| Association for Bright Children of Ontario, Toronto - No Physical Address, Toronto Chapter | Caledon (Town of) |
| Candlelighters Simcoe - Parents of Children with Cancer, Barrie - Mailing Address | Barrie |
| Centre de santé communautaire CHIGAMIK Community Health Centre, Mama Tribe, Midland - Bayshore Dr | Midland |
| Community Living Association for South Simcoe, Alliston, Parent / Advocate Support Group | New Tecumseth |
| Keystone Child, Youth and Family Services, Keystone Prevention Programs, Owen Sound - 3rd Ave W | Owen Sound |
| March of Dimes Canada, Barrie - Bryne Dr, Brain Injury Services - Outreach Activity Groups in Simcoe County | Barrie |
| Multiple Births Canada | Richmond Hill |
| New Path Youth and Family Services of Simcoe County, Barrie Head Office, Parenting Support Programs | Barrie |
| Northumberland Child Development Centre, Northumberland Bridges Program, Port Hope | Port Hope (Municipality of) |
| Northumberland Child Development Centre, Port Hope, Administration | Port Hope (Municipality of) |
| Parents for Children's Mental Health, Stratford Chapter | Stratford |
| Simcoe Muskoka Family Connexions, Bracebridge Office, Child and Youth Mental Health Programs | Bracebridge |
| Simcoe Muskoka Family Connexions, Huntsville Office, Child and Youth Mental Health Programs | Huntsville |
| Simcoe Urban Native Housing, Barrie, Rising SUN Women's Support Group | Barrie |
| Stronger Together | Wasaga Beach |
| YMCA Northumberland, Cobourg - Elgin Street West, Mothers of Newborns | Cobourg |