| Canadian Coalition for Seniors' Mental Health, Markham | Markham |
| Canadian Mental Health Association, Oakville - Halton Region Branch Head Office, Mental Health Services | Oakville |
| Canadian Mental Health Association, Milton and Halton Hills, Mental Health Services | Milton |
| Canadian Mental Health Association, National, Toronto - Online/Web Service, Mental Health Resources | Toronto |
| Centre for Addiction and Mental Health, CAMH Support Resources and Information Services | Toronto |
| Chinese Association of Mississauga, Mississauga | Mississauga |
