ONA Local 9 represents registered nurses and health professionals in the following workplaces:

Albright Gardens Homes Inc.
Bethesda Services
Extendicare, St Catharines
Foyer Richelieu, Welland
Garden City Manor
Hamilton Niagara Haldimand Brant LHIN
Henley House Long Term Care
Oakwood Park Lodge
Region of Niagara Homes for the Aged
Ridley College
Royal Rose Place
St Joseph’s Home Care
The Regional Municipality of Niagara/Public Health Unit
Valley Park Lodge
West Park Health Centre