When my parents were serving on the Mission field with SIM it stood for Sudan Interior Mission. That name no longer makes any sense geographically, and they have changed their name to Serving in Mission. SIM was founded in 1893 by two Canadians, Walter Gowans and Roland Bingham, and American Thomas Kent. SIM MKs have attended a bunch of schools in the past including the following list (not all of these schools were boarding schools, and not all were run specifically by SIM) :
- The American Cooperative School in La Paz, Bolivia
- Asuncion Christian Academy in (I think) Paraquay
- Bingham Academy in Ethiopia
- Carachipampa Christian School in Bolivia
- ELWA in Liberia
- Good Shepherd (not sure where this is)
- Gowan’s Home in Canada
- International Christian Academy in Cote D’Ivoire
- Kent Academy and Hillcrest (Niger Creek Hostel) in Nigeria
- Rift Valley Academy in Kenya
- Sahel Academy in Niamey, Niger
- Sakeji in Zambia
My experiences were at Kent Academy and Hillcrest (Niger Creek), built and run by SIM.
Today, SIM is an international mission organization with more than 1,600 active missionaries serving in more than 50 countries.