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Alphabetical Listing of Services - O - Hamilton Niagara Haldimand Brant
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Oak Centre - Port Colborne - Lake House   Port Colborne
Oak Centre Clubhouse - Welland   Welland
Oakville Community Homes - Normandy Place   Oakville
Oakwood Park Lodge   Niagara Falls
Oasis Addiction Recovery Society   Toronto
Oasis Centre des femmes   Toronto
Occupational Health Clinics for Ontario Workers - Hamilton Clinic   Hamilton
Office of the Information Commissioner of Canada   Gatineau
Office of the Ombudsman of Ontario   Toronto
Office of the Privacy Commissioner of Canada   Gatineau
Older Adult Centres' Association of Ontario   Caledon East
OMama   Ottawa
OmbudService for Life and Health Insurance   Toronto
ONE Fertility - Burlington   Burlington
Online Chronic Disease Self-Management Program  
Ontario Aboriginal HIV/AIDS Strategy   Toronto
Ontario Aboriginal Housing Services   Sault Ste Marie
Ontario Addiction Treatment Centre - Hamilton Clinic   Hamilton
Ontario Addiction Treatment Centre - Niagara Falls Clinic   Niagara Falls
Ontario Addiction Treatment Centre - Welland Clinic   Welland
Ontario Agencies Supporting Individuals with Special Needs  
Ontario AIDS Network   Toronto
Ontario Association for Families of Children with Communication Disorders   Woodstock
Ontario Association for Families of Children with Communication Disorders - Grand Erie Chapter   Simcoe
Ontario Association for Marriage and Family Therapy   Tottenham
Ontario Association for Suicide Prevention   Williamstown
Ontario Association of Children's Aid Societies   Toronto
Ontario Association of Consultants, Counsellors, Psychometrists and Psychotherapists (The)   Toronto
Ontario Association of Food Banks   Toronto
Ontario Association of Interval and Transition Houses   Toronto
Ontario Association of Optometrists - Eye See...Eye Learn   Toronto
Ontario Association of Orthodontists (The)   Toronto
Ontario Association of Public Health Dentistry   Port Hope
Ontario Association of Social Workers   Toronto
Ontario Association of Social Workers - Hamilton Branch   Toronto
Ontario Association of Speech-Language Pathologists and Audiologists   Toronto
Ontario Association of the Deaf   Toronto
Ontario Association on Developmental Disabilities   Toronto
Ontario Bariatric Network  
Ontario Brain Injury Association   St Catharines
Ontario Brain Injury Association - Niagara Region   St Catharines
Ontario Centre for Excellence for Child and Youth Mental Health   Ottawa
Ontario Chiropractic Association   Toronto
Ontario Chronic Disease Prevention Alliance   Toronto
Ontario Coalition of Indigenous Peoples   Wabigoon
Ontario Coalition of Rape Crisis Centres  
Ontario College of Family Physicians   Toronto
Ontario College of Pharmacists   Toronto
Ontario College of Reflexology   New Liskeard
Ontario College of Social Workers and Social Service Workers   Toronto
Ontario Community Support Association   Toronto
Ontario Council of Agencies Serving Immigrants   Toronto
Ontario Deaf Foundation   Burlington
Ontario Dental Association   Toronto
Ontario Energy Board - Ontario Electricity Support Program   Ottawa
Ontario Federation for Cerebral Palsy   Toronto
Ontario Federation of Indigenous Friendship Centres   Toronto
Ontario Harm Reduction Distribution Program   Kingston
Ontario Health Clinics - Brantford - Family Health Organization   Brantford
Ontario Healthy Communities Coalition   Toronto
Ontario HIV Treatment Network   Toronto
Ontario Hospital Association   Toronto
Ontario Human Rights Commission   Toronto
Ontario Immigration  
Ontario Institute for Studies in Education of the University of Toronto - OISE Psychology Clinic   Toronto
Ontario Kinesiology Association   Mississauga
Ontario Long Term Care Association   Toronto
Ontario Medical Association   Toronto
Ontario Medication Return Program  
Ontario Native Literacy Coalition   Ohsweken
Ontario Native Women's Association   Fort William First Nation
