| Achēv, Accelerating Career Advancement Program | Mississauga |
| Ad Standards, Toronto | Toronto |
| Alcohol and Gaming Commission of Ontario | Toronto |
| Bereavement Authority of Ontario, Toronto | Toronto |
| Burlington. By-law Compliance, Licensing Services | Burlington |
| Burlington. City Hall, Burlington City Hall, Applications, Licences and Permits | Burlington |
| Burlington. City Hall, Service Burlington | Burlington |
| Burlington. Legislative Services | Burlington |
| Burlington. Legislative Services, Advisory Committees | Burlington |
| Burlington. Transportation Services, Municipal Parking Operations | Burlington |
| Canada. Border Services Agency, NEXUS Program | Niagara Falls |
| Canada. Canada Revenue Agency, Charities Directorate | |
| Canada. Canadian Food Inspection Agency, Ontario Area Office | Guelph |
| Canada. Canadian Intellectual Property Office, Patents | Gatineau |
| Canada. Canadian Radio-television and Telecommunications Commission, Spam Reporting Centre | Ottawa |
| Canada. Canadian Radio-television and Telecommunications Commission | Ottawa |
| Canada. Competition Bureau, Information Centre | Gatineau |
| Canada. Health Canada, Cannabis in Canada | Ottawa |
| Canada. Immigration, Refugees and Citizenship Canada, Passport Office, Brampton Branch | Brampton |
| Canada. Immigration, Refugees and Citizenship Canada, Passport Office, Mississauga Branch | Mississauga |
| Canada. Indigenous Services Canada | Toronto |
| Canada. Innovation, Science and Economic Development Canada, Gatineau, Canadian Intellectual Property Office | Gatineau |
| Canada. Innovation, Science and Economic Development Canada, Corporations Canada - Business Incorporation | Ottawa |
| Canada. Innovation, Science and Economic Development Canada, Spectrum and Telecommunications Sector - Amateur Radio Service Centre | |
| Canada. Innovation, Science and Economic Development, Ontario Region, Toronto, Office of the Superintendent of Bankruptcy, Ontario Region | Toronto |
| Canada. Office of the Information Commissioner of Canada | Ottawa |
| Canada. Office of the Privacy Commissioner of Canada, Ottawa | Ottawa |
| Canada. Royal Canadian Mounted Police, Canadian Firearms Program | |
| Canada. Social Insurance Numbers, Toronto | Toronto |
| Canada. Transport Canada, Pleasure Craft Licensing and Proof of Competency | Halton Region |
| Canada. Transport Canada, Pleasure Craft Licensing Centre | Ottawa |
| Canadian Automobile Association, South Central Ontario - Burlington Office | Burlington |
| Canadian Human Rights Commission | Ottawa |
| Canadian Power and Sail Squadrons, Niagara District - Burlington Power and Sail Squadron | Burlington |
| Canadian Power and Sail Squadrons, Oakville Power and Sail Squadron | Oakville |
| 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 | North York 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 |
| DriveTest - Guelph, Guelph, DriveTest Centre | Guelph |
| DriveTest Centre, Burlington, Driver Examination Centre | Burlington |
| DriveTest Centre, Oakville, Driver Examination Centre | Oakville |
| Electrical Safety Authority | Cambridge |
| Equifax Canada Inc | Toronto |
| Federation of Rental Housing Providers of Ontario, Rental Housing Provider Support | Toronto |
| Financial Services Regulatory Authority of Ontario | Toronto |
| Halton Hills. Corporate Services | Georgetown |
| Halton Hills. Fire Department, Inspections and Permits | Halton Hills |
| Halton Hills. Town Council, Clerks Division Services | Halton Hills |
| Halton Hills. Transportation and Public Works, Parking | Halton Hills |
| Halton Regional Police Service, Police Records Checks | Oakville |
| Halton. Halton Region Public Health, Food Safety | Oakville |
| Halton. Halton Region Public Health, Immunization Services | Oakville |
| Halton. Small Business Centre, Small Business Enterprise Centre | Oakville |
| Information and Privacy Commissioner of Ontario | Toronto |
| International Credential Assessment Service of Canada | Guelph |
| Law Society of Ontario | Toronto |
| Lost Wallet, Burlington | Burlington |
| Lost Wallet, Oakville | Oakville |
| Milton. Community Services, Special Events | Milton |
| Milton. Corporate Services, Parking | Milton |
| Milton. Engineering Services | Milton |
| Milton. Fire and Rescue Services, Community Education Programs | Milton |
| Milton. Legislative and Legal Services Division, Freedom Of Information Requests | Milton |
| Milton. Town Clerk's Division, Accessibility Information and Standards | Milton |
| Milton. Town Clerk's Division, Business Licences and Permits | Milton |
| Milton. Town Clerk's Division, Vital Statistics | Milton |
| Oakville. Clerks Department | Oakville |
