| Bereavement Authority of Ontario | Toronto |
| Canada. Canadian Radio-television and Telecommunications Commission | Gatineau |
| Canada. Innovation, Science and Economic Development, Ontario Region, Office of the Superintendent of Bankruptcy, Ontario Region | Toronto |
| Canadian Therapeutic Riding Association | Guelph |
| College of Audiologists and Speech Language Pathologists of Ontario | Toronto Downtown North |
| College of Chiropractors of Ontario | Toronto Downtown Central |
| College of Denturists of Ontario | Toronto Downtown Central |
| College of Dietitians of Ontario | Toronto |
| College of Early Childhood Educators | Toronto |
| College of Homeopaths of Ontario | Toronto Downtown Central |
| College of Immigration and Citizenship Consultants | Burlington |
| College of Massage Therapists of Ontario | Toronto Downtown North |
| College of Naturopaths of Ontario (The) | Toronto Downtown Central |
| College of Nurses of Ontario | Toronto Downtown North |
| College of Occupational Therapists of Ontario | Toronto Downtown Central |
| College of Opticians of Ontario | Toronto Downtown Central |
| College of Physicians and Surgeons of Ontario | Toronto Downtown Central |
| College of Physiotherapists of Ontario | Toronto Downtown Central |
| College of Psychologists of Ontario (The) | Toronto Downtown North |
| College of Registered Psychotherapists of Ontario | Toronto Downtown |
| College of Traditional Chinese Medicine Practitioners and Acupuncturists of Ontario | Markham |
| College of Veterinarians of Ontario | Guelph |
| Electrical Safety Authority | Cambridge |
| Law Society of Ontario | Toronto |
| Ontario College of Pharmacists | Toronto Downtown North |
| Ontario College of Social Workers and Social Service Workers | Toronto Downtown North |
| Ontario College of Teachers | Toronto |
| Ontario Motor Vehicle Industry Council | Toronto |
| Real Estate Council of Ontario | Toronto |
| Registered Massage Therapists' Association of Ontario | Etobicoke |
| Royal College of Dental Surgeons of Ontario | Toronto Downtown North |
| Technical Standards and Safety Authority | Toronto |