Ontario Neurotrama Foundation   Toronto
Ontario Opticians Association   Willowdale
Ontario Pain Foundation   Burlington
Ontario Paper Thorold Seniors Centre   Thorold
Ontario Partnership on Aging and Developmental Disabilities   Thornhill
Ontario Pet Loss Support Group   Mississauga
Ontario Pharmacists Association   Toronto
Ontario Physiotherapy Association   Toronto
Ontario Podiatric Medical Association   Markham
Ontario Poison Centre   Toronto
Ontario Prader-Willi Syndrome Association   Toronto
Ontario Provincial Police - Brant County Detachment   Paris
Ontario Provincial Police - Burlington Detachment   Burlington
Ontario Provincial Police - General Headquarters   Orillia
Ontario Provincial Police - Haldimand County Detachment   Cayuga
Ontario Provincial Police - Niagara Detachment   Niagara Falls
Ontario Provincial Police - Norfolk County Detachment   Simcoe
Ontario Psychological Association   Toronto
Ontario Public Health Association   Toronto
Ontario Retirement Communities Association   Oakville
Ontario Rett Syndrome Association   London
Ontario Senior Games Association - Halton District 21   Milton
Ontario Sharps Disposal Program  
Ontario Society of Chiropodists   Newmarket
Ontario Society of Occupational Therapists   Toronto
Ontario Society of Psychotherapists   Toronto
Ontario Society of Senior Citizens' Organizations   Toronto
Ontario Special Education Tribunals   Toronto
Ontario St Walk-in Clinic   St Catharines
Ontario Students Against Impaired Driving   Toronto
Ontario Telemedicine Network (OTN)   Toronto
Ontario Tenants Rights  
Ontario Track 3 Ski Association for the Disabled - Glen Eden   Etobicoke
Ontario Trillium Foundation - Brantford Office   Brantford
Ontario Trillium Foundation - Halton Peel Regional Office   Toronto
Ontario Trillium Foundation - Niagara Region Office   St Catharines
Ontario Wheelchair Sports Association (OWSA)   Toronto
Ontario. Employment Ontario  
Ontario. Financial Services Commission of Ontario - Motor Vehicle Accident Claims Fund   Toronto
Ontario. Legislative Assembly of Ontario - Office of the Provincial Advocate for Children and Youth   Toronto
Ontario. Members of Provincial Parliament - Brantford—Brant District   Brantford
Ontario. Members of Provincial Parliament - Burlington District   Burlington
Ontario. Members of Provincial Parliament - Cambridge District   Cambridge
Ontario. Members of Provincial Parliament - Flamborough—Glanbrook District   Hamilton
Ontario. Members of Provincial Parliament - Haldimand—Norfolk District   Simcoe
Ontario. Members of Provincial Parliament - Hamilton Centre District   Hamilton
Ontario. Members of Provincial Parliament - Hamilton East—Stoney Creek District   Hamilton
Ontario. Members of Provincial Parliament - Hamilton Mountain District   Hamilton
Ontario. Members of Provincial Parliament - Hamilton West—Ancaster—Dundas District  
Ontario. Members of Provincial Parliament - Milton District   Milton
Ontario. Members of Provincial Parliament - Niagara Centre District   Welland
Ontario. Members of Provincial Parliament - Niagara Falls District - Fort Erie Office   Fort Erie
Ontario. Members of Provincial Parliament - Niagara Falls District - Niagara Falls Office   Niagara Falls
Ontario. Members of Provincial Parliament - Niagara West District   Beamsville
Ontario. Members of Provincial Parliament - Oakville North—Burlington District   Toronto
Ontario. Members of Provincial Parliament - Oxford District   Woodstock
Ontario. Members of Provincial Parliament - St Catharines District  
Ontario. Ministry of Advanced Education and Skills Development   Toronto
Ontario. Ministry of Agriculture, Food and Rural Affairs - Guelph - Provincial Headquarters   Guelph
Ontario. Ministry of Agriculture, Food and Rural Affairs - Woodstock Resource Centre and Regional Economic Development Office   Woodstock
Ontario. Ministry of Children and Youth Services - Central West Region   Mississauga
