| 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, Youth Programs | Halton Region |
| Canadian Centre on Substance Use and Addiction | Ottawa |
| Canadian Mental Health Association, Milton and Halton Hills, Mental Health Services | Milton |
| Centre for Addiction and Mental Health, Addiction Medicine Services and Specialized Clinics | Toronto |
| Centre for Addiction and Mental Health, Shkaabe Makwa Centre for First Nations, Inuit and Métis Wellness | Toronto |
| Drug Free Kids Canada, Parent Support Hub | Ottawa |
| Georgetown Pharmacy, Pharmacy Services | Halton Hills |
| Guardian Mountainside Pharmacy, Pharmacy Services | Burlington |
| Halton & Mississauga RAAM Clinic, Oakville - Head Office, Rapid Access Addiction Medicine (RAAM) | Oakville |
| Halton & Mississauga RAAM Clinic, Acton, Addiction Medicine Clinic | Halton Hills |
| 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 Healthcare, Oakville Trafalgar Memorial Hospital, Mental Health - Integrated Addiction Medicine Clinic | Oakville |
| Halton. Halton Region Public Health, Exchange Works - Needle Exchange and Naloxone Distribution | Halton Region |
| Homewood Health Centre | Guelph |
| Hope Place Centres, Men's Bed-Based Addiction Treatment Program | Hornby |
| 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 |
| IDA Burlington Drug Mart, Pharmacy Services | Burlington |
| IDA Maple Pharmacy, Pharmacy Services | Burlington |
| IDA Pharmacy, Oakville - Ford Dr (Ford Dr Pharmacy), Pharmacy Services | Oakville |
| IDA Pharmacy, Oakville - Burnhamthorpe Rd E (Sav-On Pharmacy), Pharmacy Services | Oakville |
| IDA St Mary Pharmacy, Pharmacy Services | Burlington |
| Jasmin Pharmacy, Pharmacy Services | Burlington |
| Lifecare Rx Pharmacy & Specialty Compounding Centre | Oakville |
| Loblaw Pharmacy, Milton, Pharmacy Services | Milton |
| Loblaw Pharmacy, Oakville - Oak Walk Dr, Pharmacy Services | Oakville |
| Loblaw Pharmacy, Oakville - Dundas St W (Fortinos), Pharmacy Services | Oakville |
| Medicine Shoppe (The), Pharmacy Services | Burlington |
| Métis Nation of Ontario, Brampton | Brampton |
| Milton Life Care, Addiction Services | Milton |
| Native Horizons Treatment Centre | New Credit |
| Ontario Addiction Treatment Centres, Methadone Maintenance Treatment | Oakville |
| PCHS, PCHS Brampton | Brampton |
| PCHS, PCHS Mississauga | Mississauga |
| PharmaEssence Drug Mart, Pharmacy Services | Halton Hills |
| Pharmasave, Burlington - Thomas Alton Blvd, Pharmacy Services | Burlington |
| Pharmasave, Burlington - Martha St, Pharmacy Services | Burlington |
| Phoenix Medical Centre, Addictions and Recovery Clinic | Clarkson |
| Plainsview Pharmacy, Pharmacy Services | Burlington |
| Remedy's Rx New St Pharmacy, Pharmacy Services | Burlington |
| Renascent, Toronto - Wright Centre | Toronto |
| Rexall Pharma Plus, Burlington - Brant St, Pharmacy Services | Burlington |
| Rexall Pharma Plus, Burlington - Guelph Line, Pharmacy Services | Burlington |
| Rexall Pharma Plus, Burlington - New St, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - 3023 New St, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - Plains Rd E, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - Brant St, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - Headon Rd, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - Upper Middle Rd, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - 4524 New St, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - 3035 Appleby Line, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - 2080 Appleby Line, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Burlington - 3051 Walkers Line, Pharmacy Services | Burlington |
| Shoppers Drug Mart, Acton, Pharmacy Services | Halton Hills |
| Shoppers Drug Mart, Georgetown - Guelph St, Pharmacy Services | Halton Hills |
| Shoppers Drug Mart, Georgetown - Mountainview Rd S, Pharmacy Services | Halton Hills |
| Shoppers Drug Mart, Milton - Derry Rd W, Pharmacy Services | Milton |
| Shoppers Drug Mart, Milton - Kennedy Circle, Pharmacy Services | Milton |
| Shoppers Drug Mart, Milton - Main St E, Pharmacy Services | Milton |
| Shoppers Drug Mart, Milton - Nipissing Rd, Pharmacy Services | Milton |
| Shoppers Drug Mart, Oakville - Cornwall Rd (Olde Oakville Marketplace), Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - Lakeshore Rd W, Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - Leighland Ave, Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - Third Line, Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - Dundas St W, Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - Kerr St, Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - Prince Michael Dr, Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - 1515 Rebecca St, Pharmacy Services | Oakville |
| Shoppers Drug Mart, Oakville - 3535 Rebecca St, Pharmacy Services | Oakville |
| South Asian Canadians Health and Social Services, SACHSS Mental Health Services | Brampton |
| St. Joseph's Healthcare Hamilton, Men's Addiction Service Hamilton (MASH) | Hamilton |
| St. Joseph's Healthcare Hamilton, Womankind Addiction Service | Hamilton |
| Stonehenge Therapeutic Community | Guelph |
| Trillium Health Partners, Credit Valley Hospital | Mississauga |
| Wellbeings Medical Centre for Innovation & Excellence | Burlington |
| William Osler Health System, Peel Memorial Centre for Integrated Health and Wellness | Brampton |
| Women's College Hospital, Substance Use Service | Toronto |
