| Radio Cab of Stratford | Stratford |
| Raglan Village | Collingwood |
| Rainbow Service Organization | Peterborough |
| Rainbows For All Children Canada, Canadian National Office, Rainbows For All Children Canada, Canadian National Office | Barrie |
| Rainbows For All Children Canada, Canadian National Office, Silver Linings Program | Barrie |
| Rainbows For All Children Canada, Collingwood - No Physical Address, Rainbows Georgian Triangle | Collingwood |
| Rama Health Centre, Mnjikaning Arena Sports Ki, Annual Health Fair | Chippewas of Rama First Nation |
| Rama Health Centre, Rama Rd, Home and Community Care | Chippewas of Rama First Nation |
| Rama Health Centre, Rama Rd | Chippewas of Rama First Nation |
| Rama Paramedic Services, Rama | Chippewas of Rama First Nation |
| Rama Police Service | Chippewas of Rama First Nation |
| Ramara Township, Brechin - 2297 Hwy 12, Infrastructure | Ramara |
| Ramara Township, Brechin - 2297 Hwy 12, Municipal Office | Ramara |
| Ramara Township, Brechin - 2297 Hwy 12, Ramara Chamber of Commerce | Brechin |
| Ramara Township, Brechin - County Rd 47, Fire and Rescue Services | Ramara |
| Ramara Township, Canine Control Facility, Brechin - County Rd 47 | Ramara |
| Ramara Township, No physical address, Rest Stations for Extreme Weather Relief | Ramara |
| REACH Centre Grey Bruce | Owen Sound |
| REACH Huron | Central Huron |
| Rebound Child & Youth Services Northumberland, CHOICES | Cobourg |
| Rebound Child & Youth Services Northumberland, Mental Health Services | Cobourg |
| Rebound Child & Youth Services Northumberland, READbound Tutoring Program | Cobourg |
| Rebound Child & Youth Services Northumberland, Administration | Cobourg |
| Rebound Child & Youth Services Northumberland, Youth Justice Diversion Programs - Diversion and Supportive Services | Cobourg |
| Recovery International, Muskoka Lakes Township Branch | Huntsville |
| Recovery Muskoka, Gravenhurst, Addiction Treatment and Medical Walk-in Clinic | Gravenhurst |
| Recreational Aircraft Association. Collingwood Chapter, Collingwood Chapter, Recreational Aircraft Association, Collingwood Chapter | Clearview (Simcoe County) |
| Recreational Respite, Mobile Service | Southampton |
| Redline Taxi | Owen Sound |
| Redwood Park Communities, Barrie, Furniture Bank | Barrie |
| Redwood Park Communities, Barrie, Housing Programs | Barrie |
| Reflection Centre, Barrie | Barrie |
| Regent Health Services, Individual, Couple, and Family Counselling | Lindsay |
| Regional Support Associates, Walkerton, Support Services for Adults with Intellectual Disabilities, Walkerton | Brockton |
| Registered Nurses Association of Ontario, South Simcoe Chapter | Toronto |
| Reichmann (Dr Jaak) Psychiatrist and Cognitive Behaviour Therapist | Barrie |
| Remedy's Rx Lansdowne Pharmacy, Virtual Clinic | |
| Renascent | Toronto |
| Renascent | Brooklin |
| Repetitions New & Resale Boutique | Stratford |
| Rescue Lake Simcoe Coalition | Aurora |
| re-Source Thrift Shop, Barrie - Cundles Rd E, Barrie North Store | Barrie |
| re-Source Thrift Store, Barrie - Commerce Park Dr, Barrie South Store | Barrie |
| Respite4U Agency | Severn |
| ReThreads | West Grey |
| Retired Teachers of Ontario / Les Enseignantes et Enseignants Retraités de l'Ontario (RTOERO), District 17-Simcoe County | Simcoe |
| Rexall Drug Store, Chesley | Chesley |
| Rexall Drug Store, Owen Sound - 1415 1st Ave | Owen Sound |
| Rexall Drug Store, Southampton | Saugeen Shores |
| Rexall Pharma Plus, Goderich | Goderich |
| Rexall Pharma Plus, Owen Sound - 1507 9th Ave | Owen Sound |
| Rexall Pharma Plus, Owen Sound - 963 2nd Ave | Owen Sound |
| Rexall Pharma Plus, Hanover | Hanover |
| Rexall Pharma Plus, Kincardine | Kincardine |
| Rexall Pharma Plus, Port Elgin | Saugeen Shores |
| Rexall Pharmacy, Meaford | Meaford (Town of) |
| RGA and The Space Within, Huron St | Stratford |
| RGA and The Space Within, Market Square | Stratford |
