Organization / Program Name(s) Located In
Oakdale Child and Family Services, Oakdale Child and Family ServiceSpringwater
OCD NorthBarrie
OCD WellnessBarrie
Ogemawahj Tribal Council, Ogemawahj Tribal Training and Economic Resources, Rama - 5984 Rama RdChippewas of Rama First Nation
Ombudsman OntarioToronto
Ombudsman Ontario 
Once Upon a ChildBarrie
One Roof, MidlandMidland
Ontario Aboriginal Housing ServicesSault Ste. Marie
Ontario Association of Optometrists, Toronto - Adelaide St E, Eye See...Eye LearnToronto Downtown Central
Ontario Clean Water Agency, Georgian Bay Highlands PlantSpringwater
Ontario College of TradesToronto Downtown
Ontario Dental AssociationToronto Downtown North
Ontario Energy Board (Central East)Toronto
Ontario Energy Board (Central East), Central East Ontario - No Physical Address, Low-Income Energy Assistance Program (LEAP) - Central East Application SitesToronto
Ontario English Catholic Teachers Association. Simcoe Muskoka UnitBarrie
Ontario Federation of Anglers and Hunters, Invading Species Awareness ProgramPeterborough
Ontario Federation of Anglers and HuntersPeterborough
Ontario Federation of Snowmobile Clubs, Mailing AddressBarrie
Ontario Federation of Snowmobile Clubs, Simcoe County, Mid Ontario Snowmobile TrailsTay
Ontario Genealogical Society, Simcoe County Branch - Mailing AddressBarrie
Ontario Health - Trillium Gift of Life NetworkToronto Downtown Central
Ontario Hooking Craft Guild, Mailing AddressMinesing
Ontario Human Rights Commission, 180 Dundas St WToronto Downtown
Ontario Medical Imaging, MidlandMidland
Ontario Ministry of Natural Resources and Forestry, Ontario Hunter Education ProgramPeterborough
Ontario Motor Vehicle Industry CouncilToronto
Ontario NatureToronto Downtown
Ontario Northland / Hammond Coach Line, OrilliaOrillia
Ontario Parole Board, Victim SupportToronto
Ontario Photo CardOntario
Ontario Poison CentreToronto Downtown Central
Ontario Provincial Police, Midland - Hwy 12, Southern Georgian Bay DetachmentMidland
Ontario Provincial Police, OPP Satellite Office - Penetanguishene, Penetanguishene Satellite OfficePenetanguishene
Ontario Provincial Police, Orillia - Memorial, General HeadquartersOrillia
Ontario Provincial Police, Southern Georgian Bay Detachment - Midland Office, Southern Georgian Bay Detachment - Meeting FacilitiesMidland
Ontario Provincial Police, Southern Georgian Bay Detachment, Midland - Second StMidland
Ontario Provincial Police, Wasaga Beach, Huronia West DetachmentWasaga Beach
Ontario Registered Music Teachers Association, No Physical AddressBarrie
Ontario Secondary School Teachers' Federation, Barrie, Simcoe County District 17Barrie
Ontario Senior Games AssociationBarrie
Ontario Society for the Prevention of Cruelty to Animals, OrilliaOrillia
Ontario SPCA and Humane Society, Barrie - 91 Patterson Rd, Ontario SPCA - Barrie Animal CentreBarrie
Ontario SPCA and Humane Society, Barrie - 91A Patterson Rd, Marion Vernon Memorial Animal ClinicBarrie
Ontario SPCA Midland & District Animal CentreTay
Ontario SPCA Midland & District Animal Centre, Midland et District, Carver Off-Leash Dog ParkTay
Ontario Track3 Adaptive Sports AssociationToronto
Ontario Trails CouncilDeseronto
Ontario Vipassana Centre, Egbert, Dhamma Torana 
Ontario Water Centre (The)Georgina
Ontario, Ministry of the Solicitor General, Barrie, Probation and Parole Services, BarrieBarrie
Ontario, Ministry of the Solicitor General, Southwest Region - Midhurst, Ontario Fire MarshallSpringwater
Ontario. Members of Provincial Parliament, Barrie-Springwater-Oro-Medonte Riding, Provincial Constituency Office - Doug DowneyBarrie
Ontario. Members of Provincial Parliament, Simcoe North Riding - Orillia Office, Provincial Constituency Office - Jill Dunlop, Simcoe North RidingOrillia
Ontario. Ministry of Advanced Education and Skills Development, Employment Ontario HotlineToronto Downtown
