| 988 Suicide Crisis Helpline | Ontario |
| AbleLiving Services, Burlington - Bethany Residence, Supportive Housing | Burlington |
| Aboriginal Legal Services | Toronto |
| ABRAR Trauma and Mental Health, ABRAR Trauma and Mental Health Services | |
| ADAPT Halton, Oakville - Head Office, Alcohol, Drug and Gambling Assessment, Prevention and Treatment Services | Oakville |
| ADAPT Halton, Community Justice Programs | Halton Region |
| ADAPT Halton, Community Withdrawal Management Services | Halton Region |
| ADAPT Halton, Concurrent Disorders Programs | Halton Region |
| ADAPT Halton, Problem Gambling & Behavioural Addictions Services | Halton Region |
| ADAPT Halton, Youth Programs | Halton Region |
| Al-Anon Family Groups, Halton Hills and Milton, Al-Anon and Alateen Meetings | Halton North |
| Al-Anon Family Groups, Hamilton / Burlington, Al-Anon / Alateen Meetings | Burlington |
| Al-Anon Family Groups, Oakville, Al-Anon / Alateen Meetings | Oakville |
| Alcoholics Anonymous, Oakville - Halton District Office, Halton Area Meetings | Halton Region |
| Alcoholics Anonymous - North Halton/Erin, North Halton / Erin District, Erin and Area Meetings | Erin |
| Alcoholics Anonymous (GTA), Find an Alcoholics Anonymous Meeting - Greater Toronto Area Intergroup | Ontario |
| Alcoholics Anonymous Hamilton, Alcoholics Anonymous Meetings | |
| Anonymous Friend, Youth Peer to Peer Mental Health Support | Oakville |
| Associated Youth Services of Peel, Mississauga | Mississauga |
| Bartimaeus | Burlington |
| Black Youth Helpline, Helpline and Supports | North York |
| Bob Rumball Canadian Centre of Excellence for the Deaf, PAH! | Milton |
| Body Brave, Body Brave Services | Hamilton |
| breakingfreeonline, Online/Web Service | London |
| Canadian Cancer Society - Ontario Division, Smokers' Helpline | Toronto Downtown North |
| Canadian Centre on Substance Use and Addiction | 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, Mobile Outreach Team - COAST - Crisis Outreach and Support Team | 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 |
| Centre for Addiction and Mental Health, Addiction Medicine Services and Specialized Clinics | Toronto |
| Centre for Addiction and Mental Health, CAMH Support Resources and Information Services | Toronto |
| Centre for Addiction and Mental Health, INTREPID Lab | Toronto |
| Centre for Addiction and Mental Health, Youth Vaping, Alcohol, Substance Use and Technology Dependence Program | Toronto |
| Certified Listeners Society | Burlington |
| Child and Parent Resource Institute (CPRI) | London |
| Cocaine Anonymous | Toronto Downtown Central |
| ConnexOntario, Helpline | London |
| ConnexOntario, mindyourmind | London |
| Debtors Anonymous, Oakville - Mailing Address | Oakville |
| Distress and Crisis Ontario | Waterloo |
| Distress Centre Halton | Halton Region |
| EFry Hope and Help for Women, Mississauga Office | Mississauga |
| eMentalHealth.ca | Ottawa |
| Equilibrium, Oakville, Mood Disorder Support Group | Oakville |
| Families for Addiction Recovery, Peer Support Services | Toronto |
| First Nations and Inuit Hope for Wellness Helpline, Mental Health Helpline and On-line Chat Counselling Services | Ontario |
| Friendship Bench (The) | Oakville |
| Gamblers Anonymous, Compulsive Gambling Support Services | Vaughan |
| Ganohkwasra Family Assault Support Services, Ohsweken - Chiefswood Rd, Community Counselling | Ohsweken |
| Ganohkwasra Family Assault Support Services, Ohsweken - Sunrise Crt, Youth Lodge | Ohsweken |
| Good2Talk, Good2Talk Mental Health Supports | Toronto |
| Goodwill Industries, Ontario Great Lakes, Burlington - Upper Middle Road, Goodwill Career Centre - Ontario Disability Support Program Employment Supports | Burlington |
| Goodwill Industries, Ontario Great Lakes, Goodwill Pathways to Employment Program | Hamilton |
| Goodwill Industries, Ontario Great Lakes, Goodwill Transitional Employment and Mentoring Program | Hamilton |
| Halton & Mississauga RAAM Clinic, Oakville - Head Office, Rapid Access Addiction Medicine (RAAM) | Oakville |
| Halton & Mississauga RAAM Clinic, Burlington, Addiction Medicine Clinic | Burlington |
| Halton & Mississauga RAAM Clinic, Georgetown, Addiction Medicine Clinic | Halton Hills |
