIDS ministry, aviation, and more. Our distinctive is our church-focused vision. Many of our workers work as church planters in pioneer areas and in partnership with local churches in discipleship, evangelism, or theological education.

SIM workers raise prayer and financial support from churches, friends, and others who commit to partner with them in ministry. SIM receives and administers donations for our workers on their behalf, including sending receipt acknowledgements to missionary partners.

SIM is an international mission organization with more than 4,000 workers serving in about 70 countries. SIM members are multi-ethnic and multinational themselves, representing more than 70 nationalities. They also serve in a wide variety of career fields. The SIM family can use people of every country who have almost any skill imaginable!

Our workers come from various Christian denominational backgrounds, but all are committed to the essential truths of biblical Christianity. See our Statement of Faith for more details.

We partner with universities, churches, and other organizations to see a witness to Christ's love where He is least known, disciples of Jesus expressing God's love in their communities, and Christ-centered churches among all peoples.'

In 1893, three young men in their twenties had a vision to evangelize the 60 million people of sub-Saharan Africa (then known as the Sudan) who were living and dying without Christ. 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, 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.

Contact us at the link here about getting involved in SIM ministries around the world. We would love to talk with you soon about opportunities to serve through the SIM community.