Ontario. Ministry of Children and Youth Services - Mississauga - Central Region - Assistance for Children with Severe Disabilities / Special Services At Home   Mississauga
Ontario. Ministry of Children, Community and Social Services   Toronto
Ontario. Ministry of Children, Community and Social Services - Ontario Disability Support Program - Brantford Office   Brantford
Ontario. Ministry of Children, Community and Social Services - Ontario Disability Support Program - Hamilton Office   Hamilton
Ontario. Ministry of Children, Community and Social Services - Ontario Disability Support Program - St Catharines Office   St Catharines
Ontario. Ministry of Children, Community and Social Services - West Regional Office - Hamilton - Children and Youth Services   Hamilton
Ontario. Ministry of Citizenship and Immigration   Toronto
Ontario. Ministry of Citizenship and Immigration - Hamilton - Regional Services and Corporate Support Branch   Hamilton
Ontario. Ministry of Community and Social Services - Ontario Disability Support Program - Simcoe Office   Simcoe
Ontario. Ministry of Community and Social Services - West Region   London
Ontario. Ministry of Community Safety and Correctional Services   Toronto
Ontario. Ministry of Community Safety and Correctional Services - Elgin-Middlesex Detention Centre   London
Ontario. Ministry of Community Safety and Correctional Services - Ontario Correctional Institute   Brampton
Ontario. Ministry of Community Safety and Correctional Services - Southwest Region - Midhurst - Ontario Fire Marshall   Midhurst
Ontario. Ministry of Economic Development, Job Creation and Trade - Regional Services   St Catharines
Ontario. Ministry of Education   Toronto
Ontario. Ministry of Education - Toronto - Early Years and Child Care Division   Toronto
Ontario. Ministry of Education - Trillium Demonstration School   Milton
Ontario. Ministry of Finance   Oshawa
Ontario. Ministry of Francophone Affairs   Toronto
Ontario. Ministry of Government and Consumer Services   Toronto
Ontario. Ministry of Health and Long-Term Care   Toronto
Ontario. Ministry of Health and Long-Term Care - Hamilton - Compliance and Inspection   Hamilton
Ontario. Ministry of Health and Long-Term Care - Hamilton - OHIP Claims Office   Hamilton
Ontario. Ministry of Health and Long-Term Care - Mississauga Central Ambulance Communications Centre - Emergency Health Services   Mississauga
Ontario. Ministry of Indigenous Affairs   Toronto
Ontario. Ministry of Labour   Toronto
Ontario. Ministry of Labour - Hamilton/Halton/Brant Regional Office   Hamilton
Ontario. Ministry of Labour - London Office   London
Ontario. Ministry of Labour - Niagara Regional Office   St Catharines
Ontario. Ministry of Municipal Affairs and Housing - Disaster Recovery Assistance  
Ontario. Ministry of Municipal Affairs and Housing - Rental Housing Enforcement Unit   Toronto
Ontario. Ministry of Seniors Affairs   Toronto
Ontario. Ministry of the Attorney General   Toronto
Ontario. Ministry of the Attorney General - Brantford - Victim Witness Assistance Program   Brantford
Ontario. Ministry of the Attorney General - Cayuga - Munsee St - Family Law Information Centre   Cayuga
Ontario. Ministry of the Attorney General - Central West Region - Victim/Witness Assistance Program   Hamilton
Ontario. Ministry of the Attorney General - Family Law Information Centre - Brantford   Brantford
Ontario. Ministry of the Attorney General - Hamilton - Family Law Information Centre   Hamilton
Ontario. Ministry of the Attorney General - London Office - Office of the Public Guardian and Trustee   London
Ontario. Ministry of the Attorney General - Niagara Falls - Family Law Information Centre   Niagara Falls
Ontario. Ministry of the Attorney General - Office of the Public Guardian and Trustee (The) - Hamilton   Hamilton
Ontario. Ministry of the Attorney General - St Catharines - Family Law Information Centre   St Catharines
Ontario. Ministry of the Attorney General - St Catharines - Victim/Witness Assistance Program   St Catharines
