| 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, Canine Control Facility | Ramara |
| Ramara Township, Brechin - County Rd 47, Fire and Rescue Services | Ramara |
| Ramara Township, Brechin - Hwy 12, Ramara Centre | Ramara |
| Ramara Township, No physical address, Rest Stations for Extreme Weather Relief | Ramara |
| Ramara Township, Parks and Recreation, Brechin - Hwy 12 | Ramara |
| Recreational Aircraft Association. Collingwood Chapter, Collingwood Chapter, Recreational Aircraft Association, Collingwood Chapter | Clearview (Simcoe County) |
| Recreational Respite, Mobile Service | Southampton |
| Recycle My Electronics, Online / Web Service | Mississauga |
| Redwood Park Communities, Barrie, Furniture Bank | Barrie |
| Redwood Park Communities, Barrie, Housing Programs | Barrie |
| Reflection Centre, Barrie | Barrie |
| Registered Nurses Association of Ontario, South Simcoe Chapter | Toronto |
| Reichmann (Dr Jaak) Psychiatrist and Cognitive Behaviour Therapist | Barrie |
| Renascent | Toronto |
| 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 |
| 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 |
| 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 |
| Roberta Place, Barrie - 489 Essa Rd, Retirement Lodge | Barrie |
| Roberta Place, Barrie - 503 Essa Rd, Long Term Care | Barrie |
| Roca Counselling, Barrie | Barrie |
| Rogers TV Midland, Midland Location, Rogers TV | Midland |
| Ronald McDonald House Charities Toronto | Toronto Downtown Central |
| Rosemont District Fire Department | Mono |
| Rotary Club of Barrie, Mailing Address | Barrie |
| Rotary Club of Barrie Huronia | Barrie |
| Rotary Club of Orillia | Orillia |
| 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, Royal Canadian Legion - Auxiliary | Barrie |
| Royal Canadian Legion, Barrie Branch 147, Royal Canadian Legion, Barrie Branch 147 | Barrie |
| 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, Midland Branch 80 - Gloucester St, Ken Snider Memorial Museum | Midland |
| Royal Canadian Legion, Royal Canadian Legion - Victoria Harbour Branch 523, Meeting Facilities, Victoria Harbour Branch 523 | Victoria Harbour |
| 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 Canadian Legion - Waubaushene Branch 316, Ladies Auxiliary, Waubaushene Branch 316, Waubaushene Branch 316 | Tay |
| Royal Canadian Legion - Waubaushene Branch 316, Waubaushene Branch 316, Royal Canadian Legion, Waubaushene Branch 316 | Tay |
| Royal City Summer Soccer Camp, Barrie | Barrie |
| Royal ProResp | Barrie |
| Royal Victoria Regional Health Centre | 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, David and Catherine 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 - Rotary Place, 2nd Floor, David and Catherine Hudson Regional Cancer Centre, Rotary House Lodge | 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 Ottawa South Support Services, Telephone Service, A Friendly Voice | Ottawa |
| RVH Auxiliary | Barrie |
| Ryan's Hope, Mailing Address | Barrie |