Ontario Nurses' Association was created in 1973.
Ontario Hospital Association was created in 1924.
Ontario Library Association was created in 1900.
Ontario Medical Association was created in 1880.
Ontario Dental Association was created in 1867.
Alberta Soccer Association was created in 1911.
United Soccer Association was created in 1967.
Ontario Association of Career Colleges was created in 1973.
Ontario Association of Food Banks was created in 1992.
Ontario Sustainable Energy Association was created in 2001.
Ontario Co-operative Association was created in 2002.
Gordon Head Soccer Association was created in 1956.