| Renfrew County RCDSB | School Boards | 1999 | 1 | $108,814 |
| Renfrew County RCSSB | School Boards | 1997 | 1 | $103,020 |
| Renfrew County Youth Services | Other Public Sector Employers | 2025 | 2 | $136,439 |
| Renfrew County Youth Services/Phoenix Centre | Other Public Sector Employers | 2008 | 1 | $101,744 |
| Renfrew Victoria & St. Francis Mem. | Hospitals & Boards of Public Health | 2000 | 1 | $133,962 |
| Renfrew Victoria Hospital | Hospitals & Boards of Public Health | 2025 | 91 | $126,701 |
| Research & Innovation | Government of Ontario – Ministries | 2010 | 41 | $114,014 |
| Research St Joseph's – Hamilton (O/A the Research Institute of St. Joe's Hamilton) | Other Public Sector Employers | 2025 | 18 | $116,325 |
| Reseau-femmes du Sud-ouest de l'Ontario (Sarnia-Lambton) | Other Public Sector Employers | 2025 | 1 | $103,880 |
| Resolve Counselling Services Canada | Other Public Sector Employers | 2025 | 2 | $106,603 |
| Resources for Exceptional Children & Youth - Durham Region | Other Public Sector Employers | 2011 | 1 | $105,318 |
| Resources for Exceptional Children and Youth -Durham Region | Other Public Sector Employers | 2025 | 7 | $135,834 |
| Responsible Gambling Council | Other Public Sector Employers | 2008 | 1 | $134,752 |
| Responsible Gambling Council (Ontario) | Other Public Sector Employers | 2025 | 10 | $147,570 |
| Restaurants Canada | Other Public Sector Employers | 2024 | 12 | $165,024 |
| Retirement Homes Regulatory Authority (Rhra) | Other Public Sector Employers | 2022 | 30 | $144,968 |
| Retirement Homes Regulatory Authority / Office de réglementation des maisons de retraite | Other Public Sector Employers | 2012 | 7 | $174,205 |
| Retraite En Action | Other Public Sector Employers | 2021 | 1 | $101,038 |
| Revenue | Government of Ontario – Ministries | 2010 | 138 | $118,039 |
| Rexdale Community Health Centre | Other Public Sector Employers | 2025 | 16 | $194,708 |
| Rexdale Women’s Centre | Other Public Sector Employers | 2024 | 1 | $103,299 |
| Richview Community Care Services Corporation | Other Public Sector Employers | 2025 | 1 | $120,000 |
| Rideau Community Health Services | Other Public Sector Employers | 2025 | 18 | $162,268 |
| Rideau Family Health Team | Other Public Sector Employers | 2023 | 1 | $128,514 |
| Rideau St Lawrence Family Health Team | Other Public Sector Employers | 2023 | 2 | $120,232 |
| Rideau Valley Conservation Authority | Other Public Sector Employers | 2017 | 1 | $112,271 |
| Rideauwood Addiction & Family Services | Other Public Sector Employers | 2017 | 1 | $129,501 |
| Rideauwood Addiction and Family Services | Other Public Sector Employers | 2025 | 2 | $131,676 |
| Right to Play International | Other Public Sector Employers | 2025 | 18 | $167,371 |
| Riipen Networks Inc | Other Public Sector Employers | 2023 | 8 | $109,788 |
| Ring of Fire Infrastructure Development Corporation | Crown Agencies | 2017 | 1 | $138,281 |
| Rise Asset Development | Other Public Sector Employers | 2015 | 1 | $170,000 |
| Ritz Lutheran Villa | Other Public Sector Employers | 2025 | 15 | $116,766 |
| Riverdale Hospital | Hospitals & Boards of Public Health | 1999 | 4 | $156,260 |
| Riverdale Hospital, Toronto | Hospitals & Boards of Public Health | 1998 | 2 | $166,927 |
