| RODAC 1877261 · TMA1097451 | ENTREPRISE ROBERT THIBERT INC. | 1 Chemicals3 Cosmetics6 Metal+11 | Registered | 2021 |
| RODAC 0383893 · TMA211763 | BECTON DICKINSON AND COMPANY | 9 Electronics | Registered | 1976 |
| ROTAGO 1818608 · TMA1032243 | Boston Scientific Scimed, Inc. | 10 Medical12 Vehicles | Registered | 2019 |
| RODECS 1480206 · TMA882891 | an individual | 35 Advertising40 Treatment42 Science | Registered | 2014 |
| ROTHCO 1386166 · TMA758828 | Morris Rothenberg & Son, Inc. | 25 Clothing35 Advertising | Registered | 2010 |
| RODEC 1071472 · TMA549464 | Robbins & Myers Canada, Ltd. | 5 Pharmaceuticals6 Metal7 Machines+1 | Registered | 2001 |
| RODEC 1071471 · TMA549466 · design | Robbins & Myers Canada, Ltd. | 5 Pharmaceuticals6 Metal7 Machines+1 | Registered | 2001 |
| REDCO 0511977 · TMA294182 | REDWOOD PLASTICS AND RUBBER CORP. | 1 Chemicals17 Rubber40 Treatment | Registered | 1984 |
| ROADAGE 1489984 · TMA801325 · design | Owner not shown | 12 Vehicles | Registered | 2011 |
| ROTESCO 0486630 · TMA275862 | ROTESCO LTD. | 6 Metal42 Science | Registered | 1983 |
| REDESCO 2112728 · design | Titan Clean Energy Projects Corporation | 17 Rubber | Pending | 2021 |
| RADIUS 360° 2264645 · TMA1283414 | Full Circle International, Inc. | 7 Machines8 Hand | Registered | 2025 |
| ROADX 2236536 · TMA1254182 · design | SAILUN GROUP CO. LTD. | 12 Vehicles | Registered | 2024 |
| ROOTS 2231736 · TMA1248979 | Roots Corporation | 9 Electronics35 Advertising41 Education+1 | Registered | 2024 |
| ROUTICA 2226218 · TMA1250236 | Ositech Communications Inc. | 9 Electronics | Registered | 2024 |
| Redkey 2223132 · TMA1248795 | an individual | 7 Machines | Registered | 2024 |
| RTEX 2212297 · TMA1243093 | DAVEY TEXTILE SOLUTIONS INC. | 24 Textiles | Registered | 2024 |
| ROETYCE 2211985 · TMA1243044 · design | Guangzhou Zitai Network Technology Co., Ltd. | 16 Paper | Registered | 2024 |
| RADIUS 2204459 · TMA1241303 | TBL Licensing LLC | 25 Clothing | Registered | 2024 |
| RTSAH 2194359 · TMA1242561 | an individual | 9 Electronics14 Jewellery18 Leather+5 | Registered | 2024 |
| RADIUS 2189782 · TMA1233632 | National Carwash Solutions, Inc. | 7 Machines | Registered | 2024 |
| ready2co 2168437 · TMA1271081 | Owner not shown | 35 Advertising36 Finance39 Transport+1 | Registered | 2024 |
| RATS 2162745 · TMA1219267 | Sled Distribution, LLC | 10 Medical | Registered | 2024 |
| RTSU 2150228 · TMA1208629 | an individual | 11 Lighting | Registered | 2023 |
| ReedCA 2147522 · TMA1216280 | an individual | 25 Clothing | Registered | 2023 |