Almost all hospitals in Ontario that are eligible to participate in the Hospital Report project voluntarily choose to contribute their data to the study and share in the findings. The overall participation rate is exceedingly high. In most cases our reports reflect more than 97% of the annual provincial patient volumes.

The hospitals listed below have participated in one or more of our reports

• Alexandra Hospital
• Alexandra Marine & General Hospital
• Algonquin Health Services (now part of Muskoka Algonquin Healthcare)
• Almonte General Hospital
• Arnprior & District Memorial Hospital
• Atikokan General Hospital
• Baycrest Centre for Geriatric Care
• Blind River District Health Centre
• Bluewater Health
• Bridgepoint Health
• Brockville General Hospital
• Cambridge Memorial Hospital
• Campbellford Memorial Hospital
• Carleton Place & District Memorial Hospital
• Centre for Addiction and Mental Health
• Chatham-Kent Health Alliance
• Children's Hospital of Eastern Ontario
• Collingwood General & Marine Hospital
• Cornwall Community Hospital
• Deep River and District Hospital
• Dryden Regional Health Centre
• Englehart & District Hospital
• Espanola General Hospital
• Four Counties Health Services
• Geraldton District Hospital
• Glengarry Memorial Hospital
• Grand River Hospital
• Grey Bruce Health Services
• Groves Memorial Community Hospital
• Guelph General Hospital
• Haldimand War Memorial Hospital
• Haliburton Highlands Health Services
• Halton Healthcare
• Hamilton Health Sciences
• Hanover & District Hospital
• Headwaters Health Care Centre
• Homewood Corporation
• Hôpital Général de Hawkesbury & District General Hospital Inc.
• Hopital Montfort
• Hopital Notre-Dame Hospital
• Hopital regional de Sudbury Regional Hospital
• Hornepayne Community Hospital
• Hotel Dieu Health Sciences Hospital, Niagara (now part of the Niagara Health System)
• Hotel Dieu Hospital
• Hotel-Dieu Grace Hospital
• Humber River Regional Hospital
• Huron Perth Healthcare Alliance
• Huronia District Hospital - North Simcoe Hospital Alliance
• Joseph Brant Memorial Hospital
• Kemptville District Hospital
• Kingston General Hospital
• Kirkland and District Hospital
• Lady Dunn Health Centre
• Lake of the Woods District Hospital
• Lakeridge Health
• Leamington District Memorial Hospital
• Lennox & Addington County General Hospital
• Listowel & Wingham Hospitals Alliance
• London Health Sciences Centre
• Manitoulin Health Centre
• Manitouwadge General Hospital
• Markham Stouffville Hospital
• Mattawa General Hospital
• McCausland Hospital
• Mental Health Centre Penetanguishene
• MICs Group Health Services
• Mount Sinai Hospital
• Niagara Health System
• Nipigon District Memorial Hospital
• Norfolk General Hospital
• North Bay General Hospital
• North Bay Psychiatric Hospital (now known as the Northeast Mental Health Centre)
• North Wellington Health Care
• North York General Hospital
• Northeast Mental Health Centre
• Northumberland Hills Hospital
• Orillia Soldiers' Memorial Hospital
• Pembroke Regional Hospital
• Perth & Smiths Falls District Hospital
• Peterborough Regional Health Centre
• Providence Continuing Care Centre
• Providence Healthcare
• Queensway Carleton Hospital
• Quinte Health Care
• Red Lake Margaret Cochenour Memorial Hospital
• Renfrew Victoria Hospital
• RHSJ Health Centre of Cornwall (now known as St. Joseph's Continuing Care Centre)
• Riverside Health Care Facilities Inc.
• Ross Memorial Hospital
• Rouge Valley Health System
• Royal Ottawa Health Care Group
• Royal Victoria Hospital
• Runnymede Healthcare Centre
• Sault Area Hospital
• Sensenbrenner Hospital
• Services de sante de Chapleau Health Services
• Sioux Lookout Meno-Ya-Win Health Centre
• Sisters of Charity of Ottawa (SCO) Health Service (now known as Bruyère Continuing Care)
• Smooth Rock Falls Hospital
• South Bruce Grey Health Centre
• South Huron Hospital
• South Muskoka Memorial Hospital (now part of Muskoka Algonquin Healthcare)
• Southlake Regional Health Centre
• St. Francis Memorial Hospital
• St. John's Rehabilitation Hospital
• St. Joseph's Care Group
• St. Joseph's General Hospital
• St. Joseph's Health Care London
• St. Joseph's Health Centre
• St. Joseph's Health Centre, Guelph
• St. Joseph's Healthcare Hamilton
• St. Mary's General Hospital
• St. Michael's Hospital
• St. Peter's Hospital
• St. Thomas-Elgin General Hospital
• Stevenson Memorial Hospital
• Strathroy Middlesex General Hospital
• Sunnybrook & Women's College Health Sciences Centre
• Temiskaming Hospital
• The Brantford General Hospital
• The Credit Valley Hospital
• The Hospital for Sick Children
• The Ottawa Hospital
• The Penetanguishene General Hospital Inc. - North Simcoe Hospital Alliance
• The Scarborough Hospital
• The West Nipissing General Hospital
• The Willett Hospital
• Thunder Bay Regional Health Sciences Centre
• Tillsonburg District Memorial Hospital
• Timmins & District Hospital
• Toronto East General Hospital
• Toronto Grace Hospital
• Toronto Rehabilitation Institute
• Trillium Health Centre
• University Health Network
• West Haldimand General Hospital
• West Lincoln Memorial Hospital
• West Park Healthcare Centre
• West Parry Sound Health Centre
• Whitby Mental Health Centre (now known as Ontario Shores Centre for Mental Health Sciences)
• William Osler Health Centre
• Wilson Memorial General Hospital
• Winchester District Memorial Hospital
• Windsor Regional Hospital
• Woodstock General Hospital
• York Central Hospital