Ontario. Ministry of Children, Community and Social ServicesBarrie
Ontario. Ministry of Children, Community and Social Services, Barrie - Bayfield St, Youth Justice DivisionBarrie
Ontario. Ministry of Children, Community and Social Services, Barrie - Ferris Lane, Passport ProgramBarrie
Ontario. Ministry of Children, Community and Social Services, Newmarket Office, Special Services at Home and Assistance for Children with Severe DisabilitiesNewmarket
Ontario. Ministry of Children, Community and Social Services, Ontario Child Benefit, Mailing address 
Ontario. Ministry of Children, Community and Social Services, Post Adoption Disclosure UnitToronto
Ontario. Ministry of Children, Community and Social Services. Family Responsibility OfficeToronto
Ontario. Ministry of Children, Community and Social Services. Victim Support LineToronto
Ontario. Ministry of Community and Social Services, Employment and Training Start Up Benefit, OrilliaOrillia
Ontario. Ministry of Community and Social Services, Employment Supports, OrilliaOrillia
Ontario. Ministry of Economic Development and Growth, Simcoe Muskoka OfficeSpringwater
Ontario. Ministry of Education, Central East Region, Education Catch Up PaymentsToronto
Ontario. Ministry of Education, Central East Region, Child Care Quality Assurance and LicensingToronto
Ontario. Ministry of Environment, Conservation and ParksBarrie
Ontario. Ministry of Environment, Conservation and Parks, Awenda Provincial Park, Ontario Parks - Awenda Provincial ParkPenetanguishene
Ontario. Ministry of Environment, Conservation and Parks, Copeland Forest, Midhurst (Huronia) District OfficeSpringwater
Ontario. Ministry of Environment, Conservation and Parks, Midhurst District Office, Midhurst (Huronia) District OfficeSpringwater
Ontario. Ministry of Environment, Conservation and Parks, Oro-Medonte, Ontario Parks - Bass Lake Provincial ParkOrillia
Ontario. Ministry of Environment, Conservation and Parks, Port Severn, Ontario Parks - Six Mile Lake Provincial ParkPort Severn
Ontario. Ministry of Health, Trillium Drug ProgramEtobicoke
Ontario. Ministry of Health, Health Care ConnectToronto Downtown Central
Ontario. Ministry of Health, Health811Toronto Downtown Central
Ontario. Ministry of Health, Ontario Health Insurance PlanToronto Downtown Central
Ontario. Ministry of Health, Toronto - University Avenue, Dental Care For Low-Income SeniorsToronto
Ontario. Ministry of Labour, Immigration, Training and Skills Development, Barrie Regional Office, Apprenticeship OfficeBarrie
Ontario. Ministry of Labour, Immigration, Training and Skills Development, Employment Ontario Contact CentreToronto
Ontario. Ministry of Labour, Immigration, Training and Skills Development. Employment Practices BranchToronto
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, NewmarketNewmarket
Ontario. Ministry of Labour, Training and Skills Development, Online/Web Serivce, Labour Market InformationOntario
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Office 301, Enforcement and Finance - Sheriff's OfficeBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Office 301, Estates AdministrationBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Office 301, Jury LineBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Office 301, Superior Court of Justice - Civil Filing OfficeBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Office 301, Superior Court of Justice - Family CourtBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Office 301, Superior Court of Justice - Small Claims CourtBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Room 303, Family Law Information CentreBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Room 313, Manager of Court Operations OfficeBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Room 412, Superior Court of Justice - Trial Coordinators OfficeBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St - Room 501, Ontario Court of Justice - Criminal CourtBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St 5th Floor, Crown AttorneyBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St 5th Floor, Justice of the Peace - Criminal MattersBarrie
