| Animal Control, Pest Control and Nuisance Animals, Burlington | Burlington |
| Canada Safety Council | Ottawa |
| Canada. Canadian Centre for Occupational Health and Safety, Safety Info Line | Hamilton |
| COVID-19 Information, Halton Region | Halton Region |
| Halton. Halton Region Public Health | Oakville |
| Halton. Halton Region Public Health, Environmental Health | Oakville |
| Halton. Halton Region Public Health, Food Safety | Oakville |
| Halton. Halton Region Public Health, HaltonParents | Oakville |
| Halton. Halton Region Public Health, Infectious Disease and Outbreak Management Surveillance | Oakville |
| Halton. Public Works, Water & Environment | Oakville |
| Lice Squad, Lice Removal Products and Services | Burlington |
| Lung Health Foundation | North York East |
| Naturally Clean, Hoarding and Clutter Clean-up Services | Halton Region |
| Niagara Hoarding Cleanup, Hoarding and Clutter Clean-up Services | Niagara Falls |
| Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices Branch, Central Region West, Mississauga | Mississauga |
| Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices Branch, Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices Branch, Main Office | Toronto |
| Ontario. Ministry of Labour, Immigration, Training and Skills Development. Occupational Health and Safety Branch | Toronto |
| Ontario. Ministry of the Environment, Conservation and Parks, Spills Action Centre | Toronto |
| PharmaEssence Drug Mart, Pharmacy Services | Georgetown |
| Raider Wildlife Control, Hoarding and Clutter Clean-up Services | Hamilton |
| Technical Standards and Safety Authority | Toronto |
| Urge To Purge, Hoarding Remediation Services | Welland |
| WeMove-It.com, Hoarding and Clutter Clean-up Services | Hamilton |
| Workers Health and Safety Legal Clinic | Toronto |
| Workplace Safety and Insurance Board, Toronto Office | Toronto |
| Workplace Safety and Prevention Services, Mississauga - Main Office | Mississauga |
