| Advocacy Centre for Tenants Ontario | Toronto |
| Advocacy Centre for the Elderly | Toronto |
| Alzheimer Society Huron Perth, Stratford Office | Stratford |
| ARCH Disability Law Centre | Toronto |
| Automobile Protection Association | Toronto |
| Barrie Native Friendship Centre, Barrie - 175 Bayfield St, Indigenous Healing and Wellness | Barrie |
| Beaver Valley Outreach, Thornbury - King St, Seniors' Centre Without Walls | Blue Mountains |
| Canada. Members of Parliament - Central East Ontario, Barrie South-Innisfil Riding - Barrie Office, Federal Services to Constituencies | Barrie |
| Canada. Members of Parliament - Central East Ontario, Barrie-Springwater-Oro Medonte Riding - Barrie Office, Federal Services to Constituencies | Barrie |
| Canada. Members of Parliament - Central East Ontario, Bruce-Grey-Owen Sound Riding - Owen Sound Office, Federal Services to Constituencies | Owen Sound |
| Canada. Members of Parliament - Central East Ontario, Huron-Bruce Riding - Goderich Office, Federal Services to Constituencies - Huron-Bruce Riding - Ben Lobb MP | Goderich |
| Canada. Members of Parliament - Central East Ontario, Perth Wellington Riding - Stratford Office, Federal Services to Constituencies - Perth-Wellington Riding - John Nater MP | Stratford |
| Canada. Members of Parliament - Dufferin-Caledon, Dufferin-Caledon Electoral District - Orangeville Office, Federal Services to Constituencies | Orangeville |
| Canadian Centre for Housing Rights, Eviction Prevention and Tenant Services | Toronto |
| Canadian Mental Health Association Haliburton, Kawartha, Pine Ridge, Peterborough - George St N, Administration Office | Peterborough |
| Canadian Snowbird Association | Toronto |
| Catulpa Community Support Services, Barrie Office | Barrie |
| Chinese and Southeast Asian Legal Clinic | Toronto |
| Community Living Association for South Simcoe, Alliston | New Tecumseth |
| Deaf Access Simcoe Muskoka, Barrie Central Office, Community Support Services | Barrie |
| Dnaagdawenmag Binnoojiiyag Child and Family Services, Barrie | Barrie |
| Dnaagdawenmag Binnoojiiyag Child and Family Services, Hiawatha - Admin Office | Hiawatha First Nation |
| Dying With Dignity Canada | Toronto |
| Elizabeth Fry Society of Peterborough, Reid St - Peterborough, Community Intervention Services | Peterborough |
| Georgian Bay Native Friendship Centre, Court Worker Programs and Services | Midland |
| Georgian Bay Native Friendship Centre, Reaching Home Program | Midland |
| HIV & AIDS Legal Clinic Ontario (HALCO) | Toronto |
| Huronia Transition Homes, La Maison Rosewood Shelter | Midland |
| Income Security Advocacy Centre | Toronto |
| Knollcrest Lodge, Community Outreach Services | Perth East |
| Landlord's Self Help Centre | Toronto |
| MADD Canada, Mailing Address, Barrie Simcoe Chapter | Barrie |
| National Council of Jewish Women of Canada - Simcoe County, Mailing Address | Innisfil |
| Nogojiwanong Friendship Centre, Indigenous Community Wellness | Peterborough |
| On My List, Mobile Service | Clearview (Simcoe County) |
| Ontario Federation for Cerebral Palsy | Etobicoke North |
| Ontario. Office of the Worker Adviser, Scarborough - Milner Ave, Ontario. Office of the Worker Adviser, Scarborough Office | Toronto |
| Perth County Federation of Agriculture, Mailing Address | Ontario |
| Prisoners HIV / AIDS Support Action Network, Toronto, Prisoners HIV/AIDS Support Action Network | Toronto |
| Salvation Army, Midland - Dominion Ave, Community Church | Midland |
| Service Coordination for Children and Youth, Peterborough | Peterborough |
| Simcoe Community Access Network Development Corporation | Barrie |
| Spinal Cord Injury Ontario [Central East], Barrie, Barrie Regional Office | Barrie |
| The Salvation Army, Goderich/Clinton, Clinton - 32 Albert St, Community and Family Services, Clinton | Central Huron |
| The Salvation Army, Goderich/Clinton, Goderich - 303 Suncoast Dr E, Community and Family Services, Goderich | Goderich |
| Town of St Marys Home Support Services | St Marys |
| Workers Health and Safety Legal Clinic | Toronto |
| YWCA Peterborough Haliburton, Peterborough, START VAW Support Hub | Peterborough |