| Adoption Council of Ontario | Toronto |
| Advocacy Centre for Tenants Ontario | Toronto |
| Advocacy Centre for the Elderly | Toronto |
| Alcohol and Gaming Commission of Ontario | Toronto |
| ARCH Disability Law Centre | Toronto |
| Automobile Protection Association | Toronto |
| Avon Maitland District School Board, Education Centre | Huron East |
| Canada Mortgage and Housing Corporation, Ontario | Toronto |
| Canadian Association of Farm Advisors | Stratford |
| Canadian Baseball Hall of Fame and Museum | St Marys |
| Canadian Centre for Housing Rights, Eviction Prevention and Tenant Services | Toronto |
| Canadian Environmental Law Association | Toronto |
| Children's Mental Health Ontario | Toronto |
| Chinese and Southeast Asian Legal Clinic, Toronto | Toronto |
| CMHA Huron Perth Addiction and Mental Health Services, Virtual (phone/Zoom), Crossing Bridges | Stratford |
| CMHA Thames Valley Addiction and Mental Health Services - Huron County Sites, Virtual only, Crossing Bridges | |
| Connecting the Dots for Caregivers, Huron-Perth Counties | Stratford |
| Dietitians of Canada - UnlockFood.ca | Toronto Downtown Central |
| Dying With Dignity Canada | Toronto |
| Elder Abuse Prevention Ontario | Etobicoke Central |
| Family Services Perth-Huron, Stratford, Connecting Seniors | Stratford |
| Farm Credit Canada, Listowel Office | North Perth |
| Farm Credit Canada, Stratford Office | Stratford |
| Four County Labour Market Planning Board, Stratford-Bruce Peninsula Economic Region (Bruce, Grey, Huron, Perth), Stratford-Bruce Peninsula Economic Region Workforce Board | Brockton |
| Gateway Centre of Excellence In Rural Health | Goderich |
| General Topics and Information - Central East, Huron County, Flu Clinic Schedules, Central East Ontario | Goderich |
| General Topics and Information - Central East, Perth County, Flu Clinic Schedules, Central East Ontario | Stratford |
| Green Communities Canada | Peterborough |
| HIV & AIDS Legal Clinic Ontario (HALCO) | Toronto |
| Human Rights Tribunal of Ontario | Toronto |
| Huron Health System - Alexandra Marine and General Hospital, Goderich - Huron Rd, Huron Perth Clinical Intensive Case Management | Goderich |
| Huron Perth Cattle Feeders Association | Huron East |
| Huron Perth Community Legal Clinic, Goderich | Goderich |
| Huron Perth Community Legal Clinic, Stratford | Stratford |
| Huron Perth Community Support Services Network, Clinton | Central Huron |
| Huron Perth Healthcare Alliance, Listowel Wingham Outpatient Building, Listowel Mental Health Outpatient Services | North Perth |
| Huron Perth Healthcare Alliance, Mental Health Services - Huron Perth Helpline and Crisis Response Team, SGH - Special Services Unit - Stratford, SGH - Special Services Unit - Stratford | Stratford |
| Huron Perth Healthcare Alliance, Seaforth - 28 Centennial Dr, Mental Health Services | Huron East |
| Huron Perth Healthcare Alliance, Seaforth - 28 Centennial Dr, OTN Primary Care Nurse Practitioners | Huron East |
| Huron Perth Healthcare Alliance, Seaforth - 28 Centennial Dr, Prevention and Early Intervention Program for Psychoses | Huron East |
| Huron Perth Healthcare Alliance, SGH - Special Services Unit - Stratford, Psychiatric Day & Evening Program - Outpatient Individual & Group Counselling | Stratford |
| Huron Perth Public Health, Stratford - West Gore St., Huron Perth Public Health - Stratford Office | Stratford |
| Huron-Perth Children's Aid Society, Parenting Support & Education, Stratford - 639 Lorne Ave E | Stratford |
| Huron-Perth Women for the Support of Agriculture, Women for the Support of Agriculture - Huron / Perth District | West Perth |
| IAVGO Community Legal Clinic | Toronto |
| Income Security Advocacy Centre | Toronto |