| Oakville. Clerks Department, Marriage, Lottery, and Liquor Licences | Oakville |
| Oakville. Fire Department, Fire Prevention Programs | Oakville |
| Oakville. Municipal Enforcement Services, Parking Operations | Oakville |
| Oakville. Municipal Enforcement Services, Business Licensing | Oakville |
| Oakville. Recreation and Culture, Special Events Service | Oakville |
| Ontario College Application Service | Guelph |
| 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 Energy Board, Consumer Information and Protection | Toronto |
| Ontario Human Rights Commission | Toronto |
| Ontario Motor Vehicle Industry Council | Toronto |
| Ontario Public Holidays and Retail Business Holidays | Ontario |
| Ontario Securities Commission | Toronto |
| Ontario. Ministry for Seniors and Accessibility | Toronto |
| Ontario. Ministry of Children, Community and Social Services, Mississauga | Mississauga |
| Ontario. Ministry of Education | 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 |
| Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices Branch, Mississauga, Employment Practices Branch, Central Region West, Mississauga | Mississauga |
| Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices Branch, Toronto - University Ave, Employment Practices Branch, Main Office | Toronto |
| Ontario. Ministry of the Attorney General, Hamilton Services, Family Court - Litigation Department | Hamilton |
| Ontario. Ministry of the Attorney General, Hamilton Services, Office of the Public Guardian and Trustee | Hamilton |
| Ontario. Ministry of the Environment, Conservation and Parks, Ontario Parks | Peterborough |
| Ontario. Ministry of Transportation, Tow Zone Pilot Program | Ontario |
| Real Estate Council of Ontario | Toronto |
| Registered Massage Therapists' Association of Ontario | Etobicoke |
| Retirement Homes Regulatory Authority | Toronto Downtown Central |
| Royal College of Dental Surgeons of Ontario | Toronto Downtown North |
| Service Canada, Guelph, Service Canada Centre | Guelph |
| Service Canada, Social Insurance Registration Office | Bathurst |
| Service Canada, Service Canada, Mississauga Service Canada Centre | Mississauga |
| Service Canada, Passport Canada | Ottawa |
| Service Canada - Halton Region, Oakville, Federal Government Services | Oakville |
| Service Canada - Halton Region, Burlington, Federal Government Services | Burlington |
| Service Canada - Halton Region, Georgetown, Federal Government Services | Georgetown |
| Service Canada - Halton Region, Milton, Federal Government Services | Milton |
| Service Canada Hamilton Locations, Hamilton East Service Canada Centre and Passport Services, Canadian Passport Service | Hamilton |
| Service Canada Hamilton Locations, Hamilton Mountain Service Canada Centre and Passport Services | Hamilton |
| ServiceOntario, ServiceOntario, Brampton North Service Counter | Brampton |
| ServiceOntario, ServiceOntario, Brampton South Service Counter | Brampton |
| ServiceOntario, ServiceOntario, Mississauga - Dundas St W Service Counter | Mississauga |
| ServiceOntario, Accessible Parking Permit | Toronto |
| ServiceOntario, Office of the Registrar General | Toronto |
| ServiceOntario | Toronto |
| ServiceOntario - Halton Region, Burlington - West Service Counter, Provincial Government Services | Burlington |
| ServiceOntario - Halton Region, Burlington - East Service Counter, Provincial Government Services | Burlington |
| ServiceOntario - Halton Region, Georgetown Service Counter, Provincial Government Services | Georgetown |
| ServiceOntario - Halton Region, Milton - Highpoint Service Counter, Provincial Government Services | Milton |
| ServiceOntario - Halton Region, Milton - Milton Mall Service Counter, Provincial Government Services | Milton |
| ServiceOntario - Halton Region, Oakville - Dorval Crossing East Service Counter, Provincial Government Services | Oakville |
| ServiceOntario - Halton Region, Oakville - Pacific Road Service Counter, Provincial Government Services | Oakville |
| ServiceOntario - Halton Region, Oakville - Staples Service Counter, Provincial Government Services | Oakville |
| ServiceOntario - Halton Region, Oakville - Trafalgar Village Service Counter, Provincial Government Services | Oakville |
| ServiceOntario - Wellington County, Silvercreek and Highway 6 (Guelph), Provincial Government Services | Guelph |
| ServiceOntario - Wellington County, Stone Road and Gordon (Guelph), Provincial Government Services | Guelph |
| Skilled Trades Ontario, Apprenticeship Program | Mississauga |
| Technical Standards and Safety Authority | Toronto |
| University of Toronto, Comparative Education Service | Toronto |
| World Education Services, Toronto | Toronto |
