| Easter Seals Canada | Toronto Downtown |
| Easter Seals Ontario, West Region - Halton Region District | Burlington |
| EFry Hope and Help for Women, Mississauga Office | Mississauga |
| eMentalHealth.ca | Ottawa |
| English Learners Club of Oakville, ESL Conversation Classes | Halton South |
| Epilepsy South Central Ontario, Mississauga | Mississauga |
| Equilibrium, Oakville, Mood Disorder Support Group | Oakville |
| ErinoakKids, Oakville site, Centre for Treatment and Development | Oakville |
| ErinoakKids Centre for Treatment and Development, Mississauga, Children's Treatment Centre | Mississauga |
| 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 |