| Insurance Bureau of Canada, Consumer Information Centre | Toronto |
| Justice for Children and Youth | Toronto |
| Knollcrest Lodge, Community Outreach Services | Perth East |
| Landlord's Self Help Centre | Toronto |
| Listowel Mental Health Outpatient Services | North Perth |
| Listowel Wingham Hospitals Alliance, Listowel Memorial Hospital | North Perth |
| Listowel Wingham Hospitals Alliance, Wingham and District Hospital | North Huron |
| Lonely No More Program, No Physical Address, Virtual only | |
| My Grandfather's Cat, No Physical Address - Online Service | |
| National Student Loans Service Centre | Mississauga |
| Office of the Fire Marshal, Gravenhurst, Public Safety Training Division - Ontario Fire College Resource Centre | Gravenhurst |
| Ontario Civilian Police Commission | Toronto |
| Ontario Health, Trillium Gift of Life Network | Toronto Downtown Central |
| Ontario Motor Vehicle Industry Council | Toronto |
| Ontario. Ministry for Seniors and Accessibility | Toronto |
| Ontario. Ministry of Agriculture, Food and Agribusiness, Stratford - Lorne Ave E, Stratford Resource Centre | Stratford |
| Ontario. Ministry of Children, Community and Social Services, Mailing address, ServiceOntario INFOline | |
| Ontario. Ministry of Children, Community and Social Services. Family Responsibility Office | 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 Health, Dental Care For Low-Income Seniors | Toronto |
| Ontario. Ministry of Health, Sexual Health Infoline Ontario | Toronto Downtown |
| General Topics and Information - Central East, Ontario. Ministry of Health and Long-Term Care, Wait Times in Ontario | |
| 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 Northern Development, Mines, Natural Resources and Forestry, Southern Region - Peterborough | Peterborough |
| Ontario. Ministry of the Attorney General. Justice Ontario | Toronto |
| Ontario. Office of the Worker Adviser, Scarborough Office, Ontario. Office of the Worker Adviser, Scarborough Office | Toronto |
| Parents for Children's Mental Health, Virtual/Online | Stratford |
| Prisoners HIV / AIDS Support Action Network, Toronto, Prisoners HIV/AIDS Support Action Network | Toronto |
| Prosper Canada, Financial Empowerment | Toronto |
| Quality In Lifelong Learning Network, QUILL Learning Network, Literacy and Basic Skills Support Organization | Huron East |
| 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 - 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, Stratford - 59 Lorne Ave E, Stratford Full Service Counter | Stratford |
| St Marys. Municipal Office, St. Marys - Queen St, Community Outreach Worker | St Marys |
| Stratford Perth Humane Society | Stratford |
| Stratford Pride Community Centre | Stratford |
| Stratford Sunday Market | Stratford |
| Stratford-Perth Pride, Mailing Address | Stratford |
| Tanner Steffler Foundation, TSF Youth Hub | Central Huron |
| Technical Training Group (Stratford & Area), Technical Training Group, Technical and Skilled Trades Training | Stratford |
| The Farmers' Toolbox, Online / Web Service | Perth |
| The Guardian Network, Field Service | Toronto |
| Town of St Marys Home Support Services | St Marys |
| United Way Perth-Huron, Social Research and Planning Council | Stratford |
| Western University - Schulich Medicine & Dentistry, Discovery Healthcare - A Summer Camp Experience, Goderich - Camp Klahanie | Central Huron |
| Western University - Schulich Medicine & Dentistry, Discovery Healthcare - A Summer Camp Experience, Stratford - Stratford General Hospital | Stratford |
| Workers Health and Safety Legal Clinic | Toronto |
| YMCA of Southwestern Ontario, London Administration Office, Youth Gambling Awareness Program, YMCA Learning Centre | London |