| Rhema Christian School, County Rd 4, Elementary School Program | Douro-Dummer |
| Rhema Christian School, County Rd 4, Little Teapot Pre-school Program | Douro-Dummer |
| Right At Home Canada [Central East], Collingwood, Right At Home Canada | Collingwood |
| Right At Home Canada [Central East], Midland, Right At Home Canada | Midland |
| Right At Home Canada [Central East], Muskoka Region, Right At Home Canada | |
| Right At Home Canada [Central East], Owen Sound, Right At Home Canada | Owen Sound |
| Right At Home Canada [Central East], Thornbury, Right At Home Canada | Blue Mountains |
| Right at Home Canada [Peterborough] | Peterborough |
| Right to Heal, Peterborough | Peterborough |
| Ripley and District Christmas Hamper Program | Kincardine |
| RISE: Resource Centre for Independent Living | Parry Sound |
| Ritz Lutheran Villa/West Perth Village, Mitchell | West Perth |
| River Run Fellowship, CAPmoneycourse | Peterborough |
| Riverdale Christian Academy | Barrie |
| Riverwise Psychological Services, Barrie | Barrie |
| RNR Patient Transfer Services, Orillia | Orillia |
| Road to Recovery Addiction Clinic, Barrie - Anne St S, Addiction Clinic | Barrie |
| Road to Recovery Addiction Clinic, Barrie - Dunlop St W, Addiction Clinic | Barrie |
| Road to Recovery Addiction Clinic, Bradford, Addiction Clinic | Bradford West Gwillimbury |
| Roberta Place, Barrie - 489 Essa Rd, Retirement Lodge | Barrie |
| Roberta Place, Barrie - 503 Essa Rd, Long Term Care | Barrie |
| Roca Counselling, Barrie | Barrie |
| Rock Mills Fellowship Baptist Church | Grey Highlands |
| Rogers TV Barrie. Community Television | Barrie |
| Rogers TV Midland, Midland Location, Rogers TV | Midland |
| Roman Catholic Diocese of Hamilton (The), Office for Refugees | Hamilton West |
| Ronald McDonald House Charities Toronto | Toronto Downtown Central |
| Room2Grow Pregnancy & Parenting Support Centre | Central Huron |
| Rosemont District Fire Department | Mono |
| Ross Memorial Hospital Kawartha Lakes, Ross Memorial Hospital, Mental Health Outpatient Program & Community Counselling | Lindsay |
| Ross Memorial Hospital Kawartha Lakes, Ross Memorial Hospital | Lindsay |
| Rosseau Lake College | Seguin |
| Rotary Club of Barrie, Mailing Address | Barrie |
| Rotary Club of Barrie Huronia | Barrie |
| Rotary Club of Brighton | Brighton (Municipality of) |
| Rotary Club of Campbellford | Trent Hills |
| Rotary Club of Cobourg | Cobourg |
| Rotary Club of Colborne | Cramahe |
| Rotary Club of Festival City Stratford, Zion Lutheran Church - Basement | Stratford |
| Rotary Club of Goderich, Goderich - Mailing Address Only | Goderich |
| Rotary Club of Grand Bend | Lambton Shores |
| Rotary Club of Gravenhurst, Gravenhurst | Gravenhurst |
| Rotary Club of Huntsville, Huntsville | Huntsville |
| Rotary Club of Meaford, Meaford | Meaford |
| Rotary Club of Mitchell, Mitchell | West Perth |
| Rotary Club of Northumberland Sunrise, Mailing Address | Cobourg |
| Rotary Club of Orillia | Orillia |
| Rotary Club of Port Hope, Mailing Address | Port Hope (Municipality of) |
| Rotary Club of St. Marys, St. Marys | St Marys |
| Rotary Club of Stratford | Stratford |
| Rotary Club of the Northern Bruce Peninsula, Lion's Head, District 6330 | Northern Bruce Peninsula |
| Rotary Hospice Stratford Perth | Stratford |
| Rotary Hospice Stratford Perth, Visiting Hospice Services | Stratford |
| Royal Canadian Air Force Association of Canada, Barrie - Mailing Address, RCAF 441 (Huronia) Wing | Barrie |
| Royal Canadian Legion | Clearview (Simcoe County) |
| Royal Canadian Legion, Barrie Branch 147, Banquet Hall | Barrie |
| Royal Canadian Legion, Barrie Branch 147, Royal Canadian Legion - Auxiliary | Barrie |
| Royal Canadian Legion, Barrie Branch 147, Royal Canadian Legion, Barrie Branch 147 | Barrie |
| Royal Canadian Legion, Brussels, Brussels Branch 218 | Brussels |
| Royal Canadian Legion, Burk's Falls, Burk's Falls Branch 405 | Burk's Falls |