Ontario. Ministry of the Attorney General - Welland - Family Law Information Centre   Welland
Ontario. Ministry of the Attorney General - Welland - Victim/Witness Assistance Program   Welland
Ontario. Ministry of the Environment and Climate Change - London Regional Office   London
Ontario. Ministry of the Environment, Conservation and Parks   Toronto
Ontario. Ministry of the Environment, Conservation and Parks - Niagara District Office   St Catharines
Ontario. Ministry of the Status of Women   Toronto
Ontario. Ministry of Transportation   Toronto
Ontario. Ministry of Transportation - Georgetown Location - Senior Driver Renewal Program   Georgetown
Ontario. Ministry of Transportation - St Catharines Head Office   St Catharines
Ontario. Ontario Ministry of Labour - Office of the Worker Adviser - Hamilton   Hamilton
Ontario. Service Ontario - Cayuga - Echo St W - Haldimand Land Registry Office 18   Cayuga
Ontario. Service Ontario - Land Registry Office - Wentworth   Hamilton
Ontario. ServiceOntario - Brant   Brant
Ontario. ServiceOntario - Brant Land Registry Office 2   Brantford
Ontario. ServiceOntario - Brantford   Brantford
Ontario. ServiceOntario - Burlington - Brant St   Burlington
Ontario. ServiceOntario - Burlington - Fairview St   Burlington
Ontario. ServiceOntario - Caledonia   Caledonia
Ontario. ServiceOntario - Dunnville   Dunnville
Ontario. ServiceOntario - Fort Erie   Fort Erie
Ontario. ServiceOntario - Grimsby   Grimsby
Ontario. ServiceOntario - Haldimand County   Hagersville
Ontario. ServiceOntario - Hamilton - Centennial Pkwy N   Hamilton
Ontario. ServiceOntario - Hamilton - Dundas St E (Waterdown)   Hamilton
Ontario. ServiceOntario - Hamilton - Dundurn St S   Hamilton
Ontario. ServiceOntario - Hamilton - King St E (Dundas)   Hamilton
Ontario. ServiceOntario - Hamilton - King St W   Hamilton
Ontario. ServiceOntario - Hamilton - Upper James St   Hamilton
Ontario. ServiceOntario - Hamilton - Upper Ottawa St   Hamilton
Ontario. ServiceOntario - Land Registry Office - Niagara North and South   St Catharines
Ontario. ServiceOntario - Milton - Highpoint Service Counter   Milton
Ontario. ServiceOntario - Milton - Highpoint Service Counter - Land Registry Office 20 - Halton   Milton
Ontario. ServiceOntario - Niagara Falls   Niagara Falls
Ontario. ServiceOntario - Niagara-on-the-Lake   Niagara-on-the-Lake
Ontario. ServiceOntario - Norfolk County   Port Dover
Ontario. ServiceOntario - Pelham   Fonthill
Ontario. ServiceOntario - Port Colborne   Port Colborne
Ontario. ServiceOntario - Simcoe - Frederick Hobson VC Dr - Norfolk Land Registry Office 37   Simcoe
Ontario. ServiceOntario - St Catharines - Scott St   St Catharines
Ontario. ServiceOntario - St Catharines - St Paul St   St Catharines
Ontario. ServiceOntario - Welland   Welland
Ontario. ServiceOntario - West Lincoln   Smithville
Ontario. ServiceProfile - Simcoe   Simcoe
Oonuhseh Niagara Native Homes   St Catharines
Open Arms Mission Welland   Welland
Open Arms of Jesus Outreach Ministry   St Catharines
Operation Come Home   Ottawa
Operational Stress Injury Social Support - Southwestern Ontario   London
Ophea   Toronto
Opioid Dependence  
Options Mississauga   Mississauga
Orchard Terrace Care Centre   Stoney Creek
Osteoporosis Canada   Toronto
Ostomy  
Ostomy Canada Society   Mississauga
Ostomy Canada Society - Ontario Chapter - Halton/Peel Peer Support Group   Oakville
Our Kids Network   Burlington
Our Place Community of Hope Centre   Toronto
Out of the Cold   Hamilton
Ovarian Cancer Canada   Toronto
Overeaters Anonymous - Burlington   Burlington
Overeaters Anonymous - Dundas   Dundas
Overeaters Anonymous - Hamilton - Mohawk Rd W   Hamilton
Overeaters Anonymous - Hamilton Mountain   Hamilton
Overeaters Anonymous - Mississauga/Burlington Area   Toronto
Overeaters Anonymous - St Catharines   St Catharines
Overeaters Anonymous - Waterdown   Waterdown
Oxygen and Respiratory Services  
Ozanam Centre (The)   St Catharines
HNHB Concussion Resources