Ontario Museum Association

Ontario Musical Arts Centre

Ontario Neurotrauma Foundation

Ontario Power Generation Employees' And Pensioners' Charity...

Ontario Puppetry Association

Ontario Restaurant Association Scholarship Foundation

Ontario Social Development Council / Le Conseil Du...

Ontario Social Development Foundation

Ontario-lesotho Educational Sustaining Fund

Oolagen Charities

Oolagen Community Services

Open Arms Children's Foundation

Open Studio

Opera Canada Publications

Opera In Concert

Operation Bootstrap Incorporated

Operation Springboard

Operation Youth

Opportunities For Latin American Children

Opportunity For Advancement