| Halton & Mississauga RAAM Clinic, Milton, Addiction Medicine Clinic | Milton |
| Halton & Mississauga RAAM Clinic, Oakville - 1525 Cornwall Rd, Addiction Medicine Clinic | Oakville |
| Halton & Mississauga RAAM Clinic, Oakville - Kerr St, Addiction Medicine Clinic | Oakville |
| Halton Black Voices | Halton Region |
| Halton Healthcare, Acton, North Halton Mental Health Clinic | Acton |
| Halton Healthcare, Georgetown, North Halton Mental Health Clinic | Georgetown |
| Halton Healthcare, Milton District Hospital, Outpatient Mental Health Urgent Care Clinic | Milton |
| Halton Healthcare, Milton, North Halton Mental Health Clinic | Milton |
| Halton Healthcare, Mississauga Halton Central Intake Program - one-Link - Addictions and Mental Health Services Referral | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Child and Adolescent Clinic | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Child and Adolescent Eating Disorders Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Child and Adolescent Services | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Community Case Management | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Early Intervention in Psychosis Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Integrated Addiction Medicine Clinic | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Navigator Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Outpatient Psychotherapy Services | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Outpatient Services | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Psychotherapy Services | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Recovery Through Education of Adolescent and Children in Halton (REACH) | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health Day Program | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Outpatient Mental Health Urgent Care Clinic | Oakville |
| Halton Regional Police Service, Mobile Crisis Rapid Response Team | Halton Region |
| Halton Regional Police Service, Halton Youth Diversion Program | Oakville |
| Halton Regional Police Service, Victim Quick Response Program+ | Oakville |
| Halton Regional Police Service, Victim Services Unit | Oakville |
| Halton Suicide Prevention Coalition, BeSafe App | Halton Region |
| Homewood Health Centre | Guelph |
| Hope Bible Church Oakville, Recovery Group | Oakville |
| Hope Place Centres, Men's Bed-Based Addiction Treatment Program | Halton Hills |
| Hope Place Centres, Community Based Addiction Treatment | Halton Hills |
| Hope Place Centres, Women's Bed-Based Addiction Treatment Program | Halton Hills |
| Horizons Opioid Treatment Service, Methadone and Suboxone Clinic | Burlington |
| Hospital for Sick Children, Adolescent Medicine | Toronto |
| How to Find - Crisis and Distress Services, Halton Region | Halton Region |
| How to Find - Employment, Apprenticeship, Training and Literacy Programs, Halton Region | Halton Region |
| How to Find - Sexual Assault and Domestic Violence Crisis Services, Halton Region | Halton Region |
| Institute for Advancements in Mental Health, Toronto | Toronto |
| Interligne | |
| Jack.org, Halton Chapters | Halton Region |
| Jack.org, BeThere.org - Online Mental Health Supports | Toronto |
| John Howard Society of Peel, Halton and Dufferin, Community Services | Milton |
| Joseph Brant Hospital, Burlington, Mental Health Services | Burlington |
| Kids Help Phone, Crisis Text Line | Toronto |
| Kids Help Phone, Group Wellness Programs | Toronto |
| Kids Help Phone | Toronto |
| Kinark Child and Family Services, Syl Apps Youth Centre | Oakville |
| Mental Health Mutual-Aid Hub Canada, Mandarin Hotline and Mental Health Support | Toronto |
| Métis Nation of Ontario, Brampton | Brampton |
| Millhouse Resthome, Halton Hills, Group Home | Halton Hills |
| Millhouse Resthome, Acton, Group Home | Acton |
| Milton Life Care, Addiction Services | Milton |
| Mood Disorders Association of Ontario, Peer Supports and Services | Toronto |
| Nar-Anon Family Groups, Halton Meetings | Halton Region |
| Narcotics Anonymous | Halton Region |
| 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 Horizons Treatment Centre | New Credit |
| Noojimo Health, Virtual Mental Wellness Clinic | Ontario |
