| Agriculture Wellness Ontario, No physical address - Ontario-wide, In the Know | Ontario |
| Alzheimer Society of Muskoka, First Link Program | Bracebridge |
| Brightshores Health System, Owen Sound Hospital, Mental Health and Addiction Services Department - Dual Diagnosis Program | Owen Sound |
| Brightshores Health System, Owen Sound Hospital, Mental Health and Addiction Services Department | Owen Sound |
| Canadian Mental Health Association - Peel Dufferin, Orangeville Office, Mental Health Supports | Orangeville |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Owen Sound - 1024 2nd Ave E, Grey Bruce Friends and Neighbours (FAN) Club | Owen Sound |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Owen Sound - 1024 2nd Ave E, Peer Support and Information | Owen Sound |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Owen Sound - 1024 2nd Ave E, Recovery College | Owen Sound |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Owen Sound - 1024 2nd Ave E, Talk Today | Owen Sound |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Owen Sound - 1101 2nd Ave E, Suite 205 | Owen Sound |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Various Locations, Social Recreation and Rehabilitation/Group Services | Owen Sound |
| Canadian Mental Health Association Haliburton, Kawartha, Pine Ridge, Peterborough - George St N, Administration Office | Peterborough |
| Children's Mental Health Ontario | Toronto |
| Chippewas of Nawash Unceded First Nation, Neyaashiinigmiing - 247 Prairie Rd, Youth Mental Health Program | Neyaashiinigmiing |
| College of psychologists and behaviour analysts of Ontario (The) | Toronto Downtown |
| Georgian Bay Family Health Team | Collingwood |
| Grey Bruce WeCARE Network | Owen Sound |
| Huron Health System - Alexandra Marine and General Hospital, Goderich - Huron Rd, Huron Perth Clinical Intensive Case Management | Goderich |
| Nogojiwanong Friendship Centre, Mental Health and Well-Being Program, Peterborough - 884 Ford St | Peterborough |
| North Simcoe Youth Wellness Hub, North Simcoe | Midland |
| Northumberland Hills Hospital, Community Mental Health Services | Cobourg |
| Patient / Client and Family Council, Penetanguishene | Penetanguishene |
| Saugeen First Nation, Saugeen First Nation - 47 Mason Dr, Building Healthy Communities | Saugeen First Nation |
| School Mental Health Ontario | Hamilton |
| Simcoe County Suicide Awareness Council, No Physical Address | Barrie |
| Simcoe Peer Support for Mental Health and Addictions, Collingwood | Collingwood |
| South Georgian Bay Community Health Centre, Wasaga Beach, Community Programs | Wasaga Beach |
| The Guardian Network, Field Service | Toronto |