| Association of Ontario Doulas, No Physical Address | Toronto |
| Barrie and Community Family Health Team, Barrie Primary Care Campus, Prenatal and Well Baby Clinic | Barrie |
| Barrie Area Native Advisory Circle, Barrie - 125 Bell Farm Rd, Suite 200, Mamaway Wiidokdaadwin Clinic | Barrie |
| Barrie Area Native Advisory Circle, Orillia, Mamaway Wiidokdaadwin Clinic | Orillia |
| Barrie Midwives | Barrie |
| Birth Connection | Cobourg |
| Breastfeeding Network - Stratford & Area | Stratford |
| BRIA Mental Healthcare, Online | Toronto |
| Caring Hands Midwifery Services | New Tecumseth |
| CBI Home Health | Barrie |
| Collingwood General and Marine Hospital | Collingwood |
| Collingwood General and Marine Hospital, Collingwood, Collingwood Well Baby Clinic | Collingwood |
| Countryside Midwifery Services | Perth East |
| Doula Group (The) | Barrie |
| Envisage Pregnancy Services, Barrie | Barrie |
| Envisage Pregnancy Services, South Georgian Bay | Collingwood |
| Friends of Muskoka Midwives, Bracebridge | Bracebridge |
| Full Circle Lactation Services | Barrie |
| Grey Bruce Public Health, Family Health Programs | Owen Sound |
| Hanover Family Health Team, Breastfeeding and Infant Feeding Support | Hanover |
| Huron Pelvic Health, Lactation Consulting Services | Central Huron |
| Huron Perth Public Health, Clinton - London Rd, Huron Perth Public Health - Clinton Office | Central Huron |
| Huron Perth Public Health, Healthy Babies, Healthy Children | Stratford |
| Huron Perth Public Health, Pregnancy and Prenatal Classes, Online/Web Service | Ontario |
| Huron Perth Public Health, Stratford - West Gore St., Huron Perth Public Health - Stratford Office | Stratford |
| Huron Perth Public Health, Breastfeeding Supports | Stratford |
| Jess Kuypers Birth and Breastfeeding - Doula, In Home Care, Doula and Breastfeeding Services | Springwater |
| Kawartha Birth and Lactation, No physical address | Peterborough |
| Kawartha Community Midwives, Stewart St | Peterborough |
| Keystone Child, Youth and Family Services, Owen Sound - 3rd Ave W, Keystone Prevention and Community Programs | Owen Sound |
| Listowel-Wingham and Area Family Health Team, North Perth Breastfeeding Clinic, Listowel | North Perth |
| London Health Sciences Centre, Victoria Hospital, Pregnancy Options Program | London |
| Lovesick Lake Native Women's Association | Selwyn Township |
| Métis Nation of Ontario - Great Lakes Metis Council, Owen Sound, Healing and Wellness Branch | Owen Sound |
| Midland Midwives By the Bay, Georgian Bay Women's Clinic | Midland |
| Midwives Grey Bruce | Owen Sound |
| Midwives Nottawasaga | Collingwood |
| Midwives of Headwater Hills | Orangeville |
| Midwives of Muskoka, Bracebridge | Bracebridge |
| Mom's 4 Mom's Doula Services, No Physical Address | Oro-Medonte |
| Moose Deer Point First Nation, MacTier - 1025C Mitawbik Rd, Health Services | Georgian Bay Township |
| Muskoka Algonquin Healthcare, Obstetrics (Labour & Delivery), Huntsville District Memorial Hospital Site | Huntsville |
| M'Wikwedong Indigenous Friendship Centre | Owen Sound |
| North Bay Parry Sound District Health Unit, Parry Sound Office, North Bay Parry Sound District Health Unit, Parry Sound Office | Parry Sound |
| Orillia Native Women's Group | Orillia |
| Orillia Soldiers' Memorial Hospital, Orillia - 170 Colborne St W, Birthing Preparation Program | Orillia |
| Pam Peca Consulting - IBCLC - Lactation Consultant, Pam Peca Consulting | Springwater |
| Peterborough Pregnancy Support Services, Aylmer St North | Peterborough |
| Peterborough Public Health, Peterborough - King St, Healthy Babies, Healthy Children | Peterborough |
| Peterborough Regional Health Centre | Peterborough |
| Pregnancy, Birth and Beyond | Orillia |
| Rama Health Centre, Mnoyaawgamig - House of Wellbeing | Chippewas of Rama First Nation |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Birthing Unit Tour | Barrie |
| Serenity Birth Studio | Barrie |
| Simcoe Muskoka District Health Unit, Alliston, Breastfeeding Support Group | New Tecumseth |
| Simcoe Muskoka District Health Unit, Angus, Prenatal Classes | Angus |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Healthy Babies Healthy Children Program | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Prenatal Classes | Barrie |
| Simcoe Muskoka District Health Unit, Barrie, Breastfeeding Support Group | Barrie |
| Simcoe Muskoka District Health Unit, Bracebridge Public Library, Breastfeeding Support Group | Bracebridge |
| Simcoe Muskoka District Health Unit, Bracebridge, Prenatal Classes | Bracebridge |
| Simcoe Muskoka District Health Unit, Bradford West Gwillimbury Community Hub, Prenatal Classes | Bradford West Gwillimbury |
| Simcoe Muskoka District Health Unit, Bradford, Breastfeeding Support Group | Bradford West Gwillimbury |
| Simcoe Muskoka District Health Unit, Collingwood, Breastfeeding Support Group | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood, Prenatal Classes | Collingwood |
| Simcoe Muskoka District Health Unit, Huntsville, Prenatal Classes | Huntsville |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Prenatal Classes | Midland |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Prenatal Classes | Orillia |
| SIRCH Community Services | Haliburton |
| South East Grey Community Health Centre, Chatsworth, Chatsworth Satellite Site | Chatsworth |
| South East Grey Community Health Centre, Dundalk - Main St, Dundalk Medical Clinic | Southgate |
| Stratford Midwives | Stratford |
| The Good Latch | Barrie |
| Wellington-Dufferin-Guelph Public Health, Orangeville, Public Health | Orangeville |