| Royal Canadian Legion, Chesley, Chesley Branch 144 | Arran-Elderslie |
| Royal Canadian Legion, Clinton, Branch 140-Harry B Miner VC, CG | Clinton |
| Royal Canadian Legion, Colborne Branch 187, Colborne | Cramahe |
| Royal Canadian Legion, Colborne, Christmas Hamper | Cramahe |
| Royal Canadian Legion, Collingwood, Collingwood Branch 63 - Ex-service Personnel and Dependents Program | Collingwood |
| Royal Canadian Legion, Collingwood, Collingwood Branch 63 | Collingwood |
| Royal Canadian Legion, Creemore Branch 397 - Ladies Auxiliary, Creemore | Clearview (Simcoe County) |
| Royal Canadian Legion, Creemore, Creemore Branch 397 | Clearview (Simcoe County) |
| Royal Canadian Legion, Elmvale District Branch 262, Meeting Facilities, Elmvale Branch 262 | Elmvale |
| Royal Canadian Legion, Exeter, R E Pooley - Branch 167 Exeter | South Huron |
| Royal Canadian Legion, Fenelon Falls, Free Christmas Dinner | Kawartha Lakes |
| Royal Canadian Legion, Flesherton, Flesherton Markdale Branch 333 | Flesherton |
| Royal Canadian Legion, Goderich, Goderich Branch 109 | Goderich |
| Royal Canadian Legion, Goderich, Goderich Branch 109 - Ladies Auxiliary | Goderich |
| Royal Canadian Legion, Hanover, Hanover Branch 130 | Hanover |
| Royal Canadian Legion, Hensall, Hensall Branch 468 | Hensall |
| Royal Canadian Legion, Kincardine, MacDonald Branch 183 Kincardine | Kincardine |
| Royal Canadian Legion, Lion's Head, Lion's Head Branch 202 | Lion's Head |
| Royal Canadian Legion, Listowel, Listowel Branch 259 | Listowel |
| Royal Canadian Legion, Lucknow, Branch 309 | Huron-Kinloss |
| Royal Canadian Legion, Midland Branch 80 - Gloucester St, Ken Snider Memorial Museum | Midland |
| Royal Canadian Legion, Mitchell Legion Branch 128, Mitchell Branch 128 | Mitchell |
| Royal Canadian Legion, Paisley, Paisley Branch 295 | Arran-Elderslie |
| Royal Canadian Legion, Port Carling, Port Carling Branch 529 | Muskoka Lakes Township |
| Royal Canadian Legion, RCL Branch 8 Stratford, Stratford Branch 8 | Stratford |
| Royal Canadian Legion, Royal Canadian Legion - Victoria Harbour Branch 523, Meeting Facilities, Victoria Harbour Branch 523 | Victoria Harbour |
| Royal Canadian Legion, Seaforth Branch 156 | Seaforth |
| Royal Canadian Legion, Tara, Tara Branch 383 | Arran-Elderslie |
| Royal Canadian Legion, Wingham, Wingham Branch 180 | Wingham |
| Royal Canadian Legion - Penetanguishene Branch 68, Penetanguishene Branch 68, Hall Rental | Penetanguishene |
| Royal Canadian Legion - Victoria Harbour Branch 523, Ladies Auxiliary, Royal Canadian Legion - Victoria Harbour Branch 523 | Tay |
| Royal Canadian Legion - Victoria Harbour Branch 523 | Tay |
| Royal ProResp | Barrie |
| Royal Victoria Regional Health Centre, Alliston, Simcoe County Preschool Speech and Language Program | New Tecumseth |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 1st Floor -1 SA, Audiology and Hearing Instrument Dispensing | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 1st Floor, Adult Diabetes Centre | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 1st Floor, Medicine Treatment Clinics | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 1st Floor, Ontario Breast Screening Program | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 1st Floor, Simcoe Muskoka Parry Sound Infant Hearing Program | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 2nd Floor, RVH Health Library | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 3rd Floor, Adult Outpatient Mental Health Day Program | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 3rd Floor, Community Treatment Order Coordination Service | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - 3rd Floor, Medication Clinic | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - Cancer Centre, Hudson Regional Cancer Centre | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr - Mental Health Suite, Emergency Department, Crisis Services | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Birthing Unit Tour | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Cardio-Respiratory Treatment Clinics | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Child and Youth Treatment Clinics | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Emergency Department | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Indigenous Patient Services | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Outpatient Rehabilitation Treatment Clinics | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Patient and Family Experience Office | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Royal Victoria Regional Health Centre Foundation | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, RVH Frozen Meals To Go | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Simcoe Muskoka Parry Sound Blind Low Vision Early Intervention Program | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Simcoe Muskoka Regional Eating Disorder Service | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 201 Georgian Dr, Volunteer Resources | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 66 Wellington St W, Regional Renal Program - Hemodialysis/Peritoneal Dialysis/Multi Care Kidney Clinic | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 70 Wellington St W - Lower Level, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Barrie |
| Royal Victoria Regional Health Centre, Barrie - 70 Wellington St W - Upper Level, Withdrawal Management Services | Barrie |
| Royal Victoria Regional Health Centre, Barrie - Bradford St, Occupational Therapy | Barrie |
| Royal Victoria Regional Health Centre, Barrie - Bradford St, Simcoe County Preschool Speech and Language Program | Barrie |
| Royal Victoria Regional Health Centre, Bradford, Simcoe County Preschool Speech and Language Program | Bradford West Gwillimbury |
| Royal Victoria Regional Health Centre, Collingwood, Simcoe County Preschool Speech and Language Program | Collingwood |
| Royal Victoria Regional Health Centre, Midland - Aberdeen Blvd, Simcoe County Preschool Speech and Language Program | Midland |
| Royal Victoria Regional Health Centre, Midland - Bayshore Dr, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Midland |
| Royal Victoria Regional Health Centre, Orillia Common Roof - Front St S, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Orillia |
| Royal Victoria Regional Health Centre, Orillia Common Roof - Front St S, Simcoe County Preschool Speech and Language Program | Orillia |
| Royal Victoria Regional Health Centre, Telephone Service, Simcoe Muskoka Cancer Screening Hotline | Barrie |
| Royal Victoria Regional Health Centre, Wasaga Beach, North Simcoe Muskoka Rapid Access Addiction Medicine Services | Wasaga Beach |
| Royalty Care | Barrie |
| Rural Home Care, Grey Bruce - Mailing Address | Brockton |
| Rural Ottawa South Support Services, Telephone Service, A Friendly Voice | Ottawa |
| Rural Response for Healthy Children, Christmas Bureau Clinton, Huron Christmas Bureaus | Clinton |
| Rural Response for Healthy Children, Christmas Bureau Exeter, Huron Christmas Bureaus | Exeter |
| Rural Response for Healthy Children, Christmas Bureau Goderich, Huron Christmas Bureaus | Goderich |
| Rural Response for Healthy Children, Christmas Bureau Seaforth, Huron Christmas Bureaus | Seaforth |
| Rural Response for Healthy Children, Christmas Bureau Wingham, Huron Christmas Bureaus | Wingham |
| Rural Response for Healthy Children, Goderich | Goderich |
| Rural Response for Healthy Children, Kinderoo: Entering Kindergarten Resources, Goderich | Goderich |
| RVH Auxiliary | Barrie |
| Rx Drug Mart, Durham | Durham (Village of) |
| Rx Drug Mart, Campbellford | Campbellford |
| Rx Drug Mart, Listowel | Listowel |
| RX Drugmart IDA, Wingham | Wingham |
| Ryan's Hope, Mailing Address | Barrie |
| Ryde Community Co-operative | Gravenhurst |
| Ryerson. Municipal Office | Burk's Falls |