| Riverside Health Care Fac. Inc. | Hospitals & Boards of Public Health | 2001 | 1 | $119,204 |
| Riverside Health Care Facilities Inc. | Hospitals & Boards of Public Health | 2025 | 92 | $125,906 |
| Riverside Health Care Facility Inc. | Hospitals & Boards of Public Health | 2003 | 1 | $163,133 |
| Riverside Hlth. Care Facility Inc. | Hospitals & Boards of Public Health | 2004 | 1 | $157,599 |
| Riverside Hospital | Hospitals & Boards of Public Health | 1996 | 3 | $132,457 |
| Riverside Hospital -Ottawa | Hospitals & Boards of Public Health | 1997 | 3 | $125,018 |
| Roberts / Smart Centre | Other Public Sector Employers | 2025 | 8 | $116,957 |
| Roberts/Smart Centre | Other Public Sector Employers | 2005 | 1 | $111,761 |
| Roger Neilson Children's Hospice | Other Public Sector Employers | 2025 | 13 | $129,217 |
| Roger Neilson House for Palliative Care | Other Public Sector Employers | 2023 | 2 | $114,943 |
| Roots Community Services Inc | Other Public Sector Employers | 2025 | 1 | $157,427 |
| Roots of Empathy | Other Public Sector Employers | 2025 | 3 | $169,496 |
| Rosaleen Rubino Physiotherapy Professional Corporation | Other Public Sector Employers | 2023 | 1 | $130,000 |
| Rosalie Hall | Other Public Sector Employers | 2025 | 2 | $122,616 |
| Ross Memorial Hospital | Hospitals & Boards of Public Health | 2025 | 185 | $122,241 |
| Rotman CAMH Social Enterprise Development (o/a Rise Asset Development) | Other Public Sector Employers | 2022 | 2 | $187,751 |
| Rouge Valley Health System | Hospitals & Boards of Public Health | 2016 | 183 | $119,279 |
| Row Ontario | Other Public Sector Employers | 2025 | 2 | $114,304 |
| Royal Agricultural Winter Fair | Other Public Sector Employers | 2004 | 2 | $114,666 |
| Royal Botanical Gardens | Other Public Sector Employers | 2025 | 11 | $144,380 |
| Royal Canadian Legion District “D” Care Centres | Other Public Sector Employers | 2025 | 1 | $113,376 |
| Royal Conservatory of Music | Other Public Sector Employers | 2014 | 24 | $183,382 |
| Royal Crest Lifecare Group Inc | Other Public Sector Employers | 2007 | 1 | $102,508 |
| Royal Life Saving Society Canada Ontario Branch | Other Public Sector Employers | 2025 | 10 | $125,860 |
| Royal Ontario Museum | Crown Agencies | 2025 | 200 | $135,611 |
| Royal Ottawa Health Care Group | Hospitals & Boards of Public Health | 2025 | 513 | $123,974 |
| Royal Victoria Hospital of Barrie | Hospitals & Boards of Public Health | 1996 | 1 | $139,500 |
| Royal Victoria Regional Health Centre | Hospitals & Boards of Public Health | 2025 | 991 | $126,267 |
| Runnymede Chronic Care Hospital | Hospitals & Boards of Public Health | 2001 | 1 | $161,150 |
| Runnymede Health Care Centre | Hospitals & Boards of Public Health | 2007 | 2 | $193,042 |
| Runnymede Healthcare Centre | Hospitals & Boards of Public Health | 2025 | 71 | $142,911 |
| Rural Affairs | Government of Ontario – Ministries | 2025 | 23 | $138,485 |
| Rural Healthcare Innovations | Other Public Sector Employers | 2025 | 3 | $130,622 |
| Rural Ontario Institute | Other Public Sector Employers | 2025 | 2 | $108,108 |
| Rygiel Supports for Community Living | Other Public Sector Employers | 2025 | 6 | $124,305 |