OISM was organized in the 1960s to foster closer relationships between students of canonical Orthodox seminaries in the US and Canada. Seminaries active in OISM include:
- Christ the Savior Seminary, Johnstown, PA
- Holy Cross Seminary, Brookline, MA
- Holy Trinity Seminary, Jordanville, NY
- St. Herman Seminary, Kodiak, AK
- St. Tikhon Seminary, South Canaan, PA
- St. Vladimir Seminary, Crestwood, NY
- St. Andrew Seminary, Winnipeg, MB.
Each seminary elects a representative to serve as a liaison between the interim board and their respective school.
Fr. Kilian Sprecher, President