| Ad Standards, Toronto | Toronto |
| Alcohol and Gaming Commission of Ontario | Toronto |
| Automobile Protection Association | Toronto |
| By Peaceful Waters, Listowel Office | Listowel |
| By Peaceful Waters, Stratford Office | Stratford |
| Canada. Canada Revenue Agency, Toronto Region, Canada Child Benefit | 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 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 |
| Credit Canada Debt Solutions, Telephone Service | Toronto |
| Drivetest, Stratford | Stratford |
| General Topics and Information - Central East, Perth County, Income Tax Clinics, Perth County | Stratford |
| General Topics and Information - Central East, Income Tax Clinics, Perth County | |
| Huron-Perth Children's Aid Society, Parenting Support & Education, Stratford - 639 Lorne Ave E | Stratford |
| Huron-Perth Children's Aid Society, Stratford - 639 Lorne Ave E, Head Office | Stratford |
| Insurance Bureau of Canada, Consumer Information Centre | Toronto |
| General Topics and Information - Central East, Lost Wallet | |
| Maitland Valley Snowmobile Club | North Perth |
| Milverton and District Snowmobile Club | Perth East |
| North Perth. Municipal Office | North Perth |
| 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 Motor Vehicle Industry Council | Toronto |
| Ontario. Ministry for Seniors and Accessibility | Toronto |
| 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 Government and Consumer Services, Consumer Protection Ontario | Toronto |
| Ontario. Ministry of Health, Public Health Care | Toronto Downtown Central |
| Ontario. Ministry of Long-Term Care, Long-Term Care Family Support and Action Line | Toronto Downtown Central |
| Ontario. Ministry of Municipal Affairs and Housing. Rental Housing Enforcement Unit | Toronto |
| Ontario. Ministry of the Attorney General. Office of the Public Guardian and Trustee | Toronto |
| Perth East. Municipal Office, Milverton - Mill St E, Municipal Office | Perth East |
| Perth South. Municipal Office, St. Pauls - Road 122 | Perth South |
| Salvation Army, Listowel, 326 Main St. E, Unit D - Family Services & Food Bank, Community and Family Services | North Perth |
| Salvation Army, Stratford - St. Marys Regional Community Ministries, Stratford - Lightbourne Ave, Community and Family Services, Free Income Tax Clinic | Stratford |
| 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 | Ontario |
| ServiceOntario - Perth County, Stratford - 59 Lorne Ave E, Stratford Full Service Counter | Stratford |
| St Marys. Municipal Office, St. Marys - Queen St | St Marys |
| Stratford. Municipal Office, Stratford City Hall | Stratford |
| TransUnion of Canada, Burlington, Consumer Relations | Burlington |
| UPLevel, Stratford, Call Centre | Stratford |
| West Perth. Municipal Office, Municipal Office - Wellington St | West Perth |
| West Perth. Municipal Office, West Perth Public Library, Community Volunteer Income Tax Program - Tax Clinic | West Perth |