| Canadian Mental Health Association, York Region and South Simcoe, CMHA Alliston | New Tecumseth |
| Canadian Mental Health Association. Simcoe County Branch, Barrie - 128 Anne St S, Addiction Services | Barrie |
| Canadian Mental Health Association. Simcoe County Branch, Barrie - 128 Anne St S, Case Management | Barrie |
| Canadian Mental Health Association. Simcoe County Branch, Collingwood - 186 Erie St - Suite 101, Addiction Services | Collingwood |
| Canadian Mental Health Association. Simcoe County Branch, Midland, Addiction Services | Midland |
| Canadian Mental Health Association. Simcoe County Branch, Orillia - 50 Nottawasaga St, Addiction Services | Orillia |
| Collingwood General and Marine Hospital, Outpatient Mental Health Services | Collingwood |
| Collingwood General and Marine Hospital, Wasaga Beach Satellite Office, Outpatient Mental Health Services, Wasaga Beach Satellite Office | Wasaga Beach |
| Enaahtig Healing Lodge and Learning Centre, Orillia Location, Mental Health Outreach Team | Orillia |
| Georgian Bay Family Health Team | Collingwood |
| Kinark Child and Family Services, Barrie - Simcoe St, Family, Individual, and Group Counselling | Barrie |
| Kinark Child and Family Services, Midland Office, Family, Individual, and Group Counselling | Midland |
| La Clé, Children & Youth Mental Health Services, 63 Main St - Penetanguishene | Penetanguishene |
| Meeting Place (The), Orillia | Orillia |
| New Path Youth and Family Services of Simcoe County, Alliston Office, Child and Youth Mental Health Quick Access Clinic | New Tecumseth |
| New Path Youth and Family Services of Simcoe County, Alliston Office, Youth and Family Counselling Services | New Tecumseth |
| New Path Youth and Family Services of Simcoe County, Barrie - Lakeshore Dr, Attendance Centre | Barrie |
| New Path Youth and Family Services of Simcoe County, Barrie - Lakeshore Dr, Child and Youth Mental Health Quick Access Clinic | Barrie |
| New Path Youth and Family Services of Simcoe County, Barrie - Lakeshore Dr, Youth and Family Counselling Services | Barrie |
| New Path Youth and Family Services of Simcoe County, Barrie Head Office, Adolescent Outreach Program | Barrie |
| New Path Youth and Family Services of Simcoe County, Barrie Head Office, Child and Youth Mental Health Quick Access Clinic | Barrie |
| New Path Youth and Family Services of Simcoe County, Barrie Head Office, Early Years Services | Barrie |
| New Path Youth and Family Services of Simcoe County, Barrie Head Office | Barrie |
| New Path Youth and Family Services of Simcoe County, Barrie Head Office, Youth and Family Counselling Services | Barrie |
| New Path Youth and Family Services of Simcoe County, Bradford Office, Child and Youth Mental Health Quick Access Clinic | Bradford West Gwillimbury |
| New Path Youth and Family Services of Simcoe County, Bradford Office, Youth and Family Counselling Services | Bradford West Gwillimbury |
| New Path Youth and Family Services of Simcoe County, Collingwood Office, Child and Youth Mental Health Quick Access Clinic | Collingwood |
| New Path Youth and Family Services of Simcoe County, Collingwood Office, Youth and Family Counselling Services | Collingwood |
| New Path Youth and Family Services of Simcoe County, Cookstown Office, Live in Treatment Services | Innisfil |
| New Path Youth and Family Services of Simcoe County, Midland Office, Child and Youth Mental Health Quick Access Clinic | Midland |
| New Path Youth and Family Services of Simcoe County, Orillia Office, Child and Youth Mental Health Quick Access Clinic | Orillia |
| New Path Youth and Family Services of Simcoe County, Orillia Office, Youth and Family Counselling Services | Orillia |
| Orillia Soldiers' Memorial Hospital, Orillia - 170 Colborne St W - Eleanor Johnson Wing, Community Mental Health Service | Orillia |
| Patient/Client and Family Council, Midland Health Hub, Family Support | Midland |
| Patient/Client and Family Council, Waypoint Centre, Family Support | Penetanguishene |
| Simcoe Muskoka Family Connexions, Bracebridge Office, Child and Youth Mental Health Programs | Bracebridge |
| Simcoe Muskoka Family Connexions, Huntsville Office, Child and Youth Mental Health Programs | Huntsville |
| Stevenson Memorial Hospital, Mary McGill Community Mental Health Program | New Tecumseth |
| Waypoint Centre for Mental Health Care, Midland - Jones Rd, Ontario Structured Psychotherapy Program | Midland |
| Waypoint Centre for Mental Health Care, Penetanguishene - 500 Church St - Administration Bldg, Frontline Wellness Program | Penetanguishene |
| Wendat Community Programs, Midland, Adult Mental Health Services - Case Management Program | Midland |
| Wendat Community Programs, Midland, Adult Mental Health Services - Crisis Services | Midland |
| Wendat Community Programs, Midland, Adult Mental Health Services - Social Club | Midland |
| Wendat Community Programs, Penetanguishene, Psychogeriatric - Transition Service | Penetanguishene |