| | Organization Name(s) | Located In |
 | AIDS Committee of Windsor, Harm Reduction Services | Windsor Central |
 | Al-anon and Alateen, Tilbury | Tilbury |
 | Al-Anon Information Services | Sarnia |
| | Al-Anon/Alateen Family Groups, Windsor and Essex County | Tecumseh (Town of) |
 | Al-Anon/Alateen Family Groups - Ridgetown, District 9, Chatham-Kent | Ridgetown |
 | Alcoholics Anonymous, Blenheim | Blenheim |
| | Alcoholics Anonymous, Chatham-Kent District 15, Area 86 | Chatham |
| | Alcoholics Anonymous, Windsor-Essex District 16 | Windsor |
 | Believe Life Transitions | Windsor |
 | Brentwood Recovery Home | Windsor Central |
 | Brentwood Recovery Home, Junior Youth Group | Windsor Central |
 | Brentwood Recovery Home, Men's Program | Windsor Central |
 | Brentwood Recovery Home, Women's Program | Windsor Central |
 | Can-Am Indian Friendship Centre of Windsor Inc, Aboriginal Alcohol and Drug Worker | Windsor East |
 | Can-Am Indian Friendship Centre of Windsor Inc, Urban Aborignal Healthy Living Program | Windsor East |
 | Chatham-Kent Mental Health and Addictions Program, C-K MHAP | Chatham |
| | ConnexOntario, Drug and Alcohol Registry of Treatment | London |
| | ConnexOntario, Ontario Problem Gambling Hotline | London |
 | Crossroads, Centre for Personal Empowerment | Windsor Central |
 | Erie St Clair Clinic, Addictions Centre | Windsor East |
| | Gamblers Anonymous, Windsor-Essex County | Windsor |
 | Goyeau Street Clinic | Windsor |
 | House of Sophrosyne | Windsor West |
 | House of Sophrosyne, HEROS program | Windsor West |
| | Integrity Drug Screening and Analysis Inc | Windsor East |
 | John Howard Society of Windsor-Essex County, Juvenile Drug, Alcohol and Self Management Group | Windsor Central |
 | Lambton County Addiction Services | Sarnia |
| | Narcotics Anonymous | Chatham |
 | Nimkee Nupigawagan Healing Centre | Muncey |
 | On Your Own - a Youth Survival Guide, A Directory of Services for Youth | Chatham |
 | Ontario Addiction Treatment Centres, Windsor Clinic | Windsor West |
| | Overeaters Anonymous | Harrow |
 | Renew Medical Clinics, Leamington Clinic | Leamington |
 | Salvation Army (The), Community and Rehabilitation Centre, Day Program for Addictions, Windsor | Windsor Central |
 | Salvation Army (The), Community and Rehabilitation Centre, Men's Addiction Support and Treatment, Windsor | Windsor Central |
 | St Leonard's House Windsor | Windsor Central |
 | Windsor Essex Community Health Centre, Teen Health | Windsor Central |
 | Windsor Essex Community Health Centre, Teen Health, Adolescent Substance Abuse Program | Windsor Central |
 | Walpole Island Community Service Program, Bkejwonong First Nation | Walpole Island |
 | Walpole Island First Nation | Wallaceburg |
 | Walpole Island Primary Chemical Prevention Program, Wallaceburg | Walpole Island |
 | Westover Treatment Centre, Thamesville | Thamesville |
 | Windsor-Essex County Health Unit, Essex Satellite Office | Essex (Town of) |
 | Windsor Regional Hospital, Ottawa St Site, Family Mental Health and Addictions Services, Problem Gambling Services | Windsor Central |
 | Windsor Regional Hospital, Tafour Campus, Family Mental Health and Addictions, Concurrent Disorders Treatment Program | Windsor West |
 | Windsor Regional Hospital, Tafour Campus, Family Mental Health and Addictions, Remedial Measures - Back on Track | Windsor West |
 | Windsor Regional Hospital, Tayfour Campus, Family Mental Health & Addictions Services, Windsor Addictions Assessment & Outpatient Services | Windsor West |
 | Windsor Regional Hospital, Western Campus, Family Mental Health & Addictions Services, Withdrawal Management Services | Windsor West |
| | Women for Sobriety | Windsor |
 | YMCA Learning and Career Centre, Youth Gambling Awareness | Sarnia |
 | YMCA of Windsor and Essex County, Youth Gambling Awareness Program | Windsor Central |