| | Organization Name(s) | Located In |
 | AboutFace | Toronto (City of) |
| | Alcohol Babies Anonymous | St Catharines |
| | Alcoholics Anonymous (AA) | St Catharines |
 | Alzheimer Society of Niagara Region | St Catharines |
 | Brain Injury Association of Niagara | St Catharines |
| | Brain Tumour Foundation of Canada, Niagara Adult Brain Tumour Support Group | Thorold |
| | Canadian Parents Without Partners Incorporated, New Dawn - Hamilton Chapter 73 | Hamilton |
| | Chronic Pain Association of Canada, Niagara Chapter Support Group | St Catharines |
 | Consumer/Survivor Initiative of Niagara | Welland |
 | Epilepsy Niagara | Niagara Falls |
 | Fathers Resources International, Hamilton Chapter | Hamilton Mountain West |
| | Fetal Alcohol Support Group of Niagara | St Catharines |
 | Grace Gospel Church, DivorceCare and DivorceCare for Kids | Niagara Falls |
 | Grimsby Life Centre | Grimsby |
 | Hospice Niagara, The Stabler Centre, Bereavement Support Group | St Catharines |
| | Kairos Outside, Women's Retreat Program | St Catharines |
 | Leukemia and Lymphoma Society of Canada, Toronto Chapter | Toronto (City of) |
 | Little People of Ontario | Toronto |
 | London Military Family Resource Centre, Hamilton/Cambridge Outreach Office | Hamilton Central |
| | MADD, Niagara Region Chapter | St Catharines |
 | March of Dimes Canada, Stroke Recovery Canada, Survivors of Stroke West Niagara | Beamsville |
 | March of Dimes Canada, Warmline for Stroke Recovery Canada & Post-Polio Canada | Toronto |
| | Mood Disorder Support Group of the Niagara Region | St Catharines |
 | Multiple Sclerosis Society of Canada, Ontario Division, Niagara Peninsula Chapter of Hope | St Catharines |
| | Newcomers Club of Niagara-on-the-Lake, The | Niagara-on-the-Lake |
 | Niagara Health System, Port Colborne Site, New Port Centre | Port Colborne |
 | Niagara Injured Workers Centre | St Catharines |
 | Niagara Region Sexual Assault Centre (CARSA Inc), Hope for Men | St Catharines |
 | Niagara. Region Public Health, Healthy Babies/Healthy Children, MOMS Post Partum Depression Support Group | Thorold |
| | Nicotine Anonymous | Niagara Falls |
 | Obsessive-Compulsive Disorder Self Help Group | St Catharines |
| | Parents for Childrens Mental Health, Niagara Chapter | St Catharines |
| | Parkinson Niagara | Niagara Region |
 | Parkinson Society Central & Northern Ontario, Niagara Chapter | Toronto (City of) |
 | Quest Community Health Centre | St Catharines |
 | Quest Community Health Centre, Rainbow Youth Niagara | St Catharines |
 | Salvation Army Community and Family Services, Niagara Falls | Niagara Falls |
| | S-Anon International Family Group, Niagara Chapter | Niagara Region |
 | Self-Help Resource Centre, The | Toronto (City of) |
| | Sex and Love Addicts Anonymous | St Catharines |
 | Survivor Support Programme | Toronto (City of) |
| | Survivors of Stroke Niagara (SOS), Niagara Chapters | Niagara Region |
| | Take Charge!, Self-Management Strategy | Hamilton Mountain West |
| | Trigeminal Neuralgia Association, Niagara Support Group | St Catharines |
 | Vineland United Mennonite Church | Vineland |
 | Westview Christian Fellowship, Women 4 Women | St Catharines |