Phone Number

605-856-4991

Our Location

PO Box 1348, Mission, SD 57555

Frequently Asked Questions

What is the Society of Indian Missions?

Society of Indian Missions (SIM) is a Christian organization that has been serving Native American communities in the United States and Canada since 1951. Our mission is to evangelize, disciple, and mentor Native Americans in a life of scriptural holiness.

Where does SIM serve?

SIM staff live and work among the Sicangu (Rosebud) Sioux on the Rosebud Indian Reservation and the Oglala Sioux on the Pine Ridge Indian Reservation in South Dakota, building relationships, planting churches, discipling believers, and mentoring leaders.

Who founded the Society of Indian Missions?

SIM was founded by Raymond Montour, who felt a call from God to establish mission churches and raise up Native workers, starting his ministry in South Dakota in 1951.

How can I donate to SIM?

You can give online through our secure donation platform, mail a check to SIM at PO Box 1348, Mission, SD 57555, give by phone at 605-856-4991, or give via PayPal (paypal.me/simissions) or Cash App ($SIMissions).

Is my donation tax deductible?

Yes. Donations made through our secure online giving platform are tax deductible.

What can I designate my donation to?

You can designate your giving to the General Fund (overall operations), Missionary Support, the Project Fund (churches, schools, homes, and community projects), the Education Fund, or the Endowment Fund.

How can I volunteer with SIM?

You can join our volunteer team by filling out the volunteer form on our website. Volunteer opportunities include clerical/office work, landscaping and outdoor work, painting, construction and skilled labor, and preaching, teaching, or children’s ministry.

How can I join SIM's prayer team?

You can sign up for our prayer team through the prayer team form on our About Us page to receive requests and pray for our missionaries and the communities we serve.

What is Building Hope Enterprise?

Building Hope Enterprise (BHE) is an extension of SIM’s mission that provides high-quality construction and discipleship to families on the Rosebud Indian Reservation, run by SIM staff member Jonathan Lucas.

How can I contact the Society of Indian Missions?

You can reach SIM by phone at 605-856-4991, by email at [email protected], or by mail at PO Box 1348, Mission, SD 57555.