| | Organization Name(s) | Located In |
 | AboutFace | Toronto (City of) |
 | AIDS Niagara | St Catharines |
| | Al-Anon Family Groups | Niagara Region |
| | Alcohol Babies Anonymous | St Catharines |
| | Alcoholics Anonymous (AA) | St Catharines |
| | Association of Parent Support Groups in Ontario Inc | Toronto (City of) |
 | Autism Ontario - Niagara Chapter | St Catharines |
 | Bereaved Families of Ontario, Hamilton/Burlington | Hamilton |
| | Brain Tumour Foundation of Canada, Niagara Adult Brain Tumour Support Group | Thorold |
 | Calvary Church, Wednesday Night Live | St Catharines |
| | Canadian Authors Association, Niagara Branch | St Catharines |
 | Canadian Calorie Counters, Niagara Falls | Niagara Falls |
 | Canadian Cancer Society, Niagara Unit | St Catharines |
 | Canadian Cancer Society, Niagara Unit, Support Group | St Catharines |
| | Canadian Celiac Association, St Catharines Chapter | St Catharines |
 | Canadian Centre for Victims of Torture | Toronto (City of) |
 | Canadian Foundation for the Study of Infant Deaths | St Catharines |
 | Canadian Mental Health Association Niagara Branch, Administration | St Catharines |
 | Canadian Mental Health Association Niagara Branch, Fort Erie Satellite Office | Fort Erie |
 | Canadian Mental Health Association Niagara Branch, Resource Centre, Niagara Falls | Niagara Falls |
| | Canadian Parents Without Partners Incorporated, New Dawn - Hamilton Chapter 73 | Hamilton |
| | Caring Friends | Niagara Falls |
| | Chronic Pain Association of Canada, Niagara Chapter Support Group | St Catharines |
| | Compassionate Friends of Niagara, Niagara Region | St Catharines |
 | Consumer/Survivor Initiative of Niagara | Welland |
| | Daval Hospice | Niagara Falls |
| | Down Syndrome Caring Parents, Niagara | Niagara Falls |
 | Early Childhood Community Development Centre | Thorold |
 | Fathers Resources International, Hamilton Chapter | Hamilton Mountain West |
| | Fetal Alcohol Support Group of Niagara | St Catharines |
| | Gamanon | Niagara Falls |
| | Gamblers Anonymous, New Hope | Niagara Falls |
 | George Darte Funeral Home, Grief Recovery Outreach Program | St Catharines |
| | Grand - Parenting Again Canada | St Catharines |
 | Heart and Stroke Foundation of Ontario | St Catharines |
| | HOPE (Helping Others Parent Effectively), St Catharines | St Catharines |
 | Hospice Niagara, The Stabler Centre | St Catharines |
| | Huntington Society of Canada, Niagara Chapter | Niagara Region |
| | I M CONFIDENT NIAGARA CANADA | Niagara Region |
| | In Search of Justice | Vaughan |
| | Irlen Syndrome | St Catharines |
 | Landlord's Self-Help Centre | Toronto (City of) |
 | Learning Disabilities Association of Niagara Region | St Catharines |
| | Leverage U | St Catharines |
| | Loving Outreach Suicide Support Group | St Catharines |
 | Lupus Foundation of Ontario | Ridgeway |
| | MADD, Niagara Region Chapter | St Catharines |
| | Mood Disorder Support Group of the Niagara Region | St Catharines |
 | Morse & Son Funeral Home & Morgan Funeral Home, Morse and Son Family Care Centre, Bereavement Support Program | Niagara Falls |
| | Narcotics Anonymous | St Catharines |
 | New Voice Club of the Niagara Region | St Catharines |
| | Niagara Amputee Association | St Catharines |
| | Niagara Caregiver Support Network | St Catharines |
 | Niagara Coping Centre, The | Lincoln |
 | Niagara Health System, Port Colborne Site, Niagara Eating Disorder Outpatient Program | Port Colborne |
| | Niagara Ostomy Association | St Catharines |
| | Niagara Peninsula Cerebral Palsy Association | Niagara Falls |
| | Niagara Post Polio Chapter, Ontario March of Dimes | Thorold |
| | Niagara Pride Support Services | Thorold |
| | Niagara Region Parents of Multiple Births Association | Niagara Region |
| | Niagara South Home Child Care Network | Welland |
| | Nicotine Anonymous | Niagara Falls |
 | Obsessive-Compulsive Disorder Self Help Group | St Catharines |
| | Offender Reintegration and Assistance Program | St Catharines |
 | Ontario Lung Association (The), Hamilton Branch, Breathworks Program | Hamilton East |
| | Pathways to Peace, (Canada), Niagara | St Catharines |
 | PFLAG Canada, Niagara Chapter | St Catharines |
 | Salvation Army Community and Family Services, Niagara Falls | Niagara Falls |
| | S-Anon International Family Group, Niagara Chapter | Niagara Region |
 | Schizophrenia Society of Ontario, Niagara Chapter | St Catharines |
 | Self-Help Resource Centre, The | Toronto (City of) |
| | Sex and Love Addicts Anonymous | St Catharines |
 | South Niagara Life Centre Ministries | Fort Erie |
| | Spina Bifida and Hydrocephalus Association of Ontario, Support & Information | Toronto (City of) |
| | Survivors of Stroke Niagara (SOS), Niagara Chapters | Niagara Region |
| | Tinnitus Association of Canada | Toronto (City of) |
| | TOPS (Take Off Pounds Sensibly) | Niagara Region |
 | Vineland United Mennonite Church | Vineland |
 | Westview Christian Fellowship, Women 4 Women | St Catharines |