| One Stop Talk | Ontario |
| Ontario Addiction Treatment Centres, Methadone Maintenance Treatment | Oakville |
| Ontario Federation of Agriculture, Guardian Network (The) - Suicide Prevention Program | Ontario |
| Ontario. Ministry of Children, Community and Social Services, Burlington - Itabashi Way, Ontario Disability Support Program | Burlington |
| Ontario. Ministry of Children, Community and Social Services, Burlington - Fairview St, Youth Justice Services | Burlington |
| Ontario. Ministry of Health, Smoking Cessation Program | Toronto Downtown Central |
| Ontario. Ministry of Health, Find a naloxone kit | Ontario |
| Outward Bound Canada, Charitable Programs | Toronto |
| Overeaters Anonymous, Oakville / Burlington Area Meetings | Burlington |
| Parkside Rest Home, Group home | Halton Hills |
| PCHS, PCHS Brampton | Brampton |
| PCHS, PCHS Mississauga | Mississauga |
| Phoenix Medical Centre, Addictions and Recovery Clinic | Clarkson |
| Postpartum Support International, Postpartum Mood Disorder Services | Toronto |
| Re:Soul Youth Centre, Milton | Milton |
| Re-Imagine Ontario, Community Supports for Vulnerable Youth and Seniors | Oakville |
| Renascent, Toronto - Wright Centre | Toronto |
| Rise, Toronto | Toronto |
| ROCK, Burlington - Head Office, Community Mental Health Services | Burlington |
| ROCK, Burlington - Aberdeen House, Live-in Treatment | Burlington |
| ROCK, Access and System Navigation | Halton Region |
| ROCK, Danielle's Place - Eating Disorder Support and Resource Centre | Burlington |
| ROCK, Halton Coordinated Service Planning | Burlington |
| ROCK, Group Based Mental Health Services | Halton Region |
| ROCK, Individualized Mental Health Services | Halton Region |
| Salvation Army Ontario Division, Crisis / Hope Line | Hamilton |
| Sheridan College, Sheridan Student Union - Student Services | Oakville |
| St Christopher's Anglican Church, Open Doors @ St Christophers | Burlington |
| St. Joseph's Healthcare Hamilton, Men's Addiction Service Hamilton (MASH) | Hamilton |
| St. Joseph's Healthcare Hamilton, Womankind Addiction Service | Hamilton |
| Stride, Employment Peer Mentor Program | Halton Region |
| Stride, Supported Employment | Halton Region |
| Summit Housing & Outreach Programs, Oakville, Supportive Housing & Outreach Programs | Oakville |
| Summit Housing & Outreach Programs, Case Management Supports | Halton Region |
| Summit Housing & Outreach Programs, Housing & Homelessness Supports | Halton Region |
| Support House, Housing Services | Oakville |
| Support House, Community Health Centre Mobile Health Team | Oakville |
| Support House, Peer Services - Centre for Innovation in Peer Support | Oakville |
| Support House, Supportive Housing | Oakville |
| Talk4Healing, Telephone Helpline and On-line Chat Counselling Services | Thunder Bay |
| Talking for Change | Ontario |
| Trans Lifeline | |
| Unsinkable, Mental Health Support and Awareness | Toronto |
| Unsinkable, Unsinkable Youth | Oakville |
| We Matter, Indigenous Youth Support | British Columbia |
| Wellbeings Medical Centre for Innovation & Excellence | Burlington |
| Wesley, Hoarding Support Services – Halton | Halton Region |
| William Osler Health System, Peel Memorial Centre for Integrated Health and Wellness | Brampton |
| Women's Centre of Halton (The), Women's Support Services | Oakville |
| Women's Centre of Halton (The), One-on-One Support Services | Oakville |
| Women's College Hospital, Substance Use Service | Toronto |
| Women's College Hospital, Reproductive Life Stages Program | Toronto |
| Woodview Mental Health and Autism Services | Burlington |
| Woodview Mental Health and Autism Services, Woodview Learning Centre | Burlington |
| YMCA of Hamilton / Burlington / Brantford, Halton Region Youth in Transition Worker Program | Burlington |
| YMCA of Hamilton / Burlington / Brantford, Burlington - Ron Edwards Family YMCA, Youth Wellness Series | Burlington |
| YMCA of Hamilton / Burlington / Brantford, Multiple Locations, Be Wise | Halton Region |
| YMCA of Oakville, Positive Health Management Programs | Oakville |
| YMCA of Oakville, Youth Mental Wellness Programs | Oakville |
| York House Acton Care Facility | Acton |
