| 1door | Barrie |
| A & B Clinics, Barrie, Virtual Addictions Clinic | Barrie |
| Addiction Services Central Ontario, Stevenson Memorial Hospital - Alliston, Rapid Access Addiction Medicine Clinic, South Simcoe | New Tecumseth |
| Back on Track - Ontario's Remedial Measures Program for Impaired Drivers, Toronto - Mailing Address | Toronto |
| Barrie and Community Family Health Team, Barrie Primary Care Campus, STOP - Smoking Cessation Program | Barrie |
| Barrie Area Native Advisory Circle, Barrie - 125 Bell Farm Rd, Suite 200, Mamaway Wiidokdaadwin Clinic | Barrie |
| Barrie Area Native Advisory Circle, Orillia, Mamaway Wiidokdaadwin Clinic | Orillia |
| Barrie Native Friendship Centre, Barrie - 175 Bayfield St, Urban Aboriginal Healthy Living | Barrie |
| Bradford Medical Centre | Bradford West Gwillimbury |
| Brad's Place Addiction Treatment Of Southern Georgian Bay | Collingwood |
| Brightshores Health System, Owen Sound - 9th Ave, Rapid Access Addiction Medicine Clinic | Owen Sound |
| Busby Centre, Barrie - 88 Mulcaster St, Detour Outreach Program | Barrie |
| Busby Centre, Barrie - 88 Mulcaster St, Drop In Services | Barrie |
| Canadian Cancer Society, Mailing Address only, Cancer Information and Transportation Service | |
| Canadian Mental Health Association. Simcoe County Branch, Barrie - 128 Anne St S, Addiction Services | Barrie |
| Canadian Mental Health Association. Simcoe County Branch, Youth Mental Health and Addiction Services | 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 |
| Centre de santé communautaire CHIGAMIK Community Health Centre, Midland - Bayshore Dr | Midland |
| Centre de santé communautaire CHIGAMIK Community Health Centre, Quit Cafe - Nicotine Replacement Program, Midland - Bayshore Dr | Midland |
| Charles DiGaudio Counselling Services | Collingwood |
| CONTACT Community Services, Exchange WORKS, Alliston - 39 Victoria St E | New Tecumseth |
| Delta Health Clinics, Barrie - Grove St E, Opioid Addiction / Dependence Treatment | Barrie |
| Delta Health Clinics, Barrie - Leacock Dr, Opioid Addiction / Dependence Treatment | Barrie |
| Delta Health Clinics, Barrie - Wellington St W, Opioid Addiction / Dependence Treatment | Barrie |
| EHN Canada, Gateway Recovery | Peterborough |
| Enaahtig Healing Lodge and Learning Centre, Main Office - Victoria Harbour | Tay |
| Essa Road Medical Clinic, Barrie, Methadone Clinic | Barrie |
| Georgian Bay Clinic (The) | Midland |
| Georgian Bay Family Health Team | Collingwood |
| Georgian Bay Native Friendship Centre, Urban Aboriginal Healthy Living / Healthy Kids | Midland |
| Georgian Bay Native Friendship Centre, Indigenous Alcohol and Drug Worker Program | Midland |
| Greenestone Centre for Recovery | Muskoka Lakes Township |
| Hopewood Clinic, Angus, Angus Rapid Access Addiction Medicine (RAAM) Clinic | Essa |
| Hopewood Clinic, Wasaga Beach, Wasaga Beach Rapid Access Addiction Medicine (RAAM) Clinic | Wasaga Beach |
| Hospital for Sick Children, Adolescent Medicine | Toronto |
| Lakeridge Health Oshawa, Pinewood Centre, Whitby - Cochrane St, Women's Residential Treatment Program, Pinewood Centre, Whitby - Cochrane St | Whitby |
| LifeLabs, Barrie - Bayview Dr, Medical Laboratory Services and ECG Testing | Barrie |
| LifeLabs, Barrie - Huronia Rd, Medical Laboratory Services and ECG Testing | Barrie |
| LifeLabs, Barrie - Lakeside Terrace, Medical Laboratory Services | Barrie |
| LifeLabs, Barrie - Quarry Ridge Rd, Medical Laboratory Services and ECG Testing | Barrie |
| LifeLabs, Barrie - Wellington St W, Medical Laboratory Services and ECG Testing | Barrie |
| LifeLabs, Innisfil, Medical Laboratory Services | Innisfil |
| Murray's Windermere Gardens | Barrie |
| New Life Clinic, Barrie, Methadone / Suboxone Addiction Clinic | Barrie |
| North Simcoe Youth Wellness Hub, North Simcoe | Midland |
| Ontario Addiction Treatment Centres, Alliston Office | New Tecumseth |
| Ontario Addiction Treatment Centres, Collingwood Clinic | Collingwood |
| Ontario. Ministry of Health, Smoking Cessation Program | Toronto Downtown Central |
| Pine River Institute | Shelburne |
| Prisoners HIV / AIDS Support Action Network, Prisoners HIV/AIDS Support Action Network | Toronto |
| ProHealth Pharmacy, Barrie - Mapleton Ave | Barrie |
| Rainbow Pharmasave, Angus | Essa |
| Rama Police Service | Chippewas of Rama First Nation |
| Reflection Centre, Barrie | Barrie |
| Road to Recovery Addiction Clinic, Barrie - Anne St S, Addiction Clinic | Barrie |
| Road to Recovery Addiction Clinic, Barrie - Dunlop St W, Addiction Clinic | Barrie |
| Road to Recovery Addiction Clinic, Bradford, Addiction Clinic | Bradford West Gwillimbury |
| Royal Victoria Regional Health Centre, Barrie - 70 Wellington St W - Lower Level, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 70 Wellington St W - Upper Level, Withdrawal Management Services | Barrie |
| Royal Victoria Regional Health Centre, Midland - Bayshore Dr, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Midland |
| Royal Victoria Regional Health Centre, Orillia Common Roof - Front St S, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Orillia |
| Royal Victoria Regional Health Centre, Wasaga Beach, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Wasaga Beach |
| S.H.I.F.T, Daytime Drop-In Centre Program | New Tecumseth |
| S.H.I.F.T, Mobile Outreach Program | New Tecumseth |
| Salvation Army (The), Hope Acres, Treatment Centre | Adjala-Tosorontio |
| Seven South Street Treatment Centre | Orillia |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Community and Family Health Department | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Environmental Health Department | Barrie |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Community and Family Health Department | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Environmental Health Department | Collingwood |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Community and Family Health Department | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Environmental Health Department | Innisfil |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Community and Family Health Department | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Environmental Health Department | Midland |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Community and Family Health Department | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Environmental Health Department | Orillia |
| Simcoe Muskoka Opioid Strategy, Online / Web Service | Barrie |
| Smith Psychological, Counselling / Psychotherapy and Psychological Assessment Services | Barrie |
| Society of Saint Vincent de Paul, VincenPaul Community Homes (VP Homes) | Barrie |
| South Georgian Bay Community Health Centre, Needle Exchange Program, Wasaga Beach | Wasaga Beach |
| Towards Recovery Clinic, Barrie, Towards Recovery Clinic, Barrie | Barrie |
| Waypoint Centre for Mental Health Care, Georgianwood Program for Concurrent Disorders, Penetanguishene - 500 Church St - Toanche Bldg | Penetanguishene |
| YMCA of Simcoe/Muskoka, Barrie - Bayfield St, Youth in Transition Worker Program | Barrie |
| Your Support Services Network, Aurora - Head Office | |