| Advocacy Centre for the Elderly | Toronto |
| Alienated Grandparents Anonymous Ottawa | Ottawa |
| Burlington. Office of the City Clerk, Burlington Seniors Advisory Committee | Burlington |
| Canada. Veterans Affairs Canada [Toronto area], Bureau of Pensions Advocates, Scarborough Service Centre | Toronto |
| Canada. Veterans Affairs Canada [Toronto area], Veterans Ombudsman | Toronto |
| Canadian Alliance of British Pensioners | Toronto |
| Canadian Anti-Fraud Centre | North Bay |
| Canadian Centre for Housing Rights, Eviction Prevention and Tenant Support | Toronto |
| Canadian Coalition for Seniors' Mental Health | Markham |
| Canadian Snowbird Association | Toronto |
| Cangrands National Kinship Support, Mailing Address | Saskatchewan |
| CARP, Halton Chapter | Burlington |
| Concerned Friends of Ontario Citizens in Care Facilities | Toronto Downtown North |
| Elder Abuse Prevention Ontario | Etobicoke Central |
| Halton. Social and Community Services, Older Adult Advisory Committee | Oakville |
| Health Services Appeal and Review Board | Toronto Downtown Central |
| Links2Care, Oakville, Care at Home for Seniors and Adults with Disabilities | Oakville |
| Métis Nation of Ontario, Toronto Regional Office | Toronto Downtown East |
| National Pensioners Federation | Mississauga |
| Oakville. Recreation and Culture, Sir John Colborne Recreation Centre for Seniors, Seniors Working Action Group | Oakville |
| Older Women's Network | Toronto |
| OmbudService for Life and Health Insurance, Online Services | Toronto |
| Ombudsman for Banking Services and Investments | Toronto |
| Ombudsman Ontario | Toronto |
| Ontario Ministry of Municipal Affairs and Housing, Landlord and Tenant Board Southern Office, Ontario Landlord and Tenant Board | Hamilton |
| Ontario Society of Senior Citizens' Organizations | Toronto |
| Ontario. Ministry of Long-Term Care, Reports on Long-Term Care Homes | Toronto Downtown Central |
| Ontario. Ministry of the Attorney General, Hamilton Services, Office of the Public Guardian and Trustee | Hamilton |
| Ontario. Ministry of the Attorney General. Office of the Public Guardian and Trustee | Toronto |
| Patient Ombudsman | Toronto Downtown Central |
| Psychiatric Patient Advocate Office, Toronto Office | Toronto |
| Retired Teachers of Ontario, Halton District 15 - No Physical Address | Halton Region |
| Retirement Homes Regulatory Authority | Toronto Downtown Central |
| United Senior Citizens of Ontario | Toronto |
