| Ad Standards | Toronto |
| Adjala-Tosorontio, Township of, Municipal Office | New Tecumseth |
| Alcohol and Gaming Commission of Ontario, Head Office | Toronto |
| Automobile Protection Association | Toronto |
| Bradford West Gwillimbury Municipal Office | Bradford West Gwillimbury |
| Busby Centre, Barrie - 88 Mulcaster St, Voluntary Trustee Program | Barrie |
| Canada Post Corporation, Barrie - Collier St, Post Office | Barrie |
| Canada. Canada Revenue Agency [Simcoe County], Community Volunteer Income Tax Program | Bradford West Gwillimbury |
| Canada. Canada Revenue Agency - Grey Bruce, Brockton, Community Volunteer Income Tax Program | Brockton |
| Canada. Canada Revenue Agency - Grey Bruce, Tobermory, Community Volunteer Income Tax Program | Northern Bruce Peninsula |
| Canada. Canada Revenue Agency [Barrie], Barrie, North Central Ontario Tax Services Office - Barrie | Barrie |
| Canada. Canada Revenue Agency [Simcoe County], Community Volunteer Income Tax Program | Innisfil |
| Canada. Canada Revenue Agency, Toronto Region, Canada Child Benefit | Toronto |
| Canada. Canada Revenue Agency. Toronto North Tax Services Office, GST/HST Credit | North York |
| Canada. Canadian Food Inspection Agency, Barrie District Office, Canada. Canadian Food Inspection Agency, Barrie District Office | Barrie |
| Canadian Anti-Fraud Centre, No physical location | North Bay |
| Canadian Firearms Program | Ottawa |
| Canadian Hearing Services, Hearing Care Counselling Program | |
| Canadian Human Rights Commission | Ottawa |
| College of Dental Technologists of Ontario | Scarborough |
| College of Physicians and Surgeons of Ontario | Toronto Downtown Central |
| College of Psychologists of Ontario (The) | Toronto Downtown North |
| Commissionaires, Barrie, Identification Services | Barrie |
| Consolidated Credit Canada, Mailing Address | Toronto |
| Credit Canada Debt Solutions, Barrie Office | Barrie |
| Deaf Access Simcoe Muskoka, Barrie Central Office, Community Support Services | Barrie |
| Essa (Township of). Municipal Office | Essa |
| Fair Practices Commission | Toronto Downtown |
| General Topics and Information - Central East, No Physical Location, Free and Low Cost Community Volunteer Income Tax Clinics Simcoe County | |
| Independent Living Services Simcoe County, Barrie, Community Development and Training and Consultation | Barrie |
| Independent Living Services Simcoe County, Barrie | Barrie |
| Information and Privacy Commissioner of Ontario | Toronto Downtown |
| Insurance Bureau of Canada, Ontario Head Office, Consumer Information Centre | Toronto |
| Municipal Property Assessment Corporation, Barrie Assessment Office | Barrie |
| New Tecumseth. Municipal Office | New Tecumseth |
| 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 of Education, Central East Region, Child Care Quality Assurance and Licensing | Toronto |
| Ontario. Ministry of Finance., Oshawa, Retail Sales Tax | Oshawa |
| Ontario. Ministry of Government and Consumer Services. Consumer Protection Ontario | Toronto |
| Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices Branch, Central Region West, Newmarket, Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices Branch, Central Region West, Newmarket | Newmarket |
| Ontario. Ministry of Municipal Affairs and Housing. Rental Housing Enforcement Unit | Toronto |
| Ontario. Ministry of the Attorney General, Barrie Courthouse - Office 301, Superior Court of Justice - Family Court | Barrie |
| Ontario. Ministry of the Attorney General. Office of the Public Guardian and Trustee | Toronto |
| Ontario. Ministry of Transportation, Barrie - Commerce Park Dr, Central Region - International Registration Plan | Barrie |
| S.H.I.F.T, Daytime Drop-In Centre Program | New Tecumseth |
| Salvation Army Barrie, Barrie - Bayfield St, Community and Family Services | Barrie |
| Service Canada, Barrie, Service Canada Centre, Barrie | Barrie |
| Service Canada, Collingwood, Service Canada Centre | Collingwood |
| Service Canada Scheduled Outreach Site, Alliston, Federal Government Services | New Tecumseth |
| ServiceOntario, Alliston, Alliston Service Counter | New Tecumseth |
| ServiceOntario, Barrie - Bayfield St, Barrie (Bayfield St) Service Counter | Barrie |
| ServiceOntario, Barrie - Burton Ave, Barrie (Burton Ave) Service Counter | Barrie |
| ServiceOntario, Barrie - Simcoe St, Barrie (Simcoe St) Service Counter | Barrie |
| ServiceOntario, Barrie - Worsley St, Barrie Land Registry Office 51 | Barrie |
| ServiceOntario, Bradford, Bradford Service Counter | Bradford West Gwillimbury |
| ServiceOntario, Office of the Registrar General | Toronto |
| Simcoe County Home Builders' Association | Barrie |
| Simcoe Muskoka Family Connexions, Barrie Office, Child Welfare, Adoption and Foster Care Services | Barrie |
| Tarion Warranty Corporation, Ontario New Home Warranty Program | Toronto Downtown |
| Town of Innisfil, Town Hall, Innisfil Municipal Office | Innisfil |
| TransUnion of Canada, Burlington, Consumer Relations | Burlington |