| Access Midwives, Midwifery Services | Hamilton |
| Adoption Council of Ontario, Markham - Mailing Address | Markham |
| Association of Ontario Midwives | Toronto Downtown Central |
| Beginnings Family Services | Hamilton |
| Burlington and Area Midwives, East Burlington Office, Midwifery Services | Burlington |
| Burlington and Area Midwives, West Burlington Office, Midwifery Services | Burlington |
| Centre de Santé Communautaire Hamilton/Niagara, Centre de Santé Communautaire Canada Prenatal Nutrition Program | Hamilton |
| College of Midwives of Ontario | Toronto Downtown North |
| Community Midwives of Halton, Oakville | Oakville |
| Community Midwives of Halton, Milton | Milton |
| Halton Baby-Friendly Initiative | Halton Region |
| Halton Healthcare, Georgetown Hospital, Maternity | Halton Hills |
| Halton Healthcare, Milton District Hospital, Maternity | Milton |
| Halton Healthcare, Milton District Hospital, Tender Loving Corner Breastfeeding Clinic and Baby Boutique | Milton |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Maternity | Oakville |
| Halton Healthcare, Oakville Trafalgar Memorial Hospital, Tender Loving Corner Breastfeeding Clinic and Baby Boutique | Oakville |
| Halton. Halton Region Public Health, Early Years Health | Oakville |
| Halton. Halton Region Public Health, Halton Prenatal Nutrition Program | Oakville |
| Halton. Halton Region Public Health, Healthy Babies Healthy Children Program | Oakville |
| Hamilton Health Sciences, Infant Parent Program, Ron Joyce Children's Health Centre | Hamilton |
| Hawthorne Midwives | Milton |
| Hope Place Centres, Community Based Addiction Treatment | Halton Hills |
| Joseph Brant Hospital, Maternal and Child Program | Burlington |
| La Leche League, Ontario - Online Service, Find a La Leche League Group | |
| Maternal Minds, Support Group Programs | Milton |
| Midwives of Brampton and Halton Hills, Midwifery Services | Brampton |
| Midwives of Mississauga | Erin Mills |
| Postpartum Support International, Postpartum Mood Disorder Services | Toronto |
| Shifra Homes, Maternity Residences | Burlington |
| Teresa Group - Child and Family Aid, Infant Formula Program | Toronto |
| Women's College Hospital, Crossroads Refugee Health Clinic | Toronto |
| Women's College Hospital, Reproductive Life Stages Program | Toronto |
