| Eaglesfield Community Church | Burlington |
| East Plains United Church | Burlington |
| Ebenezer Canadian Reformed Church | Burlington |
| Ebenezer United Church | Milton |
| Edgewater Senior Living, Retirement Residence | Georgetown |
| Edward's Pharmacy, Pharmacy Services | Oakville |
| Elder Abuse Prevention Ontario | Etobicoke |
| ElderDog Canada, Halton Pawd - No Physical Address | Halton Region |
| Elizz by SE Health, Elizz Help at Home Services | Hamilton |
| Emfy Health, In-Home Care Services | Mississauga |
| End of Life Doula Association of Canada, Resources and Doula Network | |
| Enhanced Mobility | Oakville |
| Epilepsy South Central Ontario, Mississauga | Mississauga |
| Equilibrium Halton, Mental Health Support Group | Oakville |
| Eramosa Nonprofit Housing Corporation, Eramosa Non-Profit Housing Corporation | Guelph-Eramosa |
| Ernestine's Women's Shelter, Emergency Shelter | Toronto |
| Esquesing Historical Society | Georgetown |
| Estate Administration and Wills, Halton Region | Halton Region |
| Evangel Family Church | Acton |
| Evangel Pentecostal Church | Oakville |
| Extendicare Burloak, Long Term Care Home | Burlington |
| Extendicare Halton Hills, Long-Term Care Centre | Halton Hills |
| Extendicare Northridge, Long Term Care Centre | Oakville |
