| Association for Bright Children of Ontario, Toronto - No Physical Address, Toronto Chapter | Caledon (Town of) |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Hanover - 425 10th St, Pregnancy and Parenting | Hanover |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Owen Sound - 1101 2nd Ave E, Suite 207, Pregnancy and Parenting | Owen Sound |
| Candlelighters Simcoe - Parents of Children with Cancer, Barrie - Mailing Address | Barrie |
| Cangrands National Kinship Support, Mailing Address | Saskatchewan |
| Centre de santé communautaire CHIGAMIK Community Health Centre, Mama Tribe, Midland - Bayshore Dr | Midland |
| Chippewas of Nawash Unceded First Nation, Neyaashiinigmiing - Lighthouse Rd, Nawash Native Child Welfare | Neyaashiinigmiing |
| Christine's Place, Gravenhurst | Gravenhurst |
| Christine's Place, Huntsville | Huntsville |
| Community Living Association for South Simcoe, Alliston, Parent / Advocate Support Group | New Tecumseth |
| Emmanuel Baptist Church, Barrie | Barrie |
| Ferndale Bible Church, DivorceCare | Peterborough |
| GrandKin of Simcoe County | Barrie |
| Hands TheFamilyHelpNetwork.ca, Child Development Services, Bracebridge | Bracebridge |
| Hands TheFamilyHelpNetwork.ca, Child Development Services, Parry Sound | Parry Sound |
| Hands TheFamilyHelpNetwork.ca, Child Development Services, Powassan | Powassan |
| Hands TheFamilyHelpNetwork.ca, Child Development Services, Sundridge | Sundridge |
| Hazelbrae Barnardo Home Memorial Group | Peterborough |
| 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 Beginnings Support Group, Online/Web Service | Toronto |
| 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 |
| Pregnancy Care and Family Support Centre, Pregnancy Care & Family Support Centre | Haliburton |
| Simcoe Muskoka District Health Unit, Alliston - 13 Wellington St W, Breastfeeding Place | New Tecumseth |
| Simcoe Muskoka District Health Unit, Barrie - 129 Ferris Lane, Breastfeeding Place | Barrie |
| Simcoe Muskoka District Health Unit, Bradford - 425 Holland St W, Breastfeeding Place | Bradford West Gwillimbury |
| Simcoe Muskoka District Health Unit, Collingwood - 250A Peel St, Breastfeeding Place | Collingwood |
| Simcoe Muskoka District Health Unit, Innisfil - 967 Innisfil Beach Rd, Breastfeeding Place | Innisfil |
| 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 |