Ontario. Ministry of the Attorney General, Barrie - Mulcaster St 5th Floor, Victim / Witness Assistance ProgramBarrie
Ontario. Ministry of the Attorney General. Justice OntarioToronto
Ontario. Ministry of the Solicitor General, Midland, Probation and Parole Services, MidlandMidland
Ontario. Ministry of the Solicitor General, Orillia, Probation and Parole Office, OrilliaOrillia
Ontario. Ministry of the Solicitor General, Penetanguishene, Central North Correctional CentrePenetanguishene
Ontario. Ministry of Tourism, Culture and Sport, Barrie, Ontario Travel Information CentreBarrie
Ontario. Ministry of Tourism, Culture and Sport, Midhurst Office, Grants Administration and Community DevelopmentSpringwater
Ontario. Ministry of Tourism, Culture and Sport, Midhurst Office, Tourism Regional OfficeSpringwater
Ontario. Ministry of Transportation, Barrie - Commerce Park Dr, Central Region - International Registration PlanBarrie
Ontario. Ministry of Transportation, Barrie - No physical address, Senior Driver's Licence Renewal ProgramBarrie
Operation Christmas Child, Simcoe WestBarrie
Operation Christmas Child, Wasaga BeachWasaga Beach
Operation Ukrainian Safe Haven, Simcoe CountySimcoe County
OPP ChorusBarrie
Optimum Potential Chiropractic and NutritionOrillia
Order of The Eastern Star - Manson J. Bradley Chapter, #240, Chapter # 240 - Midland, Order of The Eastern StarMidland
Orillia & District Arts Council, Cretive Nomad StudiosOrillia
Orillia Alliance ChurchOrillia
Orillia and Area Physician Recruitment and Retention CommitteeOrillia
Orillia and District Camera Club, Orillia Rotary PlaceOrillia
Orillia Central Preschool, North - Laclie St, North - Infant, Toddlers and Preschoolers ProgramsOrillia
Orillia Central Preschool, South - Oxford St, South - Infant, Toddlers and Preschoolers ProgramsOrillia
Orillia Channel Cats Swim ClubOrillia
Orillia Christian SchoolOrillia
Orillia Community Nonprofit Housing CorporationOrillia
Orillia Fertility AssociatesOrillia
Orillia Fine Arts AssociationOrillia
Orillia Lawn Bowling ClubOrillia
Orillia Museum of Art and History (The)Orillia
Orillia Opera HouseOrillia
Orillia Paediatric Teaching AssociatesOrillia
Orillia Public Library, Orillia, General Services and OutreachOrillia
Orillia Scottish FestivalOrillia
Orillia Soldiers' Memorial Hospital, Birthing Preparation Program, Orillia - 170 Colborne St WOrillia
Orillia Soldiers' Memorial Hospital, Children's Therapy Services, Orillia - 170 Colborne St WOrillia
Orillia Soldiers' Memorial Hospital, Emergency Department, Orillia - 170 Colborne St WOrillia
Orillia Soldiers' Memorial Hospital, Midland - EarlyON Child and Family Centre, After Baby GroupMidland
Orillia Soldiers' Memorial Hospital, Outpatient Physiotherapy, Orillia - 170 Colborne St WOrillia
Orillia Soldiers' Memorial Hospital, Regional Domestic Violence Treatment Centre, Orillia - 170 Colborne St WOrillia
Orillia Soldiers' Memorial Hospital FoundationOrillia
Orillia, City of, Orillia Wheelchair Limousine ServiceOrillia
Orillia, City of, Orillia - 500 Gill St, Fire DepartmentOrillia
Orillia's Little Big BandOrillia
Orr Lake Golf ClubElmvale
Orr Lake Ratepayers Association 
Osteoporosis Canada [Central East], Simcoe Muskoka - Mailing Address, Simcoe Muskoka ChapterClearview (Simcoe County)
Our Lady of Lourdes Catholic School. ElmvaleElmvale
Our Town Food BankTottenham
Ovarian Cancer CanadaToronto Downtown
Overall Independence, Mailing AddressBarrie
Overeaters Anonymous, St Paul's Center Orillia OA Group, Living in RecoveryOrillia
Owen Hill Care Community, Barrie, Long Term Care HomeBarrie
Oxfam CanadaOttawa
Oxford College, Bayfield MallBarrie