| Across Boundaries: An Ethnoracial Mental Health Centre, Mental Health and Addiction Support Services | Toronto |
| ADAPT Halton, Youth Programs | Halton Region |
| Adoption Council of Ontario, Markham - Mailing Address | Markham |
| Afghan Association of Ontario, Canada | Toronto |
| African Community Services of Peel, Brampton, Mental Health and Community Wellness | Brampton |
| African Community Services of Peel, Brampton, Violence Against Women Program | Brampton |
| Alcohol and Gaming Commission of Ontario, Alcohol and Gaming Regulation | Toronto |
| Arthritis Society Canada, Halton East and Peel Region, Mississauga | Mississauga |
| Associated Youth Services of Peel, Mississauga | Mississauga |
| Bartimaeus | Burlington |
| Body Brave, Body Brave Services | Hamilton |
| Boots on the Ground, Peer Support for First Responders | Angus |
| Burlington Mindfulness, Mindfulness Instruction | Burlington |
| Canada. Indigenous Services Canada, Supports for Missing and Murdered Indigenous Women and Girls (MMIWG) | Gatineau |
| Canada. Indigenous Services Canada, Non-Insured Health Benefits Program | Ottawa |
| Canadian Cancer Society - Ontario Division - Peer Match Program, Canadian Cancer Society - Ontario Division | Toronto Downtown North |
| Canadian Coalition for Seniors' Mental Health, Markham | Markham |
| Canadian Counselling and Psychotherapy Association | Ottawa |
| Canadian Mental Health Association, Oakville - Halton Region Branch Head Office, Mental Health Services | Oakville |
| Canadian Mental Health Association, Education and Training | 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 |
| Canadian Mental Health Association, York Region and South Simcoe, BounceBack Ontario | Vaughan |
| CarePoint Health, Brampton-Halton-Mississauga-South Etobicoke, Ontario Structured Psychotherapy Program | Mississauga |
| Centre for Addiction and Mental Health, CAMH Support Resources and Information Services | Toronto |
| Children's Mental Health Ontario | Toronto |
| Chinese Association of Mississauga, Mississauga | Mississauga |
| College of psychologists and behaviour analysts of Ontario (The) | Toronto Downtown North |
| College of Registered Psychotherapists of Ontario | Toronto Downtown |
| Covenant House Toronto, Awareness and Prevention School Presentations, Toronto - Gerrard St E | Toronto |
| Crohn's and Colitis Canada | Toronto Downtown Central |
| Distress Centres of Greater Toronto, Survivor Support Program | Toronto |
| eMentalHealth.ca | Ottawa |
| Empowerment Council (Addiction and Mental Health), Systemic Advocacy and Education | Toronto |
| Equilibrium, Oakville, Mood Disorder Support Group | Oakville |
| Families for Addiction Recovery, Peer Support Services | Toronto |
| Friendship Bench (The) | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Child and Adolescent Clinic | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Early Intervention in Psychosis Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Older Adult Mental Health Clinic | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Recovery Through Education of Adolescent and Children in Halton (REACH) | Oakville |
| Halton Suicide Prevention Coalition | Halton Region |
| Halton Suicide Prevention Coalition, BeSafe App | Halton Region |
| HeadsUpGuys, Online Depression Resources for Men | Vancouver |
| How to Find - Counselling and Therapist Services, Halton Region | Halton Region |
| How to Find - Food and Emergency Housing, Halton Hills | Halton Hills |
| Indus Community Services, Newcomer Services, Mississauga Head Office - Hurontario Suite 206 | Mississauga |
| Institute for Advancements in Mental Health, Toronto Provincial Office | Toronto |
| Jack.org, Halton Chapters | Halton Region |
| Jack.org, BeThere.org - Online Mental Health Supports | Toronto |
| Joseph Brant Hospital, Burlington, Mental Health Services | Burlington |
| Kidney Foundation of Canada, Ontario Branch | Mississauga |
| Lesbian Gay Bi Trans YouthLine, Text and Chat YouthLine | Toronto |
| Liver Canada | Markham |
| Maternal Minds, Support Group Programs | Milton |
| Mental Health Mutual-Aid Hub Canada, Mandarin Hotline and Mental Health Support | Toronto |
| Métis Nation of Ontario, Brampton | Brampton |
| Mood Disorders Association of Ontario, Peer Supports and Services (Toronto) | Toronto |
| Naseeha Mental Health, Mississauga, Peer Counselling and Information | Mississauga |
| National Eating Disorder Information Centre | Toronto Downtown Central |
| National Initiative for Eating Disorders, Education and Support Services | Toronto |
| Native Women's Resource Centre of Toronto, Community Programs | Toronto |
| Oak Park Neighbourhood Centre, Adult Programs | Oakville |
| Oakville OASIS Drawing Bee | Oakville |
| Ontario Psychological Association, Psychologists Referral Service | Toronto |
| Ontario Society of Registered Psychotherapists | Toronto Downtown Central |
| PCHS, PCHS Brampton | Brampton |
| PCHS, PCHS Mississauga | Mississauga |
| Re-Imagine Ontario, Community Supports for Vulnerable Youth and Seniors | Oakville |
| Responsible Gambling Council, Outreach and Prevention | Toronto |
| Restorations Second Stage Homes, Burlington - Unpublished address, Nancy's House | Burlington |
| ROCK, Danielle's Place - Eating Disorder Support and Resource Centre | Burlington |
| ROCK, Group Based Mental Health Services | Halton Region |
| ROCK, Individualized Mental Health Services | Halton Region |
| SAFE (Survivor Advocates for Empowerment), Victim & Survivor Support Services & Advocacy | Halton Region |
| Sheridan College, Sheridan Student Union - Student Services | Oakville |
| SOS First Aid, First Aid and Safety Training | Halton Region |
| St John Ambulance - Halton Region, Oakville Office, First Aid Instruction, Supplies and Community Services | Oakville |
| St Joseph's Healthcare Hamilton, Burlington Locations, Ontario Structured Psychotherapy West Region | Burlington |
| Stride, Employment Peer Mentor Program | Halton Region |
| Summit Housing & Outreach Programs, Oakville, Supportive Housing & Outreach Programs | Oakville |
| Support House, Peer Services - Centre for Innovation in Peer Support | Oakville |
| Support House, Supportive Housing | Oakville |
| Toronto Pflag | Toronto |
| Unsinkable, Mental Health Support and Awareness | Toronto |
| Unsinkable, Unsinkable Youth | Oakville |
| Veterans Transition Network | Ontario |
| Victim Services of Stormont, Dundas, Glengarry and Akwesasne, Internet Child Exploitation Counselling Program | Cornwall |
| We Matter, Indigenous Youth Support | British Columbia |
| Wings of Change - Peer Support, Peer Support for First Responders | Canada |
| Women's Centre of Halton (The), One-on-One Support Services | Oakville |
| Woodview Mental Health and Autism Services | Burlington |
| YMCA of Hamilton / Burlington / Brantford, Burlington - Ron Edwards Family YMCA, Youth Wellness Series | Burlington |
| YMCA of Oakville, Youth Mental Wellness Programs | Oakville |
