| Ad Standards, Toronto | Toronto |
| Alcohol and Gaming Commission of Ontario | Toronto |
| Canada. Transport Canada, Sarnia, Office of Boating Safety - Pleasure Craft Licences | Sarnia |
| Canada. Transport Canada, Sarnia, Office of Boating Safety - Pleasure Craft Operator Card | Sarnia |
| Canadian Food Inspection Agency, Mitchell District Office, Animals, Importation and Exportation | West Perth |
| College of Audiologists and Speech Language Pathologists of Ontario | Toronto Downtown North |
| College of Dental Technologists of Ontario | Scarborough |
| College of Early Childhood Educators | Toronto |
| College of Physicians and Surgeons of Ontario | Toronto Downtown Central |
| College of Psychologists of Ontario (The) | Toronto Downtown North |
| College of Registered Psychotherapists of Ontario | Toronto Downtown |
| Drivetest, Stratford | Stratford |
| Huron-Perth Children's Aid Society, Stratford - 639 Lorne Ave E, Head Office | Stratford |
| Information and Privacy Commissioner of Ontario | Toronto Downtown |
| General Topics and Information - Central East, Lost Wallet | |
| Maitland Valley Snowmobile Club | North Perth |
| Milverton and District Snowmobile Club | Perth East |
| General Topics and Information - Central East, Obtaining a Birth Certificate - Births Outside of Canada - Overview | |
| General Topics and Information - Central East, Obtaining a Birth Certificate - Births Outside of Ontario - Overview | |
| General Topics and Information - Central East, Obtaining a copy of a Certificate of Divorce Decree | |
| Ontario College of Trades | Toronto Downtown |
| Ontario Motor Vehicle Industry Council | Toronto |
| Ontario Photo Card | Ontario |
| Ontario. Ministry for Seniors and Accessibility | Toronto |
| Ontario. Ministry of Community and Social Services, Accessibility for Ontarians with Disabilities Act, Online/Web Service | Ontario |
| Ontario. Ministry of Education, Central East Region, Child Care Quality Assurance and Licensing | Toronto |
| Ontario. Ministry of Environment, Conservation and Parks, Peterborough - Mailing Address, Natural Resources Information and Support Centre | Peterborough |
| Ontario. Ministry of Health, Public Health Care | Toronto Downtown Central |
| Service Canada Centres - Perth and Huron Counties, Exeter, Scheduled Outreach Site | South Huron |
| Service Canada Centres - Perth and Huron Counties, Stratford, Service Canada Centre | Stratford |
| Service Canada Centres - Perth and Huron Counties, Wingham, Scheduled Outreach Site | North Huron |
| ServiceOntario, Office of the Registrar General | Toronto |
| ServiceOntario - Huron County, Exeter, Huron County Service Counters | South Huron |
| ServiceOntario - Perth County, Listowel, Perth County Service Counters | North Perth |
| ServiceOntario - Perth County, Mitchell, Perth County Service Counters | West Perth |
| ServiceOntario - Perth County, Online Service, ONLAND - Ontario Land Registry Access, Perth County | |
| ServiceOntario - Perth County, Stratford - 59 Lorne Ave E, Stratford Full Service Counter | Stratford |
| Stratford. Municipal Office, Stratford City Hall | Stratford |