| Easter Seals Canada | Toronto Downtown |
| Easter Seals Ontario, West Region - Halton Region District | Burlington |
| EFry Hope and Help for Women, Brampton, Community programs | Brampton |
| Embrace Multicultural Education Center | Mississauga |
| eMentalHealth.ca, Ottawa | Ottawa |
| Empowering Korean Immigrants | Markham |
| English Learners Club of Oakville, ESL Conversation Classes | Oakville |
| Entente Education Canada, Halton District 15 - No Physical Address | Halton Region |
| Epilepsy South Central Ontario | Mississauga |
| Equilibrium, Mental Health Support Group | Oakville |
| ErinoakKids, Oakville Site, Centre for Treatment and Development | Oakville |
| ErinoakKids Centre for Treatment and Development, Brampton, Children's Treatment Centre | Brampton |
| Ernest C Drury School for the Deaf | Milton |
| Ernest C Drury School for the Deaf, Ontario Youth Apprenticeship Program | Milton |
| Ernestine's Women's Shelter, Emergency Shelter | Toronto |
| Exam Proctoring, Halton Region | Halton Region |
