Oopsadazy Rescue And Santuary Society

Open Door Senior Fellowship Of Calgary

Open House Bible Fellowship (ohb)

Open To Grow

Opening Gaits Therapeutic Riding Society Of Calgary

Operation Eyesight Universal

Operation Eyesight Universal

Operation Kickstart Society Of Alberta

Operation Red Nose Society Service To The Impaired Driver

Operation World Evangelism

Opportunity Works Calgary Incorporated

Optometry Giving Sight

Osu Children's Library Fund

Our Lady Of Fatima Catholic Church

Our Lady Of Grace Italian And English Church

Our Lady Of Guadalupe Parish

Our Lady Of Peace, Sarcee Mission

Our Lady Of Perpetual Help Church

Our Lady Queen Of Peace Church

Our Lady Queen Of Peace Foundation (canada) Inc.